1, compact structure, reasonable design, good valve rigidity, smooth channel, small flow 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 for manual, pneumatic, electric, gear transmission;

5, the structure form is elastic wedge type single gate, rigid wedge type single gate double gate type.