10
11
3. HF, HX, HN dimensions (mm)
Model
D1 D2
N
E
L
L1
L2
L3
d
D
H
K
M
weight
Three
phase
Single
phase
Single
phase
Kg
HF, HX, HN 2-20
G1 G1 110 182
305
84
87
138 9
145 215
230
96
108
15
HF, HX, HN 2-30
323
102
105
HF, HX, HN 2-40
341
120
123
HF, HX, HN 2-50
359
138
141
HF, HX, HN 2-60
422
156
159
170 225
245
100
17
HF, HX, HN 4-20
G1¼ G1 110 182
329
102
105
138 9
145 215
230
96
108
15
HF, HX, HN 4-30
356
129
132
HF, HX, HN 4-40
416
156
162
170 225
245
100
17
HF, HX, HN 4-50
455
183
188
HF, HX, HN 4-60
482
210
213
HF, HX, HN 8-10
G1½G1¼ 118 228
395
108
126
138 9
170 230
265
100 108
20
HF, HX, HN 8-20
395
108
126
HF, HX, HN 8-30
425
138
156
25
HF, HX, HN 8-40
490
168
186
180 240
270
28
HF, HX, HN 8-50
520
198
216
30
HF, HX, HN 12-10
G1½G1½
118 268
395
108
126
138 9
170 230
265
100
108
20
HF, HX, HN 12-20
395
108
126
21
HF, HX, HN 12-30
460
138
156
180 240
270
25
HF, HX, HN 12-40
490
168
186
29
HF, HX, HN 12-50
126 240 555
198
216
195 270
/
/
34
HF, HX, HN 16-10
G2 G2
117 227 423
126
151
138 9
180
230
265
100
108
18
HF, HX, HN 16-20
118 228 455
126
151
240
270
27
HF, HX, HN 16-30
130 240 561
171
196
195 270
/
/
33
HF, HX, HN 16-40
120 230 621
216
340 140 12 220 270
/
/
190
41
HF, HX, HN 20-10
G2 G2
117 227 423
126
151
138 9
180
230
265
100 108
18
HF, HX, HN 20-20
118 228 455
126
151
240
270
27
HF, HX, HN 20-30
120 230
576
171
294
140 12 220 270
/
/
190
41
HF, HX, HN 20-40
621
216
340
44
V. START-up, OpERATION AND MAINTENANCE
Caution: It is prohibited to run without liquid, which will damage mechanical
seal and sliding bearing.
1. Do not start the pump until it has been filled with water or liquid fully.
· Fill water in pump in inverse pouring system.
Close the pump outlet valve, release air vent screw on the pump head, and open the
inlet valve slowly until stable water flows from the air vent screw.
Then fasten the screw.
· Fill water in pump when liquid level is lower than pump. Before installing,
pump and pipes must be filled with liquid fully and air vented.
2. Check the rotary direction
Switch on the power supply and view the rotary direction by viewing the
motor fan. From the motor end, pump shall run counter-clockwise.
3.Check before pump start-up
· Check whether the pump is fixed securely.
· Check whether pump is filled with water fully and check whether liquid
can flow freely.
· Check whether the voltage of power supply is stable.
· Check whether it turns correctly.
· To make sure all pipe lines are connected tightly and can supply water
normally.
· The valves in the inlet pipe line are completely opened.
· The outlet valve shall be opened slowly after the pump is started up.
· Check the operation pressure if pressure meter is installed.
· Check all the controls for normal operation. If the pump is controlled
by pressure switch, check and adjust the starting pressure and stopping pressure.
Check the full load current to make sure it not surpasses the max allowed
current.
4. Frequency of pump starts
· Pump should not be started too frequently. It is suggested pump shall
not be started more than 100 times per hour if the motor power is less or equal
to 4kW. When motor power is big than 4kW, pump shall not be started
more than 20 times in one hour.
· Suggestion: When pump running, flow should be controlled at the range
of 0.5-1.3 times of rated flow.
· There should be no noise when pump running. If there is something
wrong, stop pump and check it and repair.