Flange Gate Valve Standard Material Specifications 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 | Seat Ring | A276 420 | A276 304 | A276 304(L) | A276 316(L) | 3 | Wedge | A276 410 & 430 | A182 F304 | A182 F304(L) | A182 F316(L) | 4 | Stem | A182 F6 | A182 F304 | A182 F304(L) | A182 F316(L) | 5 | Gasket | Corrugated SS + graphite | SS + PTFE | 6 | Bonnet | A105 | A182 F22 | A182 F304(L) | A182 F316(L) | 7 | Bonnet Bolt | A193 B7 | A193 B16 | A193 B8 | A1 |
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