Pay attention to the following items when installing the pneumatic diaphragm regulating valve:
(1) The installation position of the pneumatic diaphragm control valve shall be at a certain height from the ground, and a certain space shall be reserved at the top and bottom of the valve to facilitate the disassembly and repair of the valve. For control valves equipped with pneumatic valve positioners and hand wheels, easy operation, observation and adjustment must be ensured.
(2) The pneumatic diaphragm control valve shall be installed on the horizontal pipeline and perpendicular to the pipeline. Generally, it shall be supported under the valve to ensure stability and reliability. For special occasions, when the control valve needs to be installed horizontally on the vertical pipeline, the control valve should also be supported (except for small caliber control valve). During installation, avoid bringing additional stress to the regulating valve).
(3) The operating ambient temperature of pneumatic diaphragm control valve shall be no more than 95% and 95% respectively at (- 30~+60) relative humidity.
(4) The front and rear positions of the pneumatic diaphragm control valve shall be equipped with straight pipe sections whose length shall not be less than 10 times of the pipe diameter (10D) to avoid that the straight pipe section of the valve is too short and affects the flow characteristics.
(5) When the diameter of the pneumatic diaphragm control valve is different from that of the process pipe, the reducing pipe shall be used for connection. When installing small diameter control valve, thread connection can be used. The fluid direction arrow on the valve body shall be consistent with the fluid direction.
(6) The bypass pipe shall be set. The purpose is to facilitate switching or manual operation, and the regulating valve can be overhauled without shutdown.
(7) Before installation of pneumatic diaphragm regulating valve, completely remove the foreign matters in the pipeline, such as dirt, welding slag, etc.

The output rotation speed of the electric ball valve is also one of the factors that need to be considered. If the opening and closing speed of the valve is too fast, it may lead to the impact of water flow. Therefore, we need to consider different use environments and conditions when selecting the specific configuration, and select the correct opening and closing speed.