What is the impact of thermal insulation pneumatic ball valve on equipment operation? If the valve on the thermal pipeline is not well insulated, it may cause leakage due to uneven thermal expansion and contraction during multiple opening and closing. In winter in cold regions, once the uninsulated valve is closed, the freezing speed of the valve is much higher than that of the valve with good insulation. If the time interval between closing and opening is short, the valve with good insulation will always be closed and opened under hot conditions; However, valves with poor insulation or without insulation may be closed at high temperature and opened at low temperature. High temperature thermal alternation makes valve parts in contact with or close to the medium subject to alternating stress, which aggravates the fatigue aging of valve parts and shortens the service life of the valve. At the same time, the thermal alternation of the medium will also cause the valve seat and guide sleeve (interference fit or threaded connection) to become loose, thus losing the sealing effect.

1. Overview of pneumatic control valve:
The pneumatic control valve uses the compressed gas (usually purified compressed air) as the power source, the cylinder as the actuator, and the power distribution/gas valve positioner, electric/gas converter, solenoid valve, retaining valve, gas tank, gas filtration/pressure reduction/oil mist separator and other accessories to drive the valve according to the actual needs to achieve the regulation goal, Receive the control signal from the industrial automation control system to adjust various process parameters such as flow, pressure, temperature, liquid level, etc.