GPV Gas-Powered Valves

Valves to drain the oil collection container into the oil return circuit.

GPVs are designed for installation in the oil return line between the lowest point of the flooded evaporator and the compressor. By design the valves are kept open by a compressing spring so the oil-refrigerant mixture runs into the oil reservoir. Once filled, hot-gas pressure which is inserted by a connector on the cover, closes the GPV and concurrently increases the pressure on the reservoir via an overflow bore. This pressure is used to impel the collected oil back to the compressor and thus to drain the oil collection container.

  • Available in steel or stainless steel
  • Selection of body material as per German DIN EN12284, AD2000 Series W
  • Working mediums: refrigerants as per EN 378 p. 1, e. g. NH3, R134a, R290 (propane), R507 and blends with refrigerator oil; neutral, gaseous and liquid mediums; glycol-based cold brine
  • Installation position: vertical and horizontal

GPV Gas-Powered Valves

straightway or angle type


steel or stainless steel

Nominal Size

DN 25-32

Nominal Pressure Level

PS 40

Temperature Range for Standard Valves

-60 °C to +180 °C

Temperature Range for HT Valve Series

-10 °C to +200 °C


butt welding ends as per DIN, ANSI

Get in touch

Armaturenstr. 2
17291 Prenzlau

Phone: +49 3984 8559-0
Fax: +49 3984 8559-18