1. The valve seat adopts the floating seat structure of O-ring seal and pre-tightening force to make the inlet and outlet of the flat gate valve bi-directional seal. And the opening and closing moment of the structure is only 1/2 of the ordinary valve, which can easily open and close the valve.
2. When fully open, the channel is smooth and straight, the flow resistance coefficient is very small, and there is no pressure loss, and the pipeline can be cleaned by hair ball.
3. Self-sealing packing structure, sealing is more reliable than ordinary graphite packing, and oil is injected into the packing sealing surface, the sealing surface reaches the zero leakage standard, which solves the common problems of running, dropping and leakage of the general valve.
4. When the plate gate valve is closed, the high pressure in the inner cavity can be automatically removed to ensure safe operation.
5. Fully enclosed structure, good protection performance, can adapt to all-weather requirements.
6. The sealing structure of the valve seat should be elastic with pre-tightening force, and the upper and downstream sealing seats should be sealed at the same time. Always face to face between the seat and the seal.
7. The valve seat has self-cleaning function and is not directly washed by airflow during the valve opening or closing process. The seat shall be made of a lubricated, non-abrasive material.
8. The failure of valve actuator will not affect other parts of the valve. Repair and replacement work can be carried out without disassembling the valve.
9. Yoke Sleeve -- Aluminum bronze yoke sleeve with needle thrust bearings to minimize operating torque.
10. Stem -- thread length to bracket; Pin and spot welding; It has stability.
11. Pressure Sealing -- Simple design with segmental ring and silver plated mild steel gasket for removal and optimal bonnet sealing.
12. Seat Ring -- Welded seat rings are perpendicular to the flow path for easy maintenance.
13. Actuators -- These valves are available with electric, hydraulic or pneumatic actuators. Below DN300 standard manual handwheel, above DN350 helical gear operating mechanism.
14. Yoke -- Fully assembled yoke is aseismic tested for easy maintenance and actuator installation.
15. Gland -- Two piece, self adjusting gland to avoid being ejected.
16. Integral backseat - hard facing for maximum service life.
17. Disc -- Spring-loaded discs are self-adjusting to reduce actuator torque requirements.
18. Integral stop - Integral cast bracket stop, positioning assembled bracket disc, making the seat more reliable.
19. Body is available in both cast and welded construction.
20. The valve seat adopts the floating valve seat structure with O-ring seal and pre-tightening force, so that the valve inlet and outlet are bidirectional sealed; And the opening and closing moment of the structure is only 1/2 of the ordinary valve, which can easily open and close the valve.
21. For the metal-to-metal sealed valve, the valve body is provided with a grease filling structure, and the grease enters the sealing surface of the valve through the grease filling device and the valve seat, so that the valve can achieve zero leakage.
22. The valve seat adopts PTFE embedded on the sealing surface, with PTFE to metal and metal to metal double seal, PTFE sealing surface at the same time to remove the dirt of the gate.
23. Gate plate and valve seat are treated by special technology, sprayed with hard alloy, wear-resistant tetrafluorine, and realize double sealing. And can inject grease to assist sealing double protection, sealing more reliable, longer service life.
24. The gate plate of the valve with diversion hole, whether fully open or fully closed, is always consistent with the sealing surface. The sealing surface is protected from direct erosion by the medium, thus prolongs the service life.
25. When the valve is fully open, the channel is smooth and straight, the flow resistance coefficient is very small, and there is no pressure loss, and the pipeline can be cleaned by the hair ball.
26. The valve adopts the packing structure with self-sealing ability, without frequent adjustment, opening and closing is very portable, and the sealing is reliable, the stuffing box is equipped with an auxiliary sealing grease injection structure, sealing performance is absolutely reliable, truly achieve zero leakage; Solve the common valve packing is the most easy to leak out of the malady.
27. When the valve is closed, the high pressure in the inner cavity can be automatically removed to ensure safe operation.
28. Fully enclosed structure, good protection performance, can adapt to all-weather requirements.
29. The valve is provided with indicator lever or observation window to indicate the opening and closing condition of the valve.