NTVS20-2,7 NTVS - 2-way control valves, DN15-150, kvs 0.4-310, DIN-standard
Pressure balanced 2-way valve intended for control of hot, cold or glycol-mixed water or district heating. Intended for use with the RVAN... actuators.
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Specificaties
| Actuator connection | Standard for RVAN5.../RVAN10... actuators |
|---|---|
| Rangeability | 100:1 |
| Stroke | 20 mm |
| Nominal diameter | DN20 |
| Kvs | 2.7 m³/h |
| Max. diff. pressure | 1600 kPa |
| Application | Heating, Cooling, District heating, District cooling |
|---|---|
| Pressure rating | PN16 |
| Connection types | Flanged according to EN 1092-2 |
| Flow characteristics | Equal percentage |
| Leakage | 0.0 % of Kvs (PTFE gasket, carbon-filled 25 %, no leakage) |
| Media | Hot water, Cold water, Glycol-mixed water (max. 50 % glycol) |
| Closing direction | When stem is pushed inward |
| Media temperature | -5…185 °C |
| Body | Nodular (ductile) cast iron EN-GJS-500-7, EN-JS1050 |
| Seat | Stainless steel 1.4301 |
| Plug | Stainless steel 1.4305 |
| Stem | Stainless steel 1.4305 |
| Seat packing | PTFE (carbon filled 25 %) |
| O-rings | Viton |
| Stuffing box | Dezincification resistant brass CW511L |
| Lining | Stainless steel 1.4301 |
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