Characteristics and Applications: This valve is used in the shut-off position for harsh working conditions and long-term (30 years) use, and is applied in oil and gas, petrochemical refining, mining, and other industrial fields. Made of materials and forged pressure bearing components, it can also be equipped with a blowing system, cavity filling, anti leakage valve cover, anti wear liner, and other special designs. Manufacturing standards: Design standard: API 608 Structure length: ASME B16.10 Applicable temperature: -29+250 ℃ Shell material: WCB A105 Specification: 6-28 inches Connection type: flange Pressure level: 600LB~1500LB