Fitting The Swing Check Valve And Socket (If Supplied But Not Fitted); Adjusting The Cut-In Level Control - Delta V3 Installation And Operating Manual

5.3 Fitting the swing check valve and socket (if supplied but not fitted)
2
3
1
1. Position the swing check valve on the discharge nozzle. Make sure the disc
of the swing check valve opens upwards.
2. Screw the socket on with the long thread and tighten it.
5.4 Adjusting the cut-in level control
Figure 4. Switching levels.
CLICK!
CUT-IN LEVEL
Table 4. Cut-in levels and cut-out levels.
Pump set
Delta V3
Delta V4
Delta V6
For manual operation the cut-out level must be no lower than 15mm.
Delta V3, V4, V6 Submersible Pump
CUT-OUT LEVEL
Factory setting
Cut-out level (mm) Cut-in level (mm)
70
110
110
5 Installation at site
Figure 3: Fitting the swing
check valve and socket
1. Discharge nozzle
2. Socket 1¼"
3. Swing check valve
STOP
Cut-out level (mm)
145
200
200
Installation and operating manual
Maximum limits
Cut-in level (mm)
295 375
315 420
315 420
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