描述
valve pressure test spark test standards and product installation repair and maintenance
Main parts and materials
Parts name | Material | ||||||||||||||||||||||
Body,bonnet | Cast steel/cast iron | ||||||||||||||||||||||
Stem | 2Cr13/cast steel | ||||||||||||||||||||||
Lining | Rubber/FEP(F46)/PCTFE(F3)/PTFE(F4)/FPA/Enamelled |