Installation and operation steps of pneumatic control valve
The installation of the pneumatic control valve is different from other valves. It needs a lot of preparations before installation, such as cleaning the pipeline, checking the valve, etc. The following will introduce the installation technology and operation process of the pneumatic control valve in detail, as follows:
1. Follow the installation instructions and attention points of pneumatic control valve;
2. Read the installation and operation manual of the pneumatic control valve:
Before installing the valve, read the instruction manual first. The instruction manual describes the product and the safety precautions and measures that should be paid attention to before and during installation. Following the guidelines in the manual will help ensure an easy and successful installation;
3. Confirm that the pipes are clean:
Foreign matter in the pipeline may damage the sealing surface of the valve or even hinder the movement of the valve core, ball or disc and cause the valve not to close properly;
4. Check the regulating valve:
Before installation, inspect and remove all shipping stops, protective plugs or covers on the gasket surface, and inspect the inside of the valve body to ensure that there are no foreign objects;
5. Adopt good piping practice:
Most pneumatic control valves can be installed in any position, however, the usual method is to place the actuator vertically and on the upper part of the valve. If the actuator is mounted horizontally, consider adding an additional vertical support to the actuator. Make sure that the valve body is installed so that the fluid flows in the direction indicated by the flow arrow or instruction manual;
6. Make sure there is enough space above and below the valve to easily remove the actuator or spool during inspection and maintenance. Spatial distances can usually be found on the dimensional drawings identified by the valve manufacturer. For flanged bodies, ensure that the flange faces are properly aligned for even gasket surface contact. After the flanges are centered, lightly tighten the bolts in a staggered pattern.
Keep connection distances short and minimize the number of fittings and elbows to reduce system time lag. If the distance is long, then a positioner or booster can be used on the pneumatic control valve.