Wafer type double disc swing check valve is composed of body, disc, stem and spring and so on parts. Due to the short closing stroke of the disc and the spring loading, the disc closing is fast, the water hammer pressure is small. By using different materials, the double disc check valve can be used in petrochemical, metallurgy, electric power, light industry, food and other industries in water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and urea and other media.

Executive standard

Design and manufacturing: JB/T8937, API594

Face to face: JB/T8937, API 594

Inspection & Testing: API 598

Pressure/ Temperature level: GB/T12224, ASME B16.34

Nominal size：DN15-DN1200, NPS1/2~48

Nominal pressure: PN10~PN420, Class 150~ Class 2500

Working temperature: -196℃~540℃

Main component material