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Water meters for hot water METER ÂÊ-Ã
Rotary water meters ÂÊ-(Äó)Õ (single-jet, dry) are intended for measurement of volume of cold potable water and delivery water coming through the pipeline at the temperature from 5˚C up to 40˚C and operating pressure of the water supply system no more than 1,0 MPa (10 kgf/cm²). Rotary water meters ÂÊ-(Äó)Ã (single-jet, dry) are intended for measurement of volume of hot water coming through the pipeline at the temperature from 5°C up to 90°C and operating pressure of water supply system no more than 1,0 MPa (10 kgf/cm²). The hot water meters can be used for cold water metering. This model of the meter can be modified for measurements of the volume of hot water, coming through the pipeline at the temperature from 5°C up to 150°C and operating pressure in the water supply system no more than 1,6 MPa (16 kgf/cm²).

The meters ÂÊ can be additionally equipped with a sensor (reed relay) for remote transfer of low-frequency pulses. The transfer factor (pulse value) should be indicated at the order by the consumer. It can be - 1; 10; 100; 1000 l/imp.
In case of equipping of the meters ÂÊ with pulse sensors of any pulse value (l/imp), the marking will have “È” letter on it.
Rated consumption m³/hour: 2,5
Nominal bore diameter: 20
Water: hot
Pulse output: yes
Field of application: household
Counter type: propeller
Case material: brass
Drawing (26.7 kB)
PDF (49.1 kB)
 

The structure and principle of operation:
The principle of operation of the meter is a measurement of the number of propeller revolutions, rotating due to the flow of coming water. The water flows into the case of the meter through the inlet fitting, it passes through the filter, than through the orifices of the flow directing device and goes to the measuring chamber inside which has the propeller with a magnet on firm supports (drive part of magnetic clutch). The water, after the measuring chamber goes through the outlets of the flow directing device to the outlet fitting of the meter.
The number of the propeller revolutions is proportional to the quantity of flowing water. For the remote reading of the meterage using the pulse sensor with the frequency proportional to the water discharge, one of the pointers of the point indicator or one of the disks of the registration mechanism must have the magnet on it (only the meters having letter "È" in the label) which passage near to the reed relay provides closure of the reed relay contacts. The registration mechanism having scaling mechanical reducer, provides transformation of the number of the propeller revolutions into the measured water volume (in cubic meters and their fractions according to the readings of the roller mechanism, in cubic meter fractions – according to the readings of pointer indicators). The scale of the registration mechanism has an asterisk, providing increase in the meter resolution of the meter.
Print version
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