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HeatBloC® K34 DN 20 (¾")

3-way mixing valve with integrated bypass 0-50 %
Application range: for low-temperature heating systems controlled by a mixing valve
Recommended application range:up to 21 kW; 20 K up to 905 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: 20 kW
Max. operating pressure: 6 bar
Temperature difference: 20 K
Kvs value: 3.7
Flow rate: 905 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: 385 mm
Width: 180 mm
Nominal diameter: DN 20 (¾")
Installation length: 255 mm
Connection generator: 1" ext. thread, flat sealing
Connection consumer: ¾" int. thread
Centre distance: 90 mm
Valves and fittings: Brass
Gaskets: EPDM
Insulation: EPP
Flat-sealing connections ¾'' internal thread / 1'' external thread
with 1" union nut for assembly on PAW distribution manifolds
with PAW mounting equipment, the HeatBloC®s can be installed on wall brackets

Large ball valve handles
easy handling, visible closing position

3-way mixing valve with adjustable bypass completely made of brass, linear characteristic (prevents temperature variation). Through the adjustable bypass on the front of the mixing valve 0 to 50 % of return water are mixed with the flow water, depending on the heating system.
For mounting actuators of other manufacturers, you need the adapter set item no. 705580.

PAW actuator SR2
with 1.5 m 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 2 Nm

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

The insulation for the distribution manifold is integrated in the heating circuit insulation.

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