Regin
ZTVB25-8 ZTVB / ZTRB - 2- and 3-way control valves, DN25-40, kvs 8-20, 5.5 mm stroke
Valves for control of heating and cooling in climate, heating and ventilation systems. They can also control glycol-mixed water in for example liquid recovery systems. The valves are intended to be used together with the RVAZ4 actuators. A hand wheel for manual operation is delivered with the valve.
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Specificaties
| Nominal diameter | DN25 |
|---|---|
| Connection | G1" |
| Kvs | 8 m 3 /h |
| Max. diff. pressure | 200 kPa |
| Actuator | RVAZ4 |
| Application | Heating systems, cooling systems, fan-coil units, radiant cooling, ventilation systems |
|---|---|
| Pressure rating | PN16 |
| Connection, actuator | M30 x 1.5 |
| Connection | BSP internally threaded according to ISO 228/1 |
| Flow characteristics | Linear |
| Max. leakage | 0 % of the kvs value |
| Media | Hot, cold or glycol-mixed water (max. 50 % glycol) |
| Media temperature | 1…110°C |
| Rangeability | 50:1 |
| Stroke | 5.5mm |
| Body | Brass CW614N |
| Seat | Brass CW614N |
| Plug | Brass CW614N |
| Stem | Stainless steel 1.4305 |
| Seat packing | EPDM |
| O-rings | EPDM |