MWN Nubis, MWN 130 Nubis; -NKOP

A screw-type water meter designed for precise measurement of cold and hot water consumption

Polish MWN water meter
Standard water meters (Ti/IR) are designed for optical or inductive reading
The ability to perform remote readings using a reed switch transmitter, an optoelectronic transmitter or communication adapters

Find out what the MWN water meter has to offer

The MWN is a Polish propeller (Woltman) water meter designed to measure large volumes of cold or hot water. It is used in water distribution networks, multi-family housing, industrial facilities and public utilities. As standard, it allows for optical or inductive reading of measurements and can be integrated with remote monitoring systems, which facilitates consumption monitoring in complex installations. By using the MWN, you gain:

Protection against external interference thanks to resistance to magnetic fields

Remote data reading capability

User safety thanks to the application of materials approved for contact with drinking water

Precise measurement of cold water consumption at temperatures up to 50°C and hot water consumption at temperatures up to 130°C

Stable and precise measurement thanks to the application of a double-sided bearing rotor

Capable of operating at a working pressure of up to 16 bar

Protection of the mechanism against malfunction by locking the rotation of the counting mechanism at an angle greater than 358°

Type****	_Q3 [^m³/h]	DN [mm]	Length [mm]	Connection
Cold water meters
MWN 40-XX* Nubis	25	40	200	Flange***
MWN 50-XX* Nubis	40	50	200	Flange***
MWN 50-G-XX* Nubis	40	50	200	G2½
MWN 65-XX* Nubis	63	65	200	Flange***
MWN 80-XX* Nubis	100	80	225/200**	Flange***
MWN 100-XX* Nubis	160	100	250	Flange***
MWN 125-XX* Nubis	250	125	250	Flange***
MWN 150-XX* Nubis	400	150	300	Flange***
MWN 200-XX* Nubis	630	200	350	Flange***
MWN 250-XX* Nubis	1000	250	450	Flange***
MWN 300-XX* Nubis	1600	300	500	Flange***
MWN 400-XX* Nubis	1000 (_Qn)	400	600	Flange***
MWN 500-XX* Nubis	5000 (_Qn)	500	800	Flange***
Hot water water meters
MWN130 40-XX* Nubis	25	40	200	Flange***
MWN130 50-XX* Nubis	25	50	200	Flange***
MWN130 50-G-XX* Nubis	25	50	200	G2½
MWN130 65-XX* Nubis	40	65	200	Flange***
MWN130 80-XX* Nubis	63	80	200**/225	Flange***
MWN130 100-XX* Nubis	100	100	250	Flange***
MWN130 125-XX* Nubis	160	125	250	Flange***
MWN130 150-XX* Nubis	250	150	300	Flange***
MWN130 200-XX* Nubis	400	200	350	Flange***
MWN130 250-XX* Nubis	630	250	450	Flange***
MWN130 300-XX* Nubis	1000	300	500	Flange***
Water meter design: Water meter with a six-drum counter, suitable for the installation of a communication cover, painted cast iron body. Special versions available to order: * XX - NKOP version – adaptation of the water meter for the installation of an NK reed switch transmitter and/or an NO optoelectronic transmitter (fitting cold water meters with an NO transmitter or adapting cold water meters for an NO transmitter applies only to cold water meters.) Body length to order in accordance with ISO 4064 * Flange drilling: in accordance with PN-EN 1092-2 (PN10 standard; PN16 on request), others in accordance with ANSI B16.5 class 150 (DN40-300) **** Counter with a degree of protection IP68 (until 2020) applies only to: cold water, in versions adapted for radio adapters for communication in the Wireless M-Bus standard or an NK transmitter with pulse ranges of 10, 100, 1000 dm³/pulse. (Does not apply to NO and NKO versions) Copper-glass meter with IP68 rating – new meter design from 2020, cooperation with inductive adapters.

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