The S300 in-line over pressure slam shut (OPSS) unit protects gas installations, especially polyethylene pipework, from potentially dangerous over pressure situations. The unit can be fitted before or after the first stage regulator. Versions are available with either internal or external impulse. When the pressure increases above the predetermined set pressure, the OPSS unit trigger mechanism operates and the valve shuts off the gas supply. Resetting of the unit can only be achieved manually Maximum inlet pressure 20 bar Pressure trip off range 0.5 - 4 bar
Suitable for LPG only
£ 48.10
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