DAYLIFF DFP, Инструкция по установке и эксплуатации

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2
PUMP DATA
2. INSTALLATION
Ÿ
Pump location should be as close as possible to
the liquid level, thus avoiding excessively long
suction piping. Its position must meet the
criterum that NPSHd is higher than NPSHr of the
pump.
Ÿ
For the pump to run properly, the layout and
dimensional design of the suction piping should
meet the following criteria.
Ÿ
The suction piping should be short, with as
few bends as possible, any such bends
should have wide curve radius, the last
section before the pump being straight.
Ÿ
The diameter must be 1.5 to 2 times the
diameter of the pump’s suction flange.
Ÿ
The inlet cone must be eccentric when the
pump works under depression. If it works
under load this cone may be concentric.
Ÿ
The piping should be upwards towards the
pump, with a slope of atleast 2%. It must be
properly sealed, preventing the admission
of air.
1. Foot valve with
strainer
2. Elbow
3. Rising pipe.
Inclination minimum
2%
4. Eccentric cone
5. Vent plug
6. Non return valve
7. Delivery valve
8. Delivery pipe
DFP22
Motor
Model
Dimensions (mm)
DFP75
kW
HP
W H L D1
244 292 472 165 140
300 340 535 185 150
Current
(A)
13.5 3 2.2
15 10 7.5
Weight
(kg)
32 32 50
67 40 65
DNA
(”)
DNM
(”)
D2
Voltage
(V)
1x240
3x415
D2
DNM
W
H
DNA
L
D1