- Size: NPS 2"～36" DN50～DN1000
- Pressure Rating: Class 150～2500 PN2.5~PN160
- Connection: RF, BW, RTJ,SW and so on Body Material: CS, SS, ALLOY，WCB, LCB, CF8, CF8M, CF3, CF3M, A105, LF2, F304, F316, F304L, F316L and so onSeat material: CS+PTFE, SS+PTFE
- Design and Manufacture: API6D API, ISO14313
- Test and Inspection: API6D; ISO 5208Pressure-temperature ratings: ASME B16.34
- Face-to-Face: ASME B16.10, BS EN558
- End Connection: ASME B16. 5（for NPS≤24）; ASME B16.47 series B、API 605 or ASME B16.47 series A、MSS SP-44（for NPS＞24）; BS EN1092-1BW
- Operation Method: Manual, Worm Gear, Electro Actuator, Pneumatic Actuator
- HS code: 8481804090
The flat gate valve is a sliding valve whose gate is a parallel gate. The shutter can be a single shutter plate or a double shutter plate with a deployment mechanism in between.
The push force of the gate to the valve seat is controlled by the pressure of the medium acting on the floating gate or floating valve seat. If the flat gate valve is a dual shutter flat gate valve, the spreading mechanism seen in the two shutters can compensate for this pressure.
1. The valve seat adopts the floating valve seat structure with o-ring sealing and pre-tightening force, and the inlet and outlet of the flat gate valve are sealed in both directions; in addition, the switching torque of this structure is 1/2 of that of the ordinary valve, and the valve can be easily opened and closed.
2. When the flat gate valve is fully opened, the channel is smooth, the flow resistance coefficient is extremely small, and there is no pressure loss, and the pipeline can be cleaned with a hair ball
3. The filling material structure with self-sealing ability is adopted, which does not need to be adjusted frequently, the switch is extremely light, and the sealing performance is reliable. The auxiliary sealing grease injection structure is set at the filling material, the sealing performance is absolutely reliable, and zero leakage is truly achieved; It solves the disadvantage that the general valve packing is most likely to leak.
4. When the flat gate valve is closed, the high pressure in the inner cavity can be automatically eliminated, which is convenient to use.
5. The fully enclosed structure has good protection performance and can meet all-weather requirements.
