API 602 Forged Pressure Seal Lift Check Valve

API 602 Forged Pressure Seal Lift Check Valve

Materials

NO. NAME MATERIAL
1 BODY ASTM A182 Gr.F316+STL#6
4 PISTON DISC ASTM A182 Gr.F316+STL#6
5 SPRING ASTM A182 Gr.F304
9 BONNET ASTM A182 Gr.F316
11 BODY SEAL SS316+GRAPHITE
12 SEALING SEAT ASTM A182 Gr.F316
37 LOCK NUT ASTM A194 Gr.8
41 PRESSURE RING ASTM A182 Gr.F316

Note: the other materials that required by customers can also be used. The sealing surface material matching is decided by customer specified inner parts codes. CS means carbon steel; AS means alloy steel; SS means stainless steel.

Dimensions & Weights

Dimensions & Weights of API 602 Forged Pressure Seal Lift Check Valve
NPS 1/2″ 3/4″ 1″ 1-1/4″ 1-1/2″ 2″
L 900 - 1500 Lb 140 140 140 178 178 216
2500 Lb 186 186 186 232 232 279
H 117 117 117 152 152 195
Weight 900 - 1500 Lb 7.5 7.0 6.8 18.5 18.1 20.3
2500 Lb 9.0 7.6 8.4 19.5 20.1 21.8

Piston - Bolted Cover - Flanged Ends-Materials

NO. Part Name CS to ASTM AS to ASTM SS to ASTM
Type A105 Type F22 Type F304(L) Type F316(L)
1 Body A105 A182 F22 A182 F304(L) A182 F316(L)
2 Lift Disc A276 420 A276 304 A276 304(L) A276 316(L)
3 Pressure Seat A105 F22 A182 F304(L) F316(L)
4 Pressure Ring A276 304L A276 316L
5 Retaining Nut A194 2H A194 4 A194 8 A194 8M
6 P.S. Lock Nut A194 2H A194 4 A194 8 A194 8M
Suitable Medium W.O.G. etc W.O.G. etc HNO3,CH3OOH etc
Suitable Temperature -29°C~425°C -29°C~550°C -29°C~180°C
Piston- Bolted Cover -Flanged Ends-Materials

ASME Pressure Classes 900, 1500, 2500 Lb
Piston- Bolted Cover -Flanged Ends- Dimensions and Weights

NPS 1/2 3/4 1 1-1/4 1-1/2 2
L(RTJ) 900Lb~1500Lb 216 229 254 305 305 368
2500Lb 264 273 308 384 384 451
H 900Lb~1500Lb 117 117 117 152 152 195
2500Lb 117 117 117 152 152 195
Weights 900Lb/1500Lb 10.5 11.9 13.9 26.9 26.9 32.5
2500Lb 12.6 14.9 16.5 30.0 30.0 35.0