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4 - COMPONENTS AND MAINTENANCE
4.8.1 - Optional balancing valves
Two-way valve with waterflow balancing function is embedded with a differential pressure controller (with or without
pressure test points to control the waterflow settings). The setting of the valve is shown in Fig. 16.
The manual control knob (16a) is ready fitted to protect valve stem and pre-set mechanism and facilitates manual
control of valve during commissioning.
Setting procedure:
■ Remove control knob from the valve (16a)
■ Loosen knurled nut (16b).
■ Adjust the desired dial setting with the white knob (16c)
- See table below.
■ Retighten knurled nut by hand (16d).
1/2' valve
3/4' valve
1'' valve
ON/OFF actuator
Moduling / 3p actua.
Waterflow range :
MINI
0,2
0,4
0,5
0,6
0,8
1
1,2
1,4
1,6
1,8
2
2,2
2,4
2,6
2,8
3
3,2
3,4
3,6
3,8
MAX
(*): Maximum specified water flow on the valve body
WARNING: The valves have to be open when flushing or pressure testing the system. Strong pressure
impacts can damage closed valves.
Differential pressure across the valve's control path is not allowed to exceed 400 kPa.
20
Waterflow to adjust [l/h]
Not Standard
Available
Not Standard
Available
Not Standard
Available
200 l/h (*)
600 l/h (*)
NA
NA
NA
30
35
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
Available
Available
1200 l/h (*)
NA
NA
NA
NA
NA
NA
100
NA
115
200
130
260
160
310
180
380
210
430
240
490
270
550
300
610
320
660
350
730
380
780
410
840
440
900
460
960
490
1010
520
1070
550
1130
575
1190
Available
Available
1600 l/h (*)
NA
NA
NA
NA
220
290
250
420
480
550
610
680
740
810
870
940
1000
1070
1130
1200
1260
1330
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