1. The valve body has casting and welding structures.

2. The valve seat adopts the structure of O-ring seal and floating valve seat with preload applied to make the inlet and outlet of the valve sealed in both directions; And the opening and closing torque of the structure is only 1/2 of that of ordinary valves, which can easily open and close the valve.

3. The valve seat adopts PTFE inlaid on the sealing surface, which has the double sealing of PTFE to metal and metal to metal. The PTFE sealing surface can simultaneously remove the dirt on the ram.

4. For metal to metal sealed valves, grease injection structure is set outside the valve body, and the grease enters the valve sealing surface through the grease injector and valve seat to make the valve reach zero leakage.

5. The gate with the diversion hole valve, whether fully open or fully closed, is always consistent with the sealing surface, and the sealing surface is protected from direct flushing by the medium, thus extending the service life.

6. When the valve is fully opened, the channel is smooth and straight, the flow resistance coefficient is very small, and there is no pressure loss. The pipeline can be cleaned with a hairball.

7. The valve adopts the packing structure with self sealing ability, which requires no frequent adjustment. It is very convenient to open and close, and the sealing is reliable. The stuffing box is equipped with an auxiliary sealing grease injection structure, and the sealing performance is absolutely reliable, truly reaching zero leakage; The utility model solves the problem that the packing part of the universal valve is easy to leak.

8. When the valve is closed, the high pressure in the inner chamber can be removed automatically (see the schematic diagram for details) to ensure safe use.

9. Fully enclosed structure, good protection performance, and can adapt to all-weather requirements.

10. The valve is equipped with an indicator rod or observation window to indicate the opening and closing of the valve.