Hydrasonic I-UWM In-line / flanged ultrasonic water meter

The Hydrasonic I-UWM Flanged is a large-bore static ultrasonic flow meter for chilled water, potable water and demineralized water in district cooling, building services and utility networks, using multi-path transit-time sensing for accurate measurement even at low flow. It covers DN50 to DN200 (with flange dimensions to DN300), with Q3 ratings from 25 up to 400 m³/h at OIML accuracy Class 2.

A wide 1:250 turndown (Q3/Q1) lets the meter resolve both peak demand and minimal night-time leakage on the same line, while having no moving parts removes wear and the straight-run sensitivity of mechanical meters. The meter is rated to ≤1.6 MPa working pressure with a low pressure loss of ≤25 kPa, and installs horizontally or vertically in cast iron or stainless steel.

Built for AMI and BMS integration, the I-UWM offers Infrared, M-Bus and RS485 interfaces, 18 months of historical data storage and power-outage protection that preserves the totalizer through supply interruptions. It runs on battery or 24 V DC, with a battery life of ≥6 years and IP65 protection (IP68 optional) across an operating range of -15°C to +55°C.