Industrietechnik
DB-VZ3-20 DB-VZ - ON/OFF zone valves
On/off control of heat or cool water flow. The valves must be combined with the SM actuator.
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Specifications
| Connection | G3/4 |
|---|---|
| Nominal diameter | DN20 |
| Kvs | 3.5 m³/h |
| Max. diff. pressure | 100 kPa |
| Media temperature | 0…105 °C |
| Way | 3 |
| Application | District cooling, District heating |
|---|---|
| Pressure rating | PN16 |
| Connection types | BSP internally threaded according to ISO 228/1 |
| Leakage | 0.0 % of Kvs () |
| Media | Hot water, Cold water |
| Closing direction | When stem is pulled outward |
| Max. diff. pressure | 250 kPa |
| Media temperature | 0…105 °C |
| Stem | Stainless steel 1.4305 |
| Ball | NBR |
| Spring | Stainless steel |