Model CD74TRP/LB-E is an inferential, single stream, straight reading type meter for cold water, and it’s suitable for domestic use. The sealed register mechanism, which is filled with special liquid, is equipped with a suitable pressure compensating device. Brass body and adopt all antiseptic material, no leak. It has all the advantages which the wet or dry dial water meters possess. It has the pulse device, and the measured water volume of per pulse may be 0.1l/pulse, 1 l/pulse or 10l/pulse.
WORKING CONDITION：
*The max. admissible water pressure：1.6MPa（16bar）
Maximum permissible error:
Between qt (included) and qs is ±2%;
Between qmin and qt (excluded) is ±5%.
NOTE: The technical data conform to ISO4064 standard, class B.
*Water temp.：not more than 50℃
FLOW-ERROR CURVE
SPECIFICATION AND OVERAL DIMENSIONS
|
Description |
Unit |
Hydraulic data and dimensions |
|
Nominal size |
mm |
15 |
20 |
25 |
|
inch |
1/2 |
3/4 |
1 |
|
Overload flow-rate (qs) |
m3/h |
3 |
5 |
7 |
|
Permanent flow-rate (qp) |
m3/h |
1.5 |
2.5 |
3.5 |
|
Transitional flow-rate (qt) |
m3/h |
0.12 |
0.2 |
0.28 |
|
Minimum flow-rate (qmin) |
m3/h |
0.03 |
0.05 |
0.07 |
|
Max. reading |
m3 |
99999.9999 |
99999.9999 |
99999.9999 |
|
Min. reading |
m3 |
0.00005 |
0.00005 |
0.00005 |
|
Max. working pressure |
MPa |
1.6 |
1.6 |
1.6 |
|
ΔP at the qs |
MPa |
≤0.1 |
≤0.1 |
≤0.1 |
|
L |
mm |
110 |
130 |
160 |
|
I |
mm |
190 |
230 |
280 |
|
H |
mm |
89 |
89 |
89 |
|
B |
mm |
88.7 |
88.7 |
88.7 |
ERALL DIMENSIONS PRESSURE LOSS CURVE
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