Pneumatic control valve, pneumatic control valve equipment,,,,

Pneumatic control valve is usually composed of pneumatic actuator and control valve connected, installed and debugged. The installation and debugging of pneumatic control valve is extremely important.

Today, let Hu Yuzhu introduce the installation details and skills of pneumatic control valve to you:

1. During installation, always observe the installation instructions and precautions of pneumatic control valve;

2. The working environment temperature of the regulating valve shall be (-30-+60), and the relative humidity shall not be greater than 95% and 95%;

3. Before and after the control valve, there should be straight pipe sections, the length of which should not be less than 10 times the pipe diameter (10D), so as to avoid the short straight pipe section of the valve affecting the flow characteristics;

4. Please read the instruction before installing the valve. The user manual introduces the product, as well as the safety precautions and preventive measures that should be paid attention to before and during installation;

5. Make sure that the pipeline is clean: foreign objects in the pipeline may damage the sealing surface of the valve, even hinder the movement of the valve core, ball or butterfly plate, resulting in the valve not being closed correctly. In order to reduce the possibility of dangerous situations, it is necessary to clean all pipes before installing valves.

Confirm that pipeline dirt, metal chips, welding slag and other foreign bodies have been removed. In addition, check the pipe flange to ensure that the gasket surface is smooth. If the valve has a threaded end, apply advanced pipeline sealant to the external thread of the pipeline. Do not apply sealant to the internal thread, because the excess sealant on the internal thread will be squeezed into the valve body. Too much sealant will cause plug or dirt accumulation, resulting in abnormal valve closure;

6. We carefully check the control valve: before installation, check and remove all covers, protective plugs or washers on the transportation stop surface, and check the inside of the valve body to ensure that there are no foreign objects;

7. The control valve should be installed on the horizontal pipeline, vertical to the pipeline, and generally supported below the valve to ensure stability and reliability. For special occasions, when the control valve needs to be installed horizontally on the vertical pipeline, it should also support the control valve (except for small-diameter control valves). When installing, avoid bringing extra stress to the control valve);

8. Ensure that there is enough space at the top and bottom of the valve, so that the actuator or spool can be easily disassembled during inspection and maintenance. For flanged bodies, ensure that the flange faces are precisely aligned so that the gasket faces are evenly contacted. Century Star introduced that after the flange is centered, gently tighten the bolts, and finally stagger the bolts.