NWM MULTI E is IMPELLER (turbine) water meter with magnetic transmission, dry type register for residential application with sizes from Dn15 to Dn20designed by NWM and meets to the requirements of Directive 2004/22/EC on measuring instruments; The European Standard EN14154+A1+A2:the International Organization of Legal Metrology OIML R-49: 2006(E): Water meters intended for the metering of cold potable water and hot water or comply with ISO4064 Standard.
CHARACTERISTICS:
All the Materials in contact with water, consciously selected by the known resistance to corrosion;
Cold water meter under current standard for lower than 30ºC(T30), but NWM MJ-WDC E1 can be used safely in water temperature up to 50ºC(T50);
The rollers are hermetically sealed by special liquid don't touch with the water which ensures the clear reading in any operating conditions;
The Impeller is the only moving parts in contact with water permitting the most reliable;
The mechanical transmission movement with the maximum reliability;
The extra inlet filter at the inlet of the meter body permits cleaning it without breaking the metrological seal;
Non Return Valve to avoid the reserve flow Rate AS OPTION;
Size |
mm |
Dn15 |
Dn20 |
Dn25 |
Dn32 |
Dn40 |
Dn50 |
R |
Q3/Q1 |
|
|
|
|
|
80 |
|
|
Q4 |
m3/h |
3,125 |
5 |
7,875 |
12,5 |
20 |
31,25 |
Q3 |
m3/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 |
m3 |
|
99999,9999 |
|
|
|
999999,9999 |
Min. Reading |
Liter |
|
|
|
|
|
0.05 |
|
|
Pressure Loss |
ΔP |
|
|
ΔP<63 at Q3 |
|
|
Max. Pressure |
MAP |
|
|
|
|
MAP16 |
|
|
Max. Temperate |
t |
|
|
|
T30 or T50 |
|
|