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 |
Dn20 |
R |
Q3/Q1 |
80 |
80 |
80 |
Q4 |
m3/h |
3.125 |
5 |
3.125 |
Q3 |
m3/h |
2.5 |
4 |
2.5 |
Q2 |
l/h |
50 |
80 |
50 |
Q1 |
l/h |
31.25 |
50 |
31.25 |
Max. Reading |
m3 |
99999.9999 |
Min. Reading |
Liter |
0.05 |
Pressure Loss |
ΔP |
<63 |
Max. Pressure |
MAP |
16 |
Max. Temperature |
T |
T30 or T50 |