Pump sets for return flow temperature maintenance with actuator

DN 20 (

3⁄4") - DN 50 (2")

Application range

DN 20 (

3⁄4")

DN 25 (1")

DN 32 (11⁄4")

DN 40 (1

1⁄2")

DN 50 (2")

• Heatingsystemswithreturn

flowtemperaturemaintenance

• Solidfuelboilers,woodfiring/stoveheatingsystems

Product description:

The return

flow temperature maintenance with actuator is a

preassembled

fitting group for heating circuits. The pump and the

mixing valve can be isolated by means of the ball valves. The pump can

thus be maintained without draining the heating circuit.

Description of function:

The pump set prevents the temperature in the boiler from falling under

the dew point, thus reducing contamination of the boiler. The pump

set is mounted between the bu

ffer tank and the boiler. The actuator is

controlled by an external controller. The actuator opens the 3-way valve

only when the boiler circuit has reached the opening temperature set.

By means of the mixing valve, the return

flow temperature in the boiler

is kept at a constant level and the maximum amount of energy for the

storage tank charging is provided.

01/2024 • Printed in Germany

PAW GmbH & Co. KG • info@paw.eu • www.paw.eu

181

Mounting example

return flow temperature

maintenance with

actuator DN 25

D

N

2

5