Required Water meters size 1/2'' class D from China fatctory

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Water meters size 1/2'' class D
Technical Requirements Description
General I.
Dry type
II.
Suitable for potable water
III.
Multi-jet working principle IV. Special glass with high resistance to pressure
And impact
V.
Low pressure loss, high sensitivity at initial flow
VI.
Vacuumed mechanism
VII.
360° rotating lid and Non return valve
VIII.
Brass body with high resistance to pressure and impacts
IX.
Suitable for cold water up to 50°C
X.
Brass Male-end connection option
Xi.
Stainless steel register cup
Xii.
Impeller chamber protected by strainer
Overview This specification applies to Cold-water meters based on a direct mechanical
Process
Involving the action of the velocity of water through its effect on the rotation
Rate of a
Moving part of a meter (Propeller meter), or through the use of volumetric
Chambers
With mobile piston (piston meter) for meter size 15mm (1/2'') and 20mm
(3/4'').
It applies to water meters with nominal flow rate up to 4, 000m3/h and with a
Maximum working pressure of 16-bar.
For this purpose, water should be considered cold when its temperature is in the
Range
Of 00C to 400C.
Stability and Leak proof Water meter must withstand a pressure value of up to 1.6 times of its MAP
Value and
There should be no leakages