In-line folding shutter S300

The S300 overpressure line shut-off valve (OPSS) protects gas installations, especially polyethylene pipes, from hazardous overpressure conditions and can be installed before or after the first stage regulator (for installation diagrams, see page). Versions with internal or external pulse are available. When the pressure increases above a predetermined value, the trigger mechanism is activated and the valve shuts off the gas supply. A reset can only be achieved manually. The S300 can be used with natural gas, liquefied gas and produced gases and can be mounted in any orientation.