Pump sets for return flow temperature maintenance

with actuator DN 20 (3⁄4") - DN 50 (2")

Application range

• Heatinginstallationswithreturnflowtemperature

maintenance for solid fuel boilers, wood-fired and stove

heating systems

Product description:

The return flow temperature maintenance with actuator is a premounted

group of fittings for heating circuits. The pump and the mixing valve can

be isolated by means of the ball valves. An easy maintenance can thus

be carried out 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 buffer 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.

D

N

2

0

196

DN 20 (3⁄4")

DN 25 (1")

DN 32 (11⁄4")

DN 40 (11⁄2")

DN 50 (2")

01/2020 • Printed in Germany

PAW GmbH & Co. KG • 31789 Hameln • Germany • Phone: +49-5151-9856-0 • Fax: +49-5151-9856-98 • info@paw.eu • www.paw.eu