Bosch UT-L 12 - Characteristics; Pressure Loss on the Water Side

24 | Technical description
UNIMAT6 720 807 794 (2013/04)
3.5 Characteristics
3.5.1 Pressure loss on the water side
The pressure loss on the water side is the pressure
differential between the boiler flow and return
connections. It depends on the boiler size (and the
internal diameter of the connectors) and the flow rate.
The graph in Fig. 14 shows the pressure loss on the
water side for the UNIMAT UT-L boilers.
Fig. 14 Pressure loss on the water side for UNIMAT UT-L
boilers (for internal diameters of flow and return
connections
 page 22)
Δp
H
pressure loss on the heating water side
V
H
Flow rate
200
100
40
50
20
30
10
5 10 10050 1000
500
V
H
[m
3
/h]
Δp
H
[mbar]
6 720 642 347-14.1il
DN40
DN65
DN100
DN150
DN250
DN350
DN50
DN80
DN125
DN200
DN300
DN400