Gas pressure reducing valve belongs to pilot piston type pressure reducing valve. It is composed of main valve and guide valve. Main valve is mainly composed of seat, main valve disc, piston, spring and other parts. Guide valve is mainly composed of seat, disc, diaphragm, spring, regulating spring and other parts. The outlet pressure is set by adjusting the spring pressure, the change of outlet pressure is sensed by the diaphragm, and the overcurrent area of the throttled part of the main valve is adjusted by the opening and closing of the guide valve and driving piston, so as to realize the pressure-reducing and pressure-stabilizing function. Gas reducing valve is mainly used in gas pipeline, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases.
Steam pressure reducing valve belongs to pilot piston type pressure reducing valve. It is composed of main valve and guide valve. Main valve is mainly composed of seat, main valve disc, piston, spring and other parts. Guide valve is mainly composed of seat, disc, diaphragm, spring, regulating spring and other parts. The outlet pressure is set by adjusting the spring pressure, the change of outlet pressure is sensed by the diaphragm, and the overcurrent area of the throttled part of the main valve is adjusted by the opening and closing of the guide valve and driving piston, so as to realize the pressure-reducing and pressure-stabilizing function.
The main product is mainly used for steam pipeline, playing the role of pressure reduction and stabilization.
Spring film pressure reducing valve belongs to direct action film spring pressure reducing valve. It is mainly composed of adjusting spring, diaphragm, piston, seat, disc and other parts. The diaphragm is directly sensing the downstream pressure to drive the disc and control the disc opening to achieve the pressure-reducing and pressure-stabilizing function.
In the cold and hot water supply system of urban buildings and high-rise buildings, the spring film pressure-reducing valve can replace the conventional partition water pipe and save equipment. Can also be in the usual hot and cold water pipe network, play the role of decompression and pressure stabilization. The pressure regulating and stabilizing action of this product is stable, suitable for pipeline of water and non-corrosive liquid medium.
Bellows reducing valve for the temperature of 200℃ below the steam, air, water non-corrosive medium on the pipeline, so that the medium pressure through the valve body to keep constant, in order to meet the work needs. The inlet pressure P1 in front of the valve is 1.01-0.1mpa, and the outlet pressure P2 in back of the reducing valve is 0.4-0.05mpa. The pressure difference between the front and back of the valve is not greater than 0.6mpa, nor less than 0.05mpa. The following is its principle and structure
1, medium pressure before the valve imports from disc and body into the coelomic cavity sealing ring opening gap make medium pressure flow with the combination of the corrugated pipe boxes, corrugated pipe and spring from the medium pressure of extrusion and compression, the disc with the displacement of the valve stem, disc from the body sealing ring closure, the valve medium as before, not for the medium pressure valve supplements. When the valve after the media pressure is reduced, bellows due to the adjustment of the spring diameter term force, bellows laminated deformation, the valve stem will disc top open. Make the medium through the body sealing ring to supplement the relief of pressure after the valve.
2, corrugated pipe pressure reducing valve is a valve body, valve cover, valve disc, valve seal, valve stem, corrugated pipe, adjusting spring and other parts, import assembly body cavity has the disc and body sealing ring and auxiliary spring, auxiliary spring is to keep the disc and body sealing ring automatic sealing, export body cavity assembly elastic sealing element (bellows) guarantee after valve leakage of medium pressure and overcome stress non-uniform degree of compensation. Screw is to adjust the spring load pressure relief valve performance.
On 2018-08-08 11:45:46
