Ultrasonic Water meter for sanitary water measuring meter, Based on OIML-R45 standard, it has a memory to save data and errors for 12 months.


These meters are produced in two models, cold and hot water sanitary , which are generally used to separate the water bill and gas bill of the building units according to the consumption of each unit:

a) Measurement of hot and cold sanitary water consumption of different parts (Zone) of the building to separate the water bill of the building units

b) Measuring the thermal energy consumption of sanitary hot water in different parts (Zone) of the building to be used in the separation of the gas bill of the building units

c) Measurement of flowrate for monitoring in the industry sector

The main components:


DN25 – DN32 – DN40 Ultrasonic water meter

You can contact the experts of Behaz Energy

DN15 – DN20 Ultrasonic water meter

Measurable items:​

Installation map​: Cold water meter

Installation map (CWM)

Installation map: Hot water supply and return meter

Installation map (HWM + HWRM)

In building units where the sanitary hot water return pipe is installed inside the unit, one measuring meter should be installed on the inlet pipe to the unit and one on the outlet pipe of the unit to compare the amount of incoming and outgoing water and measure. Its difference obtained the amount of sanitary hot water consumed.

It is necessary to explain that, due to technical reasons, the measurement of this amount requires special knowledge and technology, which is exclusively at the disposal of  behsaz Energy Company.

Choose size and model:​

Each meter has a minimum flow rate (Q2), nominal flow rate (Q3) and maximum flow rate (Q4).

First, the circulation flow rate of the cycle should be calculated and after referring to the technical table, it should be compared with the flow rate of different sizes. The best option is to match the cycle flow rate with the nominal flow rate (Q3) of the meters.


Net weight (kg) Minimum height (mm) Minimum with (mm) Connection thread (inch) The length of take over (mm) Interface thread (inch) The length of no take over (mm) Maximum flow (m3/hr) Nominal flow (m3/hr) Minimum Flow (m3/hr) Nominal Size (mm)
85 90.5 R1/2 205 G3/4B 110 3.125 2.5 0.010 16 DN15
0.5 90 90.5 R3/4 235 G1B 130 5.0 4.0 0.016 20 DN20
1.1 95 85 R1 280 G1 1/4B 225 7.875 6.3 0.0252 25 DN25
1.3 115 85 R1 1/4 305 G1 1/2B 180 12.5 10 0.040 32 DN32
1.7 125 85 R1 1/2 328 G2B 200 20 16 0.064 40 DN40

Ultrasonic meters size 1/2 inch (DN15) to 11/2 inch (DN40) are produced from brass type with threaded connections, the copper joint are a part of the meter and must be used during installation.