API 603 CF8M gate valves mass production in JEV workshop
Super-austenite
CN7M gate valves, the largest size is 18”-150 gate valve,
casting easily to
have cracks, JEV did research and eliminate all defects, all casting RT and PT
tested
Duplex stainless steel 4A/5A are commonly to be made in JEV foundry
Hastelloy
CW12MW nickel based alloy: Hastelloy alloy is easily to have cracks when
casting and welding process,
JEV did research and develop good technology to
pour high quality casting. All casting RT and PT tested
Stainless steel, Super Austenite Stainless steel, Duplex stainless steel, Nickel Based Alloy - Hastelloy
