WQ4B Series 380V 30KW~45KW 4P Ultra-large Capacity Sewage Pump
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EDWIN WQ-4B submersible pump with IP68 protection & Class F insulation: delivers up to 1080m³/h capacity, handles high-density liquids, and ensures stable performance for industrial water management.
Max water depth: 20m
Water temperature: up to 40℃
Capacity: up tp 1080 m³/h
Head: up to 56 m
Discharge of liquid: 1.3g/cm³
PH: 6 to 10
Insulation class : F
Protection class : IP68
Cable length: 8m
Starting method: ≥45kW reduced-voltage starting
Other voltages
The length of cable is optional
(according to our general sales conditions)
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Materials Table |
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NO. |
Name |
Material |
|
01 |
Hose coupling |
Cast iron |
|
01a |
Hose coupling |
Cast iron |
|
03 |
Terminal box |
Cast iron |
|
04 |
Wiring terminal |
|
|
05 |
Upper cover |
Cast iron |
|
06 |
Up-Bearing house |
Cast iron |
|
07 |
Bearing house |
Cast iron |
|
10 |
Seal Bracket |
Cast iron |
|
11 |
Motor body |
Cast iron |
|
13 |
Pump body |
Cast iron |
|
14 |
Impeller |
Ductile iron |
|
17 |
Coupling adapter |
Cast iron |
|
22 |
Seat assembly |
Cast iron |
|
22a |
Coupling seat |
Cast iron |
|
22b |
Upper guide support |
Cast iron |
|
24 |
Neck ring |
High chrome alloy |
|
27 |
Stator |
|
|
28 |
Rotor |
Shaft : AISI420SS |
|
30 |
Flange |
Cast iron |
|
31a |
Bearing |
Ball bearing |
|
31b |
Bearing |
Angular contact bearing |
|
34 |
Mechanical seal |
Sic-Sic |
|
47 |
Cable |
|
|
S1/2 |
Overheat protector : on option |
|
|
S3/4 |
Oil water leakage probe :on option |
|



| Model | Motor power (kw/HP) |
Outlet (mm) |
Voltage (V) |
Rated flow (m³/h) |
Rated head (m) |
Max.Flow (m³/h) |
Max.Head (m) |
Impeller passage (mm) |
| 150WQ4B30 | 30/40 | 150 | 380 | 150 | 34 | 310 | 45 | 55 |
| 200WQ4B30 | 30/40 | 200 | 380 | 300 | 21 | 570 | 33 | 80 |
| 250WQ4B30 | 30/40 | 250 | 380 | 500 | 14 | 800 | 27 | 90 |
| 300WQ4B30 | 30/40 | 300 | 380 | 800 | 8 | 1040 | 22 | 90 |
| 150WQ4B37 | 37/50 | 150 | 380 | 150 | 40 | 330 | 50 | 55 |
| 200WQ4B37 | 37/50 | 200 | 380 | 300 | 25 | 620 | 39 | 90 |
| 250WQ4B37 | 37/50 | 250 | 380 | 500 | 18 | 860 | 30 | 90 |
| 300WQ4B37 | 37/50 | 300 | 380 | 800 | 11 | 1060 | 25 | 90 |
| 150WQ4B45 | 45/60 | 150 | 380 | 150 | 45 | 350 | 56 | 55 |
| 200WQ4B45 | 45/60 | 200 | 380 | 300 | 30 | 660 | 43 | 90 |
| 250WQ4B45 | 45/60 | 250 | 380 | 500 | 21 | 900 | 34 | 90 |
| 300WQ4B45 | 45/60 | 300 | 380 | 800 | 14 | 1080 | 28 | 90 |
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