Failure to install regulating valves that do not meet requirements can result in significant waste. Conversely, proper installation can ensure normal operation and extend their service life. Reduce maintenance workload and achieve good system control performance.

(1) The installation of regulating valves should generally consider the following aspects:

① Safety: The safety of personnel and equipment during the installation process.

② Control performance: The pressure loss of the piping system should be consistent with the pressure loss considered when calculating the size of the regulating valve to ensure the required flow characteristics. Import and export should strive to ensure sufficient straight pipe sections.

③ Installation location: There should be sufficient space for manual operation by operators (including bypass operation) and the possibility of on-site disassembly and maintenance of regulating valves and accessories.

④ Regulating valve group: Generally, bypass valves with shut-off valves are installed in the process piping to form a valve group with regulating valves, in order to meet the needs of continuous operation of equipment. Use a shut-off valve to isolate the regulating valve during maintenance. Adjust with a bypass valve.

(2) On site installation

The installation personnel should first recognize that the regulating valve is a precision instrument and equipment, and should not collide or fall to avoid damage. Please pay specific attention to the following points:

① It is best to install the valve upright and vertically on the pipeline. In situations where the valve has a large self weight and there is vibration, a support frame should be added.

② The valve body should avoid being subjected to excessive stress due to significant differences in axis between the front and rear piping or the flanges being adjusted.

③ Before the initial start of work and after shutdown maintenance, the piping system should be flushed first before installing the regulating valve. Or install a transition filter in front of the valve.

④ The regulating valve must be installed according to the arrow indicating the flow direction on the valve body.