Submersible Sewage Pumps

Description

Submersible sewage pump is extensively used in industrial, mining and architectural operations, being made of hard alloy and reliably well-sealed and equiped with overheat/overload protection devise, it is also featured by its long durability and safety for use.

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Specification

Size: 50-600mm
Capacity: 10-6000m3/h
Head: 5-62m
Speed: 750-3550r/min
Temperature Range: ≤80°C
Sealing arrangement: Mechanical seal
Electric Motor: 50Hz/60Hz, 110V/220V/380V/440V/460V/660V/1000V
Materials: Cast iron, SS304, SS316L, Duplex SS, High chrome, Hyperchrome etc

Applications

Wastewater drainage in factories, construction sites and commercial facilities
Drainage system in municipal sewage treatment plants
Drainage station in residential quarters
Methane pools and field irrigation in countryside

Feature

Advanced Non-Clogging Impeller: Equipped with a specially designed single or dual-channel impeller, it allows large solids and long fibers to pass through smoothly without causing blockages.
Heavy-Duty Construction: Built with high-quality cast iron or stainless steel, ensuring excellent wear resistance, corrosion resistance, and a long operational lifespan.
Dual Mechanical Seals: Features a premium tandem mechanical seal system operating in an oil chamber, providing reliable protection against water leakage into the motor.
Smart Built-in Protection: Includes automatic thermal overload and leakage sensors to protect the motor from overheating or damage in harsh working conditions.
Energy-Efficient Design: Optimized hydraulic models ensure high efficiency, low energy consumption, and stable performance across various flow rates.

Packing Declaration

- All of submersible sewage pump are packed by the standards plywood box complied with the exportation requirement;
- We can also customizing submersible sewage pump package to pack submersible sewage pump according to customer’s request;

More Product Details

WTU Submersible Sewage Pump Technical Data:

Discharge (MM)	Pump Model	Capacity (m³/h)	Head (m)	Power (kw)	Voltage (V)	Speed (r/min)	Pipe discharg (inch)
25	25WTU5-20-0.75	5	20	0.75	380	2900	1
32	32WTU6-18-0.75	6	18	0.75	380	2900	1.2
40	40WTU7-15-0.75	7	15	0.75	380	2900	1.5
50	50WTU10-10-0.75	10	10	0.75	380	2900	2
65	65WTU15-7-0.75	15	7	0.75	380	2900	2.5
25	25WTU5-22-1.1	5	22	1.1	380	2900	1
32	32WTU6-20-1.1	6	20	1.1	380	2900	1.2
40	40WTU7-18-1.1	7	18	1.1	380	2900	1.5
50	50WTU10-12-1.1	10	12	1.1	380	2900	2
65	65WTU15-9-1.1	15	9	1.1	380	2900	2.5
50	50WTU10-16-1.5	10	16	1.5	380	2900	2
65	65WTU20-10-1.5	20	10	1.5	380	2900	2.5
80	80WTU40-7-1.5	40	7	1.5	380	2900	3
100	100WTU50-5-1.5	50	5	1.5	380	2900	4
50	50WTU9-22-2.2	9	22	2.2	380	2900	2
65	65WTU20-15-2.2	20	15	2.2	380	2900	2.5
80	80WTU40-10-2.2	40	10	2.2	380	2900	3
100	100WTU50-7-2.2	50	7	2.2	380	2900	4
50	50WTU15-25-3	15	25	3	380	2900	2
65	65WTU25-18-3	25	18	3	380	2900	2.5
80	85WTU45-12-3	45	12	3	380	2900	3
100	100WTU60-9-3	60	9	3	380	2900	4
50	50WTU15-30-4	15	30	4	380	2900	2
65	65WTU25-25-4	25	25	4	380	2900	2.5
80	80WTU40-16-4	40	16	4	380	2900	3
100	100WTU60-12-4	60	12	4	380	2900	4
50	50WTU15-40-5.5	15	40	5.5	380	2900	2
65	65WTU25-30-5.5	25	30	5.5	380	2900	2.5
80	80WTU40-22-5.5	40	22	5.5	380	2900	3
100	100WTU60-18-5.5	60	18	5.5	380	2900	4
150	150WTU100-7-5.5	100	7	5.5	380	2900	6
50	50WTU20-45-7.5	20	45	7.5	380	2900	2
65	65WTU30-35-7.5	30	35	7.5	380	2900	2.5
80	80WTU40-28-7.5	40	28	7.5	380	2900	3
100	100WTU65-22-7.5	65	22	7.5	380	2900	4
150	150WTU100-12-7.5	100	12	7.5	380	2900	6
50	50WTU20-55-11	20	55	11	380	2900	2
65	65WTU30-40-11	30	40	11	380	2900	2.5
80	80WTU60-30-11	60	30	11	380	2900	3
100	100WTU80-25-11	80	25	11	380	2900	4
150	150WTU100-20-11	100	20	11	380	2900	6
150	150WTU120-15-11	120	15	11	380	2900	6
200	200WTU180-11-11	180	11	11	380	2900	8
50	50WTU20-70-15	20	70	15	380	2900	2
65	65WTU30-60-15	30	60	15	380	2900	2.5
80	80WTU60-40-15	60	40	15	380	2900	3
100	100WTU80-35-15	80	35	15	380	2900	4
150	150WTU100-30-15	100	30	15	380	2900	6
150	150WTU120-25-15	120	25	15	380	2900	6
200	200WTU180-15-15	180	15	15	380	2900	8
50	50WTU20-80-18.5	20	80	18.5	380	2900	2
65	65WTU30-68-18.5	30	68	18.5	380	2900	2.5
80	80WTU60-45-18.5	60	45	18.5	380	2900	3
100	100WTU80-40-18.5	80	40	18.5	380	2900	4
150	150WTU100-36-18.5	100	36	18.5	380	2900	6
200	200WTU180-18-18.5	180	18	18.5	380	2900	8
50	50WTU20-90-22	20	90	22	380	2900	2
65	65WTU30-75-22	30	75	22	380	2900	2.5
80	80WTU60-50-22	60	50	22	380	2900	3
100	100WTU80-45-22	80	45	22	380	2900	4
150	150WTU100-40-22	100	40	22	380	2900	6
200	200WTU200-20-22	200	20	22	380	2900	8
80	80WTU80-13-5.5	80	13	5.5	380	1450	3
100	100WTU110-10-5.5	110	10	5.5	380	1450	4
150	150WTU150-7-5.5	150	7	5.5	380	1450	6
80	80WTU80-20-7.5	80	20	7.5	380	1450	3
100	100WTU100-15-7.5	100	15	7.5	380	1450	4
150	150WTU145-9-7.5	145	9	7.5	380	1450	6
200	200WTU250-6-7.5	250	6	7.5	380	1450	8
100	100WTU100-25-11	100	25	11	380	1450	4
150	150WTU180-11-11	180	11	11	380	1450	6
200	200WTU300-7-11	300	7	11	380	1450	8
250	250WTU400-5-11	400	5	11	380	1450	10
100	100WTU100-30-15	100	30	15	380	1450	4
150	150WTU200-15-15	200	15	15	380	1450	6
200	200WTU250-11-15	250	11	15	380	1450	8
250	250WTU500-5-15	500	5	15	380	1450	10
100	100WTU100-35-18.5	100	35	18.5	380	1450	4
150	150WTU180-20-18.5	180	20	18.5	380	1450	6
200	200WTU250-15-18.5	250	15	18.5	380	1450	8
200	200WTU350-10-18.5	350	10	18.5	380	1450	8
250	250WTU500-7-18.5	500	7	18.5	380	1450	10
300	300WTU650-5-18.5	650	5	18.5	380	1450	12
100	100WTU100-40-22	100	40	22	380	1450	4
150	150WTU200-22-22	200	22	22	380	1450	6
200	200WTU300-16-22	300	16	22	380	1450	8
200	200WTU400-10-22	400	10	22	380	1450	8
250	250WTU500-9-22	500	9	22	380	1450	10
300	300WTU650-7-22	650	7	22	380	1450	12
100	100WTU120-45-30	120	45	30	380	1450	4
150	150WTU180-30-30	180	30	30	380	1450	6
200	200WTU250-22-30	250	22	30	380	1450	8
250	250WTU500-12-30	500	12	30	380	1450	10
250	250WTU600-9-30	600	9	30	380	1450	10
300	300WTU800-7-30	800	7	30	380	1450	12
300	300WTU1000-6-30	1000	6	30	380	980	12
350	350WTU1500-4-30	1500	4	30	380	980	14
100	100WTU120-50-37	120	50	37	380	1450	4
150	150WTU200-35-37	200	35	37	380	1450	6
200	200WTU300-28-37	300	28	37	380	1450	8
200	200WTU350-25-37	350	25	37	380	1450	8
250	250WTU600-12-37	600	12	37	380	1450	10
300	300WTU800-9-37	800	9	37	380	1450	12
350	350WTU1000-6-37	1000	6	37	380	1450	14
350	350WTU1100-6-37	1100	6	37	380	980	14
400	400WTU1300-5-37	1300	5	37	380	980	16
100	100WTU100-57-45	100	57	45	380	1450	4
150	150WTU200-40-45	200	40	45	380	1450	6
200	200WTU300-32-45	300	32	45	380	1450	8
200	200WTU400-25-45	400	25	45	380	1450	8
250	250WTU600-15-45	600	15	45	380	1450	10
300	300WTU800-12-45	800	12	45	380	1450	12
350	350WTU1200-8-45	1200	8	45	380	1450	14
350	350WTU1300-8-45	1300	8	45	380	980	14
400	400WTU1700-6-45	1700	6	45	380	980	16
100	100WTU100-65-55	100	65	55	380	1450	4
150	150WTU180-50-55	180	50	55	380	1450	6
200	200WTU300-40-55	300	40	55	380	1450	8
200	200WTU400-30-55	400	30	55	380	1450	8
250	250WTU600-20-55	600	20	55	380	1450	10
300	300WTU800-15-55	800	15	55	380	1450	12
350	350WTU1000-10-55	1000	10	55	380	1450	14
350	350WTU1100-10-55	1100	10	55	380	980	14
400	400WTU1300-8-55	1300	8	55	380	1450	16
400	400WTU1500-8-55	1500	8	55	380	980	16
500	500WTU2200-5-55	2200	5	55	380	740	20
100	100WTU120-75-75	120	75	75	380	1450	4
150	150WTU200-60-75	200	60	75	380	1450	6
200	200WTU350-45-75	350	45	75	380	1450	8
250	250WTU600-25-75	600	25	75	380	1450	10
300	300WTU800-20-75	800	20	75	380	1450	12
350	350WTU1000-15-75	1000	15	75	380	1450	14
350	350WTU1500-12-75	1500	12	75	380	980	14
400	400WTU1300-13-75	1300	13	75	380	1450	16
400	400WTU1700-10-75	1700	10	75	380	980	16
500	500WTU2000-8-75	2000	8	75	380	980	20
500	500WTU2700-6-75	2700	6	75	380	740	20
100	100WTU120-85-90	120	85	90	380	1450	4
150	150WTU200-70-90	200	70	90	380	1450	6
200	200WTU300-60-90	300	60	90	380	1450	8
200	200WTU400-50-90	400	50	90	380	1450	8
250	250WTU600-30-90	600	30	90	380	1450	10
300	300WTU800-25-90	800	25	90	380	1450	12
350	350WTU1000-18-90	1000	18	90	380	1450	14
350	350WTU1200-18-90	1200	18	90	380	980	14
400	400WTU1300-16-90	1300	16	90	380	1450	16
400	400WTU1500-15-90	1500	15	90	380	980	16
500	500WTU2000-10-90	2000	10	90	380	980	20
500	500WTU2500-8-90	2500	8	90	380	740	20
600	600WTU3000-6-90	3000	6	90	380	740	24
100	100WTU100-100-110	100	100	110	380	1450	4
150	150WTU180-80-110	180	80	110	380	1450	6
200	200WTU300-65-110	300	65	110	380	1450	8
250	250WTU600-40-110	600	40	110	380	1450	10
300	300WTU1000-25-110	1000	25	110	380	1450	12
350	350WTU1300-20-110	1300	20	110	380	1450	14
350	350WTU1600-16-110	1600	16	110	380	980	14
400	400WTU1500-17-110	1500	17	110	380	1450	16
400	400WTU1800-15-110	1800	15	110	380	980	16
500	500WTU2500-10-110	2500	10	110	380	980	20
500	500WTU3000-8-110	3000	8	110	380	740	20
600	600WTU3200-7-110	3200	7	110	380	980	24
600	600WTU3800-6-110	3800	6	110	380	740	24
150	150WTU200-90-132	200	90	132	380	1450	6
200	200WTU400-75-132	400	75	132	380	1450	8
250	250WTU500-50-132	500	50	132	380	1450	10
300	300WTU800-36-132	800	36	132	380	1450	12
350	350WTU1100-28-132	1100	28	132	380	1450	14
350	350WTU1500-20-132	1500	20	132	380	980	14
400	400WTU1700-16-132	1700	16	132	380	1450	16
400	400WTU2000-15-132	2000	15	132	380	980	16
500	500WTU2800-10-132	2800	10	132	380	980	20
500	500WTU3100-10-132	3100	10	132	380	740	20
600	600WTU3700-8-132	3700	8	132	380	980	24
600	600WTU4000-8-132	4000	8	132	380	740	24

WTU Submersible Sewage Pump Structure:

Bearing – SKF or NTN bearings which with a reasonable configuration, it can extend the duration of the pump.
Cooling – The buit-in cooling system can make pump normally work whether the motor is on or under the liquid surface.
Motor – Using F class insulation, Max. working temperatures can up to 155 ℃, Protective grade is IP68 with the effective seal.
Using Burgmann mechanical seal from Germany, two seals are in series with each other and individual work.
Oil chamber – Oil can lubricate and cool the mechanical seal and preventing liquid penetrating into the motor.
Impeller – With the optimized design, the impeller wil not be blocked up when to transport liquid with its optimum flow and rate and the maximum efficiency.
Pump casing – Using the know-how of CAD/CAM to make it at max. efficiency and min wearability.
Shaft – The pump is coaxial with the motor and the sealing device on the end of the shaft prevents against contacting with the medium to protect it from corrosion.
Monitor system – Inside of the stator there are three inlaid series heat-control switches, which are in the state of “N.O.” at the normal temperature and opened when the temperature on the stator gets to 125℃ .
Float switch – The float switch will give a warning signal(the indicator lights), when leakage occurs on the mechanical seal on the motor side, the liquid goes into the switch room and reaches a certain height, to stop the pump. Serviceman should check the mechanical seal and replace it if necessary.

WTU Submersible Sewage Pump Dimension and Installation Drawing:

FAQ：

Q: What is the difference between a standard WTU Submersible sewage pump and the ASWTU submersible cutting pump?

A: The main difference lies in the impeller design and solid-handling capability:

Standard WTU: Usually equipped with a closed or semi-open channel impeller, ideal for transferring wastewater containing general suspended solids, sludge, and gray water without clogging.
ASWTU (Cutting/Shredding Type): Specifically fitted with a high-hardness cutting mechanism or shredding impeller. It is designed to chop, tear, and shred long fibers, plastics, textiles, and organic debris into tiny pieces before they enter the pump casing, completely preventing clogging in tough environments.

Q: Can the WTU submersible sewage pump run continuously when it is not fully submerged?

A: Generally, no, standard submersible pumps rely on the surrounding liquid to dissipate heat from the motor. Running a standard WTU pump completely dry or exposed for long periods can cause the motor to overheat and burn out.

💡 Note: If your application requires low-level pumping, look for models featuring an optional external cooling jacket or built-in thermal protection switches.

Q: What materials are used for WTU pumps to handle corrosive or abrasive wastewater?

A: Material selection depends entirely on the nature of the fluid being pumped:

Standard Industrial/Municipal Wastewater: High-grade Cast Iron (HT200/HT250) or Ductile Iron offers excellent durability and cost-effectiveness.
Corrosive / Chemical Effluent: Stainless Steel (SS304, SS316, or Duplex Stainless Steel) is utilized to resist chemical corrosion.
Highly Abrasive Slurry/Sandy Water: High-chrome alloy components or specialized hardened coatings can be applied to extend the service life of the impeller and casing.

Q: What safety protections are built into the WTU sewage pumps?

A: To ensure maximum operational reliability and reduce maintenance downtime, advanced WTU series pumps can be equipped with:

Thermal Protectors (Overheating): Built-in sensors in the motor windings that automatically shut down the pump if the temperature exceeds safe limits.
Water Leakage Probe (Moisture Sensor): Positioned in the oil chamber or motor housing to detect any mechanical seal failure before water reaches the motor.
Dual Mechanical Seals: Usually structured in tandem (Silicon Carbide to Silicon Carbide) to provide a heavy-duty barrier against fluid ingress.

Q: What is the Auto-Coupling System (GAK), and why should I use it?

A: The Auto-Coupling Installation System is a guide-rail mechanism that connects the pump to the discharge piping without manual bolting at the bottom of the sump.

Why use it? It allows for extremely easy maintenance. If the pump needs inspection, you simply lift it via a chain along the guide rails. It automatically disconnects at the bottom and re-connects perfectly when lowered back down—meaning maintenance teams never need to enter the hazardous sewage pit.