Bermad Pressure Sustaining Valve

Bermad Pressure Sustaining Valves are used to maintain upstream pressure. A common example of this is on the outlet of pumps. This is to prevent the pump operating off its curve when it does not have any back pressure which can occur when filling empty pipelines.

Bermad Electric Valves come in a range of models. The following is a brief summary of the models used in mining applications. The 400 Series is the most common:
  • 400 Series: Coated Iron, PN16, 40mm - 80mm threaded, 50mm to 400mm flanged
  • 100 Series: Glass-Filled Nylon, PN10, 40mm - 80mm threaded, 80mm to 150mm flanged
  • 300 Series: Glass-Filled Nylon head (body material depends on size), PN10, 40mm - 80mm threaded
  • 700 Series: Coated Iron, PN16 & PN25, 40mm - 80mm threaded, 50mm to 500mm flanged

If you have a particular application you would like us to discuss, require project pricing or would like more information on any of the products in this section then please send an email to