Bleed Valves and Purge Valves

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1 Bleed Valves and Purge Valves Bleed Valves Pressures up to psig (689 bar) Temperatures up to 8 F ( C) 36 stainless steel, carbon steel, or alloy R- materials Purge Valves Pressures up to psig (7 bar) Temperatures up to 6 F (3 C) 36 stainless steel, brass, or carbon steel materials

2 Bleed Valves and Purge Valves Bleed Valves Swagelok bleed valves can be used on instrumentation devices such as multivalve manifolds or gage/root valves to vent signal line pressure to atmosphere before removal of an instrument or to assist in calibration of control devices. Compact for convenient installation Male NPT and SAE end connections Orifice of. in. (3. mm); flow coefficient (C v ) of. Back stop screw prevents accidental stem disassembly Vent tube directs excess liquid or gas from system lines Materials of Construction Component Material Grade/ASTM Specification Stem Chrome-plated 36 SS/A76 Alloy /B6 Body➀ 36 SS/A79 8 ➁ /A8 Alloy R-/B6 Back stop screw 36 SS Alloy R- Vent tube 36 SS/A69 Alloy /B6 Lubricant Nickel antiseize, hydrocarbon carrier ➀ Male SAE body has fluorocarbon FKM O-ring. ➁ Carbon steel bodies are plated with cadmium yellow dichromate for corrosion resistance. Pressure-Temperature Ratings ➀ ➀ Ratings based on all metal seals. Ratings limited to: F ( 8 C) min with steel. F (3 C) max with SAE end connections using fluorocarbon FKM O-rings. 9 psig (66 bar) max with 36 SS or steel and SAE end connections. 8 psig ( bar) max with alloy R- and SAE end connections. Testing Valve Body Materials 36 SS Steel Alloy R- Material 36 SS Steel Alloy R- Temperature, F ( C) Working Pressure, psig (bar) 6 ( 3) to (37) (93) 3 (8) () (3) (6) 6 (3) 6 (33) 7 (37) 7 (398) 8 (6) 8 () (689) 9 9 (6) 8 39 (78) 7 7 (3) 7 3 () 7 6 (93) 6 77 (66) 6 66 (8) 6 8 (6) 6 33 (36) 6 3 (9) 6 8 (9) (689) 9 (67) 8 86 (6) 8 (89) 8 3 (7) (689) 8 8 (66) 8 (67) 7 96 (8) 7 9 (7) 7 9 () Every Swagelok bleed valve is factory tested with nitrogen at psig (68.9 bar). Seats have a maximum allowable leak rate of. std cm 3 /min. Shell testing is performed to a requirement of no detectable leakage with a liquid leak detector. When installing a Swagelok bleed valve, position the vent tube to direct system fluid away from operating personnel. Always open bleed valves slowly. These valves contain no packing, so some fluid weepage will occur when the valves are opened. Operating personnel must protect themselves from exposure to system fluids. Dimensions 7/6 in. hex C A Outlet 3/6 (.7) OD tube stub B Chrome-plated stem threads and tip enhance valve life Dimensions, in inches (millimeters), are for reference only and are subject to change. Ordering Information.8 (.6) open Inlet End Connection Ordering Dimensions, in. (mm) Type Size Number A B C D Male NPT /8 in. / in. 3/8 in. / in. SS-BVM SS-BVM SS-BVM6 SS-BVM8.3 (3.).7 (37.3).9 (3.9).3 (6.). (.). (.) Male SAE➀ / in., 7/6- / in., 3/-6 SS-BVST SS-BVST8 Male ISO➁ / in. SS-BVMRT.3 (3.).7 (37.3).3 (3.).9 (3.9).3 (6.).9 (3.9) ➀ Adapts to SAE straight thread boss and MS6 boss. ➁ Reference specifications: ISO7/, BS, DIN-999, JIS B3. Select an ordering number. To order other valve body materials, replace SS in the ordering number with S for carbon steel or M for alloy R-. Example: S-BVM. D. (.). (.). (.).7 (9.).88 (.).69 (7.).63 (6.).7 (9.)

3 Bleed Valves and Purge Valves 3 Purge Valves Swagelok purge valves are manual bleed, vent, or drain valves. The knurled cap is permanently assembled to the valve body for safety. One-quarter turn with a wrench from finger-tight obtains leaktight closure on first make-up. Snugging with a wrench ensures closure to the rated pressure with subsequent make-ups. Compact for convenient installation NPT, SAE, Swagelok tube fitting, and tube adapter end connections Cap is crimped to valve body to prevent accidental disassembly Materials of Construction Component Material Grade/ASTM Specification Cap, body➀ 36 SS/A79 Brass 36/B6 Cadmium-plated L/A8 Poppet, ball➁ 36 SS/A76 Spring 3 SS/A33 Lubricant Molybdenum disulfide-based paste Pressure-Temperature Ratings ➀ ➀ Ratings limited to: F ( 8 C) min with steel. Valve Body Materials 36 SS Brass Steel ➀ Male SAE body has fluorocarbon FKM O-ring. ➁ 36 SS valves contain a poppet; brass and carbon steel valves contain a ball. ASME Class 66 N/A Material Group. N/A Material Name 36 SS Brass Steel Temperature, F ( C) Working Pressure, psig (bar) 6 ( 3) to (37) (6) (93) 3 (8) 3 (76) () (3) (6) 6 (3) (7) 37 (6) 3 (37) 3 (3) 97 () 8 (96) 7 (89) 6 (8) (7) 3 (6) 8 (9) 6 (79) () 8 () 7 (.9) 3 (6) 3 (6) 3 (6) 3 (6) 98 () F (3 C) max with SAE end connections using fluorocarbon FKM O-rings. When installing a Swagelok purge valve, position the vent hole to direct system fluid away from operating personnel. The vent hole rotates with the cap, changing the direction of discharge as the cap is turned. Always open purge valves slowly. These valves contain no packing, so some fluid weepage will occur when the valves are opened. Operating personnel must protect themselves from exposure to system fluids. Vent hole bleeds excess liquid or gas from system lines Dimensions Dimensions, in inches (millimeters), are for reference only and are subject to change. A.3 (6.) open B Inlet End Connection Ordering Dimensions, in. (mm) Type Size Number A Open B Female NPT /8 in. / in. 3/8 in. / in. SS-P-F SS-P-F SS-PF6 SS-PF8.6 (39.6).7 (.).8 (6.).98 (.3).3 (3.).7 (8.3).78 (9.8).97 (.6) /8 in. SS-P-M.6 (.).38 (9.7) Male / in. SS-P-M.8 (6.) NPT 3/8 in. SS-P-6M.8 (6.7).6 (.) / in. SS-PM8.9 (3.).7 (9.) Male SAE➀ / in., 7/6- / in., 3/-6 SS-PST SS-PST8.69 (.9).8 (6.).38 (9.7). (.) /8 in. / in. SS-P- SS-P-.8 (6.7).9 (9.3).9 (.).69 (7.) Swagelok 3/8 in. SS-P-6.3 (.6).7 (9.) tube fitting / in. SS-PS8.9 (.6).88 (.) 6 mm 8 mm SS-PS6MM SS-PS8MM.9 (9.3). (.8).69 (7.).7 (8.3) Tube adapter / in. 3/8 in. / in. SS-P-T SS-P-6T SS-PT8.87 (7.).9 (9.3). (.6).63 (6.).69 (7.).9 (3.) Dimensions shown with Swagelok nuts finger-tight, where applicable. ➀ Adapts to SAE straight thread boss and MS6 boss. Ordering Information Select an ordering number. To order other valve body materials, replace SS in the ordering number with B for brass or S for carbon steel. Example: B-P-F. SWAGELOK

4 Cleaning and Packaging Every Swagelok bleed valve and purge valve is cleaned and packaged in accordance with Swagelok Specification SC-. Options Bleed Valve in. (.8 mm) Purge Valve Handle To order a Swagelok bleed valve with 36 SS/ASTM A76 or A79 bar handle, add designator -SH as a suffix to the ordering number. Example: SS-BVM-SH. Barbed Vent Tube 3/6 in. (.7 mm) OD The barbed vent tube enables use of soft plastic or rubber tubing at the valve outlet. Tube material is 36 SS/ASTM A69. To order, add designator -C3 as a suffix to the ordering number. Example: SS-BVM-C3. PTFE Ball The Swagelok purge valve with PTFE ball provides leaktight shutoff with finger pressure and features a removable cap for easy ball replacement. Pressure Rating: psig at F (3.7 bar at 37 C) Temperature Rating: 3 F (76 C). To order a Swagelok purge valve with PTFE ball, add -TFE as a suffix to the ordering number. Example: SS-P-F-TFE. Safe Product Selection When selecting a product, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Caution: Do not mix or interchange parts with those of other manufacturers. SwagelokTM Swagelok Company Swagelok Company Printed in U.S.A., MI April, R3 MS--6

5 MS--98 Lift Check Valves Swagelok lift check valves limit reverse flow under pressures up to 6 psi (3 bar) and temperatures up to 9 F (8 C). Forward flow lifts the poppet, opening the valve. Reverse flow seats the poppet against the orifice, closing the valve. Lift check valves must be mounted horizontally, with bonnet nuts on top. Series Reverse flow coefficient less than. % of forward flow coefficient No springs or elastomers Rugged, all-metal construction Compact size Union bonnet design Metal-to-metal seal Materials of Construction Component Bonnet nut Bonnet Wetted parts shown in italics. ➀ Nickel-based lubricant. 3 Grade/ASTM Specification 36 stainless steel/a79 3 Poppet 7- PH ➀ stainless steel/a6 Body 36 stainless steel/a79 Flow Curves Air Inlet pressure, psig 8 6 Pressure drop, psi Flow rate, std ft 3/min Water.. 3 SERIES Flow rate, std L/min 6 SERIES SERIES Flow rate, L/min SERIES 6 SERIES Flow rate, U.S. gal/min 8 SERIES Inlet pressure, bar Pressure drop, bar

6 Technical Data Series Orifice in. (mm) Flow Coefficient 3.6 (.).3 6. (6.) (.). Pressure Rating at 7 F ( C) 6 psig (3 bar) Temperature Range -6 to 9 F (-3 to 8 C) Cleaning Every lift check valve is cleaned and packaged in accordance with Swagelok Specification SC-. Optional special cleaning and packaging in accordance with Swagelok Specification SC- is available. Testing Every lift check valve is factory tested for proper operation. SS-8S valve pressure rating is 8 psig (399 bar). For complete pressure-temperature ratings, see Swagelok Valve Pressure-Temperature Ratings, MS-6-8. Dimensions and Ordering Information C hex D E B A Special Alloy Materials Lift check valves with select Swagelok tube fitting or female NPT end connections are also available in titanium or alloys,, 6, or C-76. See Swagelok Special Alloy Fluid System Components, MS--. End Connections Ordering Type Size Number A B 3 series Swagelok tube fitting Female NPT Tube socket weld or pipe butt weld Swagelok tube fitting 6 mm SS-3S6MM.39 (6.7) /8 in. SS-3F. (.8) Female NPT / in. SS-6F Tube socket weld or pipe butt weld Swagelok tube fitting Female NPT Tube socket weld or pipe butt weld / in. SS-3S / in. SS-3F.6 (.3).9 (3.9) 3/8 in. SS-6S6.83 (7.9).3 (33.3) / in. SS-8S8 3.9 (99.3).8 (.) 3/ in. SS-8S 3.9 (99.6).9 (.6) Dimensions shown with Swagelok nuts finger-tight, where applicable. All dimensions are for reference only and are subject to change.. (.) / in. SS-3SWT.8 (6.).9 (.9) 3/8 in. SS-6SW6T / in. SS-6SW8T 3/8 in. SS-8F6 / in. SS-8F8. (6.) 6 series. (7.). (3.8) 8 series. (.7) 3. (79.).86 (7.) / in. SS-8SW8T 3.3 (79.).88 (7.8) Dimensions, in. (mm) C Hex Flat D E 7/8.7 (37.3).39 (9.9) /.8 (7.). (.7) /. (6.).6 (.7) Safe Product Selection When selecting a product, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Caution: Do not mix or interchange parts with those of other manufacturers. QUALITY ASSURED FIRM Certificate No. QSC 369 Swagelok TM Swagelok Company 7- PH TM Armco Inc. 989, 99, 99, 997, 999 Swagelok Company Printed in U.S.A., MI March, R3 MS--98

7 Check Valves C, CA, CH, CP, and CPA Series Working pressures up to 6 psig (3 bar) Adjustable and fixed cracking pressures Variety of end connections 36 stainless steel and brass materials

8 Check Valves Contents Features Pressure-Temperature Ratings Technical Data Cracking and Reseal Pressures Materials of Construction Flow Data Testing, Cleaning, and Packaging Ordering Information and Dimensions Special Applications Options and Accessories Maintenance Kits Features Fixed Cracking Pressures From /3 to psi (. to.7 bar) Adjustable Cracking Pressures From 3 to 6 psi (. to.3 bar) C Series CA Series Locking screw maintains settings O-ring seals body halves Poppet Poppet stop Fully contained O-ring seal Adjustable spring force Adjusting screw sets cracking pressure CH Series CPA Series Poppet with bonded elastomer seal Poppet stop Fully contained O-ring seal Adjustable spring Adjusting screw sets cracking pressure Locking screw maintains setting O-ring seals body halves Backup ring supports O-ring Compact, one-piece body CP Series Fully contained O-ring seal Compact, one-piece body

9 Check Valves 3 Technical Data Cracking pressurethe upstream pressure at which the first indication of flow occurs. Reseal pressurethe pressure at which there is no indication of flow. For valves not actuated for a period of time, initial cracking pressure may be higher than the set cracking pressure. Technical Data Series Maximum Flow Coefficient (C v ) Fixed Cracking Pressure C. C.7 6C.7 8C.68 C, 6C.8 CH.67 CH8.8 CH6.7 CP.3 8CP. Cracking Pressure psi (bar) /3,, and (.,.6,.68, and.7) /3,,, and (.,.6,.3.68, and.7) /3,, and (.,.6,.68, and.7) Downstream Pressure at 7 F ( C) psig (bar) (68) ➀ (3) 6 (3) (3) 3 (6) Adjustable Cracking Pressure CA CPA 8CPA to (. to 3.) to (3. to.3) to 3 (.3 to.) 3 to 6 (. to.3) 3 (6) ➀ For cracking pressure of psi (.68 bar), downstream pressure is 3 psig (6 bar). Pressure-Temperature Ratings C (C, C, 6C, and 8C), CA, CP, and CPA Series Ratings based on fluorocarbon FKM O-rings in 36 stainless steel valves and Buna N in brass valves. Material 36 SS Brass Temperature, F ( C) ( 3) to (37) (93) () 3 (8) 37 (9) Working Pressure, psig (bar) 3 (6) 7 (77) (68) 3 (6) 8 () 3 (6) 6 (79) (6) C Series (C and 6C) Ratings based on fluorocarbon FKM O-rings in 36 stainless steel valves and Buna N in brass valves. Material 36 SS Brass Temperature, F ( C) ( 3) to (37) (93) () 3 (8) 37 (9) Working Pressure, psig (bar) (37) 7 (8) 63 () (6) (99.9) (3) 3 (89.) (8.6) CH Series Ratings based on fluorocarbon FKM O-rings. Material Temperature, F ( C) ( 3) to (37) (93) () 3 (8) () 36 SS Series CH, CH8 CH6 Working Pressure, psig (bar) 6 (3) 6 (3) 9 (388) 66 (3) 8 (9) (3) ➀ 9 (9) 8 (8) 387 (67) 36 () For more information about pressure ratings of valves with tube fitting end connections, see Swagelok Tubing Data. ➀ Pressure ratings may be limited by the end connection. See Dimensions, page.

10 Check Valves Cracking and Reseal Pressures at 7 F ( C) Cracking pressurethe upstream pressure at which the first indication of flow occurs. Reseal pressurethe pressure at which there is no indication of flow. For valves not actuated for a period of time, initial cracking pressure may be higher than the set cracking pressure. C Series CH Series Nominal Cracking Pressure psi (bar) Cracking Pressure Range psi (bar) /3 (.) Up to 3 (.) (.6) Up to (.7) (.68) (.7) 7 to (.8 to.) to 3 (.3 to.) Reseal Pressure psi (bar) Up to 6 (.) downstream pressure Up to 6 (.) downstream pressure 3 (.) or more upstream pressure 7 (.) or more upstream pressure Nominal Cracking Pressure psi (bar) Cracking Pressure Range psi (bar) /3 (.) Up to 3 (.) (.6) (.3) (.68) (.7) Up to (.7) 3 to 9 (. to.6) 7 to (.8 to.) to 3 (.3 to.) Reseal Pressure psi (bar) Up to 6 (.) back pressure Up to (.3) back pressure Up to (.3) back pressure 3 (.) or more upstream pressure 7 (.) or more upstream pressure CP Series CA and CPA Series Nominal Cracking Pressure psi (bar) Cracking Pressure Range psi (bar) /3 (.) Up to 3 (.) (.6) Up to (.7) (.68) (.7) 7 to 3 (.8 to.89) to 9 (. to.9) Reseal Pressure psi (bar) 6 to (. to.3) downstream pressure to (.3 to.3) downstream pressure 3 to (. to.68) downstream pressure (.3) or more upstream pressure Reseal Pressure, psi Cracking Pressure, bar Back Pressure Cracking Pressure, psi Reseal Pressure, bar

11 Check Valves Materials of Construction C and CA Series Valve Body Materials 36 SS Brass Component Material Grade/ASTM Specification Inlet body Inlet gasket (CA series) Inlet gasket (6C and 8C with psi [3. bar] spring) 36 SS/A79 Brass 36/B6 PTFE-coated 36 SS/A67 PTFE-coated 36 SS/A 3 (C and 6C series) 3 Insert (CA series) PTFE-coated 36 SS/A PTFE-coated aluminum/ B9 36 SS/A79 Naval brass 8/B O-ring Poppet Fluorocarbon FKM Buna N 36 SS/A79 Brass 36/B6 6 6 Spring 3 SS/A Center body (CA series) Brass 36/B6 8 Adjusting screw (CA series) 9 Locking screw (CA series) 36 SS/A79 36 SS/A79 7 Outlet gasket (CA series) PTFE-coated 36 SS/A67 Outlet body Lubricant 36 SS/A79 Brass 36/B6 Silicone-based and molybdenum disulfide-based 8 9 Wetted components listed in italics. CH Series C Series shown Component Material Grade/ ASTM Specification Inlet body Indicator ring 36 SS/A79 7 CA Series 3 Poppet Poppet stop Fluorocarbon FKMbonded 36 SS/A79 36 SS/A 6 8 Spring 3 SS/A33 6 O-ring Fluorocarbon FKM 3 7 Backup ring PTFE/ D7 8 Outlet body 36 SS/A79 Lubricant Fluorocarbon-based Wetted components listed in italics.

12 6 Check Valves Materials of Construction CP Series 3 6 CPA Series Valve Body Materials Brass 36 SS CP 8CP CPA 8CPA Component Insert lock screw Insert Material Grade/ASTM Specification 36 SS/A79 Brass 8/B Brass 36/B6 Brass 8/B Brass 36/B6 3 O-ring Fluorocarbon FKM Buna N Poppet Spring 36 SS/A79 Brass 36/B6 3 SS/A33 6 Body ➀ Silicone-based lubricant. 7 Adjusting screw ➁ Molybdenum (CPA series) disulfide-based 36 dry SS/A79 film lubricant. ➂ Adjusting screw in brass 8CPA valve 8 Locking screw with (CPA series) or 3 psig spring is 36SS. Brass 36/B6 36 SS/A79 Brass 36 ➀ /B6 Lubricant Silicone-based and molybdenum disulfide-based dry film Wetted components listed in italics. ➀ Adjusting screw in valve with or 3 psi spring is 36 SS.

13 Check Valves 7 Flow Data at 7 F ( C) C Series Air Flow C, C Series 8 6 psi (.7 bar) psi (.68 bar) C Series psi (.6 bar) psi (.7 bar) psi (.68 bar) Nominal Cracking Pressures psi (.6 bar) C Series 6 3 Water Flow C, C Series Pressure Drop, psi psi (.68 bar) C Series psi (.7 bar) Water Flow, L/min psi (.6 bar) psi (.7 bar) psi (.68 bar).... Water Flow, U.S. gal/min Nominal Cracking Pressures C Series psi (.6 bar) 3 Pressure Drop, bar 6C, 8C Series Nominal Cracking Pressures 6C Series psi (.68 bar) psi (.6 bar) psi (.7 bar) spring psi (.7 bar) 6 8 psi (.6 bar) psi (.68 bar) 8C Series 3 6C, 8C Series Pressure Drop, psi 8 6 Nominal Cracking Pressures 6C Series 3 psi (.7 bar) spring psi (.68 bar) psi (.6 bar) Water Flow, L/min psi (.7 bar) psi (.68 bar) 3 Water Flow, U.S. gal/min 8C Series psi (.6 bar) 3 6 Pressure Drop, bar C, 6C Series Nominal Cracking Pressures C, 6C Series Water Flow, L/min 6 8 Nominal Cracking Pressures 6 psi (.68 bar) psi (.7 bar) spring psi (.6 bar) 3 Pressure Drop, psi 3 psi (.68 bar) psi (.7 bar) spring psi (.6 bar) Pressure Drop, bar 6 8 Water Flow, U.S. gal/min

14 8 Check Valves Flow Data at 7 F ( C) CA Series Air Flow Water Flow Nominal Cracking Pressures psi (. bar) psi (3. bar) psi (.3 bar) 3 psi (. bar) 3 Pressure Drop, psi Water Flow, L/min 6 6 Nominal Cracking Pressures 3 psi (. bar) 3 psi (.3 bar) psi (3. bar) 3 psi (. bar) 3 Pressure Drop, bar Water Flow, U.S. gal/min CH Series Air Flow CH Series Water Flow CH Series Water Flow, L/min 6 8 Nominal Cracking Pressures psi (.7 bar) psi (.6 bar) psi (.68 bar) Pressure Drop, psi Nominal Cracking Pressures 6 psi (.7 bar) psi (.68 bar) psi (.6 bar) 3 Pressure Drop, bar Water Flow, U.S. gal/min CH8 Series CH8 Series Water Flow, L/min psi (.68 bar) psi (.7 bar) psi (.6 bar) 6 3 Pressure Drop, psi 3 psi (.7 bar) psi (.68 bar) psi (.6 bar) Pressure Drop, bar Water Flow, U.S. gal/min 6

15 Check Valves 9 Flow Data at 7 F ( C) CH Series Air Flow Water Flow CH6 Series CH6 Series Water Flow, L/min Nominal Cracking Pressures 6 psi (.68 bar) psi (.7 bar) psi (.6 bar) 3 Pressure Drop, psi Nominal Cracking Pressures psi (.7 bar) psi (.68 bar) psi (.6 bar)..... Pressure Drop, bar 6 8 Water Flow, U.S. gal/min CP Series Air Flow Water Flow CP Series Nominal Cracking Pressures 7 psi (.6 bar) psi (.7 bar) psi (.68 bar) Pressure Drop, psi CP Series 8 6 Water Flow, L/min Nominal Cracking Pressures psi (.7 bar) psi (.68 bar) Pressure Drop, bar. psi (.6 bar).. 3 8CP Series Nominal Cracking Pressures 8 6 psi (.6 bar) psi (.7 bar) psi (.68 bar) Pressure Drop, psi 8CP Series Water Flow, U.S. gal/min Water Flow, L/min Nominal Cracking Pressures psi (.7 bar) psi (.68 bar) psi (.6 bar) Pressure Drop, bar Water Flow, U.S. gal/min. 6.

16 Check Valves Flow Data at 7 F ( C) CPA Series Air Flow CPA Series Nominal Cracking Pressures psi (. bar) psi (.3 bar) psi (3. bar) 3 psi (. bar) 3 Water Flow CPA Series Water Flow, L/min Pressure Drop, psi 6 6 Nominal Cracking Pressures 3 psi (. bar) 3 psi (.3 bar) psi (3. bar) 3 psi (. bar) 3 Pressure Drop, bar Water Flow, U.S. gal/min 8CPA Series Nominal Cracking Pressures psi (. bar) psi (.3 bar) psi (3. bar) 3 psi (. bar) CPA Series Water Flow, L/min Pressure Drop, psi Nominal Cracking Pressures 3 psi (. bar) 3 3 psi (.3 bar) psi (3. bar) 3 psi (. bar) 3 6 Water Flow, U.S. gal/min Pressure Drop, bar Testing Every C, CA, CH, CP, and CPA series check valve is factory tested for crack and reseal performance with a liquid leak detector. Check valves with fixed cracking pressures, C, CP, and CH series, are cycled six times prior to testing. Every valve is tested to ensure it seals within five seconds at the appropriate reseal pressure. Check valves with adjustable cracking pressures, CA and CPA series, are tested at two pressure points. Every valve is tested at a low pressure setting. The high pressure setting is tested on ten percent of each order. All valves must seal within five seconds at the appropriate reseal pressure. Cleaning and Packaging Every C, CA, and CH series check valve with VCR or VCO end connections is specially cleaned and packaged in accordance with Swagelok Specification SC-. All other C, CA, and CH series check valves, as well as every CP and CPA series check valve, is cleaned and packaged in accordance with Swagelok Specification SC-. Special cleaning and packaging in accordance with Specification SC- is available as an option.

17 Dimensions Check Valves C Series A B CA Series A B C C End Connections Basic Dimensions, in. (mm) Type Size Ordering Number Series A B Flat C Flat Basic ordering numbers specify stainless steel material. To order brass, replace SS with B in the basic ordering number. Example: B-C- Fixed Cracking Pressure, C Series /8 in. SS-C-.9 (.6) 7/6 C / in. SS-C-.3 (9.7) /8 9/6 Fractional 3/8 in. SS-6C- 3.7 (8.) /6 Swagelok 8C tube fitting / in. SS-8C- 3. (86.9) 7/8 7/8 3/ in. SS-C-.3 () / /8 6C in. SS-6C-.7 () 3/8 / Metric 6 mm SS-6C-MM C.36 (9.9) /8 () Swagelok mm SS-C-MM 3.3 (8.3) (9) tube fitting 8C 7/8 mm SS-C-MM 3. (86.9) () /8 in. SS-C-.89 (8.) /8 C / in. SS-C-. (.6) 3/ Female NPT 3/8 in. SS-6C-.98 (7.7) 7/8 8C / in. SS-8C- 3.8 (9.9) /6 3/ in. SS-C-.8 () / 6C in. SS-6C-.8 (3) /8 /8 in. SS-C-.7 (3.) C /8 / in. SS-C-.9 (3.) Male NPT 3/8 in. SS-6C-.78 (7.6) 8C / in. SS-8C- 3.6 (8.3) 7/8 3/ in. SS-C-.8 () / 6C in. SS-6C-. () /8 Male NPT to Swagelok tube fitting / in. SS-C- C. (6.) /8 9/6 / in. SS-C-VCR-. (6.) Male VCR / in. SS-8C-VCR- 8C 3.6 (9.) /6 fitting 3/ in. SS-C-VCR-.6 (8) 6C /8 in. SS-6C-VCR-.76 () Adjustable Cracking Pressure, CA Series / in. SS-CA- Swagelok tube fitting 6 mm SS-6CA-MM- 3.3 (8.) 8 mm SS-8CA-MM- 3.3 (8.3) Male NPT to Swagelok / in. SS-CA- CA 3. (79.) tube fitting Male VCR fitting / in. SS-CA-VCR- 3.9 (78.) /8 9/6 () (6) 9/6 Ordering Information C Series To order, add a cracking pressure designator to the basic ordering number. Cracking Pressure psi (bar) Designator /3 (.) /3 Example: SS-C-/3 CA Series (.6) (.68) (.7) To order, add a cracking pressure range designator to the basic ordering number. Cracking Pressure Range psi (bar) Designator 3 to (. to 3.) 3 to (3. to.3) to 3 (.3 to.) 3 to 6 (. to.3) Example: SS-CA-3 3 Check valves are designed for directional flow control only. Swagelok check valves should never be used as a code safety relief device. Dimensions, shown with Swagelok tube fitting nuts finger-tight, are for reference only and are subject to change.

18 Check Valves Dimensions CH Series A B Ordering Information To order, add a cracking pressure designator to the basic ordering number. Example: SS-CHS-/3 Check valves are designed for directional flow control only. Swagelok check valves should never be used as a code safety relief device. Cracking Pressure psi (bar) Designator /3 (.) /3 (.6) (.3) (.68) (.7) End Connection Pressure Rating Dimensions, in. (mm) Type Size at F (37 C) psig (bar) Basic Ordering Number Series A B Flat /8 in. SS-CHS-.7 (7.7) CH /6 / in. SS-CHS-.3 (6.7) Fractional 6 (3) 3/8 in. SS-CHS6.7 (69.9) Swagelok CH8 tube fitting / in. SS-CHS8-.96 (7.) 3/ in. (3) SS-CHS- 3. (89.) CH6 in. 7 (33) SS-CHS (98.6) /8 6 mm SS-CHS6MM- CH.3 (6.7) /6 8 mm SS-CHS8MM-.7 (68.6) 6 (3) Metric mm SS-CHSMM- CH8.8 (7.) Swagelok tube fitting mm SS-CHSMM-.96 (7.) mm SS-CHSMM- 3.8 (88.) (3) CH6 mm SS-CHSMM (98.6) /8 / in. 6 (3) SS-CHF- CH.3 (.) /6 3/8 in. (3) SS-CHF6-. (6.8) CH8 Female NPT / in. 6 (36) SS-CHF8-3.3 (77.) /6 3/ in. 3 (96) SS-CHF- 3.3 (8.) CH6 in. (8) SS-CHF (97.3) /8 /8 in. SS-CHM-.79 (.) CH /6 / in. SS-CHM-.7 (.) 6 (3) 3/8 in. SS-CHM6-.36 (9.9) Male NPT CH8 / in. SS-CHM8-.73 (69.3) 3/ in. SS-CHM- 3.9 (83.6) (3) CH6 in. SS-CHM (83.6) /8 / in. 6 (3) SS-CHFRT- CH.8 (7.9) /6 Female ISO ➀ / in. 6 (36) SS-CHF8RT- CH8 3.9 (83.6) /6 3/ in. 3 (96) SS-CH6FRT- 3. (9.) CH6 /8 in. (8) SS-CH6F6RT (97.3) Male ISO ➀ / in. SS-CHMRT- CH.7 (.) /6 6 (3) / in. SS-CHM8RT- CH8.73 (69.3) 3/ in. SS-CHMRT- 3.3 (8.) (3) CH6 /8 in. SS-CHM6RT (93.) Female SAE/ MS / in. 6 (36) SS-CHF8ST-.7 (69.6) CH8 Male SAE/MS / in. SS-CHM8ST-.8 (63.) / in. 6 (3) SS-CHVCO- CH.98 (.3) /6 / in. SS-CHVCO8- CH8.3 (9.7) Male VCO fitting 3/ in. SS-CHVCO- (3) CH6.9 (73.7) /8 in. SS-CHVCO6- / in. 6 (3) SS-CHVCR- CH.8 (7.9) /6 Male VCR fitting / in. 3 () SS-CHVCR8- CH8.73 (69.3) 3/ in. 3 (6) SS-CHVCR- CH (96.) /8 Dimensions, shown with Swagelok tube fitting nuts finger-tight, are for reference only and are subject to change. ➀ See specifications ISO 7/, BS, DIN-999, JIS B3.

19 3 Check Valves Dimensions CP and CPA Series A D End Connections Basic Ordering Dimensions, in. (mm) D Type Size Number Series A Flat Fixed Cracking Pressure, CP Series / in. SS-CP- CP. (6.) 3/ Female NPT / in. SS-8CP- 8CP 3.7 (9.) /6 Male NPT Female NPT to male NPT Male NPT to female NPT / in. / in. SS-CP- SS-8CP- CP 8CP.6 (.).8 (7.9) 9/6 7/8 / in. SS-CP6- CP.9 (8.) 3/ / in. SS-CP-.7 (.) 3/ / in. SS-8CP- 8CP.83 (7.9) /6 Female ISO ➀ / in. SS-CP-RT-. (6.) 3/ CP Male ISO ➀ / in. SS-CP-RT-.6 (.) 9/6 Adjustable Cracking Pressure, CPA Series Female NPT / in. SS-CPA-.98 (7.7) 3/ CPA / in. SS-CPA-.6 (.) 9/6 Male NPT / in. SS-8CPA- 8CPA.6 (6.) 7/8 Male ISO ➀ / in. SS-CPA-RT- CPA.6 (.) 9/6 / in. SS-8CPA-RT- 8CPA.6 (6.) 7/8 Dimensions are for reference only and are subject to change. ➀ See specifications ISO 7/, BS, DIN-999, and JIS B3. Ordering Information Basic ordering numbers specify stainless steel material. To order brass, replace SS with B in the basic ordering number. Example: B-CP- CP Series To order, add a cracking pressure designator to the basic ordering number. Cracking Pressure psi (bar) Designator /3 (.) /3 Example: SS-CP-/3 CPA Series (.6) (.68) (.7) To order, add a cracking pressure range designator to the basic ordering number. Cracking Pressure Range psi (bar) Designator 3 to (. to 3.) 3 to (3. to.3) to 3 (.3 to.) 3 to 6 (. to.3) Example: SS-CPA-3 3 Check valves are designed for directional flow control only. Swagelok check valves should never be used as a code safety relief device.

20 Options and Accessories Seal Materials (All Series) Fluorocarbon FKM O-rings are standard in 36 stainless steel valves; Buna N O-rings are standard in brass valves. Other elastomer seals (poppet bonding material and O-ring) are available. To order, insert the seal material designator into the valve ordering number. Seal Material Buna N Ethylene propylene Designator Temperature Rating F ( C) to ( 3 to ) Fluorocarbon FKM -VI to 37 ( 3 to 9) Neoprene -BU -EP -NE to 3 ( to 8) to ( to ) PTFE ➀ -TR to 3 ( to 76) ➀ PTFE requires high back pressure to seal leak-tight. Example: B-C-VI-/3 Silicone, Buna C, Kalrez and Aflas O-rings are available. Contact your independent Swagelok sales and service representative for details. Special Alloys (All Series) Springs of alloy or alloy C-76 are available in some sizes. Valve bodies of alloy R-, carbon steel, aluminum, or other alloys are available in some sizes. Contact your independent Swagelok sales and service representative for more information. Special Cleaning and Packaging (All Series) To order special cleaning and packaging in accordance with Swagelok Specification SC-, if it is not standard, add -SC to the ordering number. Example: SS-C-/3-SC PTFE-Coated Springs (C, CA, CP, and CPA Series) Springs with PTFE coating are available in some sizes. Contact your independent Swagelok sales and service representative for information. Sour Gas Valves (CH Series) CH series valves with Swagelok tube fitting end connections are available for sour gas service. Materials for wetted components are selected in accordance with NACE Specification MR7 for sulfide stress cracking-resistant materials. Technical Data Pressure Rating at 7 F ( C) CH and CH8 series: psig (3 bar) CH6 series: 7 psig (33 bar) Temperature Rating to 3 F ( to 8 C) Nominal Cracking Pressures /3,, and psi (.,.6, and.3 bar) End Connections /, 3/8, /, 3/, and in. Swagelok tube fittings Materials of Construction Body, poppetalloy R-/B6 Sealsethylene propylene Back-up ringptfe Springalloy X-7/AMS 699 All other materials and lubricant same as standard product. See Materials of Construction, page. Ordering Information To order, replace SS with M and insert -SG into the ordering number. Example: M-CHS-SG-/3 Deflector Cap (CP and CPA Series) A polyethylene deflector cap is available for CP and CPA series valves with male NPT end connections. The deflector cap deflects flow from direct contact with personnel and prevents atmospheric contaminants from entering the valve. The deflector cap screws easily onto the male NPT outlet end of the valve. Maximum rating is 3 psig at F (.6 bar at 37 C). To order, insert -DG for a green cap or -DR for a red cap into the ordering number. Example: SS-CPA-DR-3 Maintenance Kits Spring kits and seal kits are available for retrofit or maintenance. See Swagelok Check Valve Maintenance Kits. Safe Product Selection When selecting a product, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Caution: Do not mix or interchange parts with those of other manufacturers. VCR, VCO, SwagelokTM Swagelok Company AflasTM Asahi Glass Co., Ltd. KalrezTM DuPont Swagelok Company Printed in U.S.A., MI March, R MS--76

21 All-Welded Check Valves CW Series Features All-welded design provides reliable containment of system fluid. Up to psig (.3 bar) pressure is required to initiate forward flow. Up to psig (.3 bar) back pressure is required to reseal. 36L SS body offers enhanced material purity. Choice of standard or high-purity wetted surface finishes. Ultrahigh-purity processing in accordance with Swagelok Specification SC- is available. Tube butt weld, female VCR fitting, integral male VCR fitting, rotatable male VCR fitting, and Swagelok tube fitting end connections are available. Technical Data Nominal Cracking Pressure psi (bar) Maximum Back Pressure psig (bar) Maximum Pressure Drop psi (bar) Minimum Burst Pressure at 7 F ( C) psig (bar) Flow Coefficients (C v ) Less than (.3) Full pressure rating (.) (86). (/ in., 6 mm Swagelok tube fitting and tube butt weld ends).7 (/ and / in. VCR fittings, 3/8 and / in. tube butt weld ends) Materials of Construction Component Body Poppet 3 Guidance wafer Poppet stop 3 Material Grade/ASTM Specification 36L SS ➀ /A79 Fluorocarbon FKM ➁ -bonded 36 SS/A79 Alloy X-7/B637 36L SS/A All components are wetted. ➀ Bodies with tube butt weld ends are 36L VAR SS/A79. ➁ Aflas, Buna N, ethylene propylene, and neoprene also available; see Options. Pressure-Temperature Ratings Material Name Temperature F ( C) ( 3) to (37) (93) 3 (8) () Flow Data at 7 F ( C) Pressure Drop psi (bar) (.68) (3.) (6.8) 36L SS Working Pressure psig (bar) 3 (6) 3 (7) 7 (6) 6 () Air Flow std ft 3 /min (std L/min). C v.7 C v 6. (7) 7.9 () 6 () (9) 9 (8) 37 ()

22 Testing Every CW series check valve is inboard helium leak tested to a maximum leak rate of 9 std cm 3 /s at the envelope. Every CW series check valve is factory tested for crack and reseal performance. Cleaning and Packaging Every CW series check valve is specially cleaned and packaged in accordance with Swagelok Specification SC-. Special cleaning and packaging in accordance with Swagelok Ultrahigh-Purity Specification SC- is available as an option for valves with VCR fitting or tube butt weld end connections. Ordering Information and Dimensions Select an ordering number. Dimensions are for reference only and are subject to change. SWAGELOK SWAGELOK A Tube butt weld end A Swagelok tube fitting End Connections Type Tube butt weld Female VCR fitting Integral male VCR fitting Female to integral male VCR fitting Rotatable male VCR fitting Swagelok tube fitting B hex flat B hex flat Ordering Dimensions, in. (mm) Size Number A B / in. 6LV-CWBW 3/8 in. 6LV-CWBW6 / in. 6LV-CWBW8. (3.) 6 mm 6LV-CWBW6M 7/8 / in. 6L-CWFR / in. 6L-CWFR8.3 (6.7) / in. 6L-CWVR.8 (.7) / in. 6L-CWVR8.6 (.3) SWAGELOK / in. 6L-CWFR-VR. (3.8) / in. 6L-CWMR.87 (7.9) / in. 6L-CWS 6 mm 6L-CWS6M B hex flat A Female VCR fitting B hex flat SWAGELOK A Male VCR fitting.96 (9.8) 7/8 Options Seal Materials Fluorocarbon FKM is standard. For an optional seal material, add a designator to the ordering number. Seal Material Aflas Buna N Ethylene propylene Neoprene Example: 6LV-CWBW-AF Ultrahigh-Purity (UHP) Processing Swagelok Ultrahigh-Purity Specification SC- defines the UHP manufacturing process, including material, cleaning, assembly, and testing requirements for products with P finish. To order, add a surface finish designator as a suffix to the ordering number. Example: 6LV-CWBW-P Designator -AF -BU -EP -NE Roughness Average (R a ) µin. (µm) Surface Finish Designator (.) Standard (.3) P -P Swagelok Specification SC- SC- Dimensions are shown with Swagelok nuts finger-tight. Safe Product Selection When selecting a product, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Caution: Do not mix or interchange parts with those of other manufacturers. Swagelok, VCRTM Swagelok Company AflasTM Asahi Glass Swagelok Company Printed in U.S.A., MI April, R3 MS--89

23 Proportional Relief Valves R Series Liquid or gas service Set pressures from to 6 psig (.68 to 3 bar) / and / in. and 6 to mm end connections

24 Proportional Relief Valves Spring adjusts to provide desired set pressure Lock nut maintains cap position, ensuring set pressure adjustment Cap provides easy external set pressure adjustment Label identifies set pressure range Lock wire capability secures cap to maintain set pressure adjustment Quad seal eliminates leakage around stem during relief mode O-ring provides elastomer-to-metal seal for positive shutoff at seat. (Other series use bonded disc. See Materials of Construction) End connections include gageable Swagelok tube fittings and NPT or ISO pipe threads R3A series valve shown. Features High-Pressure Valves Service up to 6 psig (3 bar) Multiple springs for a selection of set pressure ranges / in. and 6 and 8 mm end connectionsr3a series / in. and mm end connectionsr series Low-Pressure Valves Service up to 3 psig (.6 bar) One spring for the full set pressure range / in. and 6 and 8 mm end connectionsrl3 series / in. and mm end connectionsr series Applications R series relief valves are proportional relief valves that open gradually as the pressure increases. Consequently, they do not have a capacity rating at a given pressure rise (accumulation), and they are not certified to ASME or any other codes. The system designer and user must determine applicable code requirements and whether R series relief valves are acceptable for use. Operation R series relief valves OPEN when system pressure reaches the set pressure and CLOSE when system pressure falls below the set pressure. High-pressure R3A and R seriesselect and install the spring that covers the required set pressure; apply the matching label to the cap. Low-pressure RL3 and RL seriesthe spring is already installed. To prepare for service: adjust the set pressure by turning the cap lock the cap in place with the lock nut secure with the lock wire.

25 Proportional Relief Valves Technical Data Pressure-Temperature Ratings Series R3A R RL3 and RL Working Pressure at 7 F ( C) 6 psig (3 bar) 6 psig (3 bar) 3 psig (.6 bar) Set Pressure ➀ to 6 psig (3. to 3 bar) to psig (3. to 3 bar) to psig (.68 to. bar) Outlet Pressure psig (3 bar) psig (7 bar) psig (. bar) Seal Material Temperature, F ( C) ( ) 3 ( 3) ( 3) ( 7) Fluorocarbon FKM Buna N Neoprene ( ) 6 6 ( ) (3) (3) 6 3 ( ) (3) 6 () (3) (6) (93) () 8 (38) 6 (3) 9 (338) 8 (38) 6 (3) 9 (338) 8 (38) 6 (3) 9 (338) 8 (38) 6 (3) 9 (338) Ethylene propylene Fluorocarbon FKM (3) Buna N Neoprene Working pressure, psig (bar) (3) (3) (3) Ethylene propylene Fluorocarbon FKM 3 (.6) Buna N 3 (.6) Neoprene 3 (.6) Ethylene propylene 3 (.6) 7 (3) 3 (8) 66 (3) ➀ The pressure-temperature ratings are based upon laboratory testing to ensure that the cracking pressure does not deviate by more than % from the initial room temperature set pressure. Set Pressure and Resealing Pressure Set pressure is the upstream pressure at which the first indication of flow occurs. Set pressure of each valve is repeatable within ± % at room temperature. Resealing pressure is the upstream pressure at which there is no indication of flow. Resealing pressure is always lower than set pressure. Series RL3, RL R3A, R Testing Set Pressure, psig (bar) Minimum Resealing Pressure as a Percentage of Set Pressure, % to (.68 to.3) 7 to (. to.) 9 to (6.8 to 3.7) 8 to (8. to 68.9) 8 Every R series proportional relief valve is tested for set and resealing performance. Back Pressure High-Pressure Valves (R3A and R Series) The effect of system back pressure is minimized by the design of these high-pressure valves. Low-Pressure Valves (RL3 and RL Series) System back pressure increases the set pressure of the valve. To compensate, multiply the back pressure by.8 and subtract the result from the desired set pressure. Use the result to preset the valve while back pressure is equal to atmospheric pressure. Example: Desired set pressure is psig. System back pressure is psig. Step. Multiply back pressure by.8. psig.8 = 3 psig. Step. Subtract result from desired set pressure. psig 3 psig = 88 psig. Step 3. Pre-set proportional relief valve to 88 psig. Cleaning and Packaging Every R series relief valve is cleaned and packaged in accordance with Swagelok Specification SC-. Special cleaning and packaging in accordance with Specification SC- is available as an option. 3

26 Proportional Relief Valves Materials of Construction RL3 only 6 3 RL3 and R3A R3A only RL only RL and R R only a Component Material Grade/ASTM Specification Plug Nickel-plated brass Cap ➀ 36 SS/A79 3 Label Polyester Lock nut Spring 6 Sleeve 7 Spring support 8 Bonnet ➀ 36 SS/A79 9 O-ring ➁ Fluorocarbon FKM Quad seal ➁ Retainer Stem ➂ 36 SS/A79 a Bonded stem ➂ 3 Bonded disc Seat Gasket RL3, R3A36 SS powdered metal; RL, R36 SS/A PH SS/ASM 678B 3 SS/A RL3, R3A36 SS powdered metal; RL, R36 SS/A76 6 Seat retainer ➀ 36 SS/A79 7 O-ring ➁ Fluorocarbon FKM 8 Insert ➀ 36 SS/A79 9 Body 36 SS/A8 Wetted components listed in italics. Lubricants: ➀ Molybdenum disulfide-based dry film. ➁ Silicone-based. ➂ Molybdenum disulfide-based paste. PTFE-coated fluorocarbon FKM RL3, R3A36 SS/A666 RL, R36 SS/A79 Fluorocarbon FKM-bonded 36 SS/A79 36 SS/A79 PTFE-coated 36 SS/A 3 9 RL3 R3A RL R

27 Proportional Relief Valves Flow Data at 7 F ( C) Air Flow RL3 and RL Series 3 3 Set Pressure psig (. bar) psig (.3 bar) psig (6.8 bar) psig (3. bar) RL3 RL 6 8 Water Flow RL3 and RL Series Pressure drop, psig Water Flow, L/min Set Pressure psig (. bar) psig (.3 bar) psig (6.8 bar) psig (3. bar) RL3 RL 6 8 Pressure drop, bar Water Flow, U.S. gal/min R3A and R Series 3 6 Set Pressure psig (378 bar) 6 8 psig (3 bar) R3A R3A and R Series Pressure drop, psig 6 3 Water Flow, L/min Set Pressure psig (378 bar) psig (3 bar) 3 psig ( bar) Water Flow, U.S. gal/min R3A 3 3 Pressure drop, bar 3 3 Set Pressure 3 psig ( bar) 6 psig (79 bar) psig (37 bar) R3A R psig (68.9 bar) Pressure drop, psig Water Flow, L/min Set Pressure 6 psig (79 bar) psig (37 bar) psig (68.9 bar) Water Flow, U.S. gal/min R3A R Pressure drop, bar 8 R3A R 8 Water Flow, L/min R3A R Set Pressure psig (37.8 bar) 3 psig (. bar) psig (3.7 bar) Pressure drop, psig Set Pressure psig (37.8 bar) 3 psig (. bar) psig (3.7 bar) Water Flow, U.S. gal/min 3 Pressure drop, bar

28 Proportional Relief Valves Dimensions Dimensions in inches and (millimeters) are for reference only, subject to change. D Inlet C.6 in. (. mm) lock wire hole A max Outlet.9 in. (. mm) lock wire hole B E max Low-Pressure Valves (RL3 and RL Series) End Connections Type Size Ordering Number A B C D E RL3 Series:. in. (3.6 mm) Fully Open Orifice Swagelok tube fittings / in. SS-RL3S 6 mm SS-RL3S6MM 8 mm SS-RL3S8MM Male NPT to Swagelok tube fitting / in. SS-RL3M-S Male NPT to female NPT / in. SS-RL3M-F Male ISO to female ISO ➀ / in. SS-RL3MF-RT Swagelok tube fittings Male NPT to Swagelok tube fitting Male NPT to female NPT.7 (68.6). (36.6).9 (3.).6 (.6).7 (9.7).3 (.9) RL Series:. in. (6. mm) Fully Open Orifice / in. SS-RLS8.7 (3.7) mm SS-RLSMM.83 (6.) / in. SS-RLM8S8 / in. SS-RLM8F8.9 ().3 (36.3) Dimensions, in. (mm).7 (3.7).3 (36.3). (.7). () 3.89 (98.8).8 (8).9 (). () H.9 ().37 (36) Inlet.6 in. (. mm) lock wire hole Outlet.9 in. (. mm) lock wire hole Valve with Manual Override Handle H max High-Pressure Valves (R3A and R Series) End Connections Dimensions, in. (mm) Type Size Ordering Number A B C D E R3A Series:. in. (3.6 mm) Fully Open Orifice / in. SS-R3A Swagelok tube. 6 mm SS-6R3A-MM. () fittings (36.6) 8 mm SS-8R3A-MM.6 (.6) Male NPT to Swagelok tube fitting Swagelok tube fittings Male NPT to Swagelok tube fitting Male NPT to female NPT / in. SS-R3A Male NPT to female NPT / in. SS-R3A Male ISO to female ISO ➀ / in. SS-R3A-RT R Series:. in. (6. mm) Fully Open Orifice / in. SS-RS8.7 (3.7) mm SS-RSMM.83 (6.) / in. SS-RM8S8 / in. SS-RM8F8.7 (68.6).9 ().9 (3.).3 (36.3) Dimensions shown with Swagelok nuts finger-tight. ➀ Reference specifications: ISO 7/, BS, DIN-999, JIS B3..7 (9.7).7 (3.7).3 (36.3).3 (.9). (.7) 3.89 (98.8).8 (8).9 (). () H.9 ().37 (36) 6

29 Proportional Relief Valves Ordering Information Low-Pressure Valves (RL3 and RL Series) Valve contains spring; set pressure must be adjusted. Select a valve ordering number. Spring Kits Spring kits include spring and installation instructions. Select a spring kit ordering number. Series RL3 RL Set Pressure Range psig (bar) Spring Kit Ordering Number 77-3K-RL3 77-3K-RL Spring Designator Set Pressure Range, psig (bar) to (.68 to.) High-Pressure Valves (R3A and R Series) Valve does not contain spring. Select a valve ordering number and a spring kit ordering number. Spring Kits Spring kits include spring, label, 3 SS lock wire with seal, spring support, and installation instructions. Select a spring kit basic ordering number and add the spring designator for the desired set pressure range as a suffix. Examples: 77-R3A-K-F; 77-3K-R-C. Spring Color R3A Series Spring Kit: Basic Ordering Number 77-R3A-K- to 3 (3. to ) A Blue 3 to 7 ( to ) B Yellow 7 to ( to ) C Purple to ( to ) D Orange to 3 ( to ) E Brown 3 to ( to 7) F White to (7 to 3) G Red to 6 (3 to ) H Green R Series Spring Kit: Basic Ordering Number 77-3K-R- to 3 (3. to ) A Blue 3 to 7 ( to ) B Yellow 7 to ( to ) C Purple Options and Accessories Seal Materials Fluorocarbon FKM is the standard seal material. Optional seal materials are available. To order, add a seal material designator as a suffix to the valve ordering number. Example: SS-RL3S-BU. Seal Kits Fluorocarbon FKM, Buna N, ethylene propylene, and neoprene seal kits are available. To order, insert a seal material designator as a prefix (R3A series) or suffix (all others) to the seal kit basic ordering number. Examples: BU-R3A-K; SS-3K-RL3-BU. RL3 Series R3A Series RL Series R Series Seal Kit Basic Ordering Number SS-3K-RL3- -R3A-K SS-3K-RL- SS-3K-R- O-ring, quad seal, bonded disc, retainer, instructions O-rings (), quad seal, retainer, instructions Manual Override Handles A manual override handle opens the valve without changing the set pressure. For use with: RL3 and RL series standard spring R3A seriesa, B, and C springs only R seriesa spring only. Handle diameter is. in. (38. mm). Maximum overall height of valve with handle in closed position:.6 in. (3 mm) for R3A and RL3 series 6.78 in. (7 mm) for R and RL series. Seal Material Buna N Ethylene propylene Neoprene Fluorocarbon FKM Seal Kit Contents O-ring, quad seal, bonded disc, retainer, instructions Designator -BU -EP -NE -VI for seal kits; no designator for valves O-ring, quad seal, bonded stem, instructions Phenolic handle 36 SS pull rod 36 SS spring support To order, add -MO as a suffix to the valve ordering number. Example: SS-RL3S-MO. Manual Override Handle Kits Kits contain handle, pull rod, spring support, and instructions. To order, select the desired kit ordering number. Series RL3, R3A RL, R Manual Override Kit Ordering Number SS-R3A-K SS-R-K 7

30 Proportional Relief Valves Some system applications require relief valves to meet specific safety codes. The system designer and user must determine when such codes apply and whether these relief valves conform to them. Safe Product Selection When selecting a product, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Caution: Do not mix or interchange parts with those of other manufacturers. SwagelokTM Swagelok Company 7-7 PHTM AK Steel Corp. Swagelok Company Printed in U.S.A., MI February, R MS-- 8

31 Industrial Excess Flow Valves Stop uncontrolled release of system media if downstream line ruptures XS Series Pressures up to 6 psig (3 bar) Temperatures up to F ( C) /8 to / in. and 6 to mm end connections Stainless steel construction

32 Industrial Excess Flow Valves Features Slotted poppet improves performance and reliability provides high-flow capacity eliminates nuisance tripping. Open Position Flow Choice of tube, pipe, or face seal end connections eases installation increases system versatility lowers overall cost. Tripped Position Spring-loaded actuation eases operation allows valve to work in any orientation, enhancing system safety. Bleed vent eliminates complex bypass mechanisms allows spring to reset poppet automatically. All metal seat improves durability requires no maintenance. Operation The spring-loaded poppet remains in the open position during normal system operation. Should an excess flow condition occur downstream, the poppet rapidly moves to the tripped position, stopping uncontrolled release of system media. When pressure equalizes through the bleed vent, the spring automatically resets the poppet and opens the valve. Pressure-Temperature Ratings Ratings based on fluorocarbon FKM O-rings. See Optional O-ring Materials, page. Ratings limited to: psig (3 bar) for XS series valves with 3/8 in. female NPT end connections. 6 psig (36 bar) for XS series valves with / in. female NPT end connections. ASME Class Material Group. Material Name Temperature, F ( C) ( 3) to (37) (93) () 3 (8) () 36 SS Working Pressure, psig (bar) 6 (3) 6 (3) 9 (338) 66 (3) 8 (9) For more information about ASME classes, material groups, and ratings, see the Swagelok Valve Pressure-Temperature Ratings technical bulletin. For more information about valves with tube fitting end connections, see the Swagelok Tubing Data or Metric Tubing Data catalog. Pressure ratings of valves with VCR or VCO fitting end connections are based on the ratings of the mating fitting; see the Swagelok VCR Metal Gasket Face Seal Fittings or the Swagelok VCO O-ring Face Seal Fittings catalog.

33 Industrial Excess Flow Valves 3 Materials of Construction Material Grade/ Component ASTM Specification Inlet body 36 SS/A79 Identification ring Polyetherimide 3 Poppet 36 SS/A79 Spring 3 SS/A33 O-ring Fluorocarbon FKM 6 Backup ring PTFE ➀ /D7 7 Outlet body 36 SS/A79 Lubricant Silicone based Wetted components listed in italics. ➀ PEEK also available; see Ordering Information, page. Testing Every XS series valve is factory tested for proper operation. Cleaning and Packaging Every XS series valve with VCR or VCO fitting end connections is specially cleaned and packaged in accordance with Swagelok Specification SC-, which meets the cleanliness requirements of ASTM G93 Level C. XS series valves with other end connections are cleaned and packaged in accordance with Swagelok Specification SC; special cleaning and packaging in accordance with Specification SC- is available as an option. Flow Data at 7 F ( C) Springs with lower trip ranges are available. See the Swagelok XS Series Valve Technical Report. XS Series Air Flow Open Trip Range Tripped XS6 Series Air Flow Open Trip Range Tripped XS8 Series Air Flow Open Trip Range Tripped XS, XS6, XS8 Series Water Flow Series C v U.S. gal/min (L/min) Trip Range XS. 3.9 to.8 (.7 to.9) XS6 8. to. (3. to 37.9). XS8. to.9 (. to 6.)

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