Service Valves, type HRS, HRSB und HRSN
Service Valves
GEA service valves and GEA Needle Valves are designed to attach additional devices such as manometers to heating and refrigeration systems. Therefore they are available with various types of connections. They have a locking function that can be operated with a handwheel or a ratchet. With valve types HRS and HRSN, the stem is sealed by means of a screw bush. With valve type HRSB, the stem sealing is provided by a threaded bush and a metal bellows for completely hermetic sealing. The valves are also equipped with a back seal. When the valve is fully open, it is possible to replace the threaded bush and the seal without interrupting operation.
Service Valve type HRSB
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
- Assembly is possible in any position
| HRS Service Valves | HRSB Service Valves | HRSN Needle Valves | Service and Needle Valves with electric actuator | |
| material | steel or stainless steel | steel or stainless steel | steel or stainless steel | steel or stainless steel |
| nominal size | DN 8-15 | DN 8-15 | DN 8-15 | DN 8-15 |
| nominal pressure level | PS 63 | PS 40 | PS 63 | PS 63 |
| temperature range for standard valves | -60 °C to +150 °C | -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 | -10 °C to +200 °C |
| connection | butt welding ends DIN, ANSI
threaded ends | butt welding ends DIN, ANSI
threaded ends | butt welding ends DIN, ANSI
threaded ends | butt welding ends DIN, ANSI
threaded ends |
| additional information | various equipment available | various equipment available | with a pointed control cone for fine adjustment,
various equipment available | equipped with electric actuator |
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