Industrietechnik

VFD3, 3-Way Control Valves with Internally Thread Union Connection, DN15–50

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.

Specifications

Software & documentation

Articles

(15 st)

VFD315-0,63

Connection

Internal G 1/2" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN15

Kvs

0.63 m³/h

Max. diff. pressure

1600 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD315-1,25

Connection

Internal G 1/2" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN15

Kvs

1.25 m³/h

Max. diff. pressure

1600 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD315-1,6

Connection

Internal G 1/2" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN15

Kvs

1.6 m³/h

Max. diff. pressure

1600 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD315-2,5

Connection

Internal G 1/2" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN15

Kvs

2.5 m³/h

Max. diff. pressure

1600 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD315-4,0

Connection

Internal G 1/2" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN15

Kvs

4 m³/h

Max. diff. pressure

1600 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD320-5,0

Connection

Internal G 3/4" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN20

Kvs

5 m³/h

Max. diff. pressure

1000 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD320-6,3

Connection

Internal G 3/4" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN20

Kvs

6.3 m³/h

Max. diff. pressure

1000 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD325-8,0

Connection

Internal G 1" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN25

Kvs

8 m³/h

Max. diff. pressure

600 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD325-10

Connection

Internal G 1" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN25

Kvs

10 m³/h

Max. diff. pressure

600 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD332-12,5

Connection

Internal G 1" 1/4 on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN32

Kvs

12.5 m³/h

Max. diff. pressure

400 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD332-16

Connection

Internal G 1" 1/4 on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN32

Kvs

16 m³/h

Max. diff. pressure

400 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD340-20

Connection

Internal G 1" 1/2 on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN40

Kvs

16 m³/h

Max. diff. pressure

300 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD340-25

Connection

Internal G 1" 1/2 on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN40

Kvs

25 m³/h

Max. diff. pressure

300 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD350-31,5

Connection

Internal G 2" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN50

Kvs

31.5 m³/h

Max. diff. pressure

200 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way
VFD350-40

Connection

Internal G 2" on union end

Actuator connection

Standard for RVAN5.../RVAN10... actuators

Rangeability

100:1

Nominal diameter

DN50

Kvs

40 m³/h

Max. diff. pressure

200 kPa

Media temperature

-5…150 °C

Nipple

DZR brass CW511L

Cover lid

DZR brass CW511L

Valve Type

3-Way

Specifications

Specifications for VFD3, 3-Way Control Valves with Internally Thread Union Connection, DN15–50
Application	Heating, Cooling, Ventilation
Pressure rating	PN16
Connection types	BSP externally threaded according to ISO 228/1
Flow characteristics	Equal percentage
Leakage	0.1 % of Kvs ()
Media	Hot water, Cold water, Glycol-mixed water (max. 50 % glycol)
Stroke	20 mm
Closing direction	When stem is pulled outward
Media temperature	-5…150 °C
Body	Gunmetal CC491K
Seat	Gunmetal CC491K
Plug	Gunmetal CC491K
Stem	Stainless steel 1.4305
O-rings	EPDM
Stuffing box	Dezincification resistant brass CW511L
Nut	Galvanized malleable cast iron
Fitting seal	Novatec Premium 2, Nitrile bonded aramid fibre with graphite

Software & documentation

Product sheet

VFD3... (EN)