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Zhejiang Gaochuan Machinery Technology Co., Ltd.

Contact: Xianfeng Xie 

Mobile: 13917223303

E-mail: 49453698@qq.com

Address: No. 66, Zhen'anjiang Road, Jianshan New District, Haining City, Jiaxing City, Zhejiang Province

web:en.gcvat.com

The main performance of flange pressure reducing valve

2021-03-31 11:13:45
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This valve is suitable for water, steam, and air medium pipelines. The inlet pressure is reduced to a certain required outlet pressure by adjustment. When the inlet pressure and flow change, the outlet pressure is automatically maintained within a certain range by the energy of the medium itself. But the difference between inlet pressure and outlet pressure must be ≥0.2MPA/CM


Working principle and structure


When the pressure reducing valve leaves the factory, the adjusting spring is in an uncompressed state. At this time, the main valve disc and the auxiliary valve disc are in the closed state. When using, turn the adjusting screw clockwise to compress the adjustment spring to move the diaphragm against the auxiliary valve disc. From hole a through the auxiliary valve seat to hole b, it enters above the piston. Under the action of the medium pressure, the piston moves downward to push the main valve disc away from the main valve seat, so that the medium flows to the back of the valve. At the same time, it enters below the diaphragm from hole c. When the pressure behind the valve exceeds the set pressure, the diaphragm is pushed up to move the compression regulating spring, and the auxiliary valve flap moves in the closing direction, so that the medium flowing into the upper part of the piston decreases, and the pressure also follows At this time, the main valve disc moves up and down under the push of the main valve disc spring force, so that the gap between the main valve disc and the main valve seat is reduced, and the medium flow rate is also reduced, so that the pressure after the valve also drops to The new balance, on the contrary, when the pressure after the valve is lower than the set pressure, the gap between the main valve disc and the main valve seat increases, and the medium flow also increases, so that the pressure after the valve also increases to the new balance.


Precautions


Handwheels, handles and transmission mechanisms are not allowed to be used for lifting, and collisions are strictly prohibited.


The double gate valve should be installed vertically (that is, the valve stem is in the vertical position and the handwheel is on the top).


The gate valve with a bypass valve should be opened before opening (to balance the pressure difference between the inlet and outlet and reduce the opening force).


The gate valve with transmission mechanism shall be installed in accordance with the provisions of the product manual.


If the valve is frequently opened and closed, lubricate at least once a month.


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Contact us

Phone: 139-1722-3303

QQ: 49453698

Email: 49453698@qq.com

Address: No. 66, Zhen'anjiang Road, Jianshan New District, Haining City, Jiaxing City,
Zhejiang ProvinceWebsite: www.gcvat.com

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