CDG check valves can be reliably and reliably applied in oil, gas, steam, air, gas and other high and low pressure applications.The inner - mounted rocker structure is adopted to reduce the possibility of leakage.If the customer requires swing check valves to be equipped with external lever and adjustable pressure iron, a wide range of inner parts material and the connection form between the valve body and the valve cover can be configured according to the operating conditions.Large caliber can be used for slow closing device.

Adopt the following structure:

Taper seal disc or soft seal structure.

Replace the upper seal holder.

Bolt connection, wound gasket type octagonal seal valve cover and pressure self-tightening valve cover.

Adopt the following standards:

Flange ends meet ASME B16.5.

The welding ends meet ASME B16.25.

Structural length: ASME B16.10.

The operation mode can be changed to electric, pneumatic, hydraulic and gear transmission.