Pressure-seal Swing Check Valve 900Lb~2500Lb Standard Material Specifications NO. | Part Name | CS to ASTM | AS to ASTM | SS to ASTM | Tyep A105 | Type F22 | Type F304(L) | Type F316(L) | 1 | Seat Ring | A276 410 | A276 304 | A276 304(L) | A276 316(L) | 2 | Pin | A276 420 | A182 F304 | A182 F316 | 3 | Pressure Ring | A276 304L | A276 316(L) | 4 | Pressure Seat | A105 | A182 F304 | A182 F304(L) | A182 F316(L) | 5 | Body | A105 | A182 F22 | A182 F304(L) | A182 F316(L) | 6 | Bonnet | A105 | A182 F22 | A182 F304 L | A182 F316(L) | 7 | Bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M | 8 | Quarter Ring | A276 420 | A182 F304 | A182 F316 | 9 | Pontlevis | A105 | A182 F22 | A182 F304 L | A182 F316(L) | 10 | Hinge | A105 | A182 F22 | A182 F304 L | A182 F316(L) | 11 | Disc | A276 420 | F304 | A182 F304(L) | F316(L) | 12 | Nut | A194 2H | A194 4 | A194 8 | A194 8M | Suitable Medium | W.O.G.etc | W.O.G.etc | HNO3,CH3OOH etc | Suitable Temperature | -29 425 | -29 550? | -29 180 | Note: Other materials are available upon request. Dimensions (mm) and Weights (Kg) NPS | 1/2~ | 3/4~ | 1~ | 1-1/4~ | 1-1/2~ | 2~ | L | 900~1500Lb | 140 | 140 | 140 | 178 | 178 | 216 | 2500Lb | 186 | 186 | 186 | 232 | 232 | 279 | H | 117 | 117 | 117 | 152 | 152 | 195 | Weights | 900~1500Lb | 8.2 | 7.8 | 7.7 | 19.8 | 19.2 | 21.3 | 2500Lb | 10.0 | 9.6 | 9.4 | 21.5 | 21.1 | 22.8 | | 
