Suitable medium: water, oil and gas

Standard materials of parts

No.	Parts	Cast Iron Material	Ductile Iron Material
1	Seat ring	Cast brass	Cast brass
2	Body	Cast iron	Ductile iron
3	Wedge face ring	Cast brass	Cast brass
4	Stem	Stainless steel	Stainless steel
5	Wedge	Cast iron	Ductile iron
6	Wedge bushing	Cast brass	Cast brass
7	Bolt	Steel	Steel
8	Nut	Steel	Steel
9	Bonnet gasket	Graphite	Graphite
10	Bonnet	Cast iron	Ductile iron
11	Stuffing box gasket	Graphite	Graphite
12	Stuffing box	Cast iron	Ductile iron
13	Double end studs	Steel	Steel
14	Nut	Steel	Steel
15	O-Ring	Buna N	Buna N
16	Handwheel	Cast iron	Cast iron
17	Washer	Steel	Steel
18	Bolt	Steel	Steel