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

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

0.25 m 3 /h

Kvs, B-AB

- m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTV15-0,4

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

0.4 m 3 /h

Kvs, B-AB

- m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTV15-0,6

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

0.6 m 3 /h

Kvs, B-AB

- m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTV15-1,0

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

1.0 m 3 /h

Kvs, B-AB

- m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTV15-1,6

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

1.6 m 3 /h

Kvs, B-AB

- m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTV20-2,5

Nominal diameter

DN20

Connection

G3/4"

Kvs, A-AB

2.5 m 3 /h

Kvs, B-AB

- m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTV20-4,0

Nominal diameter

DN20

Connection

G3/4"

Kvs, A-AB

4.0 m 3 /h

Kvs, B-AB

- m 3 /h

Max. diff. pressure

80 kPa

Actuator

RTAN140, RTAOM125, RVAZ2
VTTV20-6,0

Nominal diameter

DN20

Connection

G3/4"

Kvs, A-AB

6.0 m 3 /h

Kvs, B-AB

- m 3 /h

Max. diff. pressure

80 kPa

Actuator

RTAN140, RTAOM125, RVAZ2
VTTR15-0,25

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

0.25 m 3 /h

Kvs, B-AB

0.25 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTR15-0,4

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

0.4 m 3 /h

Kvs, B-AB

0.4 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTR15-0,6

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

0.6 m 3 /h

Kvs, B-AB

0.6 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTR15-1,0

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

1.0 m 3 /h

Kvs, B-AB

0.8 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTR15-1,6

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

1.6 m 3 /h

Kvs, B-AB

1.0 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTR20-2,5

Nominal diameter

DN20

Connection

G3/4"

Kvs, A-AB

2.5 m 3 /h

Kvs, B-AB

1.6 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTR20-4,0

Nominal diameter

DN20

Connection

G3/4"

Kvs, A-AB

4.0 m 3 /h

Kvs, B-AB

2.5 m 3 /h

Max. diff. pressure

80 kPa

Actuator

RTAN140, RTAOM125, RVAZ2
VTTR20-6,0

Nominal diameter

DN20

Connection

G3/4"

Kvs, A-AB

6.0 m 3 /h

Kvs, B-AB

4.0 m 3 /h

Max. diff. pressure

80 kPa

Actuator

RTAN140, RTAOM125, RVAZ2
VTTB15-0,25

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

0.25 m 3 /h

Kvs, B-AB

0.25 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTB15-0,4

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

0.4 m 3 /h

Kvs, B-AB

0.4 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTB15-0,6

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

0.6 m 3 /h

Kvs, B-AB

0.6 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTB15-1,0

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

1.0 m 3 /h

Kvs, B-AB

0.8 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTB15-1,6

Nominal diameter

DN15

Connection

G1/2"

Kvs, A-AB

1.6 m 3 /h

Kvs, B-AB

1.0 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTB20-2,5

Nominal diameter

DN20

Connection

G3/4"

Kvs, A-AB

2.5 m 3 /h

Kvs, B-AB

1.6 m 3 /h

Max. diff. pressure

250 kPa

Actuator

RTAN, RTAOM100, RVAZ2
VTTB20-4,0

Nominal diameter

DN20

Connection

G3/4"

Kvs, A-AB

4.0 m 3 /h

Kvs, B-AB

2.5 m 3 /h

Max. diff. pressure

80 kPa

Actuator

RTAN140, RTAOM125, RVAZ2
VTTB20-6,0

Nominal diameter

DN20

Connection

G3/4"

Kvs, A-AB

6.0 m 3 /h

Kvs, B-AB

4.0 m 3 /h

Max. diff. pressure

80 kPa

Actuator

RTAN140, RTAOM125, RVAZ2

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 systems, cooling systems, fan-coil units, ventilation systems
Pressure rating	PN16
Connection	BSP externally threaded according to ISO 228/1
Flow characteristics	Linear
Max. leakage	0 % of the kvs value
Media	Hot water, cold water, glycol-mixed water
Media temperature	2…95°C
Stroke	2.5mm
Adapter	Included for RTAOM…actuators. No adapter is needed for RTAN… actuators.
Body	Brass CW614N
Plug	PA + GF
Stem	PA + GF
Spring	Stainless steel
Packing box	PPO + GP
O-rings	FKM