Safety Devices for Protecting Refrigeration Systems from Excess Pressure
GPV GAS-POWERED VALVES
GEA 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.
Gas Powered Overflow Valve type GPV
Technical Features
- 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 | |
| material | steel or stainless steel |
| nominal size | DN 25-32 |
| nominal pressure level | PS 40 |
| temperature range
for standard valves | -60 °C to +150 °C |
| temperature range for
HT Valve Series | -10 °C to +200 °C |
| connection | butt welding ends as per DIN and ANSI |
Downloads
Service Products
GEA Ammonia Dryer
The GEA Ammonia Dryer removes water from the refrigerant cycle and makes the perfect addition to ammonia refrigeration systems along with filters and purgers.
PR-OLEO® Premium-Quality Ammonia Refrigeration Oils
PR-OLEO® ammonia oils are the natural choice to optimize industrial cooling and heating applications operating with reciprocating or screw compressors.
GEA Service Kits for screw and reciprocating compressors
Welcome to the world of simplicity with GEA Service Kits for screw and reciprocating compressors. Our mission is clear - to make your experience with original spare parts seamless and your operations smoother than ever. "Take it easy, use a kit" is not just a tagline – it is a promise we deliver on.
GEA Insights
From milking bucket to robot: 100 years of farm innovation at GEA
For more than 100 years, GEA has developed technologies for dairy farming – from the first bucket milking machines to autonomous, digitally connected systems. These innovations have fundamentally transformed dairy farming: away from labor-intensive routines, toward greater productivity, animal welfare and more efficient day-to-day operations.
