Std Reliefvalve
Content
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Crosby style JOS-E and JBS-E spring loaded API-526 standard pressure relief valves
Introduction
Crosby® Styles JOS-E and JBS-E springloaded pressure relief valves have been engineered to provide high quality overpressure protection for air, gas, steam, vapor, liquid and two-phase applications in an exceptionally rugged, standardized design to the process and power industries. Standard sizes are 1 D 2 to 8 T2 10 with inlet flange ratings of ANSI Cl 150, 300, 600, 900, 1500 and 2500. Standard outlet flanges are ANSI Cl 150 or Cl 300 depending on valve size or rating. Inlet and outlet center-to-face dimensions conform to API Standard 526, Flanged Steel Pressure Relief Valves. Styles JOS-E and JBS-E pressure relief valves are manufactured in accordance with ASME Pressure Vessel Code, Section VIII and capacities are certified by the National Board of Boiler and Pressure Vessel Inspectors. All Crosby pressure relief valve castings and forgings are procured to ASME/ASTM material specifications and are available in a number of material combinations such as Monel®, Hastelloy® and stainless steel. In addition, Styles JOS-E and JBS-E relief valves offer a number of special material combinations such as Titanium, Duplex Stainless Steel and Inconel®, and are available on application. Dimensions of flanges conform to current ANSI Standards. All steel raised face flanges are spiral concentric serrated finish with 45 to 55 grooves per inch and a finish between 125 Ra and 200 Ra. Other flange facings, such as Ring Type Joint, are available on request. For information pertaining to sizing and selection, refer to the AGC SafetySize computer sizing program and Pressure Relief Valve Engineering Handbook (Technical Document No. TP-V300).
Technical Data
Sizes Orifices Inlet Ratings Temperature Range Pressure Range : : : : : 1” D 2” to 8” T2 10” 0.110 to 27.872 in2 [71 to 17981 mm2] ANSI Cl 150, 300, 600, 900, 1500, 2500 -450°F to +1000°F [-268°C to +538°C] JOS-E and JLT-JOS-E: 15 to 6000 psig [1.03 to 413.79 barg] JBS-E and JLT-JBS-E: 25 to 6000 psig [1.72 to 413.79 barg]
Notes
1. Monel® and Inconel® are registered trademarks of the International Nickel Company, Inc. 2. Hastelloy® is a registered trademark of Haynes International, Inc.
www.tycovalves-eu.com
Tyco reserves the right to change the content without notice
AGCDR-0053-EN-0403
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Style JOS-E
Extended service life, reduced cost of ownership superior application versatility • Improved, rugged nozzle ring design. • Improved disc insert retention for ease of maintenance. • Standard Inconel 625 bellows and flange material for superior corrosion resistance, longer service life and a wider range of applications. • Universal disc holder allows for simple and cost-effective conversions from conventional to balanced bellows design. • Standard threaded bellows design for ease of maintenance and conversion from conventional to balanced bellows design. • Improved corrosion resistance with standard 316 stainless steel adjusting bolt locknut and nozzle ring set screw materials. • Style JLT capacities certified on liquids and gas. • Improved parts interchangeability - regardless of top construction. • Field proven style JLT trim* for stable, non-chattering operation on liquid and gas service. • Standard chrome steel spring for -20°F to +650°F [-28°C to +343°C]. • Easily converted to any type cap or lifting lever construction, liquid trim, soft-seat or balanced bellows configurations. • Full compliance with ASME boiler and Pressure Vessel Code Section VIII and API Standards 526 and 527. * Patented These design improvements and material upgrades, combined with state-of-the-art manufacturing facilities, result in lower cost of ownership to end users and enhanced product availability from Crosby factories as well as Crosby’s extensive network of pressure management centersSM .
Tyco reserves the right to change the contents without notice page 2
Valve Styles JOS-E JBS-E JBS-BP-E JOS-H-E JLT-JOS-E JLT-JBS-E JLT-JBS-BP-E
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JOS-E and JBS-E product features Bellows and top flange Crosby Styles JBS-E and JLT-JBS-E balanced bellows pressure relief valves provide optimum valve performance when the developed back pressure in exhaust systems or discharge manifolds becomes excessive. All standard JBS-E and JLT-JBS-E relief valves feature a standard bellows and top flange (Figure 1) manufactured from Inconel alloy 625 which is a fatigue-resistant material and provides improved corrosion resistance compared to 316L stainless steel bellows. Inconel® alloy 625 is highly resistant to pitting, crevice corrosion and intergranular attack. The standardization of Inconel® Alloy 625 bellows and top flange provides a higher degree of corrosion resistance without the premium extra charge usually associated with Inconel® bellows.
Figure 1
Ease of maintenance and component interchangeability The disc insert retention, disc holder and nozzle ring of the JOS-E and JBS-E have been reengineered to improve maintenance, minimize spare parts and provide more component part interchangeability. (Figure 2) The disc insert is inserted into the disc holder with a retention clip which is compressed as it passes through the smallest diameter in the disc holder recess and then returns to its normal shape once it has passed through. With the retention clip in its original shape, the disc insert is held securely in place. A “universal” disc holder allows for simple and cost effective conversions from conventional to balanced bellows design as well as cost-effective bellows replacement. The bellows threads on to the disc holder with a tailpiece and gasket. The new nozzle ring encloses the adjustment slot at the bottom of the ring giving a more rugged, durable design. Chrome steel spring Standard chrome steel spring material for applications with inlet temperatures up to 650°F [343°C]. Dual Certification Crosby patented Style JLT (Figure 3) pressure relief valves offer a significant increase in capacity at 10% overpressure resulting in the economic use of a smaller valve as well as a reduction in inlet and discharge piping costs. The JLT trim is a field-proven patented design providing stable, nonchattering operation for liquid service. The JLT design is also capacity certified on gas and vapor service and can be applied in twophase flow applications. The JLT design is a logical choice for applications where the process fluid may be a liquid or a gas depending on the overpressure condition.
Figure 2
Figure 3
Bellows Convertibility The Crosby flanged, spring operated pressure relief valve is designed and manufactured as a conventional valve and a balanced bellows valve. The conversion from conventional Styles JOS-E or JLT-JOS-E in 1 D 2 through 8 T2 10 requires only the addition of a bellows assembly and bellows tail-piece gasket. No other parts are necessary since all other parts are completely interchangeable. Seat Design Styles JOS-E and JBS-E relief valves are available with flat metal-to-metal seats or soft seats. The JOS-E and JBS-E two-piece disc holder/disc insert construction provides thermal balancing assuring maximum seat tightness, and meets the requirements of API Standard 527, Seat Tightness of Pressure Relief Valves. Where system operating conditions permit, soft seat or elastomer seat construction is available as an option. The Crosby O-ring soft seat (Figure 4) is a two-seat design, with a metal-to-metal seat located downstream of the soft seat. The O-ring is the primary seal. The secondary flat metal-tometal seat controls the compression of the O-ring and also serves as a secondary seal should the O-ring be damaged. Standard O-ring materials include Viton®1, BUNA-N, EPR2, TFE3, Silicone Rubber and Kalrez4. Pressure and temperature limits of each material are shown on page 11. Other soft seat materials such as Chemraz5 and Aflas6 are available on application. Cap, Lifting Lever and Spindle Interchangeability All Crosby JOS-E and JBS-E relief valves use a threaded spindle and drilled and tapped bonnet which permits easy cap or lifting lever conversions, with maximum standardization and interchangeability of parts. In addition, standard cap and lifting lever designs can be used with inline test devices.
Figure 4
Notes 1. Reg. U.S. Patent Office for DuPont’s fluoroelastomer. 2. EPR = Ethylene Propylene Rubber. 3. TFE = Tetrafluoroethylene. 4. Reg. U.S. Patent Office for DuPont’s perfluoroelastomer parts. 5. Registered Trademark of Greene, Tweed & Co. 6. Registered Trademark of Asahi Glass Company, Ltd.
Tyco reserves the right to change the contents without notice
page 3
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JOS-E and JLT-JOS-E conventional pressure relief valves
Crosby Styles JOS-E and JLT-JOS-E are the standard conventional relief valve designs for applications when the discharge is to the atmosphere or when the discharge is to a low pressure exhaust system designed to contain the process fluid. Valves subject to flashing fluids may require a balanced bellows type valve (see page 6). This exceptionally rugged design features a high guiding surface ratio, corrosion resistant trim, upgraded materials of construction and several other design improvements to ensure ease of maintenance as well as a greater degree of parts interchangeability. For liquid service applications, Style JLT-JOS-E relief valves provide stable operating performance using the widely industry recognized liquid trim design patented by Crosby. The disc holder in the liquid trim design has been engineered to allow the valve to achieve full lift at 10% overpressure without valve chatter.
Styles JOS-E and JLT-JOS-E standard materials of construction
Ref. No. 1 1 2 3 4 5 8 9 12 11 10 15 16 17 18 18 19 20 20 21 22 24 25 26 27 28 34 35 36 40 41 Part Name Body (JOS-E and JLT-JOS-E ( )5 and ( )6) Body (JOS-E and JLT-JOS-E ( )7) Nozzle Nozzle Ring Set Screw Disc Holder Disc Insert1 Retention Clip2 Retainer Screws O-ring Retainer O-ring1 Guide Spindle Spindle Cotter Pin Spring (JOS-E and JLT-JOS-E ( )5) Spring (JOS-E and JLT-JOS-E ( )6 and ( ) 7) Spring Washers Bonnet (JOS-E and JLT-JOS-E ( )5 and ( )6) Bonnet (JOS-E and JLT-JOS-E ( )7) Bonnet Stud Bonnet Stud Nut Adjusting Bolt Adjusting Bolt Nut Pipe Plug (Bonnet) Set Screw Gasket1 Guide Gasket1 Seal and Wire Seal Clip (Not Shown) Nameplate (Not Shown) Threaded Cap Cap Gasket1 Standard Material ASME SA216 GR. WCB ASME SA217 GR. WC6 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel 316L Stainless Steel 316 Stainless Steel Inconel® X750 316 Stainless Steel 316 Stainless Steel Specify ASTM A297 GR. HE SST 416 Stainless Steel Stainless Steel Chrome Steel3 Alloy Steel 3,4 Carbon Steel ASME SA216 GR. WCB ASME SA217 GR. WC6 ASME SA193 GR. B7 ASME SA194 CL 2H 316 Stainless Steel5 316 Stainless Steel Carbon Steel Organic Fiber Non-Asbestos Organic Fiber Non-Asbestos Lead and Stainless Steel Stainless Steel Stainless Steel Carbon Steel Organic Fiber Non-Asbestos
Notes 1. Recommended Spare Part. 2. Furnished with Disc Insert. 3. Corrosion resistant coating. 4. Crosby may upgrade to Inconel® X750. 5. Class 900#, 1500# and 2500# inlet ratings use 416 Stainless Steel.
Tyco reserves the right to change the contents without notice
page 4
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JOS-E and JLT-JOS-E conventional pressure relief valves
" # !"
"
"
'
Style JLT-JOS-E (with O-ring seat)
$
& ' $ % &
#
& # ! !" "
'
%
Style JOS-E (with metal-to-metal seat)
Tyco reserves the right to change the contents without notice
page 5
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JBS-E and JLT-JBS-E balanced bellows construction
Crosby Styles JBS-E and JLT-JBS-E are pressure relief valves incorporating a bellows which is balanced to minimize the effect of back pressure on the performance characteristics. The balanced bellows design offsets the effects of variable back pressure on valve set pressure. The balanced bellows valve can also handle applications involving high built-up back pressure. Additionally, the bellows serves to isolate the guide, spindle, spring and other parts contained in the bonnet chamber from corrosive fluids or media such as a highly viscous fluid or slurry which could render the relief valve inoperative. For liquid service applications, Crosby offers Style JLT-JBS-E relief valves. The standard bellows assembly of the Crosby Style JBS-E and JLT-JBS-E threads onto the disc holder with a bellows tailpiece and gasket. A welded bellows attachment is available as an option. The JBS-E and JLT-JBS-E bellows and bellows flange are supplied in Inconel 625 as standard material for improved durability, corrosion resistance and service life.
Styles JBS-E and JLT-JBS-E standard materials of construction
Ref. No. 1 1 2 3 4 5 6C 6B 6A 29 8 9 12 11 10 15 16 17 18 18 19 20 20 21 22 24 25 27 28 34 35 26 40 41 Part Name Body (JBS-E and JLT-JBS-E ( )5 and ( )6) Body (JBS-E and JLT-JBS-E ( )7) Nozzle Nozzle Ring Set Screw Disc Holder Bellows Flange1 Bellows1 Bellows Tailpiece1 Tailpiece Gasket2 Disc Insert2 Retention Clip3 Retainer Screws (see page 5) O-ring Retainer (see page 5) O-ring2 (see page 5) Guide Spindle Spindle Cotter Pin Spring (JBS-E and JLT-JBS-E ( )5) Spring (JBS-E and JLT-JBS-E ( )6 and ( )7) Spring Washers Bonnet (JBS-E and JLT-JBS-E ( )5 and ( )6) Bonnet (JBS-E and JLT-JBS-E ( )7) Bonnet Stud Bonnet Stud Nut Adjusting Bolt Adjusting Bolt Nut Set Screw Gasket1 Guide Gasket2 Seal and Wire Seal Clip (not shown) Nameplate (not shown) Threaded Cap Cap Gasket2 Standard Material ASME SA216 GR. WCB ASME SA217 GR. WC6 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel 316L Stainless Steel Inconel® 625 Inconel® 625 316L Stainless Steel Organic Fiber Non-Asbestos 316 Stainless Steel Inconel® X750 316 Stainless Steel 316 Stainless Steel Specify ASTM A297 GR. HE SST 416 Stainless Steel Stainless Steel Chrome Steel4 Alloy Steel4,5 Carbon Steel ASME SA216 GR. WCB ASME SA217 GR. WC6 ASME SA193 GR. B7 ASME SA194 CL 2H 316 Stainless Steel6 316 Stainless Steel Organic Fiber Non-Asbestos Organic Fiber Non-Asbestos Lead and Stainless Steel Stainless Steel Stainless Steel Carbon Steel Organic Fiber Non-Asbestos
Notes 1. Subassembly. 2. Recommended Spare Part. 3. Furnished with Disc Insert. 4. Corrosion resistant coating. 5. Crosby may upgrade to Inconel® X750. 6. Class 900#, 1500# and 2500# inlet ratings use 416 Stainless Steel.
Tyco reserves the right to change the contents without notice
page 6
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JBS-E and JLT-JBS-E balanced bellows construction
"
" # !" "
'
& '
Note This vent must remain open on JBS-E and JLT-JBS-E construction
$ % &
# $+ $* $) & # ! !" "
'
'
%
Style JBS-E (with metal-to-metal seat)
Tyco reserves the right to change the contents without notice
page 7
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JOS-E and JLT-JOS-E Conventional pressure relief valves for sour gas service per NACE MR0175 Level 1 For applications where compliance with NACE MR0175 is required for wetted parts in the primary (upstream) pressure zone of the pressure relief valve. Materials of construction for Level 1 can be found on page 4 and 5. Level 2 For applications where compliance with NACE MR0175 is required for wetted parts in the primary (upstream) and secondary (downstream) pressure zones of the pressure relief valve. While the materials recommended for the Crosby Style JOS-E and JLT-JOS-E sour gas valves are suitable for average service conditions, optional materials are available to provide additional resistance to corrosion beyond the minimum requirements of the standard.
"
Material specification
Ref No. 1 2 3 4 5 8 9 15 16 17 18 19 20 21 22 24 25 26 27 28 34 35 40 41 Part Name Body Nozzle Nozzle Ring Set Screw Disc Holder Disc Insert Retention Clip Guide Spindle Spindle Cotter Pin Spring Spring Washer Bonnet Bonnet Stud Bonnet Stud Nut Adjusting Bolt Adjusting Bolt Nut Pipe Plug (Bonnet) Set Screw Gasket Guide Gasket Seal and Wire Seal Clip (not shown) Threaded Cap Cap Gasket Standard NACE Material Level 2 ASME SA216 GR WCB 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel 316L Stainless Steel 316 Stainless Steel Inconel® X750 ASTM A297 GR. HE SST 316 Stainless Steel Stainless Steel Inconel® X750 316 Stainless Steel ASME SA216 GR WCB Alloy Steel1 Alloy Steel1 316 Stainless Steel 316 Stainless Steel Carbon Steel Organic Fiber Non-Asbestos Organic Fiber Non-Asbestos Lead and Stainless Steel Stainless Steel Carbon Steel Organic Fiber Non-Asbestos
" # !" ' "
& ' #
$
$ % & '
!"
& # ! " %
Bold materials indicate variation from standard product.
Style JOS-E
Notes 1. If Class I or II bolting is required, bonnet studs will be ASME A193 Gr B7M HRC-22 maximum and bonnet stud nuts will be ASME A194 Class 2HM HRC-22 maximum.
Tyco reserves the right to change the contents without notice
page 8
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JBS-E and JLT-JBS-E Balanced bellows pressure relief valves for sour gas service per NACE MR0175 Level 1 For applications where compliance with NACE MR0175 is required for wetted parts in the primary (upstream) pressure zone of the pressure relief valve. Materials of construction for Level 1 can be found on page 6 and 7. Level 2 For applications where compliance with NACE MR0175 is required for wetted parts in the primary (upstream) and secondary (downstream) pressure zones of the pressure relief valve. The Inconel® 625 bellows isolates the valve spring and other critical components above it from the process fluid. While the materials recommended for the Crosby Style JBS-E and JLT-JBS-E sour gas valves are suitable for average service conditions, optional materials are available to provide additional resistance to corrosion beyond the minimum requirements of the standard. Material specification
" " # !" ' "
Ref No. 1 2 3 4 6C 6B 6A 29 5 8 9 15 16 17 18 19 20 21 22 24 25 27 28 34 35 40 41
Part Name Body Nozzle Nozzle Ring Set Screw Bellows Flange1 Bellows1 Bellows Tailpiece1 Tailpiece Gasket Disc Holder Disc Insert Retention Clip Guide Spindle Spindle Cotter Pin Spring Spring Washer Bonnet Bonnet Stud Bonnet Stud Nut Adjusting Bolt Adjusting Bolt Nut Set Screw Gasket Guide Gasket Seal and Wire Seal Clip (not shown) Threaded Cap Cap Gasket
Standard NACE Material Level 2 ASME SA216 GR. WCB 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel Inconel® 625 Inconel® 625 316L Stainless Steel Organic Fiber Non-Asbestos 316L Stainless Steel 316 Stainless Steel Inconel® X750 ASTM A297 GR. HE SST 416 Stainless Steel Stainless Steel Chrome Steel-Aluminum Metallized Steel ASME SA216 GR. WCB Alloy Steel2 Steel2 316 Stainless Steel3 316 Stainless Steel Organic Fiber Non-Asbestos Organic Fiber Non-Asbestos Lead and Stainless Steel Stainless Steel Carbon Steel Organic Fiber Non-Asbestos
& ' # $+ $* $) & # ! "
$ % &
' '
!"
%
Style JBS-E (with bellows)
Bold materials indicate variation from standard product.
Notes 1. Subassembly. 2. If Class I or II bolting is required, bonnet studs will be ASME A193 Gr B7M HRC-22 maximum and bonnet stud nuts will be ASME A194 Class 2HM HRC-22 maximum. 3. Class 900#, 1500# and 2500# inlet ratings use 416 Stainless Steel.
Tyco reserves the right to change the contents without notice
page 9
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Caps and lifting levers
Cap
Dog shaft Packing gland sleeve Packing gland nut Packing
Lever nut Lever nut lockwasher Lever Packing gland Dog shaft gasket
Spindle Cap
Seal and wire Threaded Cap Type A
Cap plug Cap gasket
Test rod
Type J (standard)
Cap plug gasket
Cap or cap top
Packed lifting lever Type D (Top view of packing gland construction used for special materials)
Spindle
Lever nut Cap test rod Cap Cap Type Type Type Type Type B E H K M Threaded cap Packed lifting lever Bolted cap Threaded cap (standard) Bolted cap (standard) Lockwasher Dog shaft bearing Gasket
Lever
Spindle Cap stud nut
Dog shaft O-ring Cap Dog
Cap stud
Bolted Cap Type G Type L (standard)
Seal and wire
Packed lifting lever Type D (Top view)
Valve spindle
Spindle nut
Cap Cap top Cotter pin Cap top gasket Dog Dog shaft
Forked lever Cotter pin
Cotter pin
Spindle nut Cap
Pin
Pin
Cap set screw Lever Regular lifting lever Type C
Cap stud Cap stud nut
Spindle Adjusting bolt Adjusting bolt nut Seal and wire Packed lifting lever Type D
Tyco reserves the right to change the contents without notice
page 10
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
O-Ring soft seat materials and pressure/temperature limits
500
260
Kalrez ® (80)
Kalrez ® (90) TFE
TFE
400
204
Viton ® (75)
300
Kalrez ® (80) Silicone (50)
Kalrez ® (80) Silicone (80) Viton ® (75) TFE
Kalrez ® (90) Viton ® (90) TFE
200
93
100
BUNA-N (50) EPR (70)
BUNA-N (70) EPR (80) Kalrez ® (80) Silicone (70) Viton ® (75) TFE
BUNA-N (60) EPR (70) Silicone (50)
BUNA-N (90) EPR (90) Kalrez ® (90) Viton ® (90) TFE
50
0
-17
BUNA-N (70) EPR (70)
-50
Silicone (70) TFE
BUNA-N (90) EPR (90) TFE
Silicone (80) TFE
-45
TFE
-150 15 100 200 300 400 500 600 700 800 900
-101 1000 1200 1400
Set pressure, psig
Figures in ( ) are Durometer Hardness specifications
1480 or max. set pressure rating of the O-ring soft seat valve
Maximum set pressure limits
Maximum Set Pressure Orifice D E F G H J K L M N P Q R T T2 psig 1480 1480 1480 1480 1480 1480 1480 1000 1100 1000 1000 600 300 300 300 barg 102 102 102 102 102 102 102 68.9 75.8 68.9 68.9 41.3 20.6 20.6 20.6
Notes • EPR = Ethylene Propylene Rubber TFE = Tetrafluoroethylene • Other soft seat materials are available on request. For O-ring seats below -150°F [-101°C] consult Crosby. For steam service, metal-to-metal seats are recommended consult Crosby if soft seats are required.
JBS-E O-Ring Soft Seat
Tyco reserves the right to change the contents without notice
JLT-JOS-E O-Ring Soft Seat
page 11
Inlet temperature °C
Inlet temperature °F
Silicone (50) Viton ® (75)
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Crosby Styles JBS-E and JLT-JBS-E balanced bellows valves with supplementary back pressure balancing piston Styles JBS-BP-E and JLT-JBS-BP-E are a modification to the Crosby bellows pressure relief valve designed and tested in collaboration with engineers of one of the world’s leading petroleum companies. This adaptation provides additional assurance of safe performance in the event of bellows failure on installations having discharge manifold systems where back pressures (constant or variable) are present. The Crosby bellows pressure relief valve (Styles JBS-E and JLT-JBS-E) was especially developed for service under back pressure conditions. The balanced area bellows counteracts back pressure effects. However, in case of a broken or ruptured bellows, the valve would perform in the manner of a standard valve without bellows. Introduction of the Supplementary Back Pressure Balancing Piston guarantees full performance characteristics of the valve until necessary replacement of the bellows can be made. This design, illustrated on the right, thus affords double protection. Unless compensated for, the effects of back pressure may cause (1) a change in the opening pressure, (2) a decrease in valve capacity, and (3) valve performance to become unstable at higher back pressure. Use of the bellows valve with supplementary balancing piston maintains the balancing effect even after bellows failure and in such event would allow the valve to function in essentially the same manner as with the bellows intact. However, the bonnet of the valve must be vented in order to insure proper functioning of the valve. The vent also serves for a tell-tale in case of a ruptured or broken bellows.
Design The auxiliary balancing piston is incorporated in the basic bellows valve, modified to include the piston (5B) and the cylinder (17) which is part of the disc holder. The guiding clearances are held to a minimum and, in addition, grooves in the piston form a labyrinth seal to reduce flow between the piston and cylinder. Thus, in the event of a bellows failure, the leakage of fluid to atmosphere is kept to a minimum.
Styles JBS-BP-E and JLT-JBS-BP-E
Crosby BlockBody™ Pressure Relief Valves Crosby’s BlockBody Pressure Relief Valves provide the solution to applications involving very high set and back pressures that exceed standard ranges. One single Crosby BlockBody Pressure Relief Valve installation can handle the capacity of multiple API-526 standard valves with: • Fewer potential leak • Fewer spare parts required paths • Cost savings on inlet and outlet piping Design Details: • Full nozzle design for maximum tightness • Geometrically designed valve BlockBody and bonnet for weight savings • Interference fitted inlet studs provided • Available in orifice sizes from “D” through “T2” • Materials of construction available for special process applications • Available in Crosby Styles JOS-E, JBS-E and JLT-E valve designs For more details please refer to datasheet AGCDR-0043.
Tyco reserves the right to change the contents without notice
page 12
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Dimensions and Weights (carbon steel types only) Metric Units
Connection Size & Rating Inlet x Outlet 1"-150 x 2”-150” 1”-300 x 2”-150” * 1”-300 x 2”-150” 1”-600 x 2”-150” 1 1/2”-900 x 2”-300” 1 1/2”-1500 x 2”-300” 1 1/2”-2500 x 3”-300” 1 1/2”-150 x 2”-150” 1 1/2”-300 x 2”-150” * 1 1/2”-300 x 2”-150” 1 1/2”-600 x 2”-150” 1 1/2”- 900 x 3”-300” 1 1/2”-1500 x 3”-300” 1 1/2”- 2500 x 3”-300” 1 1/2”-150 x 3”-150” 1 1/2”-300 x 3”-150” * 1 1/2”-300 x 3”-150” 1 1/2”-600 x 3”-150” 1 1/2”-900 x 3”-300” 2”-1500 x 3”-300 “ 2”-2500 x 3”-300” 1 1/2”-150 x 3”-150” 1 1/2”-300 x 3”-150” * 2”-300 x 3”-150” 2”-600 x 3”-150” 2”-900 x 3”-150” 2”-1500 x 3”-300 “ 2”-150 x 3”-150” 2”-300 x 3”-150” * 3”-300 x 4”-150” 3”-600 x 4”-150” 3”-900 x 4”x 150” 3”-1500 x 4”-300” 3”-150 x 4”-150” 3”-300 x 4”-150” * 3”-300 x 4”-150” 3”-600 x 4”-150” 3”-900 x 6”x 150” 3”-1500 x 6”-300” 3”-150 x 4”-150” 3”-300 x 4”-150” * 4”-300 x 6”-150” 4”-600 x 6”-150” 4”-900 x 6”-150” 4”-1500 x 6”-300” 4”-150 x 6”-150” 4”-300 x 6”-150” * 4”-300 x 6”-150” 4”-600 x 6”-150” 4”-900 x 6”-150” 4”-150 x 6”-150” 4”-300 x 6”-150” * 4”-300 x 6”-150” 4”-600 x 6”-150” 4”-150 x 6”-150” 4”-300 x 6”-150” * 4”-300 x 6”-150” 4”-600 x 6”-150” 6”-150 x 8”-150” 6”-300 x 8”-150” * 6”-300 x 8”-150” 6”-600 x 8”-150” 6”-150 x 8”-150” 6”-300 x 8”-150” * 6”-300 x 10”-150” 6”-600 x 10”-150” 8”-150 x 10”-150” 8”-300 x 10”-150” * 8”-300 x 10”-150” 8”-300 x 10”-150” Dimensions mm F H 114,3 114,3 114,3 114,3 139,7 139,7 177,8 120,6 120,6 152,4 152,4 165,1 165,1 177,8 120,6 120,6 152,4 152,4 165,1 171,5 171,5 123,8 123,8 123,8 161,9 161,9 161,9 123,8 123,8 181 181 171,4 181 161,9 161,9 161,9 181 215,9 215,9 165,1 165,1 181 203,2 222,2 222,2 184,1 184,1 184,1 203,2 222,2 209,5 209,5 209,5 222,2 228,6 228,6 254 254 241,3 241,3 241,3 241,3 241 241 267 267 279,4 279,4 279,4 279,4 502 502 502 502 521 521 552 591 591 591 591 584 584 679 591 591 591 591 660 686 686 597 597 597 679 718 718 603 603 726 777 826 826 756 756 756 838 991 991 864 864 864 895 1010 1010 851 851 914 1067 1086 1099 1099 1099 1099 1080 1124 1181 1213 1213 1213 1213 1314 1353 1353 1353 1353 1511 1511 1511 1511 Approx. Weight kg 16 16 16 16 28 28 34 23 23 23 23 29 29 39 23 23 23 27 40 90 90 25 25 27 34 50 50 30 30 40 52 64 70 52 52 52 73 84 88 69 69 87 103 122 122 91 91 101 120 132 118 118 127 135 122 122 130 182 218 218 223 256 256 256 273 286 400 400 409 422
Orifice D,E
E 104,8 104,8 104,8 104,8 104,8 104,8 139,7 123,8 123,8 123,8 123,8 123,8 123,8 139,7 123,8 123,8 123,8 123,8 123,8 155,6 155,6 130,2 130,2 130,2 154 154 154 136,5 136,5 184,1 184,1 184,1 184,1 155,6 155,6 155,6 184,1 198,4 196,8 155,6 155,6 179,4 179,4 196,8 196,8 177,8 177,8 177,8 177,8 196,8 196,8 196,8 196,8 196,8 181 181 225,4 225,4 239,7 239,7 239,7 239,7 240 240 240 240 276,2 276,2 276,2 276,2
X 40 40 40 40 51 51 64 44 44 44 44 51 51 64 44 44 44 44 51 70 70 43 43 46 46 59 59 43 43 68 68 68 68 54 54 54 54 68 68 51 51 54 60 75 75 54 54 54 62 65 54 54 54 60 54 54 54 65 59 59 59 75 59 59 59 70 65 65 65 65
F
H
G
E X F Notes 1. Pressure and temperature ratings are per API-526. 2. Height shown “H” is for Standard Type J threaded Cap. 3. Pre 1995 API-526 2 1/2” Connections available for D, E, F, G and J orifice in place of current 3” size. * Lightweight CI 300 rating per API -526 (Cl 150 rated body).
H
J
K
L
M
N
P
Q
R
T
Tyco reserves the right to change the contents without notice
page 13
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Style designations
Size Inlet x Orifice x Outlet
1” D 2” thru 8” T2 10”5
Style
JOS-E Conventional JBS-E With bellows JLT-JOS-E Conventional with liquid trim1 JLT-JBS-E Bellows with liquid trim1 JBS-BP-E Bellows with back pressure balancing piston JLT-JBS-BP-E Bellows with liquid trim and back pressure balancing piston1 JOS-H-E Conventional JOS with open bonnet for ASME Code Section VIII steam service to +800°F [+427°C]2
Pressure/Temperature Inlet Flange Range Ratings3
1 - Cl 150 Flange 2 - Cl 300 Flange (A) 3 - Cl 300 Flange 4 - Cl 600 Flange (B) 5 - Cl 900 Flange 6 - Cl 1500 Flange 7 - Cl 2500 Flange Note (A) - Lightweight Cl.300 flange per API-526 2 - -450°F to -76°F [-268°C to -60°C] 4 - -75°F to -21°F [-59°C to -30°C] 5*- -20°F to +650F [-29°C to +343°C] 6 - +651°F to +800°F [+344°C to +427°C] 7 - +801°F to +1000°F [+428°C to +538°C]
Seat Type
None - Metal “OR” - O-Ring When ordering soft seats, specify material.
Material Variations4
None - Standard Materials S S4 - All 316 St. St. - All 316 St. St. except body, bonnet, cap and spring - All Monel with Monel or Inconel spring - Monel nozzle and disc insert - All Monel except body, bonnet, cap, spring and washers - All Monel except spring and washers - All Hastelloy C - Hastelloy C nozzle and disc insert - All Hastelloy C except body, bonnet, cap, spring and washers - All Hastelloy C except spring and washers - NACE Level 2
Caps and Lifting Levers (Type)
Type J - (Standard) threaded cap Type K - Threaded cap with test rod Type C - Regular lifting lever6 Type D - Packed lifting lever6 Type E - Packed lifting lever with test rod6 Type L - Bolted cap Type M - Bolted cap with test rod Optional Caps for Height Restricted Applications Type A - Threaded cap Type B - Threaded cap with test rod Type G - Bolted cap Type H - Bolted cap with test rod
M
M1 M4
* Except for Style JOS-H-E with open Note (B) - Except “T” orifice is Cl.300 bonnet, chrome steel spring may be used to flange +800°F [+427C°]
M5
H H1
H4
H5
N2
JOS-E = Inconel X750 spring, 316 St. St. washers, spindle and adjusting bolt JBS-E = Aluminum Metallized Spring
Available options • • • • • • • • • • • • • • • • • • • Welded bellows attachment Flange facings such as ring type joint Sour gas service materials and certifications Special Cl 300 outlets (where not standard) Special Teflon®* (FEP) bellows coating Special spring coatings or plating Block bodies Bonnet and cap inside painting or plastic coating Bug screens Special materials not cataloged Flanges to international standards Special flanges Stellited nozzle and disc insert Special casting or machined surface tests Special cleaning Special painting or coatings Special testing Steam jacketed bodies Supplementary loading
Notes 1. Style designations “JLT-JOS-E”, “JLT-JBSE”, or “JLT-JBS-BP-E” signify Styles JOS-E, JBS-E or JBS-BP-E with liquid trim for liquid service. 2. Upper temperature limit is +800°F [+427°C] for Style JOS-H-E open bonnet valve for ASME Code Section VIII steam service. 3. See pages 14 - 43 in Catalog 310 for appropriate maximum set pressures and temperatures. 4. See pages 12 - 13 in Catalog 310 for complete listings of materials of construction. 5. Larger sizes are available. Ask for Catalog No. 307. 6. ASME Code Section VIII rules require that pressure relief valves for water service over +140°F [+60°C], steam and air shall have a lifting device.
* Reg. U.S. Patent Office for DuPont’s fluorocarbon resins.
Tyco reserves the right to change the contents without notice page 14
Crosby style JOS-E and JBS-E spring loaded API-526 standard pressure relief valves
Introduction
Crosby® Styles JOS-E and JBS-E springloaded pressure relief valves have been engineered to provide high quality overpressure protection for air, gas, steam, vapor, liquid and two-phase applications in an exceptionally rugged, standardized design to the process and power industries. Standard sizes are 1 D 2 to 8 T2 10 with inlet flange ratings of ANSI Cl 150, 300, 600, 900, 1500 and 2500. Standard outlet flanges are ANSI Cl 150 or Cl 300 depending on valve size or rating. Inlet and outlet center-to-face dimensions conform to API Standard 526, Flanged Steel Pressure Relief Valves. Styles JOS-E and JBS-E pressure relief valves are manufactured in accordance with ASME Pressure Vessel Code, Section VIII and capacities are certified by the National Board of Boiler and Pressure Vessel Inspectors. All Crosby pressure relief valve castings and forgings are procured to ASME/ASTM material specifications and are available in a number of material combinations such as Monel®, Hastelloy® and stainless steel. In addition, Styles JOS-E and JBS-E relief valves offer a number of special material combinations such as Titanium, Duplex Stainless Steel and Inconel®, and are available on application. Dimensions of flanges conform to current ANSI Standards. All steel raised face flanges are spiral concentric serrated finish with 45 to 55 grooves per inch and a finish between 125 Ra and 200 Ra. Other flange facings, such as Ring Type Joint, are available on request. For information pertaining to sizing and selection, refer to the AGC SafetySize computer sizing program and Pressure Relief Valve Engineering Handbook (Technical Document No. TP-V300).
Technical Data
Sizes Orifices Inlet Ratings Temperature Range Pressure Range : : : : : 1” D 2” to 8” T2 10” 0.110 to 27.872 in2 [71 to 17981 mm2] ANSI Cl 150, 300, 600, 900, 1500, 2500 -450°F to +1000°F [-268°C to +538°C] JOS-E and JLT-JOS-E: 15 to 6000 psig [1.03 to 413.79 barg] JBS-E and JLT-JBS-E: 25 to 6000 psig [1.72 to 413.79 barg]
Notes
1. Monel® and Inconel® are registered trademarks of the International Nickel Company, Inc. 2. Hastelloy® is a registered trademark of Haynes International, Inc.
www.tycovalves-eu.com
Tyco reserves the right to change the content without notice
AGCDR-0053-EN-0403
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Style JOS-E
Extended service life, reduced cost of ownership superior application versatility • Improved, rugged nozzle ring design. • Improved disc insert retention for ease of maintenance. • Standard Inconel 625 bellows and flange material for superior corrosion resistance, longer service life and a wider range of applications. • Universal disc holder allows for simple and cost-effective conversions from conventional to balanced bellows design. • Standard threaded bellows design for ease of maintenance and conversion from conventional to balanced bellows design. • Improved corrosion resistance with standard 316 stainless steel adjusting bolt locknut and nozzle ring set screw materials. • Style JLT capacities certified on liquids and gas. • Improved parts interchangeability - regardless of top construction. • Field proven style JLT trim* for stable, non-chattering operation on liquid and gas service. • Standard chrome steel spring for -20°F to +650°F [-28°C to +343°C]. • Easily converted to any type cap or lifting lever construction, liquid trim, soft-seat or balanced bellows configurations. • Full compliance with ASME boiler and Pressure Vessel Code Section VIII and API Standards 526 and 527. * Patented These design improvements and material upgrades, combined with state-of-the-art manufacturing facilities, result in lower cost of ownership to end users and enhanced product availability from Crosby factories as well as Crosby’s extensive network of pressure management centersSM .
Tyco reserves the right to change the contents without notice page 2
Valve Styles JOS-E JBS-E JBS-BP-E JOS-H-E JLT-JOS-E JLT-JBS-E JLT-JBS-BP-E
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JOS-E and JBS-E product features Bellows and top flange Crosby Styles JBS-E and JLT-JBS-E balanced bellows pressure relief valves provide optimum valve performance when the developed back pressure in exhaust systems or discharge manifolds becomes excessive. All standard JBS-E and JLT-JBS-E relief valves feature a standard bellows and top flange (Figure 1) manufactured from Inconel alloy 625 which is a fatigue-resistant material and provides improved corrosion resistance compared to 316L stainless steel bellows. Inconel® alloy 625 is highly resistant to pitting, crevice corrosion and intergranular attack. The standardization of Inconel® Alloy 625 bellows and top flange provides a higher degree of corrosion resistance without the premium extra charge usually associated with Inconel® bellows.
Figure 1
Ease of maintenance and component interchangeability The disc insert retention, disc holder and nozzle ring of the JOS-E and JBS-E have been reengineered to improve maintenance, minimize spare parts and provide more component part interchangeability. (Figure 2) The disc insert is inserted into the disc holder with a retention clip which is compressed as it passes through the smallest diameter in the disc holder recess and then returns to its normal shape once it has passed through. With the retention clip in its original shape, the disc insert is held securely in place. A “universal” disc holder allows for simple and cost effective conversions from conventional to balanced bellows design as well as cost-effective bellows replacement. The bellows threads on to the disc holder with a tailpiece and gasket. The new nozzle ring encloses the adjustment slot at the bottom of the ring giving a more rugged, durable design. Chrome steel spring Standard chrome steel spring material for applications with inlet temperatures up to 650°F [343°C]. Dual Certification Crosby patented Style JLT (Figure 3) pressure relief valves offer a significant increase in capacity at 10% overpressure resulting in the economic use of a smaller valve as well as a reduction in inlet and discharge piping costs. The JLT trim is a field-proven patented design providing stable, nonchattering operation for liquid service. The JLT design is also capacity certified on gas and vapor service and can be applied in twophase flow applications. The JLT design is a logical choice for applications where the process fluid may be a liquid or a gas depending on the overpressure condition.
Figure 2
Figure 3
Bellows Convertibility The Crosby flanged, spring operated pressure relief valve is designed and manufactured as a conventional valve and a balanced bellows valve. The conversion from conventional Styles JOS-E or JLT-JOS-E in 1 D 2 through 8 T2 10 requires only the addition of a bellows assembly and bellows tail-piece gasket. No other parts are necessary since all other parts are completely interchangeable. Seat Design Styles JOS-E and JBS-E relief valves are available with flat metal-to-metal seats or soft seats. The JOS-E and JBS-E two-piece disc holder/disc insert construction provides thermal balancing assuring maximum seat tightness, and meets the requirements of API Standard 527, Seat Tightness of Pressure Relief Valves. Where system operating conditions permit, soft seat or elastomer seat construction is available as an option. The Crosby O-ring soft seat (Figure 4) is a two-seat design, with a metal-to-metal seat located downstream of the soft seat. The O-ring is the primary seal. The secondary flat metal-tometal seat controls the compression of the O-ring and also serves as a secondary seal should the O-ring be damaged. Standard O-ring materials include Viton®1, BUNA-N, EPR2, TFE3, Silicone Rubber and Kalrez4. Pressure and temperature limits of each material are shown on page 11. Other soft seat materials such as Chemraz5 and Aflas6 are available on application. Cap, Lifting Lever and Spindle Interchangeability All Crosby JOS-E and JBS-E relief valves use a threaded spindle and drilled and tapped bonnet which permits easy cap or lifting lever conversions, with maximum standardization and interchangeability of parts. In addition, standard cap and lifting lever designs can be used with inline test devices.
Figure 4
Notes 1. Reg. U.S. Patent Office for DuPont’s fluoroelastomer. 2. EPR = Ethylene Propylene Rubber. 3. TFE = Tetrafluoroethylene. 4. Reg. U.S. Patent Office for DuPont’s perfluoroelastomer parts. 5. Registered Trademark of Greene, Tweed & Co. 6. Registered Trademark of Asahi Glass Company, Ltd.
Tyco reserves the right to change the contents without notice
page 3
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JOS-E and JLT-JOS-E conventional pressure relief valves
Crosby Styles JOS-E and JLT-JOS-E are the standard conventional relief valve designs for applications when the discharge is to the atmosphere or when the discharge is to a low pressure exhaust system designed to contain the process fluid. Valves subject to flashing fluids may require a balanced bellows type valve (see page 6). This exceptionally rugged design features a high guiding surface ratio, corrosion resistant trim, upgraded materials of construction and several other design improvements to ensure ease of maintenance as well as a greater degree of parts interchangeability. For liquid service applications, Style JLT-JOS-E relief valves provide stable operating performance using the widely industry recognized liquid trim design patented by Crosby. The disc holder in the liquid trim design has been engineered to allow the valve to achieve full lift at 10% overpressure without valve chatter.
Styles JOS-E and JLT-JOS-E standard materials of construction
Ref. No. 1 1 2 3 4 5 8 9 12 11 10 15 16 17 18 18 19 20 20 21 22 24 25 26 27 28 34 35 36 40 41 Part Name Body (JOS-E and JLT-JOS-E ( )5 and ( )6) Body (JOS-E and JLT-JOS-E ( )7) Nozzle Nozzle Ring Set Screw Disc Holder Disc Insert1 Retention Clip2 Retainer Screws O-ring Retainer O-ring1 Guide Spindle Spindle Cotter Pin Spring (JOS-E and JLT-JOS-E ( )5) Spring (JOS-E and JLT-JOS-E ( )6 and ( ) 7) Spring Washers Bonnet (JOS-E and JLT-JOS-E ( )5 and ( )6) Bonnet (JOS-E and JLT-JOS-E ( )7) Bonnet Stud Bonnet Stud Nut Adjusting Bolt Adjusting Bolt Nut Pipe Plug (Bonnet) Set Screw Gasket1 Guide Gasket1 Seal and Wire Seal Clip (Not Shown) Nameplate (Not Shown) Threaded Cap Cap Gasket1 Standard Material ASME SA216 GR. WCB ASME SA217 GR. WC6 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel 316L Stainless Steel 316 Stainless Steel Inconel® X750 316 Stainless Steel 316 Stainless Steel Specify ASTM A297 GR. HE SST 416 Stainless Steel Stainless Steel Chrome Steel3 Alloy Steel 3,4 Carbon Steel ASME SA216 GR. WCB ASME SA217 GR. WC6 ASME SA193 GR. B7 ASME SA194 CL 2H 316 Stainless Steel5 316 Stainless Steel Carbon Steel Organic Fiber Non-Asbestos Organic Fiber Non-Asbestos Lead and Stainless Steel Stainless Steel Stainless Steel Carbon Steel Organic Fiber Non-Asbestos
Notes 1. Recommended Spare Part. 2. Furnished with Disc Insert. 3. Corrosion resistant coating. 4. Crosby may upgrade to Inconel® X750. 5. Class 900#, 1500# and 2500# inlet ratings use 416 Stainless Steel.
Tyco reserves the right to change the contents without notice
page 4
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JOS-E and JLT-JOS-E conventional pressure relief valves
" # !"
"
"
'
Style JLT-JOS-E (with O-ring seat)
$
& ' $ % &
#
& # ! !" "
'
%
Style JOS-E (with metal-to-metal seat)
Tyco reserves the right to change the contents without notice
page 5
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JBS-E and JLT-JBS-E balanced bellows construction
Crosby Styles JBS-E and JLT-JBS-E are pressure relief valves incorporating a bellows which is balanced to minimize the effect of back pressure on the performance characteristics. The balanced bellows design offsets the effects of variable back pressure on valve set pressure. The balanced bellows valve can also handle applications involving high built-up back pressure. Additionally, the bellows serves to isolate the guide, spindle, spring and other parts contained in the bonnet chamber from corrosive fluids or media such as a highly viscous fluid or slurry which could render the relief valve inoperative. For liquid service applications, Crosby offers Style JLT-JBS-E relief valves. The standard bellows assembly of the Crosby Style JBS-E and JLT-JBS-E threads onto the disc holder with a bellows tailpiece and gasket. A welded bellows attachment is available as an option. The JBS-E and JLT-JBS-E bellows and bellows flange are supplied in Inconel 625 as standard material for improved durability, corrosion resistance and service life.
Styles JBS-E and JLT-JBS-E standard materials of construction
Ref. No. 1 1 2 3 4 5 6C 6B 6A 29 8 9 12 11 10 15 16 17 18 18 19 20 20 21 22 24 25 27 28 34 35 26 40 41 Part Name Body (JBS-E and JLT-JBS-E ( )5 and ( )6) Body (JBS-E and JLT-JBS-E ( )7) Nozzle Nozzle Ring Set Screw Disc Holder Bellows Flange1 Bellows1 Bellows Tailpiece1 Tailpiece Gasket2 Disc Insert2 Retention Clip3 Retainer Screws (see page 5) O-ring Retainer (see page 5) O-ring2 (see page 5) Guide Spindle Spindle Cotter Pin Spring (JBS-E and JLT-JBS-E ( )5) Spring (JBS-E and JLT-JBS-E ( )6 and ( )7) Spring Washers Bonnet (JBS-E and JLT-JBS-E ( )5 and ( )6) Bonnet (JBS-E and JLT-JBS-E ( )7) Bonnet Stud Bonnet Stud Nut Adjusting Bolt Adjusting Bolt Nut Set Screw Gasket1 Guide Gasket2 Seal and Wire Seal Clip (not shown) Nameplate (not shown) Threaded Cap Cap Gasket2 Standard Material ASME SA216 GR. WCB ASME SA217 GR. WC6 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel 316L Stainless Steel Inconel® 625 Inconel® 625 316L Stainless Steel Organic Fiber Non-Asbestos 316 Stainless Steel Inconel® X750 316 Stainless Steel 316 Stainless Steel Specify ASTM A297 GR. HE SST 416 Stainless Steel Stainless Steel Chrome Steel4 Alloy Steel4,5 Carbon Steel ASME SA216 GR. WCB ASME SA217 GR. WC6 ASME SA193 GR. B7 ASME SA194 CL 2H 316 Stainless Steel6 316 Stainless Steel Organic Fiber Non-Asbestos Organic Fiber Non-Asbestos Lead and Stainless Steel Stainless Steel Stainless Steel Carbon Steel Organic Fiber Non-Asbestos
Notes 1. Subassembly. 2. Recommended Spare Part. 3. Furnished with Disc Insert. 4. Corrosion resistant coating. 5. Crosby may upgrade to Inconel® X750. 6. Class 900#, 1500# and 2500# inlet ratings use 416 Stainless Steel.
Tyco reserves the right to change the contents without notice
page 6
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JBS-E and JLT-JBS-E balanced bellows construction
"
" # !" "
'
& '
Note This vent must remain open on JBS-E and JLT-JBS-E construction
$ % &
# $+ $* $) & # ! !" "
'
'
%
Style JBS-E (with metal-to-metal seat)
Tyco reserves the right to change the contents without notice
page 7
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JOS-E and JLT-JOS-E Conventional pressure relief valves for sour gas service per NACE MR0175 Level 1 For applications where compliance with NACE MR0175 is required for wetted parts in the primary (upstream) pressure zone of the pressure relief valve. Materials of construction for Level 1 can be found on page 4 and 5. Level 2 For applications where compliance with NACE MR0175 is required for wetted parts in the primary (upstream) and secondary (downstream) pressure zones of the pressure relief valve. While the materials recommended for the Crosby Style JOS-E and JLT-JOS-E sour gas valves are suitable for average service conditions, optional materials are available to provide additional resistance to corrosion beyond the minimum requirements of the standard.
"
Material specification
Ref No. 1 2 3 4 5 8 9 15 16 17 18 19 20 21 22 24 25 26 27 28 34 35 40 41 Part Name Body Nozzle Nozzle Ring Set Screw Disc Holder Disc Insert Retention Clip Guide Spindle Spindle Cotter Pin Spring Spring Washer Bonnet Bonnet Stud Bonnet Stud Nut Adjusting Bolt Adjusting Bolt Nut Pipe Plug (Bonnet) Set Screw Gasket Guide Gasket Seal and Wire Seal Clip (not shown) Threaded Cap Cap Gasket Standard NACE Material Level 2 ASME SA216 GR WCB 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel 316L Stainless Steel 316 Stainless Steel Inconel® X750 ASTM A297 GR. HE SST 316 Stainless Steel Stainless Steel Inconel® X750 316 Stainless Steel ASME SA216 GR WCB Alloy Steel1 Alloy Steel1 316 Stainless Steel 316 Stainless Steel Carbon Steel Organic Fiber Non-Asbestos Organic Fiber Non-Asbestos Lead and Stainless Steel Stainless Steel Carbon Steel Organic Fiber Non-Asbestos
" # !" ' "
& ' #
$
$ % & '
!"
& # ! " %
Bold materials indicate variation from standard product.
Style JOS-E
Notes 1. If Class I or II bolting is required, bonnet studs will be ASME A193 Gr B7M HRC-22 maximum and bonnet stud nuts will be ASME A194 Class 2HM HRC-22 maximum.
Tyco reserves the right to change the contents without notice
page 8
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Styles JBS-E and JLT-JBS-E Balanced bellows pressure relief valves for sour gas service per NACE MR0175 Level 1 For applications where compliance with NACE MR0175 is required for wetted parts in the primary (upstream) pressure zone of the pressure relief valve. Materials of construction for Level 1 can be found on page 6 and 7. Level 2 For applications where compliance with NACE MR0175 is required for wetted parts in the primary (upstream) and secondary (downstream) pressure zones of the pressure relief valve. The Inconel® 625 bellows isolates the valve spring and other critical components above it from the process fluid. While the materials recommended for the Crosby Style JBS-E and JLT-JBS-E sour gas valves are suitable for average service conditions, optional materials are available to provide additional resistance to corrosion beyond the minimum requirements of the standard. Material specification
" " # !" ' "
Ref No. 1 2 3 4 6C 6B 6A 29 5 8 9 15 16 17 18 19 20 21 22 24 25 27 28 34 35 40 41
Part Name Body Nozzle Nozzle Ring Set Screw Bellows Flange1 Bellows1 Bellows Tailpiece1 Tailpiece Gasket Disc Holder Disc Insert Retention Clip Guide Spindle Spindle Cotter Pin Spring Spring Washer Bonnet Bonnet Stud Bonnet Stud Nut Adjusting Bolt Adjusting Bolt Nut Set Screw Gasket Guide Gasket Seal and Wire Seal Clip (not shown) Threaded Cap Cap Gasket
Standard NACE Material Level 2 ASME SA216 GR. WCB 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel Inconel® 625 Inconel® 625 316L Stainless Steel Organic Fiber Non-Asbestos 316L Stainless Steel 316 Stainless Steel Inconel® X750 ASTM A297 GR. HE SST 416 Stainless Steel Stainless Steel Chrome Steel-Aluminum Metallized Steel ASME SA216 GR. WCB Alloy Steel2 Steel2 316 Stainless Steel3 316 Stainless Steel Organic Fiber Non-Asbestos Organic Fiber Non-Asbestos Lead and Stainless Steel Stainless Steel Carbon Steel Organic Fiber Non-Asbestos
& ' # $+ $* $) & # ! "
$ % &
' '
!"
%
Style JBS-E (with bellows)
Bold materials indicate variation from standard product.
Notes 1. Subassembly. 2. If Class I or II bolting is required, bonnet studs will be ASME A193 Gr B7M HRC-22 maximum and bonnet stud nuts will be ASME A194 Class 2HM HRC-22 maximum. 3. Class 900#, 1500# and 2500# inlet ratings use 416 Stainless Steel.
Tyco reserves the right to change the contents without notice
page 9
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Caps and lifting levers
Cap
Dog shaft Packing gland sleeve Packing gland nut Packing
Lever nut Lever nut lockwasher Lever Packing gland Dog shaft gasket
Spindle Cap
Seal and wire Threaded Cap Type A
Cap plug Cap gasket
Test rod
Type J (standard)
Cap plug gasket
Cap or cap top
Packed lifting lever Type D (Top view of packing gland construction used for special materials)
Spindle
Lever nut Cap test rod Cap Cap Type Type Type Type Type B E H K M Threaded cap Packed lifting lever Bolted cap Threaded cap (standard) Bolted cap (standard) Lockwasher Dog shaft bearing Gasket
Lever
Spindle Cap stud nut
Dog shaft O-ring Cap Dog
Cap stud
Bolted Cap Type G Type L (standard)
Seal and wire
Packed lifting lever Type D (Top view)
Valve spindle
Spindle nut
Cap Cap top Cotter pin Cap top gasket Dog Dog shaft
Forked lever Cotter pin
Cotter pin
Spindle nut Cap
Pin
Pin
Cap set screw Lever Regular lifting lever Type C
Cap stud Cap stud nut
Spindle Adjusting bolt Adjusting bolt nut Seal and wire Packed lifting lever Type D
Tyco reserves the right to change the contents without notice
page 10
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
O-Ring soft seat materials and pressure/temperature limits
500
260
Kalrez ® (80)
Kalrez ® (90) TFE
TFE
400
204
Viton ® (75)
300
Kalrez ® (80) Silicone (50)
Kalrez ® (80) Silicone (80) Viton ® (75) TFE
Kalrez ® (90) Viton ® (90) TFE
200
93
100
BUNA-N (50) EPR (70)
BUNA-N (70) EPR (80) Kalrez ® (80) Silicone (70) Viton ® (75) TFE
BUNA-N (60) EPR (70) Silicone (50)
BUNA-N (90) EPR (90) Kalrez ® (90) Viton ® (90) TFE
50
0
-17
BUNA-N (70) EPR (70)
-50
Silicone (70) TFE
BUNA-N (90) EPR (90) TFE
Silicone (80) TFE
-45
TFE
-150 15 100 200 300 400 500 600 700 800 900
-101 1000 1200 1400
Set pressure, psig
Figures in ( ) are Durometer Hardness specifications
1480 or max. set pressure rating of the O-ring soft seat valve
Maximum set pressure limits
Maximum Set Pressure Orifice D E F G H J K L M N P Q R T T2 psig 1480 1480 1480 1480 1480 1480 1480 1000 1100 1000 1000 600 300 300 300 barg 102 102 102 102 102 102 102 68.9 75.8 68.9 68.9 41.3 20.6 20.6 20.6
Notes • EPR = Ethylene Propylene Rubber TFE = Tetrafluoroethylene • Other soft seat materials are available on request. For O-ring seats below -150°F [-101°C] consult Crosby. For steam service, metal-to-metal seats are recommended consult Crosby if soft seats are required.
JBS-E O-Ring Soft Seat
Tyco reserves the right to change the contents without notice
JLT-JOS-E O-Ring Soft Seat
page 11
Inlet temperature °C
Inlet temperature °F
Silicone (50) Viton ® (75)
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Crosby Styles JBS-E and JLT-JBS-E balanced bellows valves with supplementary back pressure balancing piston Styles JBS-BP-E and JLT-JBS-BP-E are a modification to the Crosby bellows pressure relief valve designed and tested in collaboration with engineers of one of the world’s leading petroleum companies. This adaptation provides additional assurance of safe performance in the event of bellows failure on installations having discharge manifold systems where back pressures (constant or variable) are present. The Crosby bellows pressure relief valve (Styles JBS-E and JLT-JBS-E) was especially developed for service under back pressure conditions. The balanced area bellows counteracts back pressure effects. However, in case of a broken or ruptured bellows, the valve would perform in the manner of a standard valve without bellows. Introduction of the Supplementary Back Pressure Balancing Piston guarantees full performance characteristics of the valve until necessary replacement of the bellows can be made. This design, illustrated on the right, thus affords double protection. Unless compensated for, the effects of back pressure may cause (1) a change in the opening pressure, (2) a decrease in valve capacity, and (3) valve performance to become unstable at higher back pressure. Use of the bellows valve with supplementary balancing piston maintains the balancing effect even after bellows failure and in such event would allow the valve to function in essentially the same manner as with the bellows intact. However, the bonnet of the valve must be vented in order to insure proper functioning of the valve. The vent also serves for a tell-tale in case of a ruptured or broken bellows.
Design The auxiliary balancing piston is incorporated in the basic bellows valve, modified to include the piston (5B) and the cylinder (17) which is part of the disc holder. The guiding clearances are held to a minimum and, in addition, grooves in the piston form a labyrinth seal to reduce flow between the piston and cylinder. Thus, in the event of a bellows failure, the leakage of fluid to atmosphere is kept to a minimum.
Styles JBS-BP-E and JLT-JBS-BP-E
Crosby BlockBody™ Pressure Relief Valves Crosby’s BlockBody Pressure Relief Valves provide the solution to applications involving very high set and back pressures that exceed standard ranges. One single Crosby BlockBody Pressure Relief Valve installation can handle the capacity of multiple API-526 standard valves with: • Fewer potential leak • Fewer spare parts required paths • Cost savings on inlet and outlet piping Design Details: • Full nozzle design for maximum tightness • Geometrically designed valve BlockBody and bonnet for weight savings • Interference fitted inlet studs provided • Available in orifice sizes from “D” through “T2” • Materials of construction available for special process applications • Available in Crosby Styles JOS-E, JBS-E and JLT-E valve designs For more details please refer to datasheet AGCDR-0043.
Tyco reserves the right to change the contents without notice
page 12
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Dimensions and Weights (carbon steel types only) Metric Units
Connection Size & Rating Inlet x Outlet 1"-150 x 2”-150” 1”-300 x 2”-150” * 1”-300 x 2”-150” 1”-600 x 2”-150” 1 1/2”-900 x 2”-300” 1 1/2”-1500 x 2”-300” 1 1/2”-2500 x 3”-300” 1 1/2”-150 x 2”-150” 1 1/2”-300 x 2”-150” * 1 1/2”-300 x 2”-150” 1 1/2”-600 x 2”-150” 1 1/2”- 900 x 3”-300” 1 1/2”-1500 x 3”-300” 1 1/2”- 2500 x 3”-300” 1 1/2”-150 x 3”-150” 1 1/2”-300 x 3”-150” * 1 1/2”-300 x 3”-150” 1 1/2”-600 x 3”-150” 1 1/2”-900 x 3”-300” 2”-1500 x 3”-300 “ 2”-2500 x 3”-300” 1 1/2”-150 x 3”-150” 1 1/2”-300 x 3”-150” * 2”-300 x 3”-150” 2”-600 x 3”-150” 2”-900 x 3”-150” 2”-1500 x 3”-300 “ 2”-150 x 3”-150” 2”-300 x 3”-150” * 3”-300 x 4”-150” 3”-600 x 4”-150” 3”-900 x 4”x 150” 3”-1500 x 4”-300” 3”-150 x 4”-150” 3”-300 x 4”-150” * 3”-300 x 4”-150” 3”-600 x 4”-150” 3”-900 x 6”x 150” 3”-1500 x 6”-300” 3”-150 x 4”-150” 3”-300 x 4”-150” * 4”-300 x 6”-150” 4”-600 x 6”-150” 4”-900 x 6”-150” 4”-1500 x 6”-300” 4”-150 x 6”-150” 4”-300 x 6”-150” * 4”-300 x 6”-150” 4”-600 x 6”-150” 4”-900 x 6”-150” 4”-150 x 6”-150” 4”-300 x 6”-150” * 4”-300 x 6”-150” 4”-600 x 6”-150” 4”-150 x 6”-150” 4”-300 x 6”-150” * 4”-300 x 6”-150” 4”-600 x 6”-150” 6”-150 x 8”-150” 6”-300 x 8”-150” * 6”-300 x 8”-150” 6”-600 x 8”-150” 6”-150 x 8”-150” 6”-300 x 8”-150” * 6”-300 x 10”-150” 6”-600 x 10”-150” 8”-150 x 10”-150” 8”-300 x 10”-150” * 8”-300 x 10”-150” 8”-300 x 10”-150” Dimensions mm F H 114,3 114,3 114,3 114,3 139,7 139,7 177,8 120,6 120,6 152,4 152,4 165,1 165,1 177,8 120,6 120,6 152,4 152,4 165,1 171,5 171,5 123,8 123,8 123,8 161,9 161,9 161,9 123,8 123,8 181 181 171,4 181 161,9 161,9 161,9 181 215,9 215,9 165,1 165,1 181 203,2 222,2 222,2 184,1 184,1 184,1 203,2 222,2 209,5 209,5 209,5 222,2 228,6 228,6 254 254 241,3 241,3 241,3 241,3 241 241 267 267 279,4 279,4 279,4 279,4 502 502 502 502 521 521 552 591 591 591 591 584 584 679 591 591 591 591 660 686 686 597 597 597 679 718 718 603 603 726 777 826 826 756 756 756 838 991 991 864 864 864 895 1010 1010 851 851 914 1067 1086 1099 1099 1099 1099 1080 1124 1181 1213 1213 1213 1213 1314 1353 1353 1353 1353 1511 1511 1511 1511 Approx. Weight kg 16 16 16 16 28 28 34 23 23 23 23 29 29 39 23 23 23 27 40 90 90 25 25 27 34 50 50 30 30 40 52 64 70 52 52 52 73 84 88 69 69 87 103 122 122 91 91 101 120 132 118 118 127 135 122 122 130 182 218 218 223 256 256 256 273 286 400 400 409 422
Orifice D,E
E 104,8 104,8 104,8 104,8 104,8 104,8 139,7 123,8 123,8 123,8 123,8 123,8 123,8 139,7 123,8 123,8 123,8 123,8 123,8 155,6 155,6 130,2 130,2 130,2 154 154 154 136,5 136,5 184,1 184,1 184,1 184,1 155,6 155,6 155,6 184,1 198,4 196,8 155,6 155,6 179,4 179,4 196,8 196,8 177,8 177,8 177,8 177,8 196,8 196,8 196,8 196,8 196,8 181 181 225,4 225,4 239,7 239,7 239,7 239,7 240 240 240 240 276,2 276,2 276,2 276,2
X 40 40 40 40 51 51 64 44 44 44 44 51 51 64 44 44 44 44 51 70 70 43 43 46 46 59 59 43 43 68 68 68 68 54 54 54 54 68 68 51 51 54 60 75 75 54 54 54 62 65 54 54 54 60 54 54 54 65 59 59 59 75 59 59 59 70 65 65 65 65
F
H
G
E X F Notes 1. Pressure and temperature ratings are per API-526. 2. Height shown “H” is for Standard Type J threaded Cap. 3. Pre 1995 API-526 2 1/2” Connections available for D, E, F, G and J orifice in place of current 3” size. * Lightweight CI 300 rating per API -526 (Cl 150 rated body).
H
J
K
L
M
N
P
Q
R
T
Tyco reserves the right to change the contents without notice
page 13
JOS-E, JBS-E,JLT-JOS-E, JLT-JBS-E Pressure Relief Valve
Style designations
Size Inlet x Orifice x Outlet
1” D 2” thru 8” T2 10”5
Style
JOS-E Conventional JBS-E With bellows JLT-JOS-E Conventional with liquid trim1 JLT-JBS-E Bellows with liquid trim1 JBS-BP-E Bellows with back pressure balancing piston JLT-JBS-BP-E Bellows with liquid trim and back pressure balancing piston1 JOS-H-E Conventional JOS with open bonnet for ASME Code Section VIII steam service to +800°F [+427°C]2
Pressure/Temperature Inlet Flange Range Ratings3
1 - Cl 150 Flange 2 - Cl 300 Flange (A) 3 - Cl 300 Flange 4 - Cl 600 Flange (B) 5 - Cl 900 Flange 6 - Cl 1500 Flange 7 - Cl 2500 Flange Note (A) - Lightweight Cl.300 flange per API-526 2 - -450°F to -76°F [-268°C to -60°C] 4 - -75°F to -21°F [-59°C to -30°C] 5*- -20°F to +650F [-29°C to +343°C] 6 - +651°F to +800°F [+344°C to +427°C] 7 - +801°F to +1000°F [+428°C to +538°C]
Seat Type
None - Metal “OR” - O-Ring When ordering soft seats, specify material.
Material Variations4
None - Standard Materials S S4 - All 316 St. St. - All 316 St. St. except body, bonnet, cap and spring - All Monel with Monel or Inconel spring - Monel nozzle and disc insert - All Monel except body, bonnet, cap, spring and washers - All Monel except spring and washers - All Hastelloy C - Hastelloy C nozzle and disc insert - All Hastelloy C except body, bonnet, cap, spring and washers - All Hastelloy C except spring and washers - NACE Level 2
Caps and Lifting Levers (Type)
Type J - (Standard) threaded cap Type K - Threaded cap with test rod Type C - Regular lifting lever6 Type D - Packed lifting lever6 Type E - Packed lifting lever with test rod6 Type L - Bolted cap Type M - Bolted cap with test rod Optional Caps for Height Restricted Applications Type A - Threaded cap Type B - Threaded cap with test rod Type G - Bolted cap Type H - Bolted cap with test rod
M
M1 M4
* Except for Style JOS-H-E with open Note (B) - Except “T” orifice is Cl.300 bonnet, chrome steel spring may be used to flange +800°F [+427C°]
M5
H H1
H4
H5
N2
JOS-E = Inconel X750 spring, 316 St. St. washers, spindle and adjusting bolt JBS-E = Aluminum Metallized Spring
Available options • • • • • • • • • • • • • • • • • • • Welded bellows attachment Flange facings such as ring type joint Sour gas service materials and certifications Special Cl 300 outlets (where not standard) Special Teflon®* (FEP) bellows coating Special spring coatings or plating Block bodies Bonnet and cap inside painting or plastic coating Bug screens Special materials not cataloged Flanges to international standards Special flanges Stellited nozzle and disc insert Special casting or machined surface tests Special cleaning Special painting or coatings Special testing Steam jacketed bodies Supplementary loading
Notes 1. Style designations “JLT-JOS-E”, “JLT-JBSE”, or “JLT-JBS-BP-E” signify Styles JOS-E, JBS-E or JBS-BP-E with liquid trim for liquid service. 2. Upper temperature limit is +800°F [+427°C] for Style JOS-H-E open bonnet valve for ASME Code Section VIII steam service. 3. See pages 14 - 43 in Catalog 310 for appropriate maximum set pressures and temperatures. 4. See pages 12 - 13 in Catalog 310 for complete listings of materials of construction. 5. Larger sizes are available. Ask for Catalog No. 307. 6. ASME Code Section VIII rules require that pressure relief valves for water service over +140°F [+60°C], steam and air shall have a lifting device.
* Reg. U.S. Patent Office for DuPont’s fluorocarbon resins.
Tyco reserves the right to change the contents without notice page 14
