Return flow temperature maintenance with actuator - DN 50 (2")

Return flow temperature maintenance - DN 50 (2")
with actuator
Field of application: for heating systems with return flow temperature maintenance
for solid fuel boilers, wood-fired and stove heating systems

Manufacturer:

PAW GmbH & Co. KG
Böcklerstr. 11 31789 Hameln
Germany
info@paw.eu

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Technical data

Operating data

Max. operating temperature: 110 °C

Dial thermometer: 0 - 120 °C

Output: 120 kW

Max. operating pressure: 6 bar

Temperature difference: 10 K

Kvs value: 25

Flow rate: 10340 l/h

Electrical data: 230 V / 50 Hz

Power consumption: 2.5 W

Equipment

Dial thermometer: 0 - 120 °C

Shut-off valves: Ball valves with handle

Equipment: with actuator

Dimensions

Nominal diameter: DN 50 (2")

Installation length: 792 mm

Installation height: 296 mm

Connection generator: 2" int. thread

Connection consumer: 2" int. thread

Materials

Valves and fittings: Brass

Gaskets: EPDM / AFM34

Insulation: --

Electrical data (heating/actuators)

Setting time 90°: 140 s

Electrical connection: 230 V - 50 Hz

Torque actuator: 5 Nm

Power consumption: 2.5 W

Description

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 PM2 is is controlled by an external controller. The actuator opens the 3-way valve only when the boiler circuit has reached the opening temperature set. Then the pump can charge the tank.
The pump sets DN 40 and DN 50 with pumps DN 32 are delivered with reducer flanges. The pump sets DN 25 and DN 32 are delivered with insulations.

Actuator - Technische Daten
Electrical connection: 230 V / 50 Hz
Power consumption: 1 W (DN 20); 2.5 W (DN 25-DN 50)
Torque: 2 Nm (DN 20); 5 Nm (DN 25-DN 50)
Setting time 90°: 105 s (DN 20); 140 s (DN 25-DN 50)

Downloads

There are currently no installation and operating instructions available for download.

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Product information

Safety instructions
The installation and commissioning as well as the connection of electrical components require technical knowledge commensurate with a recognised vocational qualification as a fitter for plumbing, heating and air conditioning technology, or a profession requiring a comparable level of knowledge [specialist].
The following must be observed during installation and commissioning:
- relevant local and national regulations
- accident prevention regulations of the professional association
- instructions and safety instructions mentioned in these instructions.

CAUTION
Personal injury and damage to property!
The product must only be used in heating circuits filled with heating water according to VDI 2035 / Ö-Norm H 5195-1. The product must not be used in domestic water applications.

NOTICE
Material damage due to mineral oils!
Mineral oil products cause lasting damage to seals made of EPDM, whereby the sealant properties get lost. We do not assume liability nor provide warranty for damage to property resulting from sealants damaged in this way.
- It is imperative to avoid that the EPDM sealing elements of the unit get in contact with substances containing mineral oils.
- Use a lubricant based on silicone or polyalkylene and free from mineral oils, such as Unisilikon L250L and Syntheso Glep 1 of the Klüber company or a silicone spray.