MWN Nubis / MWN130 Nubis — Woltman turbine water meters DN40–500 for cold (up to 50 °C) and hot (up to 130 °C) water
Country: Poland · Model: MWN Nubis / MWN130 Nubis
MWN Nubis is an industrial dry-dial Woltman turbine water meter for cold water up to 50 °C in sizes DN40–500, and the MWN130 version is rated for hot water up to 130 °C. The maximum working pressure is 16 bar. The meter is intended for commercial metering of large and relatively stable flows on mains, apartment building inlets and in water utility metering stations.
- Type
- dry-dial turbine (Woltman) water meter with horizontal impeller axis
- Sizes
- DN40–500 (cold water); DN40–300 (hot water, MWN130)
- Nominal flow Q3
- 25–1 600 m³/h (DN40–300); DN400 and DN500: Qn 1 000 and 5 000 m³/h
- Water temperature
- MWN: up to 50 °C; MWN130: up to 130 °C
Technical specifications
| Type | dry-dial turbine (Woltman) water meter with horizontal impeller axis |
|---|---|
| Sizes | DN40–500 (cold water); DN40–300 (hot water, MWN130) |
| Nominal flow Q3 | 25–1 600 m³/h (DN40–300); DN400 and DN500: Qn 1 000 and 5 000 m³/h |
| Water temperature | MWN: up to 50 °C; MWN130: up to 130 °C |
| Working pressure | up to 16 bar |
| Metrological range | up to R200 (MID) |
| Body length | 200–800 mm (on request per ISO 4064) |
| Connection | flanges PN-EN 1092-2 PN10 (PN16 on request), ANSI B16.5 class 150 for DN40–300; DN50 also G2½ thread |
| Register | 6-drum, IP65 or IP68, rotation lock > 358° |
| Remote reading | optical/inductive pick-ups (#UTIP connector), NK reed and NO optoelectronic sensors |
| Standards | MID, EN 14154, ISO 4064, OIML R49; EU type-examination certificate, PZH approval, WRAS |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The nominal flow Q3 of the cold-water models is from 25 m³/h (DN40) to 1 600 m³/h (DN300), and for DN400 and DN500 Qn of 1 000 and 5 000 m³/h is stated. For the MWN130, Q3 is within 25–1 000 m³/h, sizes DN40–300. The face-to-face length is 200–800 mm, per ISO 4064 on request; flanges per PN-EN 1092-2 are PN10 as standard, PN16 on request, for DN40–300 also ANSI B16.5 class 150, and the DN50 model is also available with a G2½ thread. The impeller is hydrodynamically balanced, supported by bearings on both sides, and its characteristic can be adjusted without a bypass channel. The meter is made to the MID directive, EN 14154, ISO 4064 and OIML R49 with a metrological range up to R200. The register is six-drum, rotatable, IP65 or sealed IP68, with a rotation lock above 358° and protection against an external magnetic field. The IP68 version has a #UTIP connector for inductive modules, the IP65 works with optical and inductive pick-ups, and the -NKOP version is prepared for the NK reed sensor and the NO optoelectronic sensor, for cold water only.
How to choose
First determine the water temperature. Cold water up to 50 °C means the MWN, hot water up to 130 °C means the MWN130. The size is selected by nominal flow Q3, and for DN400 and DN500 by Qn. For remote reading use the IP68 with the #UTIP connector or the IP65 with pick-ups. Installation is possible on horizontal pipelines, with the register up or sideways, and on vertical pipelines. For lower flows there are JS Impero vane wheel meters.
Request a price and lead time
MWN Nubis / MWN130 Nubis — Woltman turbine water meters DN40–500 for cold (up to 50 °C) and hot (up to 130 °C) water. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Which sizes are made for MWN Nubis?
DN40–500 for cold water and DN40–300 for hot water in the MWN130 version.
Up to what water temperature does MWN130 work?
Up to 130 °C, while the standard MWN version is rated for cold water up to 50 °C. The maximum working pressure is 16 bar.
What is the nominal flow Q3 of MWN Nubis?
From 25 m³/h for DN40 to 1 600 m³/h for DN300. For the MWN130, Q3 is 25–1 000 m³/h.
Can the meter be connected to remote reading?
Yes, through the #UTIP connector of the IP68 version, IP65 optical and inductive pick-ups, or NK and NO sensors. This gives a link to wired and radio systems, including Wireless M-Bus and M-Bus.
What certificates does MWN Nubis have?
An EU type-examination certificate under the MID directive, a PZH hygiene approval and a WRAS certificate.
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