@tinks wrote:
IG-541 (Inergen) is an inert gas comprising of 50% Nitrogen, 42% Argon & 8% Co², it is naturally present in the atmosphere, therefore its green-house effect is nil and its ozone layer depletion potential is zero. It is chemically inert, non-conductive, colourless, odourless and flavourless. IG-541 (Inergen) is non-corrosive and may be used at normal temperatures with such materials as nickel, steel, stainless steel, copper, brass, bronze and plastics.
Well I never :lol:
The Fig 542 is of gunmetal construction, with diaphragm protected working parts and PTFE to metal seating. All wetted parts are manufactured from dezincification resistant materials, approved by the Water Research Centre for use on potable water. Inlet and outlet connections are of equal size, with female threads to BS 21. Sizes from DN32 upwards are also available with flanged inlet connections. For other specific technical requirements consult the NABIC technical department.