0086-15067829788

Symptom Possible cause Remedy

1. The pump does not produce water. a. The inlet and outlet valves are not opened, the inlet and outlet pipes are blocked, and the impeller flow passage is blocked. a. Check and remove obstructions.

b. The motor is running in the wrong direction and the motor is out of phase. b. Adjust the motor direction and return to the motor wiring.

c. The suction pipe leaks. c. Tighten the sealing surfaces to remove air.

d. The pump is not filled with liquid and there is air in the pump chamber. d. Open the top cover of the pump or open the exhaust valve to drain the air.

e. The imported water supply is insufficient, the suction stroke is too high, and the bottom valve leaks. e, stop inspection, adjustment (connected to the water pipe or with the use of suction strokes are prone to sub- phenomenon)

f, the pipeline resistance is too large. f. Reduce the curve of the pipeline and re-select the pump.

2, the pump flow is insufficient a, first check according to the reasons. a, first press I to exclude.

b. Pipes and impellers are partially blocked, scale deposits, and valve opening is insufficient. b. Remove obstructions and readjust the valve opening.

c, the voltage is low, the speed does not meet the requirements. c, voltage regulation.

d, impeller wear d, replace the impeller.

3, the power is too large a, exceed the rated flow use a, adjust the flow, close the small outlet valve.

b, the suction stroke is too high b, reduce the suction stroke

c, pump bearing wear c, replace the bearing

d, improper pump selection d, re-select pump

4, noise vibration a, the pipeline support is unstable a, stable pipeline

b, the liquid is mixed with gas b, increase the suction pressure, exhaust

c, generate cavitation c, reduce the degree of vacuum

d, bearing wear d, replace the bearing

e, motor overload heating operation e, adjustment by 5

5. Motor heating a, the flow is too large, overload operation a, close the small outlet valve

b, touch rub b, check and eliminate

c, motor bearing damage c, replace the bearing

d, the voltage is low d, voltage regulation

6, the water pump leaks a, mechanical seal wear a, replace

b, the pump body has sand holes or cracks b, welding repair or replacement

c, the sealing surface is not flat c, trimming

d, the installation bolts are loose d, fastening

2. The installation pipeline cannot be directly supported on the inlet and outlet flanges of the pump. Support points must be provided to prevent deformation damage. The imported pipeline should be changed as little as possible, and the road will be hydraulically lost, 90. The elbow shall not exceed two, and the suction pipe shall not leak air, otherwise it will affect the time of vacuuming or liquid discharge or the occurrence of non-discharge and flow, and insufficient head.

    3. Open the liquid injection cover before the first use, fill the PFZ and PVZ corrosion-resistant self-priming pump body, and tighten the liquid injection cover. Do not leak air. It is forbidden to take off and reverse.

    4. Pumps with bracket bearing housings must be filled with cooling oil to half of the mirror surface before use. Otherwise, the bearings should be burned out and the oil should be changed regularly.

    5. The conveying liquid can not have sediment or long soft fiber to prevent damage to the impeller and mechanical seal.

    6, FPZ plastic corrosion-resistant self-priming pump outlet should be installed with a valve, first shut the valve and then stop, first boot and then open the valve.

■ FPZ plastic self-priming pump maintenance and repair:

    1. After using for a period of time, it is found that the leakage of the mechanical seal end face of the self-priming pump is caused by the end face wear. Consult the moving ring to loosen the two screws of the semi-circular stainless steel. It is suitable for forward propulsion, and the pump shaft can be rotated by hand to easily and without resistance. For better, too loose will cause leakage, too tight and easy to wear and affect the life of the mechanical seal.

    2. It is better to start 8~16 hours continuously every day. The spare parts for continuous operation for 24 hours shall be replaced and repaired regularly. The replacement period is generally two to three months, and the expiration shall be taken down for inspection. Does not affect production, non-continuous operation of production can be repaired at any time.

    3. If the conveying medium is greater than 1.2, the motor should be equipped separately, otherwise it will affect the head or cause the motor to burn out.

    4. The disassembly sequence is: remove the motor, bracket, bottom plate screw, remove the mechanical seal cover, cool the water nozzle, loosen the moving ring snap ring bolt, static ring pressure plate bolt, front and rear pump cover bolts, and the impeller shaft pull rod set screw Loosen, unscrew 3~5mm, tap the rod with a hammer, loosen the impeller, remove the tie rod, impeller and mechanical seal. When unloading the mechanical seal, it should be manually operated. It can not be knocked with metal tools to prevent damage.

    5. Overhaul: remove the dirt in the pump casing, front and rear pump cover, impeller and mechanical seal assembly of the self-priming pump, and clean it. If there is no damage, continue to use it. Check whether there are any damage on the end faces of the mechanical seal. The fine-grained phase sand with less scratching is placed on the flat plate for smoothing and can be used continuously.

Model meaning:

For example: 25FPZ-10

25-Intake diameter (mm)

FP-plastic corrosion-resistant centrifugal pump

Z-self-priming performance

10-head (mm)

FPZ type corrosion-resistant self-priming centrifugal pump performance parameters:

型号	口径(mm)		流量 (m3/h)	扬程 (m)	电机功率(kw)	转速 (r/min)		自吸高度(m)
	进口	出口
32FP-11	32	25	4	11	0.75	2900	/
40FP-20	40	32	12.5	20	1.5	2900	/
50FP-22	50	40	13	22	2.2	2900	/
65FP-25	65	50	20	25	4	2900	/
80FP-28	80	65	50	28	5.5	2900	/
80FP-32	80	65	50	32	7.5	2900	/
25FPZ-10(自吸)	25	25	2.5	10	0.75	2900	3
32FPZ-11(自吸)	32	25	3.5	11	0.75	2900	3
40FPZ-18(自吸)	40	32	11	18	1.5	2900	4
50FPZ-20(自吸)	50	40	13	20	2.2	2900	4
65FPZ-25(自吸)	65	50	20	25	4	2900	4
80FPZ-32(自吸)	80	65	50	32	7.5	2900	4