Industrietechnik
VFG250-39 VFG2 - 2- way control valves
Valves, DN15-50, kvs 0.6-39, 20 mm stroke, designed for control of hot, cold or glycol-mixed water in heating and ventilation systems. 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 Industrietchnik’s SE5... actuators. They should not be used in domestic water systems.
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Specifications
| Nominal diameter | DN50 |
|---|---|
| Connection | G2" |
| Kvs | 39 m 3 /h |
| Actuator | SE5 |
| Pressure rating | PN16 |
|---|---|
| Connection | BSP internally threaded according to ISO 228/1 |
| Flow characteristics | Equal percentage |
| Max. leakage | 0 % of the Kvs value (PTFE gasket, carbon-filled 25 %, no leakage) |
| Max. diff. pressure | 1600kPa |
| Media | Hot water, cold water, glycol-mixed water |
| Media temperature | -5…+140°C |
| Rangeability | 100:1 |
| Stroke | 20mm |
| Body | Brass CW614N |
| Seat | Brass CW614N |
| Plug | Stainless steel 1.4301 |
| Stem | Stainless steel 1.4305 |
| Seat packing | PTFE with 25 % carbon |
| O-rings | EPDM |
Software & documentation
Product sheet
Other documentation
Accessories
IS02420001
Spare parts kit, O-ring kit for BTV valves from DN15 to DN25 (until 2018-12)
IS6321457301
Spare parts kit, packing box, for BTV valves from DN32 to DN50 (until 2018-12) and FRS valves.