Clesse High Pressure OPSO Internally Sensed 3/4 Inch

The Clesse in-line over pressure slam shut (OPSO) unit protects gas installations, especially polyethylene pipework, from potentially dangerous over pressure situations. The unit is fitted after the first stage regulator. When the pressure increases above the predetermined set pressure, the OPSO unit trigger mechanism operates and the valve shuts off the gas supply. Resetting of the unit can only be achieved manually. Suitable for LPG only