How should I select the LGF-PA66 for booster pumping stations and high-rise building zone metering?

Secondary (booster) supply systems have two metering positions with different requirements: the station master meter and the per-building zone meter.

Station master meter: downstream of VFD-driven booster pumps, flow swings hard with speed changes and pump starts produce water hammer. The LGF-PA66 has no moving parts (hammer-tolerant), an unobstructed tube and near-zero pressure loss, so it does not erode pumping efficiency. Order ±0.5% or ±0.2% depending on billing duty, and size it at 1.0–1.5× rated pump flow — an oversized meter spends its life below the accurate velocity window.

Building zone meter: day/night flow ratios of 10:1 are normal and the night minimum is the leakage indicator, so turndown rules. The LGF-PA66 (±0.5% version) reaches 100:1 turndown and holds accuracy at 0.3 m/s; logging at 5-minute intervals through an EC32 RTU feeds night-flow analysis on the secondary-supply supervision platform.

• Environment: stations are humid and zone meters usually sit in underground valve pits — order IP68, integral or split depending on pit depth. The lightweight PA66 body lets one technician install and service the meter in a tight pit without lifting gear.
• Power: off-grid points run on the low-consumption battery variant or solar.
• Comms: EC32 with 4G/NB-IoT and Modbus RTU/TCP connects directly to municipal supervision platforms or utility DMA systems.

For more details, please visit our product page or contact our technical team.