1 The installation position of the pneumatic control valve must be at a certain height from the ground, and a certain space must be left above and below the valve to facilitate the disassembly and repair of the valve. For the regulating valve equipped with a pneumatic valve positioner and a hand wheel, it must be ensured that it is easy to operate, observe and adjust.
2. The regulating valve should be installed on a horizontal pipeline, and vertical to the pipeline up and down. Generally, it should be supported under the valve. For special occasions, when the regulating valve needs to be installed horizontally on a vertical pipeline, the regulating valve should also be supported (except for small-diameter regulating valves). When installing, avoid adding additional stress to the regulating valve.
3. The working environment temperature of the regulating valve should be (-30--+60) relative humidity not more than 95%
4. There should be straight pipe sections at the front and rear positions of the regulating valve, with a length not less than 10 times the pipe diameter (10D), to avoid that the straight pipe of the valve is too short and affects the flow characteristics.
5. When the caliber of the regulating valve is different from that of the process pipeline, a reducer pipe should be used for connection. When installing the small-diameter regulating valve, threaded connection can be used. The fluid direction arrow on the valve body should be consistent with the fluid direction
6. To set up a bypass pipe. The purpose is to facilitate switching or manual operation, and the valve can be adjusted for maintenance without stopping
7. Before installing the regulating valve, thoroughly remove the foreign matter in the pipeline, such as dirt, welding slag, etc.