| Customization: | Available |
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| Media: | Gas, Oil, Water, Chemical |
| Temperature: | Low Temperature |
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Flat gate valve is a kind of sliding valve whose closing part is parallel gate. The closing part can be a single shutter or a double shutter with a spreading mechanism between them. The pressing force of the gate to the valve seat is controlled by the medium pressure acting on the floating gate or the floating valve seat. If it is a double-gate flat gate valve, the spreading mechanism between the two gates can supplement this pressing force.
Flat gate valve can be divided into manual flat gate valve, pneumatic flat gate valve and electric flat gate valve according to the driving mode. According to the use and occasion, it can be divided into flat gate valves with diversion holes, flat gate valves without diversion holes, flat gate valves in oil fields, flat gate valves in pipelines and flat gate valves in gas.
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.
Electric gate valve: An electric gate valve uses an electric motor instead of a handwheel. By utilizing electrical power, the actuator spins the stem to raise or lower the gate. This allows it to be operated remotely with no user on-site but requires electrical power on-site. These are also referred to as motorized gate valves.
A gate valve operates similar to other valves. To open the valve, turn the handwheel (A), which moves the gate (G) up or down on the stem (B) via the threads. A gate valve requires more than one 360° turn to open or close the valve fully. When the gate is lifted up, it opens the inlet to the outlet allowing an unobstructed passageway for the media to flow. When the gate is lowered, it closes and blocks the media flow.
The relationship between the gate's vertical travel and the flow rate is nonlinear for a gate valve, with the greatest changes occurring near-complete closure. When used to regulate flow, the relatively high velocity of the flow at partial opening results in gate and seat wear, which along with possible vibrations of the gate, shortens the valve's service life. Therefore, a gate valve should only be used for on/off control.
1.class150~900/pn1.0~16.0MPa (working temperature is -29~121ºC) oil and natural gas transmission pipeline. The flat gate valve with pilot port also facilitates cleaning of the line.
2. Refined oil transportation line and storage and transportation equipment.
3. Oil and natural gas extraction wellhead devices, that is, valves for oil extraction machines.
4. The flat gate valve has piping for the medium of suspended particles.
5. City gas pipeline.
6. Water works
| No. | Parts Name | Material |
| 1 | Body | A216 WCB |
| 2 | Seat Ring | A105+13Cr |
| 3 | Wedge | A216 WCB+13Cr |
| 4 | Stem | A182 F6 |
| 5 | Bonnet Bolt | A193 B7 |
| 6 | Bonnet Nut | A194 2H |
| 7 | Gasket | SS304+Graphite |
| 8 | Bonnet | A216 WCB |
| 9 | Bock seat bushing | A182 F6 |
| 10 | Stem packing | Graphite |
| 11 | Gland | A182 F6 |
| 12 | Gland flange | A216 WCB |
| 13 | Gland Nut | A194 2H |
| 14 | Pin | 45 |
| 15 | Gland Eyebolt | A193 B7 |
| 16 | Yoke | A216 WCB |
| 17 | Stem Nut | ZCuA110Fe3 |
| 18 | Oil Cup | |
| 19 | Bearing | |
| 20 | Retaining Nut | AISI 1035 |
| 21 | Handwheel | Ductile Iron |
| 22 | H.W.Lock Nut | AISI1035 |
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