Heat/hot water meter JS, screw-type, model MWN-130 NUBIS IP65, DN150 (6"), Q3=400.0 m³/h, R40, Tmax: 130 °C, L=300mm, flange connection, dry-running 60-7725201-000

Screw-type hot water meter with flanged connection and IP65 protection

The MWN-130 NUBIS water meter is a dry-type measuring instrument designed for accurate measurement of high flow rates of hot water at temperatures up to 130°C and a maximum working pressure of 16 bar. Its construction features a horizontal rotor axis parallel to the flow direction, ensuring stability and measurement accuracy under continuous high-load conditions—making it ideal for district heating networks, industrial installations, and public facilities with high heat demand.

The body is made of cast iron, painted, offering high resistance to corrosion and mechanical damage, which is crucial in aggressive operating environments. The flanged connection (DN150) enables easy and leak-tight installation in pipelines in accordance with PN-EN 1092-2 standards. The device length is 300 mm, corresponding to the standard configuration for this diameter—requiring no additional adjustments during installation.

The IP65 protection rating ensures complete isolation of the six-drum register from dust and water jets—allowing installation both indoors and in outdoor or humid locations without risk of damage to the measuring mechanism.

The continuous flow rate is 400 m³/h, with a rangeability factor R = 200 (Q3/Q1), meaning the device accurately measures flow rates from 2 m³/h to 400 m³/h—making it ideal for systems with high load variability, such as during pump startup or seasonal changes in heat consumption.

Installation is possible both horizontally and vertically—the register can be oriented upward or sideways, providing flexibility when integrating with existing pipelines. The device is prepared for remote communication—allowing installation of communication modules (M-Bus, radio, pulse), enabling integration with AMR systems without the need to replace the entire meter.

Resistance to external magnetic fields complies with EN 14154-3 and EN-ISO 4064-2 standards, eliminating the risk of false readings caused by motors, transformers, or other electromagnetic sources—a critical feature in industrial installations.

No regular maintenance or calibration is required during normal operation. Its simple, maintenance-free design, with no moving parts in the measuring zone, ensures long-term reliability even under continuous hot water flow.