1. Installation Environment Control
Pneumatic control valves should be installed in a dry, well-ventilated area with an ambient temperature of -30°C to 60°C and relative humidity ≤95%, avoiding proximity to heat sources such as heating furnaces or high-temperature pipelines. For low-temperature media applications, insulation jackets or electric heat tracing devices are required to prevent condensation on the valve body; in environments with corrosive media, corrosion-resistant materials (such as Hastelloy or titanium alloys) and anti-corrosion coatings must be used.
2. Piping System Compatibility
Before installation, impurities such as welding slag and rust must be thoroughly removed from the pipeline to prevent jamming or clogging. Straight pipe sections upstream and downstream of the control valve should be at least 10 times the pipe diameter in length to ensure stable fluid flow. If the valve size differs from the pipe size, reducers must be used for the connection; threaded connections may be used for small-bore valves, provided that unions are installed to facilitate maintenance.
3. Support Structure Reinforcement
For vertical installations, an independent support bracket must be provided beneath the valve, with the support point located no more than 300 mm from the bottom of the valve body. When installed horizontally on a vertical pipeline, U-bolts must be used for fixation to prevent valve body deformation caused by the weight of the medium. A dual-point support structure is recommended for large-bore valves (DN ≥ 200).