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Precautions for use and installation of regulating valves

放大word体  缩小word体 Release date:2018-09-10  Views:47
Core Tip:The 1. regulating valve should be cleaned before installation, such as pipeline dirt, rust proof grease and welding slag


The 1. regulating valve should be cleaned before installation, such as pipeline dirt, rust proof grease and welding slag. After installation, the valve should be in the maximum opening to the pipe, the valve is cleaned and the seal of each connection is tested so as to avoid the stagnation or the spool and valve seat.

2. should be installed near the ground or floor to facilitate maintenance and maintenance; for semi - equipped valve locator or handwheel mechanism, the convenience of observation, adjustment and operation should be ensured.

3. when installing, the flow direction of the medium should be consistent with the direction of the arrow on the valve body.

4. installation should avoid adding additional stress to the regulating valve so as to avoid the deformation and breakage of the regulating valve flange due to temperature or weight. When the regulating valve is installed in a long area of the pipe, the supporting frame should be installed, especially in the case of violent vibration. The installation of large caliber control valve should avoid inclining, prevent mechanical wear and packing leakage of valve parts, so we should pay special attention to this.

5. for safety reasons, the bypass valve should be added to the pneumatic control valve (important occasion) so as to stop the production of the valve when it fails or repairs.

6. when the handwheel mechanism is installed, the valve can be operated manually, and it can also be used to limit the opening of the valve. When using automatic control, the handwheel mechanism must be placed in neutral position.

7. for high temperature valves, grease should be injected into the filling part every three months.

 
 
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