A gate structure: gate valves is refers to the gate closed valve along the pathway of the center line of the vertical direction. Generally by the valve body, valve seat, valve stem, disc, valve cover, sealing ring of a few parts, can through the transmission device and gate valves equipped with can convert the diversified electric gate valves with pneumatic gate valve, can only be fully open and close cut in line, not to adjust and throttling. Gate valve working principle: the gate of the ram as a straight line with the stem, usually in the lifting lever on the trapezoidal thread, through the valve at the top of the nut and guide groove on the valve body, the rotary motion to linear motion, which is the operating torque thrust into operation. Gate valve is closed, sealing surface can only rely on medium pressure to seal, that depend on medium pressure, the disc will be to the other side of the valve seat sealing surface pressure to ensure that the seal face seal, this is the seal. Most is adopt compulsory seal gate valve, the valve is closed, to rely on outside force forced the ram pressure to the seat, to ensure the sealing surface sealing. When opening the gate Industrial Valves: when the gate hoisting height is equal to valve size 1:1 times, fluid channels open completely, but at runtime, the position cannot be monitored. Actual use, is the stem apex as a sign, that is fixed position, as its full open position. To consider locking phenomenon in a temperature change, usually in the open to the vertex positions, pour 1/2-1 ring back, as the full open position of the valve. The valve fully open position, therefore, according to the location of the damper ( > the trip. When opening the gate valve: when the gate hoisting height is equal to Industrial Valves size 1:1 times, fluid channels open completely, but at runtime, the position cannot be monitored. Actual use, is the stem apex as a sign, that is fixed position, as its full open position. To consider locking phenomenon in a temperature change, usually in the open to the vertex positions, pour 1/2-1 ring back, as the full open position of the Industrial Valves. The valve fully open position, therefore, according to the location of the damper ( > the trip.
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