Safety Devices for Protecting Refrigeration Systems from Excess Pressure
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.
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 |
Gas Powered Overflow Valve type GPV
Ports now compete not just on logistics, but on sustainability. At Greece’s Piraeus port, an advanced processing and recovery facility recycles ship waste oil into fuel. Equipped with GEA’s high-performance centrifuges, it sets a new benchmark for state-of-the-art, environmentally responsible port operations.