VFD225-10 VFD2, 2-way control valves
2 way valves, DN15-50, kvs 0.25-40, 20 mm stroke. Designed for control of cold, hot or glycol-mixed water. For use in domestic water systems or district heating within the temperature range -5°C...+150°C. They are pressure balanced (from DN20-50, not DN15) and can therefore handle high differential pressure with low force. The valves are intended to be used together with SE5 actuators.
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Specifications
| Nominal diameter | DN25 |
|---|---|
| Kvs | 10 m 3 /h |
| Actuator | SE5 |
| Pressure rating | PN16 |
|---|---|
| Connection | BSP externally threaded according to ISO 228/1; supplied with threaded connections |
| Flow characteristics | Equal percentage |
| Max. leakage | 0.0 % of the Kvs value (PTFE gasket, carbon-filled 25 %, no leakage) |
| Media | Hot water, cold water, glycol-mixed water |
| Media temperature | -5…+150°C |
| Rangeability | 100:1 |
| Stroke | 20mm |
| Max. diff. pressure | 1600kPa |
| Body | Gunmetal CC491K (RG5) |
| Seat | Stainless steel 1.4301 |
| Plug | Stainless steel 1.4305 |
| Stem | Stainless steel 1.4305 |
| Seat packing | PTFE with 25 % carbon |
| Packing box | Dezincification resistant brass CW511L |
| O-rings | EPDM |
| Nut | Malleable cast iron, galvanized |
| Nipple | Dezincification resistant brass CW 511L |
| Fitting seal | Novatec Premium 2, Nitrile bonded aramid fibre with graphite |
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)…