Overflow valves independent from back pressure, spring loaded.
UVU OVERFLOW VALVES
GEA overflow valves are designed to be used as relief valves in the refrigerant circulation of industrial refrigerating plants. Overflow valves are safety devices for protecting the refrigerating system or its components from excess pressure (see also DIN 8975 part 7). They open independently from back pressure and close completely within a pressure drop of 10 % below the set response pressure. They comply with the technical regulations of the German Technical Control Board (TÜV).
Overflow Valve type UVU
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
- Available valve seat seals:
- UVUA: PTFE seal, can be used at temperatures of -60 °C to +180 °C
- UVUB: elastomer seal, can be used at temperatures of -50 °C to +110 °C
| UVU OVERFLOW VALVES | |
| material | steel or stainless steel |
| nominal size | DN 10-32 |
| nominal pressure level | PS 25, PS 40, PS 63 |
| temperature range | UVUA: -60 °C to +180 °C
UVUB: -50 °C to +110 °C |
| temperature range for
HT Valve Series | -10 °C to +200 °C |
| connection | butt welding and flanged ends as per DIN and ANSI
brazed ends threaded ends |
| response pressure range | 4-63 bar |
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.
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.
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 Insights
Chilling Danish pastries with purpose
German pastry specialist Wolf ButterBack expands with GEA’s ammonia-based BluX chiller technology that delivers flexible, low-maintenance cooling while helping the company move closer to net zero.
A partnership shaping the soul of pasta
Barilla and GEA unite tradition with innovation at a new R&D pilot plant in Illinois – boosting speed, flexibility & quality while keeping the soul of pasta alive. 🍝
Using everything: How by-product processing reduces food waste
Maximizing the value of every resource is key to a circular economy. Modern technology unlocks the vast potential in animal by-products, transforming side-streams into valuable proteins, fats and biofuels for new, more sustainable value chains.
