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ZX
Summarize
ZX
Application scope
100 30%
The meaning of type
100
Denote self-priming pump
3(m /h)Denote the rated capacity of pump
ZX
(mm)Denote the diameter of pump's inlet
100 20
Denote rated head
1
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Our ZX series of self-priming pumps are saving energy products which are according to the relevant tech-
nical documents in national and international. It is self-priming centrifugal pump, it has many excellencies,
such as compact structure, convenient operation, balanced running, easy maintenance, high efficiency,
long life, strong self-priming ability and so on. It don't require to install bottom valve, it only need assure there
is stated liquid before work. So it predigests the pipeline, and improves the work condition.
It is applicable for environment protecting of city, building, fire fighting, chemical industry, pharmacy,
dyestuff, printing and dyeing, brewing, electric power, plating, paper making, industrial and mining
flushing, equipment cooling and so on;
Impact drive sprinkler can spray like raindrop, it is a good tool for farm, nursery, garden and tea garden;
It is applicable for clean water, sea water, chemical industrial medium liquid with acid and alkali and
general mushy serosity (the viscosity of medium is 100 centipoise, containing solid quantity may reach
to lower than 30%);
It can match with all types and specifications of filter press, it is the best pump which can transfer serosity
to filter.
Brief introduction of type ZX
Operation principle and structure description
70
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This pump adopts the structure of axial hydraulic pulser. Pump casing is constituted by suction chamber,
fluid reservoir, volute chamber, hydraulic pulser hole, gas-liquid separate chamber and so on, after pump
starting normally, impeller will suck the liquid of suction chamber and the air in suction line, and they will
mix in the impeller, through the centrifugal effect, liquid with gas will flow to the exterior of volute chamber,
forming certain thickness of white foam and high-speed revolving liquid ring in the exterior of impeller. The
mixture of gas-liquid enters into gas-liquid separate chamber through diffusible pipe. At this time, because
flow speed is reduced suddenly, so the light gas will separate from the mixture of gas-liquid, gas will rise to
discharge continually through the vent of pump casing. The liquid without gas will back return to fluid rese-
rvoir, and enter into impeller again through hydraulic pulser hole, and mix with the suction gas in suction
line of impeller, and through the high-speed revolving effect of impeller, flow to the exterior of impeller
again. While it goes round and round, the air in suction line reduced continually until there is no air, it will
finish the self-priming process and pump will work normally.
There is cooling chamber in some bearing foot of pump. While bearing overheats to bring the temperature
of bearing body is more than 70 , we can infuse cooling liquid to cool it circularly by anyone joint of the
cooling liquid pipe which is outside the cooling chamber. The sealing mechanism of tandem seal rings can
avoid liquid leak from high-pressure area to low-pressure area, the fore seal ring installs on the pump body,
the back seal ring installs on the bearing body, it should be replaced by new one while the seal ring is wea-
ring and influences the efficiency and self-priming of pump.
2
Brief introduction of type ZXZX
Materials table
Structure drawing
ZX
1 2 4 5 6 7 8 9 10 11 12 13 143
12 11 10
2 3 4 5 6
14
12 11 10 9
7
1
813
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Coup-ling
Pumpshaft Bearing Mechani
calseal
Bearingpart
Pumpshell
Outletplate
Inlet plate
Front sealring
ImpellerBack cover
Waterfender
AddingLingnid hole
Backliquidhole
3
Structure drawing of type ZX
ZX
Collection of chara cteristic curve8
5
80
75
70
65
60
55
50
45
40
35
30
25
20
17
.5 15
12
.5 10
7.5 5
H(m
)
32ZX
3.2
-50
32ZX
3.2
-32
40ZX
6.3
-20
50
ZX
18
-20
40
50
ZX
10
-40
50ZX
15-1
2
50ZX
15-6
0
50
ZX
12
.5-5
0
65
ZX
25
-32
80ZX
40-2
2
65
ZX
30
-15
80ZX
35-1
3
80
ZX
50
-32
10
0ZX
10
0-2
0
100ZX
80-1
60
100ZX
100-4
0
80
ZX6
5-5
580ZX60-7
0
15
0ZX
16
0-5
5
100Z
X100-
65
100ZX
70-8
0
150ZX
150-8
0
20
0ZX
28
0-6
5
2 4
6
8
1
0 1
2 1
6 2
0 2
5 3
0 3
5 4
0 4
5 5
0 5
5 6
0 6
5 7
0 9
0 1
20
1
50
17
5 2
00
2
50
3
00
35
03
Q(m
/h)
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4
Collection of chara cteristic curve of type ZX
ZX
ZX Performance parameter sheet
r/min kW
32ZX3.2-32
32ZX3.2-50
40ZX10-40
40ZX6.3-20
50ZX15-12
50ZX18-20
50ZX20-30
50ZX10-40
50ZX12.5-50
50ZX15-60
65ZX30-15
65ZX25-32
80ZX35-13
80ZX40-22
80ZX50-32
80ZX60-55
80ZX60-70
100ZX100-20
100ZX100-40
100ZX100-65
100ZX70-80
150ZX160-55
150ZX150-80
200ZX280-65
3.2
3.2
10
6.3
15
18
20
10
12.5
15
30
25
35
40
50
60
60
100
100
100
70
160
150
280
32
50
40
20
12
20
30
40
50
60
15
32
13
22
32
55
70
20
40
65
80
55
80
65
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
1450
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
4
4
4
4
4
4
4
4
4
4
5
5
2
2
2
2
2
2.5
2.5
1.5
1.5
1.5
2
2
3.5
2
2.5
2
1.5
2.5
2
2
2
2
2
1.5
1.1
1.1
4
1.1
1.5
2.2
4
4
5.5
7.5
3
5.5
2.2
5.5
7.5
15
22
11
22
30
30
45
55
90
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(m) (m) (min/5m)
Type
3(m /h)
Capacity Head Rotate speed NPSH Self-suction performance
Motor power
5
Performance parameter sheet of type ZX
ZX Dimension drawing for installation and table
ZX
ZX Dimension sheet for installation
A BD 1 P1 d-z D1 P1 d-z H H1 H2 L L1
120
120
130
130
140
140
140
140
140
160
160
160
185
185
185
195
195
205
205
215
215
260
260
315
90
90
100
100
110
110
110
110
110
125
130
130
150
150
150
160
160
170
170
180
180
225
225
280
14-4
14-4
14-4
14-4
14-4
14-4
14-4
14-4
14-4
18-4
18-4
18-4
18-4
18-4
18-4
18-4
18-4
18-4
18-4
18-8
18-8
18-8
18-8
18-8
120
120
120
130
140
140
140
140
140
160
140
140
160
160
160
185
185
185
185
195
195
215
215
260
90
90
90
100
110
110
110
110
110
125
110
110
130
130
130
145
145
150
150
160
160
180
180
225
14-4
14-4
14-4
14-4
14-4
14-4
14-4
14-4
14-4
18-4
14-4
14-4
14-4
14-4
14-4
18-4
18-4
18-4
18-4
18-8
18-8
18-8
18-8
18-8
360 340
360 340
400 330
400 330
400 280
400 280
400 330
460 360
460 380
500 360
480 360
460 380
480 360
460 380
460 380
700 450
700 450
600 415
700 460
780 520
780 520
800 550
900 600
1000 750
16 4
16 4
18 4
18 4
16 4
16 4
18 4
18 4
18 4
18 4
16 4
18 4
16 4
18 4
18 4
18 4
18 4
18 4
18 4
18 4
18 4
18 4
18 4
18 4
145
145
170
150
145
145
150
150
150
170
130
160
145
160
175
185
190
170
190
190
195
220
170
220
310
310
340
340
315
305
340
370
365
410
330
370
340
375
400
460
480
420
470
520
525
550
665
780
465
465
480
480
450
436
480
460
510
580
420
510
420
530
550
640
670
590
660
710
720
765
820
970
720
720
820
820
750
730
820
840
920
1000
810
930
735
950
950
1270
1300
1150
1350
1445
1150
1165
1174
1220
135
135
140
140
130
132
140
135
140
165
140
145
145
150
150
185
185
180
195
195
200
300
300
400
32ZX3.2-32
32ZX3.2-50
40ZX10-40
40ZX6.3-20
50ZX15-12
50ZX18-20
50ZX20-30
50ZX10-40
50ZX12.5-50
50ZX15-60
65ZX30-15
65ZX25-32
80ZX35-13
80ZX40-22
80ZX50-32
80ZX60-55
80ZX60-70
100ZX100-20
100ZX100-40
100ZX100-65
100ZX70-80
150ZX160-55
150ZX150-80
200ZX280-65
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L
H
d-zD1
P1
d-z
L1
H2
H1
B
A
D1
P1
TypeDimension of inlet flange Dimension of outlet flange Hole distance of
baseplate Holediameter H-olenumber
Dimension of exteri or cemter
6
Inlet
Dimension drawing for instabllation and table of type ZX
ZX
The instruction of installation
;
;
;
A. 3.5
B.
C. 2~3
D.
;
;
0.1
3~4
70
12 M12 1.25
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We should pay attention to the deferent concentricity of pump shaft and motor; it is important for the
operation and life of pump whether the installation is right or not, we must install and proofread it carefully;
The coupling of pump must be tightened by nut, and in order to prevent loosing of nut, it should be locked,
or else impeller is easy to move, and will bring mechanical failure;
In order to keep certain liquid storage in pump body, get better self-priming ability and prevent dry friction
of mechanical seal, the inlet of pump must be higher than the central line of pump shaft;
When install the suction line, we should pay attention to the followings:
A.The height of the suction should not be higher than 3.5 meter, if it is possible, the height of the suction
should be lower than the lowest level of water tank, and to do the best to shorten the length of suction line,
install less elbow, which is propitious to shorten the self-priming time and improve the self-priming function.
B.In the suction line, the valve, flange and so on should prevent leakage of gas and liquid, namely, leakage
of gas isn't allowable in the suction line.
C.It should install filter in the suction line to prevent solid enter into the pump body.The effective overflow pr-
oportion of the filter should be 2-3 times of the section in suction pipe,filter should be checked periodically.
D.It should have own supports in the suction pipe and discharge pipe, pump body isn't allowable to bear
the load of pipeline.
7
Instruction of installation and using of type ZX
The using of pump
Preparative and check before start
When we install the pump, the electrostatic grounding resistance of pump and pipeline should achieve
the stated requirement;
When we install the pump, we should check the pipeline and the pump carefully to confirm if there is stone,
sand and so on or not.
Proofread the installation clearance and concentricity of the coupling of pump and motor, the allowable
deviation of disalignment is 0.1mm. The altitudinal difference of shaft between the pump and the motor
may be adjusted by the sheet copper and sheet iron which is set under the foot.
If there isn't blight when units keep operation for 3-4 hours actually, we will think the installation is done, we
should check the temperature of shaft during commissioning, and the temperature of bearing body shou-
ldn't more than 70 ;
If it has set the plastic pipe which inside hole diameter is 12 for the cooling water joint of cooling chamber
in the pump bearing body, the dimension of screw thread should be M12*1.25;
If it has installed check valves in the discharge pipe of pump, and that it couldn't discharge gas successfully
during self-priming process, we should add small discharge pipe and valve in the vent of pump.
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According to the running condition of pump, this series of self-priming pumps adopt calcium base grease
of high quality and 10# machine oil to lubricate separately, the pump which adopts calcium base grease
to lubricate should fill the bearing tank with calcium base grease periodically, if the oil level of the pump
which adopts machine oil to lubricate isn't enough, we should fill it.
Check whether the liquid storage in the pump shell is higher than the margin of impeller or not, if it isn't en-
ough, we may fill the pump body with liquid storage from the liquid filler on the pump shell directly. If the
liquid storage isn't enough, it shouldn't operate, or else the pump couldn't work normally, and it is easy to
destroy mechanical seal.
Check whether the revolving parts of pump is blocked or not.
Check whether the foot of pump body and the nut is loose or not.
Check the concentricity and parallelism for the shaft of pump and the main shaft of motor.
Check whether the intake pipe leaks gas or not, if there is leakage, we must solve it.
Open the valve of suction pipe, open the control valve little(don't open fully).
8
ZXInstruction of installation and using of type ZX
9
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Start and operation:
Inching self-priming pump, pay attention to whether the revolving direction of pump shaft is right or not.
Pay attention to whether there is abnormal noise and shock or not during revolving period.
Pay attention to the reading of pressure and vacuum gauge, after certain time of undulation, if the read-
ing of pressure and vacuum gauge is steady after start, it means that there is enough liquid in the pump, it
will transfer liquid normally.
Before pump starts to transfer liquid normally, namely in the process of self-priming, we should pay attent-
ion to the rising of water temperature in pump specially, if the process is too long and the water temperat-
ure in pump is too high, we should stop pump to check the reason.
If the liquid temperature in pump is too high to self-priming, we may stop unit provisionally, and make use
of the liquid in discharge pipe to flow backwards to the pump or fill the pump with liquid from the liquid
filler on the pump body directly, to reduce the liquid temperature, then start the pump.
It may be the reason of cavitation when pump occurs strong shock and noise during the operation period,
the reason of cavitation has two kinds: First, the flow speed in intake pipe is too large; Second, the suction
lift is too high. We may adjust control valve of vent and heighten the reading of pressure gauge when the
flow speed is too large, it should be removed quickly when there is block in the intake pipe; We may reduce
the installation height of pump when the suction lift is too high.
If the malfunction causes pump to stop during working period, and it need start again, the control valve of
vent should open little(don't close fully), it is good for discharging gas from vent during the process of self-
priming, and it can guarantee that pump start in less load condition.
Pay attention to check whether there is leakage in pipeline or not.
Stop pump:
We should shut off the gate valve in discharge pipe firstly.
Make sure that the running of pump has stopped.
In the cold season, we should discharge all of liquid storage in the pump body and
water in the cooling chamber of bearing body, to avoid the parts are frozen.
ZXInstruction of installation and using of type ZX
ZX
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The maintenance and disassembly
This pump has the characteristics of simple structure and long life. It doesn't require to disassemble in normal
condition. We only need remove the malfunction momentarily.
We should pay attention to several main parts when maintain it:
Rolling bearing: We should replace bearing when pump keeps running for long time and bearing has wore out.
Fore seal ring, back seal ring: We should replace it when seal ring has wore out.
Mechanical seal: If there isn't leakage in mechanical seal, it shouldn't be disassembled to check. If there is
large leakage under the leaky hole of bearing, mechanical seal should be disassembled to check. When
disassemble the mechanical seal, we should put and take it lightly, pay attention to clean the fitting surf-
ace, protect the mirror surface of static ring and dynamic ring, and prohibit to hit it. The main reason of le-
akage in mechanical seal is the friction of mirror surface. We may polish the mirror surface to renew it. Ano-
ther reason is that the O type rubber sealing ring (or absorber) isn't installed well or has distortion and
ageing. At this time, we should adjust or replace the O ring to assemble it again.
The order of disassembly:
Disassemble the motor or take off the coupling.
Disassemble the bearing body assembly, to check the radial clearance of impeller and fore seal ring, and
whether the nut of impeller is loose or not.
Disassemble the nut of impeller, take off the impeller, to check the radial clearance of impeller and back seal ring.
Take off the set screw of mechanical seal, pull off the dynamic ring part of mechanical seal, check the joint
state for the surface of dynamic ring and static ring, check the seal state for O -type seal ring(or absorber).
Take off the set screw of coupling, pull off the coupling.
Disassemble the cover of bearing, disassemble the pump shaft and bearing.
Assemble according to contrary order.
10
Maintenance and disassembly of type ZX
ZX
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a.
b.
c.
d.
e.
f.
a.
b.
c.
a.
b.
c.
a.
b.
c.
d.
e.
f.
a.
b.
c.
d.
e.
f.
a.
b.
c.
d.
e.
f.
a.
b.
c.
d.
a.
b.
c.
d.
11
Malfunction reason and remove method type ZX
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Malfunction reason and remove method
Malfunction Reason Remove method
Water pump couldn't discharge water
Noise and shake are large
The discharge isn't enough
The power of shaft is too large
a. There isn't liquid storage in pump
shell or the liquid storage isn't en-
ough;
b. Suction pipe leaks gas;
c. The revolving speed is too low;
d. The suction lift is too high or the
suction pipeline is too long;
e. The leakage of mechanical seal is
too large;
f. The gas in suction pipeline couldn't
discharge from vent.
a.Add enough liquid storage;
b.Check and remove the leakage;
c.Adjust the speed of rotation;
d.Reduce the suction lift or shorten the
suction pipeline;
e.Repair or replace;
f.Discharge it.
a.The foot isn't stable;
b.The pump shaft is curving;
c.There is NPSH;
d.The bearing is wore out;
e.There is sundries;
f.The main shafts of pump and
motor aren't concentric.
a.The flow passage of impeller and
the suction pipe are blocked;
b.The impeller and the seal of
impeller are wore out;
c.The power isn't enough or the
revolving speed is too low.
a.The flow capacity is too large;
b.The revolving speed is too large;
c.The shaft of pump is curving or
impeller is blocked;
d.The flow passage in pump
is blocked.
a.Increase the pressure of vent;
b.Reduce it befittingly;
c.Replace or adjust it;
d.Remove block.
a.Remove block;
b.Replace the ring;
c.Reinforce power, adjust to the rated
revolving speed.
a.Reinforce it;
b.Replace or adjust it;
c.Adjust the work condition;
d.Replace it;
e.Clean the sundries;
f.Adjust the concentricity.
12
ZXMalfunction reason and remove method type ZX
Recommended