We offer Low Pressure Loss Changeover Valves.Features BenefitsStarvalve RS Type is used to couple pressure Safety Relief Valves. Two designs are available : the "single way" and the "dual way". The unique design of this changeover valve allows a pressure loss below three percents; this is the requirement from the ASME and API to avoid pressure safety valve chattering. Design ASME B16.34ASME B16.5 or EN1759-1 or EN1092-1 Flange DrillingsSizes : inlet 2" to 12" - outlet 1" to 8"Set Pressure range : up to 100 bargTemperature range : -196C to +427CMaterials : Carbon, Alloy or Stainless Steels Approvals CE marking PED 9723ECCE marking ATEX 944ECISO 9001ISO 14001SELORostechnadzor