Features

• The valve adopts all-metal bi-directional seal structure. The bi-directional has the same pressure bearing capacity and no flow direction restriction. It can be installed at a horizontal or upward 70° angle.

• The replaceable integral metal sealing surface is used, and the sealing surface of the butterfly plate is sealed with the butterfly plate and the valve seat, and can be separated from each other to prevent the waste of the whole valve replacement caused by the damage of the sealing surface.

• The seal pair is an all-metal surfacing hard alloy layer structure, which has a longer life than the U-shaped seat and the multi-layer sealing structure.

• Reinforced carbon fiber packing with a butterfly spring ensures the most reliable seal that can be automatically compensated with minimum torque.

Performance Parameters

Nominal diameter: 4〞~64〞 (DN100~DN1600)

Nominal pressure: up to Class 2500

Applicable temperature:  -196 °C ~ 850 °C

Connection type: Welding, wafer, lug, flange  

Flow characteristics: Switch type

Body material: WCB, F22, F316

Operation type: Handle, pneumatic, electric

Application Condition

Thermal power plant, coal chemical industry, high temperature, high pressure, bi-directional pressure working conditions, and can be used to regulate flow rate.