JS hot‑water water meter, type GSD8-RFM, DN15 (1/2"), Q3 = 2.5 m³/h, R160/50, Tmax: 90 °C, L = 110 mm, GZ3/4 connection, dry‑running, anti‑magnetic, for remote reading. 8MA00C12SSCMVS

Single‑jet dry‑run water meter for hot water, with optional anti‑magnetic protection and optional transmitter version

The water meter is intended for measuring hot‑water consumption up to 90 °C and cold‑water consumption up to 30 °C, in accordance with the MID directive and a Hygienic Certificate — it is suitable for installations where the water is intended for drinking. Its construction is based on a dry‑run mechanism with an eight‑drum counter rotating 360°, providing a clear and durable reading without mechanical contact between moving parts.

Measurement is performed by a reinforced four‑pole magnetic coupling, which eliminates slip and rupture — guaranteeing result stability even during long‑term use. A sapphire bearing in the rotor support reduces friction and increases sensitivity to low flows, enhancing measurement accuracy at low consumption.

The GSD8-RFM version (8MA00C12SSCMVS) can be ordered with a radio‑overlay pulse transmitter — but this does not mean the standard device is pre‑fitted for installation. The version without a transmitter contains no electronic interfaces and cannot be later equipped with a transmitter. An optional anti‑magnetic ring is available as an extra configuration — it is not part of the standard version.

A GZ 3/4" connection, 110 mm length and nominal diameter DN15 make the meter compatible with typical hot‑water installations. Working pressure up to 16 bar and measurement ranges R160-H / R50-V or R100-H / R50-V allow selection of the appropriate accuracy class for the circuit — both for high and low flows (Q3 = 2.5 m³/h, Q4 = 3.125 m³/h).

The device weighs 0.5 kg, height 71 mm — no additional brackets or special mounting solutions are required.