Bellows type pressure reducing valveProduct Overview:
Bellows pressure reducing valve is a kind of bellows mechanism to drive the valve disc lifting movement of the direct action bellows type pressure reducing valve, it uses the bellows sensing valve downstream pressure to drive the valve disc, change and control the valve disc opening, so that the medium pressure after the valve is kept within a certain range, to achieve the function of pressure reduction and stabilization, when the outlet side pressure increases, the bellows move upward, the valve opening decreases, the flow rate increases, the pressure drop increases, the pressure behind the valve decreases, when the pressure on the outlet side drops, the bellows moves downward, and the valve opening increases. The flow rate decreases, the pressure drop decreases, and the pressure behind the valve increases, while the outlet pressure behind the valve always maintains a constant pressure set by the setting adjustment screw. This product is especially suitable for steam, gas and liquid pipelines with a temperature of less than 200 °C. The working principle of the bellows pressure reducing valve
The bellows pressure reducing valve is mainly through the valve front of the imported medium pressure from the valve disc and the valve body sealing ring to open the gap into the body cavity so that the medium pressure flows full of the bellows combination box, the bellows and the spring are compressed due to the extrusion of the medium pressure, the valve disc with the valve stem displacement, the valve disc produces the closure of the valve body sealing ring, the medium in front of the valve is cut off, and the medium pressure behind the valve is not supplemented, and when the medium pressure behind the valve is reduced, the bellows is deformed due to the radial force of the adjusting spring, and the valve stem pushes the valve disc open. The reduction of the pressure after the valve is supplemented by the passing of the medium through the sealing ring of the valve body. The pressure regulation and stabilization actions of this product are sensitive and balanced, and the balance bellows can safely balance the pressure difference on the main valve disc, and is equipped with a downstream pressure sensing hole to make the valve disc action more stable.
Bellows type pressure reducing valveTechnical Specifications:
Bellows type pressure reducing valvePart Material:
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