1. Compact structure, reasonable design, good valve rigidity, smooth channel, small flow resistance coefficient.

2. Sealing surface of stainless steel and hard alloy, long service life.

3. The use of flexible graphite packing, reliable sealing, light and flexible operation.

4. Drive mode: manual, bevel gear, worm gear, electric, pneumatic;

Structure type: elastic wedge type single gate, rigid wedge type single gate and double gate.

5. Widely used in petrochemical, thermal power plants and other oil, water and steam pipeline as the opening and closing device to connect or cut off the pipeline medium.