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Pneumatic Straight Travel Actuator Valve Manufacturer

Pneumatic Straight Travel Actuator Valve

Pneumatic globe valve belongs to the forced sealing valve, pneumatic valve closed, must apply pressure to the disc, in order to force the sealing surface does not leak.

When the medium enters the disc from below the disc, the resistance that the operating force needs to overcome, is the friction force of the stem and packing and the thrust generated by the pressure of the medium, the force of closing the valve is greater than that of opening the valve, so the diameter of the stem should be large, otherwise the failure of stem top bending will occur.   

The medium flow direction of the globe valve is changed from above the disc into the valve chamber, under the action of the medium pressure, the force of closing the valve is small, and the force of opening the valve is large, the diameter of the stem can be correspondingly reduced.   At the same time, under the action of the medium, this form of valve is also more stringent.

 

Pneumatic-Straight-Travel-Actuator-Valve--(5) Pneumatic-Straight-Travel-Actuator-Valve--(6)

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