Industrietechnik
VFFG325-6,3 VFFG2/VFFG3 - 2- and 3-way control valves
Control valves, DN25-200, kvs 6.3-550, DIN-standard, for use in heating, cooling and ventilation systems. They are intended to be used together with SE actuators. The valves have DIN-standard lengths.
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Specifications
| Kvs | 6.3 m 3 /h |
|---|---|
| Nominal diameter | DN25 |
| Max. diff. pressure | 400 kPa |
| Actuator | SE5, SE10 |
| Pressure rating | PN16 |
|---|---|
| Connection | Flanged according to EN 1092-2 |
| Flow characteristics | A - AB = equal percentage, B - AB = linear |
| Max. leakage | 0 % of Kvs |
| Media | Hot water, cold water, glycol-mixed water |
| Media temperature | -5…+120°C |
| Rangeability | 100:1 (DN50…200), > 50:1 (DN25…40) |
| Max. diff. pressure | If a smaller actuator than the suggested one is used, the max. differential pressure may be different. More information is available in the product sheet. |
| Body | Grey cast iron EN-JL1040/EN-GJL-250 |
| Plug | Gunmetal 1400 LG2 (DN50…200), Brass CW614N (DN25…40) |
| Seat | Gunmetal 1400 LG2 (DN50…200), Cast iron Grade 250 (DN25…40) |
| Stem | Stainless steel 1.4305 |
| Packing box | Brass CW614N |
| Bonnet | Brass CW614N |
| O-rings | EPDM |
| Packing | Aramid reinforced rubber |
Software & documentation
Product sheet
Other documentation
Accessories
IS2921354201
Spare parts kit, packing box, for BTV (from 2019-01), GF (DN25-40), BF
IS2921351201
Spare parts kit, packing box DN50-200
STEMHEATER
Valve stem heater
02133005
Washer for actuator, 3 mm thick with ø14 mm hole. For RVAN5 and RVAN10 on DN50-65 GF-valves.