Pneumatic control valve installation principle and precautions for use
2021-07-02 14:05:12
Pneumatic control valve features:
The control simple response is fast and intrinsically safe, and no additional explosion-proof measures are required.
Pneumatic control valve installation principle:
(1) The installation position of the pneumatic regulating valve is required to have a certain height from the ground. There must be a certain space above and below the valve for the disassembly and repair of the valve. For regulating valves with pneumatic valve positioners and handwheels, operation, observation and adjustment must be guaranteed.
(2) The regulating valve should be installed on the horizontal pipe and vertically above and below the pipe. It should be supported under the valve to ensure stability and reliability. For special occasions, when the regulator valve is to be installed horizontally on a vertical pipe, the regulator valve should also be supported (except for small diameter regulators). Avoid additional stress on the regulator when installing.
(3) The working environment temperature of the regulating valve should be at (-30 ~ +60) relative humidity not greater than 95% 95%, relative humidity not greater than 95%.
(4) The front and rear positions of the regulating valve shall have a straight pipe section with a length of not less than 10 times the pipe diameter (10D) to avoid the straight pipe section of the valve being too short to affect the flow characteristics.
(5) When the diameter of the regulating valve is different from the process piping, it should be connected by a different diameter pipe. When the small diameter regulator valve is installed, it can be screwed. The fluid direction arrow on the valve body should match the direction of the fluid.
(6) Set the bypass pipe. The purpose is to facilitate switching or manual operation, and the control valve can be repaired without stopping.
(7) The regulating valve should completely remove foreign matter in the pipeline, such as dirt and welding slag, before installation.
Precautions for storage and installation 1. The valve should be stored in a dry room, and both ends of the passage must be blocked. Do not stack storage 2, long-term storage of the regulating valve should be regularly checked to remove dirt, anti-rust oil should be applied to all moving parts and processing surfaces to prevent rust.
3. The valve should be installed on a horizontal pipe and must be installed vertically. The stem is up.
4. Compulsory installation is carried out according to the direction of the medium flow indicated by the arrow shown.
The control simple response is fast and intrinsically safe, and no additional explosion-proof measures are required.
Pneumatic control valve installation principle:
(1) The installation position of the pneumatic regulating valve is required to have a certain height from the ground. There must be a certain space above and below the valve for the disassembly and repair of the valve. For regulating valves with pneumatic valve positioners and handwheels, operation, observation and adjustment must be guaranteed.
(2) The regulating valve should be installed on the horizontal pipe and vertically above and below the pipe. It should be supported under the valve to ensure stability and reliability. For special occasions, when the regulator valve is to be installed horizontally on a vertical pipe, the regulator valve should also be supported (except for small diameter regulators). Avoid additional stress on the regulator when installing.
(3) The working environment temperature of the regulating valve should be at (-30 ~ +60) relative humidity not greater than 95% 95%, relative humidity not greater than 95%.
(4) The front and rear positions of the regulating valve shall have a straight pipe section with a length of not less than 10 times the pipe diameter (10D) to avoid the straight pipe section of the valve being too short to affect the flow characteristics.
(5) When the diameter of the regulating valve is different from the process piping, it should be connected by a different diameter pipe. When the small diameter regulator valve is installed, it can be screwed. The fluid direction arrow on the valve body should match the direction of the fluid.
(6) Set the bypass pipe. The purpose is to facilitate switching or manual operation, and the control valve can be repaired without stopping.
(7) The regulating valve should completely remove foreign matter in the pipeline, such as dirt and welding slag, before installation.
Precautions for storage and installation 1. The valve should be stored in a dry room, and both ends of the passage must be blocked. Do not stack storage 2, long-term storage of the regulating valve should be regularly checked to remove dirt, anti-rust oil should be applied to all moving parts and processing surfaces to prevent rust.
3. The valve should be installed on a horizontal pipe and must be installed vertically. The stem is up.
4. Compulsory installation is carried out according to the direction of the medium flow indicated by the arrow shown.
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