Can LGF-PA66 Measure High-Temperature District Heating Water?

The LGF-PA66 is rated for media from -20°C to +120°C as standard. Primary heating network supply water typically runs at 75–95°C and secondary networks at 50–70°C, both inside the range. District heating loops are closed systems with working pressures usually below 1.6 MPa; the LGF-PA66 carries a 1.6 MPa or 4.0 MPa rating depending on size, which covers normal duty.

Two boundaries to be clear about:

• Where instantaneous excursions above 120°C are possible (steam-to-water plants, abnormal conditions near heat sources), specify the high-temperature variant and confirm parameters with the technical team before ordering;
• In hot metering rooms, use the split version and mount the transmitter in a ventilated cabinet or on a wall away from heat.

For heat billing retrofits the PA66 body helps as well: a DN100 meter weighs only about 3.5 kg, so installation in cramped substations needs no lifting gear. Combined with heat calculators or EC32 RTU telemetry for supply/return temperature and flow, consumption billing and network loss analysis run on the platform side.

For more details, visit our product pages or contact the technical team.