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HeatBloC® K35 DN 25 (1")

3-temperatures mixing valve
Field of application: Heating installations with buffer tank and solar heating support, control of radiant floor and panel heating systems
Recommended application range: up to 32.5 kW; 20 K up to 1400 l/h

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Our offer is exclusively aimed at corporate clients.

Operating data
Max. operating temperature: 110 °C
Dial thermometer: 0 - 120 °C
Output: 32 kW
Max. operating pressure: 6 bar
Temperature difference: 20 K
Kvs value: 4.1
Flow rate: 1400 l/h
Check valves: 1 x 200 mm wc
Dial thermometer: 0 - 120 °C
Shut-off valves: Ball valves with handle
Opening pressure check valve: 200 mm wc
Number of check valves: 1
Height: 383 mm
Width: 250 mm
Nominal diameter: DN 25 (1")
Installation length: 340 mm
Connection generator: 1½" ext. thread, flat sealing
Connection consumer: 1" int. thread
Centre distance: 125 mm
Connection at the back side: 1" ext. thread
Valves and fittings: Brass
Gaskets: EPDM
Insulation: EPP
Flat-sealing connections 1½" ext. thread
incl. 1½" union nut for the installation on a PAW modular distribution manifold.
With PAW mounting equipment the heating circuit can be installed on wall brackets.

Large ball valve handles,
easy handling, visible closing position

3-temperature mixing valve
with second flow connection on the backside This connection allows to take water with a low flow temperature from the intermediate part of the tank (for example a buffer tank).

PAW actuator SR5
with 1.5 m of cable and mounting set for snap-in assembly on the mixing valve, suited for flow on the right or left side, change-over switch for manual / automatic operation, supply 230 V / 50 Hz, torque at least 5 Nm
For mounting actuators of other manufacturers, you need the adapter set item no. 705580.

EnEV-compliant functional insulation
made of durable elastic EPP, complete insulation of valves and fittings, ventilation opening to cool the pump

Free access to the pump head
by simply removing the front insulation shell

Check valve in the return pipe
can be opened, 200 mm wc, spring-loaded, thus suited for horizontal and overhead installation

All water-carrying parts are made of brass

Full metal thermometers
can be pulled off, with immersion sleeve integrated in the ball valve

PAW heating pumps with high-efficiency (ECM) technology
fitted with 2 m cable, completely premounted, integrated in the insulation, pressure tested, with serial number, perfectly designed system, pump characteristics, EuP/ErP READY

Pump can be isolated,
so that it can be replaced without draining