DEFINITION:
Set of moving device that fitted into a closed conduit driven directly by water flow. Its turbine rotor rotates about the axis which is perpendicular to water flow.
WORKING PRINCIPLES:
Water flow drives vane rotate. Rotating times which is proportional to water flow speed are gathered, hence total volume passed through water meter is recorded.
CHARACTERS:
For hot water.
Outside adjust copper body, painted available as demanded.
Counter: Vacuum sealed, frost proven, keeping clear reading for long.
Magnetic transmission free from disturbance.
WORKING CONDITION:
Water temperature≤ 45º C(Hot water meter≤ 90º C)
Water pressure≤ 1Mpa
MAXIMUM PERMISSIBLE ERROR:
From the minimum flow-rate (qmin) inclusive to the lower zone of the transitionalflow-rate (qt) exclusive: ± 5%.
From the transitional flow-rate (qt) inclusive to the higher zone of the maximum flow-rate (qmax) exclusive: ± 2%(hot water meter± 3%. )
Size | mm | Dn15 | Dn20 | Dn25 | Dn32 | Dn40 | Dn50 |
R | Q3/Q1 | R80 for Horizontal installation |
Q4 | m 3 /h | 3, 125 | 5 | 7, 875 | 12, 5 | 20 | 31, 25 |
Q3 | m 3 /h | 2, 5 | 4 | 6, 3 | 10 | 16 | 25 |
Q2 | l/h | 50 | 80 | 126 | 200 | 320 | 500 |
Q1 | l/h | 31, 25 | 50 | 78, 75 | 125 | 200 | 312, 5 |
Max. Reading | m 3 | 999, 999, 999 | 9, 999, 999, 999 |
Min. Reading | Liter | 0.05 |
Pressure Loss | Δ P | Δ P< 63 at Q3 |
Max. Pressure | MAP | MAP16 |
Max. Temperate | & ordm; C | T30 or T50 |