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WQ submersible sewage pump

The WQ type non clogging submersible sewage pump is a new generation of pump products developed based on the introduction of advanced foreign technology and the characteristics of domestic water pump usage. It has significant energy-saving effects, anti entanglement, non clogging, automatic installation and automatic control. It has a unique effect in the discharge of solid particles and long fiber waste.

Classification:

Agricultural irrigation

Building materials industry

Water supply and drainage and sewage discharge

E-mail:

Product Description

Product Overview

This series of pumps adopts a unique impeller structure and a new type of mechanical seal, which can effectively transport solids and long fibers. Compared with traditional impellers, the impeller of this pump adopts a single channel or double channel form, which is similar to a curved pipe with the same cross-sectional size and has very good flow characteristics. Coupled with a reasonable volute chamber, the pump has high efficiency and the impeller has undergone dynamic and static balance tests, making the pump operate without vibration.

The hydraulic performance of this pump is advanced and mature. After testing, all performance indicators of the product have reached the relevant standards and regulations. After its launch on the market, the product has been welcomed and praised by a large number of users for its unique efficacy, reliable performance, and stable quality.

Product Features

1. Adopting a large flow channel anti clogging hydraulic component design, it greatly improves the ability of pollutants to pass through, and can effectively pass through 5 times the fiber material of the pump diameter and solid particles with a diameter of about 50% of the pump diameter.

2. Reasonable design, reasonable matching motor, high efficiency, significant energy-saving effect.

3. The chrome plating treatment of the pump shaft greatly improves its corrosion resistance and wear resistance, and significantly increases the service life of the entire pump.

4. The connection between the cable and the motor adopts rubber sleeve integral vulcanization technology, which has a long-term and reliable waterproof effect.

5. The mechanical seal adopts a dual channel series seal, made of hard and corrosion-resistant tungsten carbide, which has the characteristics of durability and wear resistance, and can ensure the safe and continuous operation of the pump for more than 8000 hours.

6. The pump structure is compact, small in size, easy to move, easy to install, and does not require the construction of a pump room Dive into the water to work, greatly reducing project costs

7. There is an oil-water probe installed in the pump oil chamber. When the mechanical seal on the pump side is damaged, water enters the oil chamber and the probe generates a signal to protect the pump.

8. A fully automatic safety protection control cabinet can be equipped according to user needs to monitor pump leakage, electric leakage, overload, and overheating, ensuring reliable and safe pump operation.

9. The double rail automatic coupling installation system has brought great convenience to the installation and maintenance of pumps, and people do not have to enter and exit the sewage pit for this.

10. The float switch can automatically control the stop and start of the pump according to the required water level changes, without the need for a dedicated person to supervise.

11. Ensure that the motor operates without overload within the range of head.

12. According to the usage scenario, the motor can adopt a water jacket external circulation cooling system, which can ensure the safe operation of the electric pump in a dry state without water

13. There are two installation methods: fixed automatic coupling installation and mobile free installation, which can meet different needs.

Applicable occasions of the product

1. The discharge of severely polluted wastewater from factories and businesses.

2. Urban sewage treatment plant drainage system

3. Sewage drainage stations in residential areas.

4. Civil air defense system drainage station.

5. Wastewater discharge from hospitals and hotels.

6. Municipal engineering and construction sites.

7. Exploration and mining supporting equipment.

8. Rural biogas digesters for farmland irrigation.

9. The water supply system of a water plant.

Pump usage conditions

1. The medium temperature does not exceed 60 ℃, the density is 1.0-1.3kg/dm ³, and the pH value is within the range of 5-9.

2. For pumps without internal self circulation cooling systems, the exposed liquid level of the motor part should not exceed 1/2

3. In general, the pump must be used within the range of head to ensure that the motor is not overloaded. If it needs to be used within the full range of head, it should be specified separately when ordering for the manufacturer to manufacture.

4. The current of the pump motor during operation shall not exceed the rated current of the motor.

Model meaning

Structural Description

The WQ type unobstructed submersible sewage pump consists of a motor and a pump, which are separated by an oil isolation chamber and mechanical seal components. It is an electromechanical integrated product, and the motor and pump share the same shaft (rotor). The entire length of the water pump is short and the structure is compact. Equipped with multiple protective devices to ensure safe and reliable operation of the pump. The main functions of its components are as follows:

Signal line 1: Equipped with a fully protected water pump control cabinet to provide all-round protection for the pump, including water leakage, phase failure, short circuit, overheating, motor overload, and other items.

Motor stator 8: adopts B-level or F-level insulation.

Leakage probe 11: This component is installed in the oil chamber. When the mechanical seal is damaged and water enters the oil chamber, the probe can send a signal to the control system to protect the pump.

Mechanical seal 13: Adopting dual channel series sealing, using a new type of hard and corrosion-resistant tungsten carbide material, which has the characteristics of reliable sealing, wear resistance, and long service life.

Impeller 17: The impeller adopts a single or double channel structure, which has strong passing capacity and can pass large materials and fiber waste; Reduce blockage and entanglement faults.

Pump body 15: matched with impeller, making the pump highly efficient.

Sealing ring 18: installed at the mouth ring of the pump body. When the impeller wears out the mouth ring due to operation, the sealing ring can be replaced to ensure optimal efficiency of the pump operation.

1	The signal line	11	Oil water probe
2	Motor wiring	12	Oil chamber
3	Junction box	13	Mechanical seal
4	Motor cover	14	Rear cover
5	Bearing	15	Pump body
6	Upper shaft seat	16	Bearing
7	Motor casing	17	impeller
8	Stator	18	sealing ring
9	Shaft (rotor)	19	Chassis
10	Bearing

Performance Parameter Table

Model	Q	H	speed	power	current	pass particle maximum Positioning diameter	External dimensions ( m m )											weight
Model	(m³/h)	(m)	(rpm)	(kw)	(A)	(mm)	H	H*	H1	H1*	B3	B2	D2	d	D	D1	n1-φd1	(kg)
40(JY)WQ10-10-0.75	10	10	2860	0.75	2.0	20	350	400	300	350	320	230	190	40	130	100	4-φ14	20
40(JY)WQ8-15-1.1	8	15	2860	1.1	2.8	20	350	400	300	350	320	230	190	40	130	100	4—中14	20
40(JY)WQ12-15-1.5	12	15	2860	1.5	4.0	20	540	590	490	540	330	240	190	40	130	100	4-φ14	28
50(JY)WQ10-10-0.75	10	10	2860	0.75	2.0	20	500	550	450	500	320	230	190	50	140	110	4-φ14	22
50(JY)WQ15-8-1.1	15	8	2860	1.1	2.8	20	500	550	450	500	320	230	190	50	140	110	4-φ14	27
50(JY)WQ8-15-1.1	8	15	2860	1.1	2.8	20	500	550	450	500	320	230	190	50	140	110	4-φ14	27
50(JY)WQ15-10-1.5	15	10	2860	1.5	4.0	20	500	550	450	500	330	240	200	50	140	110	4-φ14	34
50(JY)WQ10-15-1.5	10	15	2860	15	4.0	20	500	550	450	500	330	240	200	50	140	110	4-φ14	34
50(JY)WQ15-15-2.2	15	15	2860	22	6.0	20	540	590	490	540	340	250	200	50	140	110	4-φ14	38
50(JY)Wa25-10-2.2	25	10	2860	22	6.0	25	540	590	490	540	340	250	200	50	140	110	4-φ14	38
50(JY)WQ9-22-22	9	22	2860	22	6.0	20	540	590	490	540	340	250	200	50	140	110	4-φ14	38
50(JY)WO20-18-22	20	18	2860	2.2	6.0	25	540	590	490	540	340	250	200	50	140	110	4-φ14	38
50(JY)WQ15-20-22	15	20	2860	2.2	6.0	20	540	590	490	540	340	250	200	50	140	110	4-φ14	38
50(JY)Wa20-25-3	20	25	2860	3	6.5	25	580	640	530	590	350	260	210	50	140	110	4-φ14	48
50(JY)WQ15-30-3	15	30	2860	3	6.5	20	580	640	530	590	350	260	210	50	140	110	4-φ14	48
50(JY)WQ15-35-4	15	35	2860	4	8.4	20	650	710	600	660	360	270	250	50	140	110	4-φ14	65
50(JY)WQ15-40-5.5	15	40	2860	5.5	12.0	20	680	740	630	690	390	300	250	50	140	110	4-φ14	78
50(JY)WO20-30-5.5	20	30	2860	5.5	12.0	25	680	740	630	690	390	300	250	50	140	110	4-φ14	78
50(JY)WO20-40-7.5	20	40	2860	7.5	16.8	25	680	740	630	690	370	280	250	50	140	110	4-φ14	115
50(JY)WO25-35-7.5	25	35	2860	7.5	16.8	25	680	740	630	690	370	280	250	50	140	110	4-φ14	115
65(JY)Wa25-7-1.5	25	7	2860	1.5	4.0	25	550	600	450	500	330	230	200	65	160	130	4-φ14	28
65(JY)Wa35-7-2.2	35	7	2860	22	6.0	25	550	600	500	550	350	250	230	65	160	130	4-φ14	38
65(JY)WO25-10-22	25	10	2860	2.2	6.0	25	550	600	500	550	350	250	200	65	160	130	4-φ14	38
65(JY)WO25-15-3	25	15	2860	3	6.5	25	620	670	570	620	350	250	200	65	160	130	4-φ14	50
65(JY)WO37-13-3	37	13	2860	3	6.5	25	620	670	570	620	350	250	200	65	160	130	4-φ14	50
65(JY)W40-10-3	40	10	2860	3	6.5	25	620	670	570	620	350	250	200	65	160	130	4-φ14	50
65(JY)Wa20-25-4	20	25	2860	4	8.4	25	650	700	600	650	370	270	240	65	160	130	4-φ14	63
65(JY)WQ30-30-5.5	30	30	2860	5.5	12.0	25	710	770	660	720	370	270	250	65	160	130	4-φ14	78
65(JY)WQ20-40-7.5	20	40	2860	7.5	16.8	25	800	860	760	820	450	350	250	65	160	130	4-φ14	115
65(JY)WO20-60-11	20	60	2860	11	23.6	25	1000	1060	950	1010	630	530	270	65	160	130	4φ14	150
80(JY)W45-9-22	45	9	2860	2.2	6.0	30	550	600	500	550	380	270	230	76	190	150	4-φ18	45
80(JY)WQ43-13-3	43	13	2860	3	6.5	30	620	680	570	630	380	270	230	76	190	150	4φ18	50
80(JY)WO40-15-4	40	15	2860	4	8.4	30	680	740	630	690	450	340	230	76	190	150	4-φ18	80
80(JY)WQ50-10-4	50	10	2860	4	8.4	30	680	740	630	690	450	340	230	76	190	150	4-φ18	60
80(JY)Wa30-30-5.5	65	15	2860	5.5	12.0	30	730	790	680	740	440	330	250	76	190	150	4-φ18	115
80(JY)WQ40-22-5.5	40	22	2880	5.5	12.0	30	820	880	770	830	460	350	250	76	190	150	4-φ18	80
80(JY)WQ40-30-7.5	40	30	2860	7.5	16.8	30	820	880	770	830	460	350	360	76	190	150	4-φ18	115

Model	0	H	speed	power	current	pass particle maximum diameter	External dimensions(mm)											weight
Model	m³/h)	(m)	(rpm)	(kW)	(A)	(mm)	H	H*	H1	H1*	B3	B2	D2	d	D	D1	n1-φd1	(kg)
80(JY)W040-45-11	40	45	2860	11	23.6	30	850	910	780	840	500	390	360	76	190	150	4-φ18	200
100(JY)WQ40-8-2.2	40	8	2860	2.2	6.0	30	550	600	500	550	430	270	230	100	210	170	4-巾18	45
100(JY)WQ50-7-2.2	50	7	2860	2.2	6.0	30	550	600	500	550	430	270	230	100	210	170	4-φ18	45
100(JY)WQ60-9-3	60	9	2860	3	6.5	30	600	660	550	610	430	270	230	100	210	170	4-φ18	50
100(JY)WQ65-10-4	65	10	2860	4	8.4	30	680	740	630	69C	480	320	230	100	210	170	4-φ18	60
100(JY)WQ65-15-5.5	65	15	2860	5.5	12.0	30	730	790	680	740	480	320	250	100	210	170	4-φ18	83
100(JY)W065-20-7.5	65	20	2860	7.5	16.8	30	850	910	800	860	480	320	360	100	210	170	4-φ18	116
100(JY)WQ80-25-11	80	25	1450	11	23.6	35	1000		950		710	550	420	100	210	170	4-φ18	215
100(JY)WQ80-30-15	80	30	1450	15	32.0	35	1020		920		710	550	420	100	210	170	4-φ18	255
100(JY)WO80-35-18.5	80	35	1450	18.5	37.0	35	1060		950		710	550	420	100	210	170	4-φ18	355
100(JY)WO45-22-7.5	45	22	2860	7.5	16.8	30	800	860	750	810	480	320	360	100	210	170	4-φ18	115
100(JY)WQ100-6-4	100	6	2860	4	8.4	35	680	740	630	690	470	310	230	100	210	170	4-φ18	65
100(JY)WQ100-10-5.5	100	10	2860	5.5	12.0	35	730	790	680	740	480	320	250	100	210	170	4-φ18	85
100(JY)WQ100-15-7.5	100	15	2860	7.5	16.8	35	800	860	750	810	480	320	360	100	210	170	4-φ18	116
100(JY)WO80-15-7.5	80	15	2860	7.5	16.8	35	800	860	750	810	480	320	360	100	210	170	4-小18	115
100(JY)W0100-25-11	100	25	1450	11	23.6	35	940		900		710	550	420	100	210	170	4-φ18	220
100(JY)WQ100-30-15	100	30	1450	15	32.0	35	970		920		710	550	420	100	210	170	4-φ18	255
100(JY)WQ100-35-18.5	100	35	1450	18.5	37.0	35	990		950		710	550	420	100	210	170	4-φ18	355
150(JY)WQ100-7-5.5	100	7	2860	5.5	12.0	35	800	860	750	810	550	350	250	150	265	225	8-φ18	85
150(JY)W0145-9-7.5	145	9	2860	7.5	16.8	45	800	860	750	810	550	350	360	150	265	225	8-φ18	120
150(JY)WQ100-10-7.5	100	10	2860	7.5	16.8	35	800	860	750	810	550	350	360	150	265	225	8-φ18	120
150(JY)WQ150-12-11	150	12	1450	11	23.6	45	1050		1000		820	620	420	150	265	225	8-φ18	230
150(JY)WQ180-15-15	180	15	1450	15	32.0	45	1050		1000		820	620	420	150	265	225	8-φ18	280
150(JY)WQ180-20-18.5	180	20	1450	18.5	37.0	45	1080		1030		820	620	420	150	265	225	8-φ18	365
150(JY)WQ150-24-18.5	150	24	1450	18.5	37.0	45	1080		1030		820	620	420	150	265	225	8-φ18	365
150(JY)W0180-25-22	180	25	1450	22	45.0	45	1080		1030		820	620	420	150	265	225	8-φ18	450
150(JY)WQ200-10-15	200	10	1450	15	32.0	45	1050		1000		820	620	420	150	265	225	8-418	28
150(JY)WQ200-15-18.5	200	15	1450	18.5	37.0	45	1080		1030		820	620	420	150	265	225	8-中18	400
150(JY)WO200-20-22	200	20	1450	22	45.0	45	1080		1030		820	620	420	150	265	225	8-φ18	450
150(JY)WO200-25-30	200	25	1450	30	60.0	45	1240		980		850	650	470	150	265	225	8-φ18	500
150(JY)WQ200-30-37	200	30	1450	37	75.0	45	1240		980		850	650	470	150	265	225	8-φ18	600
150(JY)WQ150-35-37	150	35	1450	37	75.0	40	1240		980		850	650	470	150	265	225	8-φ18	600
150(JY)WQ180-40-45	180	40	1450	45	90.0	40	1290		1030		850	650	470	150	265	225	8-φ18	900
200(JY)W0300-7-11	300	7	1450	11	23.6	50	1120		1070		890	610	420	200	320	280	8-φ18	280
200(JY)W0300-8-15	300	8	1450	15	32.0	50	1060		900		890	610	420	200	320	280	8-φ18	330
200(JY)WQ250-11-15	250	11	1450	15	32.0	50	1120		1070		890	610	420	200	320	280	8-φ18	330
200(JY)WQ250-15-18.5	250	15	1450	18.5	37.0	50	1020		800		890	610	420	200	320	280	8-φ18	450

Model	Q	H	speed	power	current	pass particle maximum diameter	External dimensions(mm)											weight
Model	(m³/h)	(m)	(rpm)	(kW)	(A)	(m)	H	H*	H1	H1*	B3	B2	D2	d	D	D1	n1-φd1	(kg)
200(JY)WQ300-9-18.5	300	9	1450	18.5	37.0	50	1020		800		890	610	420	200	320	280	8-中18	450
200(JY)WQ400-10-22	400	10	1450	22	45.0	50	1070		850		890	610	420	200	320	280	8-φ18	460
200(JY)WQ300-15-22	300	15	1450	22	45.0	50	1070		850		890	610	420	200	320	280	8-φ18	460
200(JY)WQ250-22-30	250	22	1450	30	60.0	50	1240		980		900	620	470	200	320	280	8-φ18	650
200(JY)WQ360-15-30	360	15	1450	30	60.0	50	1240		980		900	620	470	200	320	280	8-φ18	680
200(JY)WQ400-13-30	400	13	1450	30	60.0	50	1240		980		900	620	470	200	320	280	8-中18	680
200(JY)WQ300-20-37	300	20	1450	37	75.0	50	1240		980		900	620	470	200	320	280	8-φ18	850
200(JY)W0350-25-37	350	25	1450	37	75.0	50	1240		980		900	620	470	200	320	280	8-φ18	850
200(JY)WO400-18-37	400	18	1450	37	75.0	50	1240		980		900	620	470	200	320	280	8-中18	850
200(JY)WQ250-35-45	250	35	1450	45	90.0	45	1290		1030		900	620	470	200	320	280	8-φ18	920
200(JY)WO400-25-45	400	25	1450	45	90.0	50	1290		1030		900	620	470	200	320	280	8-φ18	920
200(JY)W0250-40-55	250	40	1450	55	110.0	45	1450		1050		1050	770	560	200	320	280	8-φ18	1000
200(JY)WO400-30-55	400	30	1450	55	110.0	45	1450		1050		1050	770	560	200	320	280	8-φ18	1000
200(JY)W0350-40-75	350	40	1450	75	150.0	45	1520		1120		1050	770	560	200	320	280	8-418	1200
250(JY)WQ600-9-30	600	9	1450	30	60.0	55	1300		1050		980	640	470	250	375	335	12-中18	550
250(JY)WO600-12-37	600	12	1450	37	75.0	55	1300		1050		980	640	470	250	375	335	12-φ18	650
250(JY)WO800-12-45	800	12	1450	45	90.0	60	1350		1100		980	640	470	250	375	335	12-中18	850
250(JY)WQ600-15-45	600	15	1450	45	90.0	55	1350		1100		980	640	470	250	375	335	12-φ18	850
250(JY)WQ600-20-55	600	20	1450	55	110.0	55	1450		1050		1210	870	560	250	375	335	12-中18	1300
250(JY)WQ600-25-75	600	25	1450	75	150.0	55	1520		1120		1210	870	560	250	375	335	12-φ18	1500
250(JY)WQ600-30-90	600	30	1450	90	180.0	55	1570		1170		1210	870	560	250	375	335	12-φ18	1600
300(JY)WQ800-8-37	800	8	1450	37	75.0	60	1400		1150		1200	800	470	300	440	395	12-φ22	850
300(JY)WQ500-15-45	500	15	1450	45	90.0	55	1450		1200		1200	800	470	300	440	395	12-φ22	1200
300(JY)WQ800-12-45	800	12	1450	45	90.0	60	1450		1200		1200	800	470	300	440	395	12-φ22	1200
300(JY)WQ600-20-55	600	20	1450	55	110.0	55	1480		1080		1270	870	560	300	440	395	12-φ22	1350
300(JY)WQ800-20-75	800	20	1450	75	150.0	60	1520		1120		1270	870	560	300	440	395	12-φ22	1450
300(JY)WQ950-20-90	950	20	1450	90	150.0	65	1570		1170		1270	870	560	300	440	395	12-φ22	1450
300(JY)WQ1000-25-110	1000	25	1450	110	220.0	70	2200		2100		1900	1500	600	300	440	395	12-φ22	1800
350(JY)WQ1500-7-45	1500	7	1450	45	90.0	80	2100		2100		1880	1380	500	350	490	445	12-φ22	1350
350(JY)MQ1100-10-55	1100	10	1450	55	110.0	75	2150		2100		1880	1380	560	350	490	445	12-φ22	1380
350(JY)WQ1200-13-75	1200	13	1450	75	150.0	75	2150		2100		1900	1400	560	350	490	445	12-φ22	1450
350(JY)W01300-10-75	1300	10	1450	75	150.0	75	2150		2100		1900	1400	560	350	490	445	12-φ22	1450
350(JY)WG1200-15-90	1200	15	1450	90	180.0	75	2190		2150		1950	1450	560	350	490	445	12-φ22	1800
350(JY)WQ1130-18-90	1130	18	1450	90	180.0	75	2190		2150		1950	1450	560	350	490	445	12-φ22	1800

Installation size

serial number	Model	Flange connection sizePN6(mm)			Coupling chassis dimensions (m)					G	H2	H3	L	L1	m	φe	E
serial number	Model	D	D1	n1-φd1	A	A1	B	B1	n2-φd2	G	H2	H3	L	L1	m	φe	E
1	50(JY)WQ	140	110	4-φ14	197	168	285	206	4-φ16	90	250	160	265	220	50	13	550×550
2	65(JY)WQ	160	130	4-φ14	238	200	320	240	4-φ16	130	265	165	280	235	50	13	650×600
3	80(JY)Wo	190	150	4-中18	278	238	354	260	4-φ18	165	285	165	315	260	50	13	650×600
4	100(JY)Wo	210	170	4-φ18	320	260	375	300	4-φ18	175	305	185	410	315	60	15	750×650
5	150(JY)WQ	265	225	8-φ18	400	300	410	350	4-φ18	190	480	200	410	260	60	15	1000×800
6	200(JY)WO	320	280	8-φ18	400	300	450	350	4-φ18	230	550	200	410	260	60	15	1300×900
7	250(JY)WO	375	335	12-φ18	460	360	560	430	4-φ24	230	630	200	410	260	60	15	1600×1300
8	300(JY)WO	440	395	12-φ22	600	540	600	540	4-中24	375	650	250	700	150	150	20	1600×1300
9	350(JY)wo	490	445	12-φ22	600	540	600	540	4-φ24	390	700	250	700	150	150	24	1600×1300

Installation System Instructions

1. Automatic coupling device system

Suitable for long-term fixed use scenarios, it has the advantages of quick installation, easy detection and maintenance. The system uses a specially designed base, fixed at the bottom of the sewage pit, connected to the outlet pipe, and equipped with supporting blocks at the top of the pool. The two are connected by a guide rod, and the water pump is connected to a specific bracket. It reaches the base along the guide rod, automatically couples and seals with it, and automatically falls off when lifted.

2. Mobile installation system

It is supported by a bracket and can work by connecting the water outlet hose. This method is mainly used for emergency rescue or maintenance construction needs.


Fixed automatic installation	Mobile installation

Pump usage method and precautions

1. Before using the pump, carefully check whether the cables are damaged, whether the fasteners are loose or detached, and whether the pump is deformed or damaged during transportation, storage, and installation.

2. Use a 500V megohmmeter to measure the insulation resistance between the same and relative ground of the electric pump motor. The value should not be less than 2 megohms. Otherwise, the motor stator winding should be dried at a temperature not exceeding 120 ℃.

The installation of this series of pumps comes in two types: fixed and mobile. When using fixed automatic installation, the chain cable should be threaded into two lifting ring screws or lifting plates (offset from the pump outlet, and its connection should be parallel to the pump outlet) to lift the electric pump up and down. Slowly and evenly slide down along the guide rail until it automatically couples into place. When using mobile installation, first cover the hose and thread the chain rope into two lifting rings to lift the electric pump up and down. Be careful not to use the cable as a rope to avoid danger.

4. The rotation direction of the pump after connection is counterclockwise when viewed from the inlet. If the electric pump is reversed, simply swap any two wires in the cable to adjust the wiring position.

5. The grounding wire of the casing of the electric pump must be strictly connected according to relevant regulations. In order to ensure personal safety during use, it is strictly prohibited to install or move people in the vicinity while the electric pump is running, in case of accidents caused by leakage of the electric pump.

6. Unless there are special circumstances, the electric pump must be equipped with a fully automatic water pump control cabinet. Do not directly connect to the power grid or use a knife switch to connect the power supply to ensure the normal operation of the electric pump.

7. Do not operate the electric pump in a low head steady state for a long time (generally, the head should not be less than 60% of the rated head). It is best to control it within the recommended head range to prevent the electric pump from overloading and burning out the motor.

Pumps without self circulating cooling devices are strictly prohibited from being exposed to the water surface for long-term operation to prevent overheating and damage to the electric pump.

Maintenance

1. The electric pump should be managed and used by a dedicated person, and the insulation resistance between the pump winding and the casing should be checked regularly to ensure that it is normal.

2. After each use, especially for thicker and more viscous slurries, the electric pump should be placed in clean water and run for several minutes to prevent sedimentation inside the pump and ensure its cleanliness.

3. If the electric pump is not used for a long time, it should be taken out of the water and not soaked in water for a long time to reduce moisture in the motor stator winding

Opportunity to increase the service life of the electric pump.

4. Under normal conditions, the pump should be filled or replaced with oil (10-30 octane oil) in the oil chamber every 300-500 hours of use to maintain good lubrication of the mechanical seal and improve its service life.

After disassembling and repairing the electric pump, the casing components must undergo a 0.2MPa air tightness test to ensure reliable motor sealing.

The sealing ring between the impeller and the pump body has a sealing function. If the seal is damaged, it will directly affect the performance of the pump and should be replaced if necessary.

Common fault analysis and troubleshooting methods

Fault phenomenon

Root cause analysis

Exclusion method

Insufficient flow or no water output

1. Impeller rotation error

2. Is the valve open and intact

3. The pipeline impeller is blocked

4. Speed too low

5. Head too high

6. The density of the pumping medium is relatively high

7. High viscosity of the medium

8. Damaged sealing ring (at the mouth ring)

1. Adjust the rotation direction of the impeller

2. Check, repair, and eliminate

3. Clean up debris

4. Check electrical equipment and circuits

5. Change the pump or reduce the head

6. Dilute with water to reduce concentration

7. Reduce viscosity

8. Replace

Unstable operation

1. Unbalanced impeller

2. Bearing damage

1. Send to the manufacturer for replacement or calibration

2. Replace

The pump cannot start

1. Lack of phase

2. Impeller stuck

3. Winding, connector or cable open circuit

4. Stator winding burnt out

5. Electrical control malfunction

1. Check the circuit for repair

2. Remove debris

3. Check and repair with an ohmmeter

4. Repair and replace the winding

5. Repair or replace

Current too large

1. Low working voltage

2. Pipeline and impeller are blocked

3. The height or viscosity of the liquid being pumped is relatively high

4. Using a low head

1. Adjust the working voltage

2. Clean up blockages in pipelines and impellers

3. Change density or viscosity

4. Reduce flow and increase head

Low insulation electrical group

1. Leakage at the power supply terminal of the cable

2. Cable damage

3. Mechanical seal wear leads to leakage

4. Failure of each O-ring seal

5. The casing is corroded by the medium and leaks water

1. Tighten the compression nut
2. Replace

3. Replace

4. Replace

5. Repair

Pump electrical control system

QZD-2 series water pump control cabinet

The QZD-2 series control cabinet controls the electrical part of a single pump ranging from 0.75 to 15KW, with the ability to control the start and stop of the pump, monitor and protect the pump motor from overload, short circuit, phase loss, overheating, phase failure, and water leakage.

1. Technical parameters of QZD-2 series control cabinet

Model	Rated working voltage(V)	Control the electric motor maximumpower(KW)	rated work current(A)
QZID-2-4	380	4	8.5
QZD-2-5	380	5.5	11.5
QZD-2-7.5	380	7.5	15.5
QZD-2-11	380	11	22
QZ.D-2-15	380	15	30

2 、QZD-2 series control cabinet External dimensions

JJ1 series water pump control cabinet

The JJ1 series water pump control cabinet controls the automatic self coupling and pressure reduction starting of the 15-110kW water pump motor. It has multiple protection functions such as short circuit, phase loss, overload, etc. for the motor, as well as protection for motor stator overheating and water pump oil chamber leakage.

3 、Technical parameters and specifications of JJ1 series control cabinet External dimensions

Model	motor power (KW)	Work current parameter value(A)	A (mm)	B (mm)	c (mm)	D (mm)	H (mm)
JJ1-15	15	30	520	340	495	310	1040
JJ1-18.5	18.5	37	520	340	495	310	1040
JJ1-22	22	44	520	340	495	310	1040
JJ1-30	30	60	520	340	495	310	1240
JJ1-37	37	72	520	340	495	310	1240
JJ1-45	45	85	520	340	495	310	1240
JJ1-55	55	105	600	380	560	330	1500
JJ1-75	75	138	600	380	560	330	1500
JJ1-90	90	170	600	380	560	330	1700
JJ1-110	110	204	600	380	560	330	1700

Tag:

WQ submersible sewage pump

About Us

Hebei Baixinda Industrial Water Pump Manufacturing Co., Ltd. is a professional manufacturer of new material equipment and wear-resistant spare parts integrating R&D, production, sales and service. It mainly serves industries such as mining, metallurgy, coal, power, environmental protection, chemical engineering and papermaking.
The company is committed to the research and application of high-performance ceramic wear-resistant and corrosion-resistant materials as well as ceramic composite materials to enhance the performance, reliability and service life of equipment, effectively save energy and reduce emissions, and improve the operation rate and operational efficiency of equipment. The new ceramic materials developed by the company have many advantages such as wear resistance, corrosion resistance, economy and environmental protection. They have partially replaced traditional metal materials, reduced the operation costs in industries such as mining, and achieved remarkable effects in energy conservation and environmental protection.