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HeatBloC® K33 DN 25 (1")

Constant value control circuit, thermostatic
Field of application: for radiant floor heating from 3.5 kW, for low-temperature heating systems
Recommended application range: up to 10 kW; 10 K up to 860 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: 10 kW
Max. operating pressure: 6 bar
Temperature difference: 10 K
Kvs value: 3
Flow rate: 860 l/h
Check valves: 1 x 200 mm wc
Dial thermometer: 0 - 120 °C
Shut-off valves: Ball valves with handle
Contact thermostat: 20-60 °C
Thermostatic head: 20-50 °C
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
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-way mixing valve
with bypass 0-50 % and thermostat control completely made of brass, controlled by thermostat and sensor, adjusted manually, bypass on the front of the mixing valve.Control range 20 °C - 50 °C (standard) or 50 °C - 70 °C (on request).

Thermostat, adjustable in the range of 20 °C - 60 °C, when the set temperature is exceeded a switch is activated and shuts off the pump.

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

Flow on the right = standard
Flow and return line can be changed on site, also for heating circuits with mixing valve

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