The Milnes® product range is made from Gunmetal or Brass. Gunmetal is shiny alkaline brass, which is composed of copper and tin. Gunmetal is resistant to corrosion from steam and salt water, and is thus suitable for valves, pump parts and steam fittings.
|Class of Product (PN)||Allowable Operating Pressure - kPa||Maximun Allowable Operating Pressure - kPa||Allowable Site Test Pressure|
Allowable operating pressure
The allowable internal pressure, excluding surge that a component can safetly withstand in service.
Maximum allowable operating pressure
The maximum internal pressure, including surge that a component can safetly withstand in service.
Allowable site test pressure
Maximum pressure applied on site in a newly installed pipeline, includes a safetly factor and allowances for surge.