The correct installation technology of pneumatic control valve shall always comply with the installation instructions and points of attention of the manufacturer of the pneumatic regulating valve.Here is a brief summary of typical installation instructions.

Installation instructions for pneumatic control valve are as follows:

1. Read the instruction manual before installing the pneumatic control valve.The instruction manual describes the product as well as safety precautions and preventive measures to be taken before and during installation.Following the instructions in the manual helps ensure a simple and successful installation.

2. Confirm that outside matter in the pipeline cleaning may damage the sealing surface of the pneumatic control valve or even hinder the movement of the control valve core, ball or disc, resulting in the valve not being properly closed.To minimize the possibility of hazardous conditions, clean all piping before installing pneumatic control valves.Verify that pipe dirt, metal debris, welding slag and other foreign material have been removed.Also, check the pipe flange to ensure a smooth gasket surface.If the air control valve has threaded ends, apply a high grade pipe sealant to the pipe male thread.Do not apply sealant to female threads, as excess sealant on female threads will be squeezed into control valve body.Excess sealants can lead to accumulation of plug or dirt in the spool, which in turn causes the valve to fail to close properly.

3 Check pneumatic control valve, although control valve manufacturers take certain steps to prevent transportation damage, such damage is possible and can be detected and notified before installation.Do not install pneumatic control valve that are known to have been damaged during transportation and storage.Before installation, check and remove all transportation block, protective cover or cover on the gasket surface, and check inside the control valve body to make sure there is no foreign body.

4. Pneumatic control valve can be installed in almost any position with good pipe connection practice, but the most commonly used method is to place the actuator vertically at the top of the valve.If horizontal mounting of the pneumatic control valve actuator is necessary, consider adding an additional vertical support to the actuator.Be sure to install the body so that the flow direction is the same as that indicated by the flow direction arrow or instruction manual.

5. Make sure there is enough space above and below the pneumatic control valve for easy removal of actuator or spool during inspection and maintenance.The space distance can usually be found on the profile dimensions determined by the manufacturer of the pneumatic control valve.For flanged valve bodies, ensure that the flange faces are precisely aligned so that the gasket surface is in uniform contact.After the flange pair is centered, gently tighten the bolts and finally tighten them in a staggered manner.

Proper tiling prevents uneven pad loads and helps prevent pneumatic control valve leakage, as well as the possibility of flange damage or even cracking.This precaution is especially important when the joint flange and valve flange are of different materials.The pressure tube mounted upstream and downstream of the pneumatic control valve helps to check the flow rate or pressure drop.Connect the pressure tube to a straight section away from the elbow, reducing or expanding.This position minimizes inaccuracy due to turbulent flow.Connect the pressure interface on the actuator to the controller using 1/4 or 3/8 inch (6-10mm) pipe.Keep short connection distance and minimize the number of pipe fittings and elbow to reduce system time lag.If the distance must be long, a positioner or supercharger can be used on the pneumatic control valve.