Product Description
Model Code Explanation
Product Introduction
The JYWQ, JBWQ, and JPWQ series automatic mixing sewage pumps are developed based on standard sewage pumps by adding an automatic stirring device.
This device rotates together with the motor shaft, generating a strong mixing force that stirs the sediment at the bottom of the sewage pit into suspended particles. These are then sucked into the pump and discharged, greatly improving the pump’s anti-clogging and sewage-discharge performance.
The pump completes drainage, cleaning, and desilting in one operation, reducing operating costs and making it an advanced and practical environmental-protection product.
Note: JYWQ and JBWQ are standard types; JPWQ is equipped with a stainless-steel outer sleeve and an internal circulation cooling system.
Product Features
1. When the automatic mixing sewage pump operates, it automatically stirs the sediment at the bottom of the sewage pool, completely preventing sludge accumulation without the need for manual cleaning.
2. The unique impeller design provides cutting and shredding functions for fibrous materials and debris.
3. The external circulation cooling system enables the pump to operate at low water levels, reducing motor start-up frequency and extending motor service life.
Product Applications
1. Discharge of heavily polluted wastewater from factories and commercial facilities.
2. Drainage systems of municipal sewage treatment plants, hospitals, and hotels.
3. Sewage pumping stations in residential communities.
4. Civil-defense drainage stations and water supply units of waterworks.
5. Municipal engineering and construction sites.
6. Supporting equipment for exploration, mining, and power plants.
7. Rural biogas pits, farmland irrigation, and river/pond desilting.
Operating Conditions
1. Medium temperature must not exceed 60°C; medium density 1–1.3 kg/dm³; pH range 4–10.
2. 1Cr18Ni9Ti stainless steel material is suitable for various corrosive media.
Note: If the user has special requirements regarding medium type, temperature, or other conditions, please specify the details when placing the order so that we can provide the most reliable product.
Structure Diagram
|
No.
|
Name
|
|
1
|
Main Cable
|
|
2
|
Motor Housing
|
|
3
|
Internal Circulation Sleeve
|
|
4
|
Oil Chamber
|
|
5
|
Auxiliary Impeller
|
|
6
|
Impeller
|
|
7
|
Pump Body
|
|
8
|
Base
|
|
9
|
Partition Plate
|
|
10
|
Control Cable
|
|
11
|
Oil-Water Probe
|
|
12
|
Mechanical Seal
|
|
13
|
Agitator
|
Structure Features
-
Designed with a unique double-channel non-clogging impeller to enhance the pump’s solids-handling and sewage-discharge performance.
-
Equipped with an automatic mixing device that generates strong agitation, stirring settled sludge into suspension and allowing it to be pumped out for effective desilting.
-
A built-in divider separates the base into two sections, ensuring the mixing function and inlet flow do not interfere with each other.
-
The mechanical seal uses a double-end-face design and operates fully in an oil chamber, ensuring safe and reliable long-term pump performance.
-
The auxiliary impeller provides hydrodynamic sealing, offering secondary sealing protection for the mechanical seal while balancing axial forces to extend bearing life.
-
The cable chamber is equipped with a leakage sensor; when water ingress occurs, the sensor sends a signal to the control system to protect the pump. An automatic protection control panel can also be supplied.
-
The motor stator uses Class B or Class F insulation and includes a built-in thermal protector. When the motor overheats due to overload, the protector triggers promptly to safeguard both the pump and the motor.
-
An oil-water detector is installed in the oil chamber. If the mechanical seal is damaged and water enters the chamber, the detector sends a signal for the control system to protect the pump.
-
JPWQ models are equipped with an internal circulation cooling system, allowing the pump to operate normally even at low water levels.
Performance Parameters
|
Item No.
|
Model
|
Discharge Diameter |
Rated Flow Rate
|
Rated Head
|
Impeller Diameter
|
Speed (rpm)
|
Efficiency (%)
|
Auto-Coupling Device |
|
(mm)
|
(m3/h)
|
(mm)
|
(mm)
|
(r/min)
|
(%)
|
|||
|
1
|
JYWQ50-12-15-1200-1.5
|
50
|
12
|
15
|
1200
|
2900
|
48
|
CAK-50
|
|
2
|
JYWQ50-20-7-1200-1.1
|
50
|
20
|
7
|
1200
|
2900
|
62
|
CAK-50
|
|
3
|
JYWQ50-10-10-1200-1.1
|
50
|
10
|
10
|
1200
|
2900
|
56
|
CAK-50
|
|
4
|
JYWQ50-15-15-1200-2.2
|
50
|
15
|
15
|
1200
|
2900
|
51
|
CAK-50
|
|
5
|
JYWQ50-25-10-1200-2.2
|
50
|
25
|
10
|
1200
|
2900
|
65
|
CAK-50
|
|
6
|
JYWQ50-15-20-1200-2.2
|
50
|
15
|
20
|
1200
|
2900
|
56
|
CAK-50
|
|
7
|
JYWQ50-20-15-1200-2.2
|
50
|
20
|
15
|
1200
|
2900
|
56
|
CAK-50
|
|
8
|
JYWQ50-42-9-1200-3
|
50
|
42
|
9
|
1200
|
2900
|
56
|
CAK-50
|
|
9
|
JYWQ50-17-25-1200-3
|
50
|
17
|
25
|
1200
|
2900
|
56
|
CAK-50
|
|
10
|
JYWQ50-25-22-1200-4
|
50
|
25
|
22
|
1200
|
2900
|
62
|
CAK-50
|
|
11
|
JYWQ50-40-15-1400-4
|
50
|
40
|
15
|
1400
|
2900
|
70
|
CAK-50
|
|
12
|
JYWQ50-25-32-1600-5.5
|
50
|
25
|
32
|
1600
|
2900
|
52
|
CAK-50
|
|
13
|
JYWQ50-40-30-1600-7.5
|
50
|
40
|
30
|
1600
|
2900
|
68
|
CAK-50
|
|
14
|
JYWQ65-25-15-1400-3
|
65
|
25
|
150
|
1400
|
2900
|
65
|
CAK-65
|
|
15
|
JYWQ65-37-13-1400-3
|
65
|
37
|
13
|
1400
|
2900
|
62
|
CAK-65
|
|
16
|
JYWQ65-25-28-1400-4
|
65
|
25
|
28
|
1400
|
2900
|
60
|
CAK-65
|
|
17
|
JYWQ80-40-7-1600-2.2
|
80
|
40
|
7
|
1600
|
2900
|
54
|
CAK-80
|
|
18
|
JYWQ80-29-8-1600-2.2
|
80
|
29
|
8
|
1600
|
2900
|
54
|
CAK-80
|
|
19
|
JYWQ80-43-13-1600-4
|
80
|
43
|
13
|
1600
|
2900
|
63
|
CAK-80
|
|
20
|
JYWQ80-50-10-1600-3
|
80
|
50
|
10
|
1600
|
1450
|
76
|
CAK-80
|
|
21
|
JYWQ80-40-15-1600-4
|
80
|
40
|
15
|
1600
|
2900
|
70
|
CAK-80
|
|
22
|
JYWQ80-60-13-1600-4
|
80
|
60
|
13
|
1600
|
2900
|
70
|
CAK-80
|
|
23
|
JYWQ80-35-25-1600-5.5
|
80
|
35
|
25
|
1600
|
2900
|
64
|
CAK-80
|
|
24
|
JYWQ80-50-25-1600-7.5
|
80
|
50
|
25
|
1600
|
2900
|
70
|
CAK-80
|
|
25
|
JYWQ80-50-30-1600-7.5
|
80
|
50
|
30
|
1600
|
2900
|
70
|
CAK-80
|
|
26
|
JYWQ100-80-9-2000-4
|
100
|
80
|
9
|
2000
|
1450
|
62
|
CAK-100
|
|
27
|
JYWQ100-110-10-2000-5.5
|
100
|
110
|
10
|
2000
|
1450
|
71
|
CAK-100
|
|
28
|
JYWQ100-70-15-2000-5.5
|
100
|
70
|
15
|
2000
|
1450
|
71
|
CAK-100
|
|
29
|
JYWQ100-100-15-2000-7.5
|
100
|
100
|
15
|
2000
|
1450
|
73
|
CAK-100
|
|
30
|
JYWQ100-80-20-2000-7.5
|
100
|
70
|
20
|
2000
|
2900
|
71
|
CAK-100
|
|
31
|
JYWQ100-50-35-2000-11
|
100
|
100
|
35
|
2000
|
2900
|
68
|
CAK-100
|
|
32
|
JYWQ100-70-22-2000-7.5
|
100
|
80
|
22
|
2000
|
2900
|
70
|
CAK-100
|
|
33
|
JYWQ100-100-22-2000-15
|
100
|
150
|
22
|
2000
|
1450
|
61
|
CAK-100
|
|
34
|
JYWQ100-80-30-2000-15
|
100
|
210
|
30
|
2000
|
1450
|
67
|
CAK-100
|
|
35
|
JYWQ150-150-10-2000-7.5
|
150
|
250
|
10
|
2000
|
1450
|
75
|
CAK-150
|
|
36
|
JYWQ150-210-7-2500-7.5
|
150
|
150
|
7
|
2500
|
1450
|
78
|
CAK-150
|
|
37
|
JYWQ150-250-6-2500-7.5
|
150
|
200
|
6
|
2500
|
1450
|
79
|
CAK-150
|
|
38
|
JYWQ150-150-15-2500-11
|
150
|
65
|
15
|
2500
|
1450
|
79
|
CAK-150
|
|
39
|
JYWQ150-200-10-2500-15
|
150
|
180
|
10
|
2500
|
1450
|
73
|
CAK-150
|
|
40
|
JYWQ150-65-40-3200-18.5
|
150
|
150
|
40
|
3200
|
1450
|
58
|
CAK-150
|
|
41
|
JYWQ150-180-22-2600-18.5
|
150
|
110
|
22
|
2600
|
1450
|
75
|
CAK-150
|
|
42
|
JYWQ150-150-26-2600-18.5
|
150
|
300
|
26
|
2600
|
1450
|
72
|
CAK-150
|
|
43
|
JYWQ150-110-30-2600-18.5
|
150
|
130
|
30
|
2600
|
1450
|
72
|
CAK-150
|
|
44
|
JYWQ150-300-15-2600-22
|
150
|
100
|
15
|
2600
|
1450
|
76
|
CAK-150
|
|
45
|
JYWQ150-130-30-2600-22
|
150
|
300
|
30
|
2600
|
1450
|
70
|
CAK-150
|
|
46
|
JYWQ150-100-40-3000-30
|
150
|
250
|
40
|
3000
|
1450
|
64
|
CAK-150
|
|
47
|
JYWQ200-300-7-3000-11
|
200
|
300
|
7
|
3000
|
1450
|
75
|
CAK-200
|
|
48
|
JYWQ200-250-11-3000-15
|
200
|
250
|
11
|
3000
|
1450
|
72
|
CAK-200
|
|
49
|
JYWQ200-300-10-3000-15
|
200
|
300
|
10
|
3000
|
1450
|
75
|
CAK-200
|
|
50
|
JYWQ200-250-15-3000-18.5
|
200
|
250
|
15
|
3000
|
1450
|
72
|
CAK-200
|
|
51
|
JYWQ200-400-10-3000-22
|
200
|
400
|
10
|
3000
|
1450
|
75
|
CAK-200
|
|
52
|
JYWQ200-200-20-3000-22
|
200
|
200
|
20
|
3000
|
1450
|
73
|
CAK-200
|
|
53
|
JYWQ200-250-22-3000-30
|
200
|
250
|
22
|
3000
|
1450
|
73
|
CAK-200
|
|
54
|
JYWQ250-600-7-3000-22
|
250
|
600
|
7
|
3000
|
1450
|
78
|
CAK-250
|
|
55
|
JYWQ250-600-9-3000-30
|
250
|
600
|
9
|
3000
|
1450
|
78
|
CAK-250
|
Operating Precautions
-
Before operation, use a megohmmeter to measure the insulation resistance between the motor stator winding and ground. The insulation resistance shall not be less than 50 MΩ.
-
Inspect the power cable for damage, cracks, or breaks. Replace it immediately if any defect is found to prevent electric leakage. The cable cross-sectional area must match the operating current.
-
Do not start the electric pump when the supply voltage exceeds ±10% of the rated voltage.
-
For safe operation, the grounding conductor in the four-core cable must be reliably connected to ground to prevent electric shock.
-
When the pump is submerged for operation, it must be lifted/installed vertically. Horizontal placement on the ground is prohibited, and the pump must not sink into sludge. After stopping operation, lift the pump out of the water, clean it thoroughly, store it in a dry place, and take anti-freezing measures.
-
Do not use the power cable as a lifting rope for installation or handling.
-
Check the rotor rotation direction. Viewed from top to bottom, the rotor should rotate clockwise.
-
Outdoor switches or terminals must be protected against rain and moisture. Do not touch the switch with wet hands or while barefoot to avoid electric shock.
-
Disconnect the power supply before moving the pump. During operation, personnel must not contact the water to prevent injury caused by electric leakage.
-
Operation with phase loss is strictly prohibited. If a fuse blows, identify and eliminate the cause before restarting. Do not arbitrarily increase the fuse rating.
-
The pump should be monitored by dedicated personnel during operation. If any abnormal condition occurs, stop the pump immediately for inspection and troubleshooting.
(Applicable to units not equipped with a fully automatic protection control cabinet.) -
After six months of normal operation under specified working conditions and media, inspect the oil chamber sealing condition. If the oil becomes milky or water sediment is found, promptly replace No. 10–20 mechanical oil and the mechanical seal. Pumps operating under harsh conditions require more frequent inspection and maintenance.
-
Select appropriate flow rate and head according to actual operating conditions. The parameters shown on the nameplate/manual represent the corresponding duty point. It is recommended to operate within 0.7–1.2 times the rated flow. Over-flow operation is prohibited; otherwise, excessive flow and insufficient head may cause motor overload.
OEM & Custom Solutions
FAQs for Oversea Buyers
- Q: Can you match our required duty point and solids handling?
A: Yes. Select from JYWQ/JBWQ/JPWQ ranges and impeller options; provide flow/head, solids size, and medium details. - Q: What voltages and frequencies are available?
A: 50/60 Hz, common voltages (220/380/400/415/460 V). Custom on request. - Q: Do you offer guide rail auto-coupling systems?
A: Yes, CAK-50 to CAK-250 for fast installation and maintenance. - Q: How do you ensure sealing reliability?
A: Dual mechanical seals in oil chamber, hydrodynamic auxiliary seal, leak/thermal protection options. - Q: Can the pump run at low water level?
A: JPWQ with internal circulation cooling is designed for low water-level operation. - Q: What certifications and tests can you provide?
A: Routine performance and pressure tests; export compliance documents and inspection reports are available. - Q: What information is needed for a quotation?
A: Medium, temperature, pH, flow/head duty point, site voltage/frequency, solids size, installation method, and accessories needed.