Automatic-control constant-pressure throttling valve
A technology of throttle valve and inlet pressure, applied in valve details, safety valve, balance valve, etc., can solve the problems of automatic take-off and excessive pressure change of safety valve.
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[0026] Example 1
[0027] A self-control constant pressure throttle valve, comprising a valve body 1 and an actuator. The actuator comprises a cylinder 2, a cylinder head 3, a piston 5, a pressure pipe 6 and an elastic element. The cylinder 2 is fixedly arranged on the valve Above the main body 1, the cylinder head 3 is fixed on the upper part of the cylinder body 2, the piston 5 is movably arranged in the cylinder body 2, and the lower part of the piston 5 is fixed on the valve stem 19 of the valve body 1, and the elastic element is fixedly arranged Between the cylinder 2 and the valve main body 1, and the elastic element is fixedly connected with the piston 5; the pressure taking end of the pressure taking pipe 6 communicates with the output end 20 of the valve main body 1, and the pressure taking end of the pressure taking pipe 6 Set above the piston 5 in the cylinder 2; when the pressure at the output end 20 of the valve body 1 increases, the medium pressure is transmitted to...
Example Embodiment
[0034] Example 2
[0035] A self-control constant pressure throttle valve, comprising a valve body 1 and an actuator. The actuator comprises a cylinder 2, a cylinder head 3, a piston 5, a pressure pipe 6 and an elastic element. The cylinder 2 is fixedly arranged on the valve Above the main body 1, the cylinder head 3 is fixed on the upper part of the cylinder body 2, the piston 5 is movably arranged in the cylinder body 2, and the lower part of the piston 5 is fixed on the valve stem 19 of the valve body 1, and the elastic element is fixedly arranged Between the cylinder 2 and the valve main body 1, and the elastic element is fixedly connected with the piston 5; the pressure taking end of the pressure taking pipe 6 communicates with the output end 20 of the valve main body 1, and the pressure taking end of the pressure taking pipe 6 Set above the piston 5 in the cylinder 2; when the pressure at the output end 20 of the valve body 1 increases, the medium pressure is transmitted to...
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