Forged Steel Piston Check Valves Class 800 / 1500 / 2500 Bolted cover, Piston type disc, Reduced port or full port.. Description: Design and manufacture: API 602 & ANSI Design and manufacture: B16.34 Socket weld end: ANSI B16.11 Screwed end: ANSI B1.20.1 Test and inspection: API 598 Size: 1/4" ~ 2 " Standard materials: A105, LF2, F5, F11, F22, Standard materials: F304, F304L, F316, Standard materials: F316L etc.

Standard materials of parts

No.	Parts	Materials
1	Body	A105
2	Cover	A105
3	Disc	A276-420
4	Cover bolt	A193-B7
5	Gasket	304 + Graphite
6	Name plate	Aluminum

> Dimensions and weight <