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Standard for design and manufacture
1. Design and manufacture
According to GB/T 1224 GB/T 12228
2. Connecting end dimension
Socket dimension according to JB/T 1751
Threaded end dimension according to GB/T 7306
3. Valve inspect and test:
According to GB/T 13927
4. Material
(1)Carbon steel according to GB/T 699
(2)Stainless steel according to GB/T 1220
(3)Heat-resisting steel according to GB/T 1221
Main property and specification
Body and bonnet: Carbon steel
Seat, disc and stem: Stainless steel
Shim: Stainless steel and graphite
Packing: Flexible graphite
Application medium: Water , oil and steam
Size: 1/2”-2”
Pressure: 1.6, 2.5, 4.0, 6.4, 10.0, 16.0Mpa




