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.

Specifications

Software & documentation

Accessories

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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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

Specifications

Specifications for VTTV / VTTR / VTTB - 2-way, 3-way and 3-way (bypass) zone valves DN15-20, kvs 0.25-6.0
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
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