PMSS(primary metal, secondary soft)

Design acc.to API 6D, DIN3357
Face-to-Face acc. to ASME B16.10
Flange acc. to ASME B16.5, DIN EN1092
Butt Weld acc. to ASME B16.25
Test acc. to API 598, DIN3230
Fire Proof acc. to API607
Anti-H2S acc. to NACE MR-0175
Size from 2” to 20”
Pressure from 150LB to 1500LB, PN16 to PN250

Material:ASTM including A216 WCB, A352 LCB, A352 LCC,A351 CF8,A351 CF8M, A351 CF3,A351 CF3M, A217 WC6, A217 WC9, A217 C5, A217 C12, A217 C12A, A890 4A, A890 5A, A105(1.0460), A350 LF1, A350 LF2,A350 LF3,A182 F304,A182 F316, A182 F304L, A182 F316L, A182 F11,A182 F22, A182 F5, A182 F9, A182 F91, A182 F51, A182 F53, A182 F55,etc.

DIN including GS-C25, 1.0619,1.0460(C22.8), 1.4308, 1.4408, etc.

Feature: this design is used in the air medium with pellet,such as natural gas pipe,the metal seat stop the pellet in the pipe from corroding the soft seat,the soft seat make the sealing better,if the soft seat fails,the metal seat can still work.