Industrietechnik
VFD350-31,5 VFD3 - 3-way control valves
Valves, DN15-50, kvs 0.63-40, 20 mm stroke, intended for control of cold, hot and glycol-mixed water in heating, ventilation and domestic water systems. The valves are intended to be used together with Industrietechnik’s SE5... actuators. Valves with DN32-50 may also be used with SE10 if a larger actuating force is required.
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Specifications
| Nominal diameter | DN50 |
|---|---|
| Max. diff. pressure | 250 kPa |
| Kvs | 31.5 m 3 /h |
| Actuator | SE5, SE10 |
| Pressure rating | PN16 |
|---|---|
| Connection | BSP externally threaded according to ISO 228/1; supplied with threaded connections |
| Flow characteristics | Equal percentage |
| Max. leakage | 0.1 % of the kvs value |
| Media | Hot, cold or glycol-mixed water |
| Media temperature | -5…+150°C |
| Rangeability | 100:1 |
| Stroke | 20mm |
| Body | Gunmetal CC491K (RG5) |
| Seat | Gunmetal CC491K (RG5) |
| Plug | Gunmetal CC491K (RG5) |
| Stem | Stainless steel 1.4305 |
| 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 |
| Cover lid | Dezincification resistant brass CW 511L |
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)…