At maximum stroke the cone releases the nozzle for regulating. The diameter of the nozzle is equivalent to the valve diameter. The valves are fitted with a back seal (flat sealing ring R). When the valve is fully open, the sealing elements (O-rings, A, B, PTFE ring) can be replaced at the stem by unscrewing the bushing.
Technical Features
- Available in steel or stainless steel
- Selection of body material as per German DIN EN12284, AD2000 Series W
- Working media: glycol-based cold brine refrigerant EN 378 p. 1 and blends with refrigerator oil, neutral, gas and liquid media, glycol-based cold brine
- Mounting position: in any position; the flow direction should be observed
| HRAB Regulating Valves | HRAR Regulating Valves | |
| design | straightway or angle type | straightway or angle type |
| material | steel or stainless steel | steel or stainless steel |
| nominal size | DN 10-125 | DN 6-250 |
| nominal pressure level | PS 25, PS 40 | PS 25, PS 40, PS 63, PS 100 |
| temperature range | -60 °C to +150 °C | -60 °C to +150 °C |
| connection | butt welding ends DIN, ANSI flanged ends DIN, ANSI solder ends |
butt welding ends DIN, ANSI |
| other | cover extension | cover extension |