QJ Submersible Deep Well Pump

Product Introduction:

The QJ submersible deep well pump is a water-lifting device that operates by directly connecting the motor with the pump and submerging it into water. It is suitable for extracting underground water from deep wells and can also be used for water lifting projects in rivers, reservoirs, and water channels. Mainly used for irrigation in farmland and mountainous areas, it can also supply water for urban areas, factories, railways, mines, and construction sites.

Product Features:

The motor and pump are integrated and operate submerged in water, ensuring safety and reliability.

There are no special requirements for well pipes and delivery pipes (i.e., steel pipes, ash pipes, and soil wells can be used; steel pipes, rubber pipes, plastic pipes, etc., can be used as delivery pipes under allowable pressure).

Easy to install, use, and maintain, occupies a small area, and does not require the construction of a pump house.

Simple structure, saving raw materials. The suitability of the submersible pump for use is directly related to proper management and its service life.

Conditions of Use:

Rated frequency is 50Hz, and the rated voltage is 380±5% volts for three-phase AC power supply.

The water inlet of the pump must be below 1 meter of the dynamic water level, but the submersible depth must not exceed 70 meters below the static water level, and the lower end of the motor must be at least 1 meter above the bottom of the well.

The water temperature should generally not exceed 20°C.

Water quality requirements: (1) The sand content in water should not exceed 0.01% (by weight). (2) The pH value should be in the range of 6.5 to 8.5. (3) Chloride ion content should not exceed 400 mg/L.

Requirements for well integrity and smooth wall surface.

Structural Description:

The QJ deep well pump consists of a water pump, submersible motor (including cable), delivery pipe, and control switch. The submersible pump is a single-suction multistage vertical centrifugal pump, and the submersible motor is a closed-filled wet-type vertical three-phase cage asynchronous motor. The motor and pump are directly connected through a claw-type or single-gear coupling. Different specifications of three-core cables are provided. The starting equipment includes air switches and self-reducing starters of different capacity levels. The delivery pipe is made of steel pipes of different diameters, connected by flanges, and high-lift pumps are controlled by gate valves.

Each stage guide vane of the submersible pump is equipped with a rubber bearing. The impeller is fixed on the pump shaft with a tapered sleeve, and the guide vanes are threaded or bolted together.

The high-lift submersible pump is equipped with a check valve at the top to prevent unit damage caused by water hammer during shutdown.

The upper part of the submersible motor shaft is equipped with a labyrinth sand-prevention device and two reverse-installed skeleton oil seals to prevent sand from entering the motor.

The submersible motor adopts water-lubricated bearings. The lower part is equipped with a rubber pressure-regulating diaphragm and pressure-regulating spring to form a pressure-regulating chamber, adjusting the pressure changes caused by temperature. The motor winding adopts polyethylene insulation, and the cable adopts durable consumer-grade waterproof electromagnetic wire. The cable connection method follows the QJ cable jointing process, where the insulation of the joint is stripped and scraped clean, securely welded, wrapped with raw rubber, wrapped with 2-3 layers of waterproof adhesive tape, and covered with 2-3 layers of waterproof cloth or bonded with water-based adhesive tape to prevent water leakage.

The motor is sealed with precision stop bolts, and the cable outlet is sealed with a rubber pad.

There is a water injection hole at the upper end of the motor, an air release hole, and a water discharge hole at the lower end.

The lower part of the motor is equipped with upper and lower thrust bearings, with grooves on the upper thrust bearing for cooling, and it is matched with a stainless steel thrust plate that withstands the axial force of the pump.

Serial number	Applicable	Model	Traffic	General Yang Cheng	Speed	Efficiency	Motor power	Large unit
Serial number	Small well diameter	（model）	(cubic meters/hour)	(meters)	(rev/min)	(%)	(kilowatt)	Outer diameter (mm)
1	150	150QJ(R)5-10O	5	100	2850	60	3	136
2		150OJ(R)5-150		150			4
3		1500J(R)5-200		200			5.5
4		150QJ(R)5-250		250			7.5
5		15OQJ(R)5-300		300			9.2
6		150QJ(R)5-350		350			11
7		15OQJ(R)5-400		400			13
8		150QJ(R)10-50		50			3
9		1500J(R)10-100		100			5.5
10		150QJ(R)10-150		150			7.5
11	150	15OQJ(R)10-200	10	200	2850	64	11	136
12		15OQJ(R)10-250		250			13
13		15OQJ(R)10-300		300			15
14		1500J(R)10-350		350			18.5
15		15OQJ(R)20-26		26			3
16		1500J(R)20-33		33			3
17		15OQJ(R)20-39		39			4
18		15OQJ(R)20-52		52			5.5
19		15OQJ(R)20-72		72			7.5
20		15OQJ(R)20-78		78			7.5
21	150	15OQJ(R)20-85	20	85	2850	65	9.2	136
22		15OQJ(R)20-98		98			9.2
23		15OQJ(R)20-104		104			11
24		15OQJ(R)20-111		111			11
25		15OQJ(R)20-124		124			13
26		15OQJ(R)20-137		137			15
27		150QJ(R)20-143		143			15
28		15OOJ(R)20-156		156			15
29		15OQJ(R)20-176		176			18.5
30		15OQJ(R)20-182		182			18.5
31		15OQJ(R)32-18		18			3
32		15OQJ(R)32-24		24			4
33		15OQJ(R)32-30		30			5.5
34		15OQJ(R)32-36		36			5.5
35		15OQJ(R)32-42		42			7.5
36	150	15OQJ(R)32-54	32	54	2850	66	9.2	136
37		15OQJ(R)32-66		66			11
38		1500J(R)32-72		72			13
39		150QJ(R)32-84		84			13
40		15OOJ(R)32-90		90			15
41		15OQJ(R)32-96		96			15
42		15OQJ(R)32-108		108			18.5
43	200	200QJ(R)20-40	20	40	2850	67	4	136
44		2OOQJ(R)20-54		54			5.5
45		2OOQJ(R)20-81		81			7.5
46		2000J(R)20-93		93			9.2
47		2OOQJ(R)20-108		108			11
48		2OOQJ(R)20-121		121			13
49		2000J(R)20-148		148			15
50		200QJ(R)20-175		175			18.5

Serial number	Applicable	Model	Traffic	General Yang Cheng	Speed	Efficiency	Motor power	Large unit
Serial number	Small well diameter	（model）	(cubic meters/hour)	(meters)	(rev/min)	(%)	(kilowatt)	Outer diameter (mm)
51	200	2OOQJ(R)20-202	20	202	2850	67	22	184
52		200QJ(R)20-243		243			25
53		200QJ(R)20-270		270			30
54		2OOQJ(R)20-297		297			30
55		200QJ(R)20-351		351			37
56		2000J(R)20-391		391			45
57		2000J(R)32-26		26			4
58		2000J(R)32-39		39			5.5
59		2000J(R)32-52		52			7.5
60		2000J(R)32-65		65			9.2
61	200	2000J(R)32-78	32	78	2850	70	11	184
62		2000J(R)32-91		91			13
63		2OOQJ(R)32-104		104			15
64		2000J(R)32-130		130			18.5
65		200QJ(R)32-143		143			22
66		2OOQJ(R)32-156		156			25
67		2OOQJ(R)32-169		169			25
68		2OOQJ(R)32-195		195			30
69		2OOQJ(R)32-234		234			37
70		2OOQJ(R)32-247		247			37
71	200	2000J(R)32-299	50	299	2850	74	45	184
72		2000J(R)50-26		26			5.5
73		200QJ(R)50-39		39			9.2
74		2000J(R)50-52		52			11
75		2OOQJ(R)50-65		65			15
76		200QJ(R)50-78		78			18.5
77		200QJ(R)50-91		91			22
78		2000J(R)50-104		104			25
79		2000J(R)50-130		130			30
80		200QJ(R)50-156		156			37
81		2OOQJ(R)50-182		182			45
82		2000J(R)80-22		22			7.5
83		2OOQJ(R)80-33		33			11
84		2OOQJ(R)80-44		44			15
85		200QJ(R)80-55		55			18.5
86	200	2OOQJ(R)80-66	80	66	2850	75	22	184
87		200QJ(R)80-77		77			30
88		200QJ(R)80-88		88			30
89		2000J(R)80-99		99			37
90		2OOQJ(R)80-121		121			45
91	250	250QJ(R)50-20	50	20	2875	73	5.5	233
92		25OQJ(R)50-40		40			9.2
93		250QJ(R)50-60		60			13
94		25OQJ(R)50-80		80			18.5
95		2500J(R)50-100		100			22
96		2500J(R)50-120		120			25
97		2500J(R)50-140		140			30
98		25OQJ(R)50-160		160			37
99		250QJ(R)50-200		200			45
100		2500J(R)50-240		240			55

Serial number	Applicable	Model	Traffic	General Yang Cheng	Speed	Efficiency	Motor power	Large unit
Serial number	Small well diameter	（model）	(cubic meters/hour)	(meters)	(rev/min)	(%)	(kilowatt)	Outer diameter (mm)
101	250	250QJ(R)50-280	50	280	2875	73	63	233
102		250QJ(R)50-320		320			75
103		250QJ(R)50-360		360			90
104		250QJ(R)50-400		400			90
105		250QJ(R)50-440		440			100
106		250QJ(R)50-480		480			110
107		250QJ(R)80-20		20			7.5
108		250QJ(R)80-40		40			15
109		250QJ(R)80-60		60			22
110		250QJ(R)80-80		80			30
111	250	250QJ(R)80-100	80	100	2875	75	37	233
112		250QJ(R)80-120		120			45
113		250QJ(R)80-140		140			55
114		250QJ(R)80-160		160			55
115		250QJ(R)80-180		180			63
116		250QJ(R)80-200		200			75
117		250QJ(R)80-240		240			90
118		250QJ(R)80-280		280			100
119		250QJ(R)80-320		320			110
120		25OQJ(R)100-18		18			7.5
121	250	25OQJ(R)100-36	100	36	2875	75	15	233
122		25OQJ(R)100-54		54			25
123		250QJ(R)100-72		72			30
124		25OQJ(R)100-90		90			37
125		250QJ(R)100-108		108			45
126		25OQJ(R)100-126		126			55
127		250QJ(R)100-144		144			63
128		25OQJ(R)100-162		162			75
129		250QJ(R100-180		180			75
130		250QJ(R)100-198		198			90
131		25OQJ(R)100-216		216			100
132		250QJ(R)100-252		252			110
133		25OQJ(R)125-16		16			9.2
134		250QJ(R)125-32		32			18.5
135		250QJ(R)125-48		48			25
136	250	250QJ(R)125-64	125	64	2875	76	37	233
137		25OQJ(R)125-80		80			45
138		250QJ(R)125-96		96			55
139		250QJ(R)125-112		112			63
140		25OQJ(R)125-128		128			75
141		250QJ(R)125-160		160			90
142		25OQJ(R)125-176		176			100
143		25OQJ(R)125-196		196			110
144		250QJ(R)125-352		352			180
145		250QJ(R)140-15		15			9.2
146	250	250QJ(R)140-30	140	30	2875	76	18.5	233
147		250QJ(R)140-45		45			30
148		25OQJ(R)140-60		60			37
149		25OQJ(R)140-75		75			45
150		250QJ(R)140-90		90			55

Serial number	Applicable	Model	Traffic	General Yang Cheng	Speed	Efficiency	Motor power	Large unit
Serial number	Small well diameter	（model）	(cubic meters/hour)	(meters)	(rev/min)	(%)	(kilowatt)	Outer diameter (mm)
151	250	250QJ(R)140-105	140	105	2875	76	63	233
152		250QJ(R)140-120		120			75
153		250QJ(R)140-150		150			90
154		250QJ(R)140-165		165			100
155		250QJ(R)140-180		180			110
156		250QJ170(R)-20		20			15
157		250QJ170(R)-40		40			30
158		250QJ170(R)-60		60			45
159	250	250QJ170(R)-80	170	80	2900	75	63	233
160		250QJ170(R)-10		100			75
161		250QJ170(R)-120		120			90
162		250QJ170(R)-140		140			110
163		250QJ(R)200-20		20			18.5
164		250QJ(R)200-40		40			37
165		250QJ(R)200-60		60			55
166	250	25OQJ(R)200-80	200	80	2875	70	75	233
167		250QJ(R)200-100		100			90
168		25OQJ(R)200-120		120			110
169		250QJ(R)200-200		200			180
170	300	300QJ(R)200-20	200	20	2900	76	18.5	281
171		3OOQJ(R)200-40		40			37
172		3OOQJ(R)200-60		60			55
173		3OOQJ(R)200-80		80			75
174		300QJ(R)200-160		100			90
175		300QJ(R)200-120		120			100
176		3OOQJ(R)200-140		140			125
177		3OOQJ(R)200-160		160			140
178		300QJ(R)200-180		180			160
179		3OOQJ(R)200-200		200			185
180		300QJ(R)200-240		240			220
181		300QJ(R)300-22		22			30
182		3OOQJ(R)300-44		44			55
183		3OOQJ(R)300-66		66			90
184	300	300QJ(R)300-88	300	88	2900	70	125	281
185		300QJ(R)300-110		110			160
186		300QJ(R)300-132		132			185
187		300QJ(R)300-154		154			220
188	350	3500J200(R)-36	200	36	1450	75	30	328
189		350QJ200(R)-48		48			45
190		350QJ200(R)-60		60			55
191		350QJ200(R)-72		72			63
192		350QJ200(R)-84		84			75
193		3500J200(R)-96		96			90
194		3500J200(R)-120		120			110
195		3500J200(R)-144		144			125
196		350QJ200(R)-168		168			140
197		350QJ200(R)-192		192			160
198		3500J(R)360-36		36			55
199	350	350QJ(R)360-72	360	72	2900	76	125	330
200	350	3500J(R)360-108	360	108	2900	76	160	330

Next：WQAS series non-clogging cutting submersible sewage pump

Pre：WQ/QW series high-speed submersible sewage pumps

Inquiry

* Subject
* You Message
* Email
Company
Country
Name
Telephone