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Shut-off valve / pneumatic - 1/8 - 1/2", 0.5 - 10 bar | STP series
When using these stop valves mounted on cylinder inlets, a flow of air is allowed only when a pneumatic pilot is present. Bidirectional and unidirectional versions of these valves are available. These valves are generally used as safety valves. All cylinder movement comes to a halt if the pressure drops in the pneumatic pilot.