Paw - 01/2020

Hydraulic separators - DN 25 (1")

Item no.

€ / piece

up to 3500 l/h

344213

up to 1600 l/h

344203

Description of function

Hydraulic separators are used when there are one or more heat generation

circuits/primary circuits with pump and one or more consumer/secondary

circuits with distribution pump in one system. Due to the operating

conditions in such a system, the pumps affect each other, leading to

unwanted changes of the throughput capacity and of the head in the

circuits. The hydraulic separator causes a hydraulic separation of the

connected circuits. It is thus possible to make the connected primary and

secondary circuits work independently regarding the hydraulics. The flow in

one circuit does not cause a flow in the other circuit when the pressure drop

in the hydraulic separator is insignificant.

When a hydraulic separator is used, each circuit (the primary and the

secondary circuit) must be equipped with a pump. Thus, a heat generation

circuit/primary circuit can be provided with constant throughput and a

consumer circuit/secondary circuit can be provided with variable flow.

These are the typical functioning conditions for modern heating and air

conditioning systems.

The figures on the left side show three possible conditions of hydraulic

stability.

Completely made of brass, completely insulated with EPP insulation, for the installation under a modular

distribution manifold DN 25 or separately on the wall (vertically or horizontally).

Connections:

1" PAW flange for nut 11⁄2" (top)

11⁄2" ext. thread / 1" int. thread, flat-sealing with threaded connection

2 × 1⁄2" int. thread for immersion sleeve and fill and drain valve

Width = 625 mm

Installation height = 180 mm

Centre distance = 375 mm

Completely made of brass, with separate flow and return line, for the installation under a HeatBloC DN 25. With

EPP insulation.

Can also be installed under a modular distribution manifold DN 25 (with mounting plate item no. 3425) or

separately (in the pipe). When being installed separately, two additional connections sets (item no. 2152) are

necessary.

Connections: :

1" PAW flange for nut 11⁄2" (top)

11⁄2" ext. thread, flat-sealing with threaded connection

Width = 375 mm

Installation height = 128 mm

Centre distance = 125 mm

Prices excl. VAT • 01/2020 • Printed in Germany

176

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