- Best quality
- Quick assembly
- Longevity
HeatBloC®
Heating
technology
Low-loss header MVW DN 20 (¾")
for boilers with integrated pump
Operating data
Max. operating temperature:
110 °C
Max. operating pressure:
6 bar
Temperature difference:
K
Dimensions
Nominal diameter:
DN 20 (¾")
Installation height:
78 mm
Centre distance:
90 mm
Height insulation:
82 mm
Materials
Valves and fittings:
Brass
Gaskets:
EPDM
Insulation:
EPP
By means of the conversion kit (item no. 3143), the modular distribution manifolds get a bypass which connects the flow and return line without causing any resistance (low-loss header).
It must be considered that the pump of the boiler circuit must deliver a higher flow rate than the consumer pumps need in total.Otherwise, unwanted circulations occur on the right or left end of the low-loss header.In that case a hydraulic separator (item no. 3142 or 31421) must be installed below a distribution manifold.
Please note:
When you plan the system you must already check whether a low-loss header can be used.In combination with central heating boilers, hydraulic separators must be installed below / upstream of a distribution manifold as the boiler delivers a flow rate with a high temperature difference (leads to unwanted circulation in low-loss headers).
It must be considered that the pump of the boiler circuit must deliver a higher flow rate than the consumer pumps need in total.Otherwise, unwanted circulations occur on the right or left end of the low-loss header.In that case a hydraulic separator (item no. 3142 or 31421) must be installed below a distribution manifold.
Please note:
When you plan the system you must already check whether a low-loss header can be used.In combination with central heating boilers, hydraulic separators must be installed below / upstream of a distribution manifold as the boiler delivers a flow rate with a high temperature difference (leads to unwanted circulation in low-loss headers).
