Product sheet TVV2025 + SD20

SD20TVV20/25

Water regulation

TVV20/25, valve + SD20, actuator

Water regulation with heat supply controlled by

thermostat, but without the option of adjusting or

stopping the water ﬂow. Pipe dimension for TVV20 DN

20 (¾”) and for TVV25, DN 25 (1”).

Add a suitable thermostat for controlling TVV20/25 +

SD20, like KRT1900 or T10/TK10.

For this type of water regulation the following

components are required:

• TVV20/25, 2-way regulation valve

Pressure class PN16. Maximum pressure 2MPa

(20Bar).

Maximum pressure fall TVV20, 100kPa (1Bar).

Maximum pressure fall TVV25, 62kPa (0,62Bar).

The kv value is adjustable in 3 stages:

TVV20: kv 1,6, kv 2,5 and kv 3,5

TVV25: kv 2,5, kv 4,0 and kv 5,5

• SD20, actuator on/off 230V~

A thermostat controls the actuator to open and

close, thereby regulating the supply of heat to SW.

The closing time of the valve is 5 seconds, prevents

sudden pressure changes in the pipe system. IP40.

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Water regulation TVV20/25 SD20 TVV20/25, valve + SD20, actuator Water regulation with heat supply controlled by thermostat, but without the option of adjusting or stopping the water flow. Pipe dimension for TVV20 DN 20 (¾”) and for TVV25, DN 25 (1”). Add a suitable thermostat for controlling TVV20/25 + SD20, like KRT1900 or T10/TK10. For this type of water regulation the following components are required: • TVV20/25, 2-way regulation valve Pressure class PN16. Maximum pressure 2MPa (20Bar).