Check Valves Flanged End (RF and RTJ) Swing Style Integrally Cast Flange design. Standard trim includes 316 Stainless Steel Disc, Shaft and Bushings. Unique optional 316 Stainless Steel removable Seat available. Installing the Series 35 in vertical upflow applications requires no modification, and the Series 35 Check Valve is also suitable for Pigging. B Dimensional Data, ANSI Class 150 through 1500 A Description Class 2" 3" 4" 6" 8" 10" 12" 14" 16" 150 19 48 75 110 220 530 650 1150 2010 300 26 65 101 185 370 530 900 1450 2010 Weight LBS. 600 48 97 155 300 560 1020 1355 1975 2500 900 80 115 215 435 775 1250 1620 1500 118 128 365 765 1220 1560 2050 150 8 9 1 /2 11 1 /2 14 19 1 /2 24 1 /2 27 1 /2 31 34 300 10 1 /2 12 1 /2 14 17 1 /2 21 24 1 /2 28 33 34 600 RF 11 1 /2 14 17 22 26 31 33 35 39 600 RTJ 11 A /8 14 1 /8 17 1 /8 22 1 /8 26 1 /8 31 1 /8 33 1 /8 35 1 /8 39 1 /8 900 RF 14 1 /2 15 18 24 29 33 38 900 RTJ 14 5 /8 15 1 /8 18 1 /8 24 1 /8 29 1 /8 33 1 /8 38 1 /8 1500 RF 14 1 /2 18 1 /2 21 1 /2 27 3 /4 32 3 /4 39 44 1 /2 1500 RTJ 14 5 /8 18 5 /8 21 5 /8 28 33 1 /8 39 3 /8 45 1 /8 150 4 3 /4 5 1 /2 6 1 /4 8 10 1 /2 13 13 5 /8 17 21 3 /4 300 4 3 /4 5 1 /2 6 1 /2 8 7 /8 11 3 /4 13 14 1 /2 18 1 /4 21 3 /4 B 600 5 1 /4 6 1 /4 7 1 /2 10 1 /4 13 14 5 /8 16 3 /8 19 3 /4 23 1 /2 900 5 1 /4 6 3 /4 8 1 /4 10 3 /4 13 3 /4 15 1 /2 17 1 /4 1500 5 7 /8 7 3 /8 8 7 /8 11 5 /8 15 1 /2 18 1 /4 20 1 /2 600 R23 R31 R37 R45 R49 R53 R57 R61 R65 Ring Size 900 R24 R31 R37 R45 R49 R53 R57 1500 R24 R35 R39 R46 R50 R54 R58 20
KF Series 35 Check Valves DimensionalData,API 2000, 3000 &5000 Description Class 2 1 /16" 3 1 /8" 4 1 /16" 7 1 /16" API 2000 48 97 155 300 Weight Lbs. API 3000 78 115 215 435 API 5000 78 128 365 765 API 2000 11 5 /8 14 1 /8 17 1 /8 22 1 /8 A API 3000 14 5 /8 15 1 /8 18 1 /8 24 1 /8 API 5000 14 5 /8 18 5 /8 21 5 /8 28 API 2000 5 1 /4 6 1 /4 7 1 /2 10 1 /4 B API 3000 5 7 /8 6 3 /4 8 1 /4 10 3 /4 API 5000 6 1 /8 7 3 /8 8 7 /8 11 5 /8 API 2000 R23 R31 R37 R45 Ring Size API 3000 R24 R31 R37 R45 API 5000 R24 R35 R39 R46 s, ANSI Class 150 through 1500 Class MOP 2" 3" 4" 6" 8" 10" 12" 14" 16" 150 285 7776-7778- 7779-7781- 7782-7783- 7784-7785- 7786-300 740 7802-7804- 7805-7807- 7808-7809- 7810-7811- 7812-600 1480 7854-7856- 7857-7859- 7860-7861- 7862-7863- 7864-900 2220 7880-7882- 7883-7885- 7886-7887- 7888-1500 3705 7906-7908- 7909-7911- 7912-7913- 7914- Class MOP 18" 20" 24" 150 285 7787-7788- 7790-300 740 7813-7816- 600 1480 7865-7866- 7868-900 2220 7892-1500 3705 Check Valve Design, Pressure Class, and Size Availability Chart s API 2000, 3000&5000 API 2 1 /16" 3 1 /8" 4 1 /16" 7 1 /16" 2000 7917-7918- 7919-7920- 3000 7926-7927- 7928-7929- 5000 7935-7936- 7937-7938- Locate size and pressure class on the chart below and find the designated design that s available. Use the Charts above and combine with the Part Code Charts on the following pages to build your part number. NS=New Shaft Style (Springless), OS=Old Shaft Style (Spring), T=Trough Style Class 2" 3" 4" 6" 8" 10" 12" 14" 16" 18" 20" 24" 150 NS NS NS NS T T T T NS T NS 300 NS NS NS NS T T T T NS NS 600 NS NS NS NS OS T T T T NS T T 900 OS OS OS T T T T NS T NS 1500 OS OS T T T T T 2500 OS OS OS NS 21
Part Code (Old Shaft Style) XXXX - X XX X X X X X X X End Connection Body, Bonnet & Plug Material* Internal Coating and NACE Disc, Shaft and Bushings* Spring Material Seat/Disc Seal Configuration Replaceable Seat Ring Material* 1 RF 3 Buttweld/Standard/Sch. 40 5 Buttweld/XS/Sch. 80 7 Buttweld/XXS (1" through 12" sizes only) 9 Flat Faced 13 Carbon Steel (Carbon Steel Studs & Nuts) 14 4C (Carbon Steel Studs & Nuts) API 6A only 15 316 Stainless Steel (Xylan Ctd. CS Studs & Nuts) 17 Aluminum Bronze (Xylan Ctd. CS Studs & Nuts) (Monel Plug) 26 317 Stainless Steel (Xylan Ctd. CS Studs & Nuts) 28 LCC (Low Temp. Studs & Nuts) (316 SS Plug) 29 CA15 Stainless Steel (Xylan Ctd. CS Studs & Nuts) API 6A only 2 NACE (Class III Bolting) 3 NACE and Internal Epoxy Coating (Class III Bolting) 4 NACE II (Class II Bolting) 5 NACE II and Internal Epoxy Coating (Class II Bolting) 7 NACE III Enduro-Bond Coating (Class III Bolting) 8 NACE II Enduro-Bond Coating (Class II Bolting) M 317 Stainless Steel S Aluminum Bronze Disc, Monel Shaft & Bushings 3 Low Torque 316 Stainless Steel 4 Inconel X 5 Low Torque Inconel X 1 Integral Metal/Resilient 2 Integral Metal/Metal (HT Bnt Gskt) 4 Replaceable Metal/Metal (HT Bnt Gskt, VTN B-U) 5 Integral Stellite Overlay/Resilient 6 Integral Stellite Overlay/Stellite Overlay (HT Bnt Gskt) 7 Integral 316 Stainless Steel Overlay/Resilient (HT Bnt Gskt & VTN B-U) F Replaceable 316 Stainless Steel/Metal to Metal (Integral Seat Face) 5 Low Temp. Buna N 3 Fire Safe (HT Bnt Gskt) 4 Fire Safe w/body Drain *Consult factory for the availability of materials and sizes not listed. 22
Part Code (New Shaft Style) XXXX - X XX X X X X X X X End Connection Body, Bonnet & Plug Material* Internal Coating and NACE Disc & Shaft* Configuration/Process Code Seat/Disc Seal Configuration Replaceable Seat Ring Material* 1 RF 3 Buttweld/Standard 4 Buttweld/Sch. 40 (12" through 16" sizes only) 5 Buttweld/XS 6 Buttweld/Sch. 80 (10" through 16" sizes only) 7 Buttweld/XXS (1" through 12" sizes only) 9 Flat Faced 13 Carbon Steel (Carbon Steel Studs & Nuts) 15 316 Stainless Steel (Xylan Ctd. CS Studs & Nuts) 17 Aluminum Bronze (Xylan Ctd. CS Studs & Nuts) (Monel Plug) 26 317 Stainless Steel (Xylan Ctd. CS Studs & Nuts) 28 LCC (Low Temp. Studs & Nuts) (316 SS Plug) 2 NACE (Class III Bolting) 3 NACE and Internal Epoxy Coating (Class III Bolting) 4 NACE II (Class II Bolting) 5 NACE II and Internal Epoxy Coating (Class II Bolting) 7 NACE III Enduro-Bond Coating (Class III Bolting) 8 NACE II Enduro-Bond Coating (Class II Bolting) F CS Disc, 316 SS Shaft and Bushings (4" and larger) M 317 Stainless Steel S Aluminum Bronze Disc, Monel Shaft & Bushings A Standard (New Shaft Style) B Standard (New Trough Style) 1 Integral Metal/Resilient 2 Integral Metal/Metal (HT Bonnet Gasket) 4 Replaceable Metal/Metal (HT Bnt Gskt, VTN B-U) 5 Integral Stellite Overlay/Resilient 6 Integral Stellite Overlay/Stellite Overlay (HT Bnt Gskt) 7 Integral Metal/316 SS Overlay (4" and up) (HT Bonnet Gasket) 8 Integral 316 SS Overlay/316 SS Overlay (4" and up) (HT Bonnet Gasket) (HT Bonnet Gasket & VTN B-U) (Integral Seat Face) 5 Low Temp. Buna N 3 Fire Safe (HT Bnt Gskt) 4 Fire Safe w/body Drain 5 Upstream Bleed 6 Upstream Bleed & Body Drain 7 Upstream Bleed & Fire Safe (HT Bonnet Gasket) 8 Upstream Bleed/Fire Safe/Body Drain (HT Bnt Gskt) *Consult factory for the availability of materials and sizes not listed. 23
Part Code (Trough Style) XXXX - X XX X X X X X X X End Connections Body and Bonnet Material Internal Epoxy Coating and NACE Disc, Shaft and Bushings Bonnet Seal Configuration Seat/Disc Face Configuration Replaceable Seat Ring Material* 1 RF 3 Buttweld/Standard 4 Buttweld/Sch. 40 (12" through 16" sizes only) 5 Buttweld/XS 6 Buttweld/Sch. 80 (10" through 16" sizes only) 7 Buttweld/XXS (1" through 12" sizes only) 9 Flat Faced 13 Carbon Steel 15 316 Stainless Steel (Xylan Ctd. CS Studs & Nuts) 17 Aluminum Bronze (Xylan Ctd. CS Studs & Nuts) 26 317 Stainless Steel (Xylan Ctd. CS Studs & Nuts) 28 LCC (Low Temp. CS Studs & Nuts) 2 NACE (Class III Bolting) 3 NACE and Internal Epoxy Coating (Class III Bolting) 4 NACE II (Class II Bolting) 5 NACEII and Internal Epoxy Coating (Class II Bolting) 7 NACE III Enduro-Bond Coating (Class III Bolting) 8 NACE II Enduro-Bond Coating (Class II Bolting) F CS Disc, 316 SS Shaft and Bushings M 317 Stainless Steel (API 6D only) S Aluminum Bronze Disc, Monel Shaft & Bushings 7 High Temp./Firesafe Bonnet Gasket 9 Standard 1 Integral Metal/Resilient 2 Integral Metal/Metal 4 Replaceable Metal/Metal 5 Integral Stellite Overlay/Resilient 6 Integral Stellite Overlay/Stellite Overlay 7 Integral Metal/316 Stainless Steel Overlay (6" and up) 8 Integral 316 SS Overlay/316 SS Overlay (6" and up) (Any assembly w/ Integral Seat Face) 5 Low Temp. Buna N 5 Upstream Bleed 6 Upstream Bleed & Body Drain (90 Durometer) *Consult factory for the availability of materials and sizes not listed. 24
API 6A Part Code End Connection Body & Bonnet Material Internal Epoxy Coating and NACE Disc, Shaft and Bushings Spring Material Seat/Disc Seal Configuration Replaceable Seat Ring Material 14 4C (Carbon Steel Studs & Nuts) 29 CA15 Stainless Steel (CS Studs & Nuts) 30 CA15 Stainless Steel (SS Studs & Nuts) 2 NACE 3 NACE and Internal Epoxy Coating 7 NACE II Enduro-Bond Coating 8 NACE III Enduro-Bond Coating F CS Disc, 316 SS Shaft and Bushings H CS (3 Mil ENP) Disc, 316 SS Shaft & Bushings M 317 Stainless Steel 3 Low Torque 316 Stainless Steel 4 Inconel X 5 Low Torque Inconel X 4 Replaceable Metal/Metal 5 Upstream Bleed 6 Upstream Bleed & Body Drain XXXX - 2 XX X X X X X X X 25