Safety devices for protecting refrigeration systems from excess pressure
The constant pressure valve with check valve function (RVR) is the successor of the constant pressure valve (RVD). It increases the pressure on the discharge side of the compressor during the start-up phase and open only after the oil circulation is completely secured. This prevents the refrigerant from condensing in case the compressor shuts down. The integration of the check valve function is a new feature compared to the previous constant pressure valve. The RVR is available in diameters of DN40 to DN150, and with optional customer-specific inlet and outlet connections.
RVR Constant Pressure Valves | |
material | steel or stainless steel |
nominal size | DN 40-150 |
nominal pressure level | PS 25, PS 40 |
temperature range | -60 °C to +150 °C |
temperature range for
HT Valve Series | -10 °C to +200 °C |
connection | butt welding and flanged ends as per DIN and ANSI |
set pressure range | 1-9 bar |
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.
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® ammonia oils are the natural choice to optimize industrial cooling and heating applications operating with reciprocating or screw compressors.
Companies like GEA process and store large amounts of sensitive data. However, security incidents, from ransomware attacks to physical intrusions and industrial espionage, are ever-expanding. GEA’s effective protection of its business partners’ data – as well as its own proprietary information – is evolving into a competitive advantage. We spoke with Iskro Mollov, GEA’s Chief Information Security Officer, about what it takes to protect a global business in a volatile world.
Resource-efficient fashion has been a long-sought ambition amid the fashion industry’s considerable contributions to global carbon emissions. The need to close the loop by recycling textile fibers into virgin-like materials is higher than ever but seemed like a distant dream until now: Circ, GEA’s American customer and pioneer in the field of textile recycling, might be rewriting the future of the fashion industry.
Alternative proteins are promising – yet still expensive to produce. The usual response is that scaling up will solve this issue. But what if the solution was really about getting better, not just bigger? From more efficient, high-yield processes to upcycling waste heat, engineers are reshaping how we grow food.