Technical data

DrainBloC - DN 20 (3⁄4")

Drainback-system

Application range

• Drain-back system for small and medium solar thermal

installations

Application range

• Vapour and over-pressure formation as well as stagnation is

avoided, as there is no solar fluid in the collector field

Operating data

Max. pressure

Maximum operating temperature

Head of the pump

Container volume

10 bars

95 °C, short-term 130 °C

14.5m

20 litres (usable 15 litres)

Equipment

DrainBloC - DN 20 (

3⁄4")

Dimensions

Grundfos UPM3 Solar 15-145

Materials

PWM pump

Flow meters

Solar pressure relief

valve:

Pressure gauge

Controllers

2-60 W,

PWM control

0,5-10 l/min

6 bar

0-6 bars, temperature-

resistant

SC2.3

Height Container

Ø Container

Total width

Width DrainBloC

Height DrainBloC

Centre distance

Total depth

603 mm

280 mm

at least 721 mm

334 mm

577 mm

variabel, at leat 400 mm

365 mm

Valves and fittings

Gaskets

Insulation

Brass

Klingersil / EPDM

EPP

Item no.

6104425

€ / piece

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

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