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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(17 st)-
VFD215-2,5- Nominal diameter
- DN15
- Kvs
- 2.5 m 3 /h
- Actuator
- SE5
-
VFD215-0,63
- Nominal diameter
- DN15
- Kvs
- 0.63 m 3 /h
- Actuator
- SE5
-
VFD215-1,25
- Nominal diameter
- DN15
- Kvs
- 1.25 m 3 /h
- Actuator
- SE5
-
VFD215-4,0
- Nominal diameter
- DN15
- Kvs
- 4 m 3 /h
- Actuator
- SE5
-
VFD220-5,0
- Nominal diameter
- DN20
- Kvs
- 5 m 3 /h
- Actuator
- SE5
-
VFD220-6,3
- Nominal diameter
- DN20
- Kvs
- 6.3 m 3 /h
- Actuator
- SE5
-
VFD225-8,0
- Nominal diameter
- DN25
- Kvs
- 8 m 3 /h
- Actuator
- SE5
-
VFD215-1,6
- Nominal diameter
- DN15
- Kvs
- 1.6 m 3 /h
- Actuator
- SE5
-
VFD225-10
- Nominal diameter
- DN25
- Kvs
- 10 m 3 /h
- Actuator
- SE5
-
VFD232-12,5
- Nominal diameter
- DN32
- Kvs
- 12.5 m 3 /h
- Actuator
- SE5
-
VFD232-16
- Nominal diameter
- DN32
- Kvs
- 16 m 3 /h
- Actuator
- SE5
-
VFD240-20
- Nominal diameter
- DN40
- Kvs
- 20 m 3 /h
- Actuator
- SE5
-
VFD240-25
- Nominal diameter
- DN40
- Kvs
- 25 m 3 /h
- Actuator
- SE5
-
VFD250-31,5
- Nominal diameter
- DN50
- Kvs
- 31.5 m 3 /h
- Actuator
- SE5
-
VFD250-40
- Nominal diameter
- DN50
- Kvs
- 40 m 3 /h
- Actuator
- SE5
-
-
Specifications
| 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)…