VFDH125-215 VFDH - 2-way control valves
Pressure balanced 2-way valve, DN15-150, kvs 0.4-310, DIN-standard. Intended for control of hot, cold or glycol-mixed water, ideal for district heating within the temperature range -5...+185°C. Intended for use with the SE5.../SE10.../SE18.../SE25... actuators.
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Specifications
| Nominal diameter | DN125 |
|---|---|
| Kvs | 215 m 3 /h |
| Stroke | 40 mm |
| Actuator | SE25 |
| Pressure rating | PN16 |
|---|---|
| Connection | Flanges according to EN 1092-2 |
| Flow characteristics | Equal percentage |
| Max. leakage | 0.0 % of the kvs value (PTFE gasket, carbon-filled 25 %, no leakage) / 0.05 % of kvs for NTVS…-…M models with metal packing |
| Media | Hot water, cold water, glycol-mixed water |
| Media temperature | -5…+185°C |
| Rangeability | 100:1 |
| Max. diff. pressure | 1600kPa |
| Body | Nodular cast iron (GJS) EN-JS1050 |
| Seat | Stainless steel 1.4301 (DN15…DN100) or gunmetal CC491K (RG5) (DN125…DN150) |
| Plug | Stainless steel 1.4305 (DN15…DN100) or gunmetal CC491K (RG5) (DN125…DN150) |
| Stem | Stainless steel 1.4305 |
| Lining | Stainless steel 1.4301 |
| Seat packing, soft seal | PTFE with 25 % carbon |
| Seat packing, metal seal | Stainless steel 1.4057 |
| Packing box | Dezincification resistant brass CW 602N, self-adjusting teflon |
| O-rings | Viton |
Software & documentation
Product sheet
Other documentation
Accessories
IS0603080300
Spare parts kit, packing box for ETRS, MTVS and MTRS valves (until 2019-12), for ETVS valves (until 2021-04)…