Applied Standard
1. Design and Manufacture: According to Standard:ANSI, B16.34,API,602.
2. Size of the Junction End:
<1> The size of bell and spigot hole is designed according to standard: ANSI B16.11,JIS, B2306.
<2> The size of the threaded end is designed according to standar ANSI1 B1.20.1 B21 ISO7/1 JIS B0203.
3. Testing of Valves:According to API 598.
4. Structure Characteristics:P.T,; OS&Y.
5. Materials:According to the requirements of AISI/ASTM.
6. Main Materials A105;F5;F11;F22;304;304L;316;316L;Lf2 etc.
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