Flat gate valve is a sliding valve with a parallel gate as the closing element. The closing component can be a single gate or a double gate with a supporting mechanism between them. The clamping force between the gate and the valve seat is controlled by the medium pressure acting on the floating gate or floating valve seat. If it is a double gate flat gate valve, the opening mechanism between the two gates can supplement this clamping force.
characteristic
1. The valve seat adopts an O-ring seal and a floating valve seat structure with pre tightening force applied, which makes the inlet and outlet of the flat gate valve sealed in both directions; And the opening and closing torque of this structure is only half of that of a regular valve, which can easily open and close the valve.
2. When fully open, the channel is smooth in a straight line, with minimal flow resistance coefficient and no pressure loss, and can be cleaned by a capillary ball.
3. Adopting a packing structure with self sealing ability, without the need for frequent adjustment, the opening and closing are extremely lightweight, and the sealing performance is reliable. There is an auxiliary sealing grease injection structure at the packing box, which ensures reliable sealing performance and truly achieves zero leakage; Solved the problem of leakage at the packing of general valves.
4. When the flat gate valve is closed, it can automatically remove the high pressure inside the chamber to ensure use.
5. Fully enclosed structure, good protective performance, and can adapt to all weather requirements.
Applicable occasions for flat gate valves
1. (Class150~900/PN1.0~16.0MPa, working temperature -29~121 ℃) Oil and natural gas transmission pipelines. The flat gate valve with a guide hole is also convenient for cleaning pipelines. 2. Transportation pipelines and storage equipment for finished oil products. 3. Wellhead devices for oil and natural gas extraction, also known as Christmas tree valves. 4. Pipes with suspended particles in the medium. 5. Urban gas transmission pipelines. 6. Water supply engineering.
Working pressure ：2000PSI～20000PSI
Nominal bore ：1.13/16″～9″ (46mm～230mm)
Working medium: oil, natural gas, mud, consist of H2S CO2gas
Working temp.：-46℃ ~ 121℃ (LU)
Material：AA、BB、CC、DD、EE、FF、HH
PSL：PSL1～4
PR：PR1～2
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