emmeti DN15 Manual De Instalacion Y Uso página 10

Hydraulic performance according to 2014/32/UE MID Directive
Meaning:
Q1: minimum flow rate at which the counter must function respecting the detected errors
Q2: minimum flow rate to which the counter must function respecting the detected errors for the
upper flow rate field
Q3: permanent flow rate
Q4: overload flow rate (maximum)
R: ratio between Q3 and Q1 (e.g.. R100, Q3=100·Q1)
MID metrological class
Q3
Q4
Performance in horizontal, R100
Q1
Q2
Performance in vertical, R40
Q1
Q2
Perdite di carico contatore volumetrico SJ per acqua sanitaria
Load losses
1000
DN15 Kv=3,15
DN20 Kv=5,04
100
10
1
100
10
IT GB
DN15
R (Q3/Q1)≤100 H H horizon-
tal installation
R (Q3/Q1)≤63 V vertical
installation
m /h
3
m /h
3
DN15
l/h
l/h
DN15
l/h
l/h
1000
Q [l/h]
R (Q3/Q1)≤100 H H horizon-
R (Q3/Q1)≤63 V vertical
2,5
3,13
25
40
39,7
63,5
10000
DN20
tal installation
installation
4
5
DN20
40
64
DN20
63,5
101,6