Model CD74TBR is an inferential type, single stream vane wheel, wet dial water meter, and it¡¯s suitable for domestic use. Brass body and adopt all antiseptic material, no leak.
WORKING CONDITION£º
*The max. admissible water pressure£º1.6MPa£¨16bar£©
*Water temp. : not more than 50¡æ (cold water meter),
not more than 90¡æ (hot water meter)
NOTE: The technical data conform to ISO4064 standard, class B.
Maximum permissible error:
Between qt (included) and qs is:
¡ª ¡À2% for water having a temperature ¡Ü50¡æ;
¡ª ¡À3% for water having a temperature >50¡æ and ¡Ü90¡æ.
Between qmin and qt (excluded) is ¡À5%.
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 |
|
¦¤P at the qs |
MPa |
¡Ü0.1 |
¡Ü0.1 |
¡Ü0.1 |
|
L |
mm |
110 |
130 |
160 |
|
I |
mm |
190 |
230 |
280 |
|
H |
mm |
89 |
89 |
89 |
|
B |
mm |
88 |
88 |
88 |
OVERALL DIMENSIONS PRESSURE LOSS CURVE
 |
