Regulating valves, Type HRAR, HRAB, HRAR/HRAB with Electric Actuator
Regulating Valves
GEA regulating valves (HRAR, HRAB, HRAR/HRAB with Electric Actuator) are designed for installation in industrial heating and refrigeration systems. Actuation is by hand wheel or ratched. These valves are both regulating and shut-off valves. Rotating the stem clockwise will lower the valve disc onto the valve seat and therefore close the pipe, counter-clockwise rotation will lift the valve disc and open the pipe. The regulating function is enabled by a cone on the underside of the valve disc. The maximum diameter of the cone corresponds to the valve’s nominal diameter. The stem sealing is provided by a threaded bush with spring-elastic PTFE ring (HRAR). The stem sealing is provided by a threaded bush and a metal bellows which ensures a complete hermetic sealing (HRAB). The valves are equipped with a back seal. When the valve is fully opened it is possible to replace the threaded bush and the seal.
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, R22, R134a and blends with refrigerator oil; neutral, gaseous and liquid mediums; glycol-based cold brine
- Installation is possible in any position but the flow direction must be observed
- HRAR/HRAB with Electric Actuator:
- Electric actuator is designed for ambient temperatures of -40 °C up to +60 °C, enclosure protection: IP68 as per EN 60529, mains: 220V 50 Hz 3-ph AC, insulation class: F, tropicalized, motor protection: thermoswitch 140 °C NC, heater: 110V-250V AC/DC self-regulating
| HRAR Regulating Valves | HRAB Regulating Valves | HRAR/HRAB Regulating Valves with Electric Actuator | |
| Material | steel or stainless steel | steel or stainless steel | steel or stainless steel |
| Nominal size | DN 6-250 | DN 10-250 | DN 25-250 Larger nominal diameters upon request, subject to technical feasibility. |
| Nominal Pressure Level | PS 25, PS 40, PS 63, PS 160 | PS 25, PS 40 | PS 25, PS 40 |
| Temperature range for Standard Valves | -60 °C to +150 °C | -60 °C to +150 °C | -60 °C to +150 °C |
| Temperature range for HT Valve Series | -10 °C to +200 °C | -10 °C to +200 °C | -10 °C to +200 °C |
| Connection | butt welding and flanged ends as per DIN and ANSI, brazed ends, threaded ends | butt welding and flanged ends as per DIN and ANSI, brazed ends, threaded ends | butt welding and flanged ends as per DIN and ANSI, brazed ends |
| Additional information | available with cover extension | available with cover extension | equipped with electric actuator |
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
Shifts in food packaging: 4 trends
Thermoforming has long played a central role in food packaging. Now it is facing a major shift. As regulations tighten, materials evolve and costs rise, form fill seal lines must do more than run reliably – they now shape how food stays fresh, affordable and recyclable. Take a look at the key thermoforming trends informing the food packaging and delivery landscape.
Fruit storage at Betko: Control from peak harvest to global delivery
From the orchards of the Cape to store shelves across 40 countries, the South African packhouse Betko has built a business on freshness, timing and reliability. With GEA’s controlled atmosphere refrigeration technology, the company can now store apples and pears for up to 14 months and cut energy consumption by 20%, with a partnership of more than 30 years at the heart of it all.
