The Spec Masterrange
of pipeline pressure relief valves are designed to fulfil the
Pressure Equipment Directive (PED) 97/23/EC Category IV. Therefore
they are CE marked. This range of pipeline pressure relief valves is
available in conjunction with a Gas-Arc gas control panel or as a
seperate unit with a range of set vent pressures.
They are compatible with non-corrosive or toxic high purity gases up
to grade 6.0 purity (99.9999%).