ZX Clean Water Self priming Pump

NegotiableUpdate on 03/13

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Overview

Brand: Quanda Pump Valve Model: ZX Material: Cast Iron Applicable medium: Clear water Head: 12-80m Motor power: 0.75-132kw Diameter: 25-300mm Suction stroke: 5-6.5m

Product Details

ZX Clean Water Self priming Pumpbrief introduction

As an emergency pump, its effectiveness is more prominent in industrial and agricultural production, emergency rescue, such as drainage and firefighting. ZX typeself priming pumpWidely applicable to urban water supply in industrial sectors such as petroleum, chemical, metallurgy, machinery, chemical fiber, food, energy, transportation, etc. It can also be used for agricultural irrigation and sprinkler irrigation. For conveying clear water or other liquids with viscosity less than 5 ° E and temperature below 80 ° C that have physical and chemical properties similar to clear water.

ZX Clean Water Self priming PumpIn which industries is it applied?
It's horizontalcentrifugal pumpSuitable for urban environmental protection, construction, fire protection, chemical, pharmaceutical, dye printing and dyeing, brewing, electricity, electroplating, papermaking, petroleum, mining, equipment cooling, oil tanker unloading, etc. The ZX self-priming pump is suitable for clean water, seawater, chemical media liquids with acid and alkalinity, and slurries with general paste (medium viscosity ≤ 100 cP, solid content up to 30% or less). The ZX type self-priming pump is equipped with a rocker nozzle, which can wash water into the air and disperse it into small raindrops for spray. It is a good machine for pesticides, nurseries, orchards and tea gardens. The ZX self-priming pump can be used with any type and specification of filter press, making it the ideal pump for feeding slurry to the filter press for pressure filtration.
ZX Clean Water Self priming PumpModel representation method

ZX清水自吸泵

ZX Clean Water Self priming PumpSelection parameters

Self priming pump model	Diameter of self-priming pump（mm）		Self suction pump flow ratem3/h	Head of self-priming pumpm	Self-priming pump suction strokem	Self priming pump powerkw	Self suction pump speedr/min	Head of self-priming pumpmScope of use
Self priming pump model	Import	Export	Self suction pump flow ratem3/h	Head of self-priming pumpm	Self-priming pump suction strokem	Self priming pump powerkw	Self suction pump speedr/min	Head of self-priming pumpmScope of use
25ZX3.2-20self priming pump	25	25	3.2	20	6.5	0.75	2900	10-20
25ZX3.2-20self priming pump	25	25	3.2	20	6.5	1.1	2900	10-20
25ZX3.2-32self priming pump	25	25	3.2	32	6.5	1.5	2900	20-32
32ZX3.2-20self priming pump	32	32	3.2	20	6.5	1.1	2900	10-20
32ZX3.2-32self priming pump	32	32	3.2	32	6.5	1.5	2900	20-32
32ZX3.2-50self priming pump	32	32	3.2	50	6.5	3	2900	40-50
40ZX6.3-20self priming pump	40	40	6.3	20	6.5	1.5	2900	10-20
40ZX6.3-32self priming pump	40	40	6.3	32	6.5	2.2	2900	22-32
40ZX10-40self priming pump	40	40	10	40	6.5	4	2900	30-40
40ZX6.3-50self priming pump	40	40	6.3	50	6.5	4	2900	35-50
50ZX15-12self priming pump	50	50	15	12	6.5	1.5	2900	8-12
50ZX18-20self priming pump	50	50	18	20	6.5	2.2	2900	10-20
50ZX12.5-32self priming pump	50	50	12.5	32	6.5	3	2900	22-32
50ZX20-30self priming pump	50	50	20	30	6.5	4	2900	20-30
50ZX14-35self priming pump	50	50	14	35	6.5	4	2900	25-35
50ZX10-40self priming pump	50	50	10	40	6.5	4	2900	30-40
50ZX12.5-40self priming pump	50	50	12.5	40	6.5	4	2900	30-40
50ZX12.5-50self priming pump	50	50	12.5	50	6.5	5.5	2900	40-50
50ZX15-60self priming pump	50	50	15	60	6.5	7.5	2900	40-60
50ZX20-75self priming pump	50	50	20	75	6.5	11	2900	60-75
65ZX-30-15self priming pump	65	65	30	15	6	3	2900	10-15
65ZX25-20self priming pump	65	65	25	20	6	4	2900	10-20
65ZX35-17self priming pump	65	65	35	17	6	4	2900	10-17
65ZX25-32self priming pump	65	50	25	32	6	5.5	2900	22-32
65ZX25-50self priming pump	65	50	25	50	6	7.5	2900	40-50
65ZX25-60self priming pump	65	50	25	60	6	11	2900	40-60
65ZX25-70self priming pump	65	50	25	70	6	15	2900	60-70
80ZX35-13self priming pump	80	65	35	13	6	3	2900	8-13
80ZX43-17self priming pump	80	65	43	17	6	4	2900	10-17
80ZX40-22self priming pump	80	65	40	22	6	5.5	2900	15-22
80ZX50-20self priming pump	80	65	50	20	6	5.5	2900	15-20
80ZX50-25self priming pump	80	65	50	25	6	7.5	2900	20-25
80ZX50-32self priming pump	80	65	50	32	6	7.5	2900	22-32
80ZX60-40self priming pump	80	65	60	40	6	11	2900	30-40
80ZX60-50self priming pump	80	65	60	50	6	15	2900	40-50
80ZX60-55self priming pump	80	65	60	55	6	18.5	2900	45-55
80ZX60-70self priming pump	80	65	60	70	6	22	2900	55-70
100ZX100-15self priming pump	100	80	100	15	6	11	2900	12-20
100ZX100-20self priming pump	100	80	100	20	6	15	2900	22-32
100ZX100-32self priming pump	100	80	100	32	6	15	2900	22-32
100ZX100-40self priming pump	100	80	100	40	6	18.5	2900	30-40
100ZX100-50self priming pump	100	80	100	50	6	22	2900	40-50
100ZX100-65self priming pump	100	80	100	65	6	30	2900	50-65
100ZX70-75self priming pump	100	80	70	75	6	30	2900	60-75
125ZX120-20self priming pump	125	100	120	20	5	18.5	2900	15-20
125ZX140-25self priming pump	125	100	140	25	5	22	2900	15-25
125ZX120-32self priming pump	125	100	120	32	5	22	2900	22-32
125ZX120-60self priming pump	125	100	120	60	5	37	2900	45-60
150ZX150-20self priming pump	150	125	150	20	5	18.5	2900	15-20
150ZX160-25self priming pump	150	125	160	25	5	22	2900	15-25
150ZX150-32self priming pump	150	125	150	32	5	22	2900	22-32
150ZX170-45self priming pump	150	125	170	45	5	37	2900	33-45
150ZX170-55self priming pump	150	125	170	55	5	45	2900	45-55
150ZX170-65self priming pump	150	125	170	65	5	55	2900	55-65
150ZX160-75self priming pump	150	125	160	75	5	55	2900	55-65
150ZX160-80self priming pump	150	125	160	80	5	55	2900	65-80
200ZX200-32self priming pump	200	150	200	32	5	30	1450	22-32
200ZX400-32self priming pump	200	150	400	32	5	55	1450	22-32
200ZX280-63self priming pump	200	200	280	63	5	90	1450	55-63
200ZX350-65self priming pump	200	200	350	65	5	110	1450	50-65
250ZX550-32self priming pump	250	200	550	32	5	75	1450	22-32
250ZX400-50self priming pump	250	200	400	50	5	90	1450	40-50
250ZX450-55self priming pump	250	200	450	55	5	110	1450	40-55
300ZX600-32self priming pump	300	250	600	32	5	90	1450	22-32
300ZX500-50self priming pump	300	250	500	50	5	110	1450	40-50

ZX Clean Water Self priming Pumpinternal structure

ZX清水自吸泵

ZX Clean Water Self priming PumpWhat are the installation requirements?

1. In ZX typeself priming pumpWhen driving directly with an electric motor, attention should be paid to the coaxiality between the pump shaft and the output of the electric motor; The accuracy of pump installation is crucial for the smooth operation of the pump.
Sex and service life have a significant impact, so careful installation and calibration are necessary.
2. The pump coupling must be securely fastened with nuts and tightened to prevent loosening of the nuts, otherwise it may cause impeller movement and mechanical failure.
In order to maintain a certain amount of stored liquid in the pump body, achieve good self-priming capacity, and prevent dry friction of the mechanical seal, the inlet of the pump must be higher than the centerline of the pump shaft.
4. The installation of the suction pipeline should note:
a. The installation height of the suction port should not exceed 5 meters. When conditions permit, the installation height of the suction port should be as low as possible below the lowest water storage level of the pool, and the length of the suction pipe should be shortened as much as possible, with fewer bends installed. This is beneficial for shortening the self-priming time and improving self-priming function.
b. Valves, flanges, etc. in the suction pipeline should be strictly guarded against air leakage or liquid leakage, that is, there should be no air leakage in the suction pipeline.
c. Solid and other debris should be prevented from being sucked into the pump body, and a filter should be installed on the suction pipeline for this purpose. The effective flow area of the filter should be 2-3 times the cross-sectional area of the suction pipe, and the filter should be inspected regularly.
d. The suction and discharge pipelines should have their own supports, and the pump body itself is not allowed to bear the load of the pipelines.
5. When installing the pump, the static grounding resistance of the pump and pipeline should meet its specified requirements.
During installation, it is necessary to strictly inspect the pump casing and pipelines for any stones, iron sand, or other debris.
7. Correct the installation clearance and coaxiality of the pump coupling and motor coupling, with a permissible deviation of 0.1 millimeters for different axial degrees. The height difference between the pump shaft and the motor shaft can be adjusted by placing copper or iron pads on the feet.
8. After 3-4 hours of actual operation of the unit, conduct a final inspection. If there are no adverse phenomena, it is considered that the installation is done properly. During the trial operation, the temperature of the bearings should be checked, and the temperature of the bearing body should not exceed 70 ℃.
9. The bearing body of the pump is equipped with a cooling chamber device and a cooling water joint for fitting rubber or plastic pipes with an inner hole of Φ 12. The thread size is M12 × 1.75.
If a one-way valve is installed on the outlet pipeline of the pump and the pump cannot smoothly discharge gas during the self-priming process, an exhaust pipe and valve should be added at the outlet of the pump.

ZX Clean Water Self priming PumpCorrect usage method

Preparation and inspection work before starting
1. According to the working condition of the pump, high-quality calcium based butter and No. 10 engine oil should be used for lubrication. If a pump lubricated with butter is used, butter should be regularly added to the bearing box A pump lubricated with engine oil If the oil level is insufficient, add enough.
2. Check if the liquid storage inside the pump casing is higher than the upper edge of the impeller If it is insufficient The storage fluid can be directly injected into the pump body from the filling port on the pump casing. It should not be started and operated when the storage fluid is insufficient, otherwise the pump cannot work normally and the mechanical seal may be damaged.
3. Check whether the rotating parts of the pump are stuck or subject to magnetic impact.
4. Check if there is any looseness in the nuts of the pump body feet and various connections.
5. Check the coaxiality and parallelism between the pump shaft and the motor shaft.
6. Check if there is any air leakage in the inlet pipeline, and if there is any, try to eliminate it.
7. Open the valve of the suction pipeline and slightly open (not fully open) the outlet control valve.
Start up and operation
1. Tap the self-priming pump and pay attention to whether the direction of the pump shaft is correct.
2. Pay attention to any abnormal sounds and vibrations during rotation.
3. Pay attention to the readings of the pressure gauge and vacuum gauge. After starting, when the readings of the pressure gauge and vacuum gauge fluctuate for a period of time and stabilize, it indicates that the pump has been filled with liquid and normal infusion operation has begun.
4. During the self suction process before the pump enters normal infusion operation Special attention should be paid to the increase in water temperature inside the pump. If this process is too long and the water temperature inside the pump is too high, stop the pump and check the cause.
If the liquid temperature inside the pump is too high and causes difficulty in self-priming, it can be temporarily stopped Use the liquid in the discharge pipeline to flow back into the pump or directly replenish the liquid into the pump through the storage port on the pump body, in order to cool down the liquid inside the pump Then start it up.
6. If the pump experiences strong vibration and exposure during operation It is possible that cavitation occurs in the pump, and there are two reasons for cavitation: one is excessive flow velocity in the inlet pipe The second issue is that the suction distance is too high. When the flow rate is too high, the outlet control valve can be adjusted Raise the pressure gauge reading. If there is a blockage in the inlet pipeline, it should be promptly eliminated. If the suction stroke is too high, the installation height of the pump can be appropriately reduced.
7. The pump stopped for some reason during operation When it needs to be restarted The outlet control valve should be slightly open (not fully closed) to facilitate the discharge of gas from the outlet during the self-priming process and ensure that the pump starts under lighter loads.
8. Pay attention to checking whether there is any leakage in the pipeline system.
Stop pump
Firstly, the gate valve on the discharge pipeline must be closed.
2. Stop the pump from rotating.
During the cold season, the liquid stored in the pump body and the water in the cooling chamber of the bearing body should be emptied to prevent freezing and cracking of the components.

ZX Clean Water Self priming PumpSpecial attention should be paid to maintenance

The characteristics of ZX self-priming pump are simple and reliable structure, and durability. Under normal circumstances, the pump generally does not require frequent disassembly and maintenance. Once a malfunction is detected, it can be resolved at any time.
When maintaining the pump, several main parts should be noted
a. Rolling bearings: When the bearings wear out to a certain extent after long-term operation of the pump, they must be replaced.
b. Front sealing ring and rear sealing ring: When the sealing ring is worn to a certain extent, it needs to be replaced.
c. Mechanical seal: Mechanical seals should generally not be disassembled for inspection without leakage. If there is a serious leakage at the leakage port at the lower end of the bearing body, the mechanical seal should be disassembled and inspected. When installing and dismantling mechanical seals, they must be handled with care, paying attention to the cleanliness of the mating surfaces, protecting the mirror surfaces of the stationary and moving rings, and strictly prohibiting knocking and collision. The main reason for leakage caused by mechanical sealing is due to the rubbing of the mirror surface. The repair method can be to grind the friction surface to restore the mirror finish. Another reason for leakage in mechanical seals is improper installation or deformation and aging of the 'O' - shaped rubber sealing ring (or buffer pad). At this point, it is necessary to adjust or replace the 'O' - shaped sealing ring for reassembly.
Pump disassembly sequence
a. Remove the motor or disconnect the coupling.
b. Remove the bearing assembly, check the radial clearance between the impeller and the front ring, and check if the impeller nut is loose.
c. Remove the impeller nut, pull out the impeller, and check the radial clearance between the impeller and the rear sealing ring.
d. Loosen the fastening pin of the mechanical seal, pull out the dynamic ring part of the mechanical seal, check the fit between the dynamic and static ring end faces, and check the sealing condition of the "O" ring (or buffer pad).
e. Unscrew the fastening nut of the coupling and pull out the coupling.
f. Remove the bearing end cover and disassemble the pump shaft and bearing.
g. Assemble in reverse order during installation.

ZX Clean Water Self priming PumpWhat should I do if there is a malfunction?

Fault phenomenon	cause analysis	Troubleshooting
ZXself priming pumpno flow	1.No or insufficient liquid storage inside the pump casing 2.Air leakage in the suction pipeline 3.The speed is too low 4.The suction distance is too high or the suction pipeline is too long 5.Excessive leakage of mechanical seal 6.The gas in the suction pipeline cannot be discharged from the outlet	1.Add sufficient fluid storage 2.Check and eliminate any air leaks 3.Adjust the speed 4.Reduce suction or shorten the suction line 5.Repair or replace 6.Let it be expelled
ZXself priming pumpExcessive noise and vibration	1.Unstable footing 2.Pump shaft bending 3.Cavitation phenomenon 4.Severe bearing wear 5.There are impurities in the inlet pipeline 6.The main shafts of the pump and motor are not concentric	1.reinforce 2.Replace or calibrate 3.Adjust working conditions 4.replace 5.Remove debris 6.Adjust coaxiality
ZXself priming pumpInsufficient water output	1.The impeller passage and suction pipe are blocked 2.Severe wear of impeller or impeller seal 3.Insufficient power or too low speed	1.Remove blockages 2.Replace the mouth ring 3.Add sufficient power and adjust to rated speed
ZXself priming pumpExcessive shaft power consumption	1.Excessive traffic 2.The speed is too high 3.Bending of pump shaft or collision of impeller 4.The flow channel inside the pump is blocked or stuck	1.Raise export pressure 2.Reduce appropriately 3.Replace or calibrate 4.Line blockage

Please provide as much as possible for ordering:

1. Model 2. Diameter 3. Head (m) 4. Flow rate 5. Motor power (KW) 6. Speed (R/min) 7. Material without accessories 8. Voltage (V)

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