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  • Quick assembly
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Low-loss header MVW DN 25 (1")

for boilers with integrated pump

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Our offer is exclusively aimed at corporate clients.

Operating data
Max. operating temperature: 110 °C
Max. operating pressure: 6 bar
Temperature difference: K
Nominal diameter: DN 25 (1")
Installation height: 156 mm
Centre distance: 125 mm
Height insulation: 127 mm
Valves and fittings: Brass
Gaskets: EPDM
Insulation: EPP
By means of the conversion kit (item no. 34431), 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. 344203 or 344213) 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).