A pneumatic piston cut-off valve is a type of quick-closing valve, typically used in pipeline systems transporting flammable and explosive media such as oil and gas. Here are the major industries where pneumatic piston cut-off valves are applied.
In case of emergencies, the main valve will shut off the pipeline rapidly to prevent accidents, thus playing a vital role in safety protection. Pneumatic piston cut-off valves are installed at the outlets of air storage tanks or pipelines, enabling quick closure when emergencies occur.
As normally-open, pulse-triggered solenoid valves, pneumatic piston cut-off valves feature a simple structure, high sensitivity, reliable operation, accident self-locking, and manual reset functions. These advantages have led to their wide application across various industries, mainly in the following aspects:
- Pneumatic piston cut-off valves can be connected to flammable gas leakage detectors. When the detectors detect gas leaks, the valves will automatically and rapidly close the main gas supply valve to cut off gas supply, preventing the occurrence of severe accidents in a timely manner.
- Pneumatic piston cut-off valves can be linked to the limit temperature (or pressure) safety controllers of thermal equipment. When the temperature or pressure at the detection points of the equipment exceeds the set limit values, the valves will automatically and rapidly close the fuel supply valve to stop fuel delivery.
- Pneumatic piston cut-off valves can be integrated with the central fire-fighting leakage detection systems of high-rise buildings. In the event of a fire in the building, the gas supply within the building will be cut off automatically to prevent the escalation of accidents.
