Explanation of gate valve material abbreviations
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Could everyone please help explain what materials these abbreviations for gate valve materials represent?
Gate valve, CLASS 800 pound rating, socket weld type, carbon steel valve body; valve body material A105N, metal hard seal, API 5# internals, rigid wedge gate, exposed stem with support, bolted valve cover, manufactured per API standards
Sealing surface of HF-cochromium alloy
HF stands for sealed surface welding STL, double-sided STL
This post was last edited by Changcheng Pipeline Equipment on 2018-11-27 at 13:39. HF refers to sealed surface welding STL, double-sided STL; others have already explained it above! ! API 5# internal components, which means that the internal parts are made of grade 5 material