Pneumatic control valve installation technology

1. Keep the correct installation

Should always comply with the control valve manufacturers installation guidance and attention. Here, for a typical installation guide for simple induction.

2. Read operation manual

After installation of valve between, read the instruction manual. Guide book introduces the products and before installation and installation should pay attention to the safety matters and preventive measures. According to the manual guide to do help to ensure the installation simple and success.

3. Confirm pipeline cleaning

Ducted foreign body may damage to the valve sealing surface or even block valve core, pneumatic ball valve ball or pneumatic butterfly valve butterfly plate movement caused by pneumatic valve can't properly closed. In order to reduce the possibility of dangerous situation, need to install the valve in the pipeline cleaning all before. Confirm the clear dirt pipeline, metal debris, welding slag and other foreign material. In addition, to check the pipe flange to ensure a smooth gasket surface. If the valve screw end connection, the pipeline external thread on the besmear on high grade pipeline sealant. Don't in female besmear on sealant, because in female on redundant sealant will be packed into the body. Redundant sealant can cause valve core card plug or accumulation of dirt, and then lead to the valve can not normally closed.

4. Check valve

Although the valve manufacturers will take some steps to prevent transportation damage, but this kind of damage or are likely to happen, and can before installing discovery and bulletin.

Do not install already know in transportation and storage has been damaged when the valve.

Before installation, check and remove all transportation stop, protective use plug or gasket surface cover, check the inside of the body to ensure there are no foreign body.

5. The good joint practice

Most of the control valve (valve) can be installed in any position, however, the most commonly used method is to actuator vertical place and is located in the upper portion of the valve. If actuators level installation is necessary, is considered for pneumatic actuators adds an extra vertical support. Should ensure that this installation of body: fluid flow and flow direction arrow or guidance to the manual instructions of the direction.

6. Ensure that the top and bottom of the valve with sufficient space in order to check and maintenance easily remove the actuator or valve core

Space distance from the valve manufacturers can usually be that physical size chart find. For flange connection body, ensure flange surface accurately alignment to make gasket surface evenly contact. In the flange to, gently tightening bolt, the staggered form tightening the bolt.

Correctly tightening can avoid uneven gasket load, and help prevent leakage, but also help to avoid the flange damage or even the possibility of a split. When connecting flange and valve flange material is not the same, the preventive measures are particularly important.

Installed on the control valve (valve) to upstream and downstream lead pressure pipe help to check the flow or pressure drop. Will lead pressure pipe received from elbow, reducing or expansion of straight pipe section place. This position will be due to fluid turbulent and cause of the inaccuracy to reduce to the smallest. With a quarter or 3/8 inch (6-10 mm) pipe pressure on the actuator interface connected to the controller. Keep the connection of short distance, and try to reduce the number of elbow fittings and to reduce the system time lag. If the distance must be very long, so can be in control valve (valve) use a locator or supercharger.