Characteristics and Applications: This valve is used in harsh operating conditions and at shut-off positions requiring long-term (30 years) service, and is applied in the oil and gas industry, petrochemical refining and processing, mining, and other industrial fields. It is made of high-quality materials and forged pressure-bearing components, and can also be equipped with a purging system, cavity filling, anti-leak valve cover, wear-resistant bushing, and other special designs. Manufacturing standards: Design standard: API 608; Structural length: ASME B16.10 Applicable temperature: -29+250℃ Shell material: WCB A105 Specification: 6~28 inches Connection type: flange Pressure rating: 600LB~1500LB