VTTV / VTTR / VTTB - 2-way, 3-way and 3-way (bypass) zone valves DN15-20, kvs 0.25-6.0
Valves for control of heating and cooling in fan-coil or chilled beams applications. The valves are intended to be used together with the thermal RTAN and RTAOM actuators. They are available as 2- and 3-way versions, as well as bypass versions. The valves have linear flow characteristics. The adapter for RTAOM…actuators is delivered with the valve.
Articles
(24 st)-
VTTV15-0,25
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 0.25 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTV15-0,4
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 0.4 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTV15-0,6
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 0.6 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTV15-1,0
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 1 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTV15-1,6
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 1.6 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTV20-2,5
- Connection
- G 3/4
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN20
- Kvs
- 2.5 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTV20-4,0
- Connection
- G 3/4
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN20
- Kvs
- 4 m³/h
- Max. diff. pressure
- 80 kPa
- Media temperature
- 2…95 °C
-
VTTV20-6,0
- Connection
- G 3/4
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN20
- Kvs
- 6 m³/h
- Max. diff. pressure
- 80 kPa
- Media temperature
- 2…95 °C
-
VTTR15-0,25
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 0.25 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTR15-0,4
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 0.4 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTR15-0,6
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 0.6 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTR15-1,0
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 1 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTR15-1,6
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 1.6 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTR20-2,5
- Connection
- G 3/4
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN20
- Kvs
- 2.5 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTR20-4,0
- Connection
- G 3/4
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN20
- Kvs
- 4 m³/h
- Max. diff. pressure
- 80 kPa
- Media temperature
- 2…95 °C
-
VTTR20-6,0
- Connection
- G 3/4
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN20
- Kvs
- 6 m³/h
- Max. diff. pressure
- 80 kPa
- Media temperature
- 2…95 °C
-
VTTB15-0,25
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 0.25 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTB15-0,4
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 0.4 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTB15-0,6
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 0.6 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTB15-1,0
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 1 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTB15-1,6
- Connection
- G 1/2"
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN15
- Kvs
- 1.6 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTB20-2,5
- Connection
- G 3/4
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN20
- Kvs
- 2.5 m³/h
- Max. diff. pressure
- 250 kPa
- Media temperature
- 2…95 °C
-
VTTB20-4,0
- Connection
- G 3/4
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN20
- Kvs
- 4 m³/h
- Max. diff. pressure
- 80 kPa
- Media temperature
- 2…95 °C
-
VTTB20-6,0
- Connection
- G 3/4
- Actuator connection
- M30 x 1,5
- Stroke
- 2.5 mm
- Nominal diameter
- DN20
- Kvs
- 6 m³/h
- Max. diff. pressure
- 80 kPa
- Media temperature
- 2…95 °C
Specifications
Application | Heating, Cooling, Fan coil, Chilled beams |
---|---|
Pressure rating | PN16 |
Connection types | BSP externally threaded according to ISO 228/1 |
Flow characteristics | Linear |
Leakage | 0.0 % of Kvs (No leakage) |
Media | Hot water, Cold water, Glycol-mixed water (max. 40 % glycol) |
Closing direction | When stem is pulled outward |
Max. diff. pressure | 250 kPa, 80 kPa |
Media temperature | 2…95 °C |
Body | Brass CW614N |
Seat | Stainless steel 1.4305 |
Plug | PA + GF |
Stem | PA + GF |
O-rings | FKM |
Stuffing box | PPO + GP |
Spring | Stainless steel |
Software & documentation
Accessories

- Force
- 200 N
- Supply voltage
- 24 V AC/DC
- Control signal
- 0(2)…10 V DC or 0(4)…20 mA

- Force
- 200 N
- Supply voltage
- 230 V AC
- Control signal
- 3-point/2-point

- Force
- 200 N
- Supply voltage
- 24 V AC/DC
- Control signal
- 3-point/2-point

- Force
- 100 N
- Supply voltage
- 24 V AC
- Control signal
- 0...10 V DC, NO





Thermal actuator with position indicator for control of valves in heating or cooling systems. The actuator can…
- Force
- 100 N
- Supply voltage
- 230 V AC
- Control signal
- On/off, NC

Thermal actuator with position indicator for control of valves in heating or cooling systems. The actuator can…
- Force
- 140 N
- Supply voltage
- 230 V AC
- Control signal
- On/off, NC

Thermal actuator with position indicator for control of valves in heating or cooling systems. The actuator can…
- Force
- 140 N
- Supply voltage
- 230 V AC
- Control signal
- 0...10 V DC, NC

Thermal actuator with position indicator for control of valves in heating or cooling systems. The actuator can…
- Force
- 100 N
- Supply voltage
- 24 V AC
- Control signal
- 0...10 V DC, NC

Thermal actuator with position indicator for control of valves in heating or cooling systems. The actuator can…
- Force
- 100 N
- Supply voltage
- 24 V AC
- Control signal
- On/off, NC

Thermal actuator with position indicator for control of valves in heating or cooling systems. The actuator can…
- Force
- 140 N
- Supply voltage
- 24 V AC
- Control signal
- On/off, NC


