YW Series Submerged Sewage Pump | Vertical Non-Clog Design

Product Overview

The ZW Series Non-Clogging Self-Priming Submersible Sewage Pump is a wastewater pump designed with surface mounting and self-priming capabilities. It is equipped with a single-channel or dual-channel impeller design, specifically developed for transferring sewage and wastewater containing solid particles and long fibers. Featuring a reliable structure design and strong solid handling capacity, this pump is ideal for continuous and stable operation in industrial, municipal, and construction drainage systems.

Model Designation

Key Features

• Single-channel or dual-channel non-clogging impeller design significantly improves the ability to handle solids and long fibers.

• Mechanical seals with abrasion-resistant hard alloy friction pairs ensure continuous operation for over 8000 hours with reliable sealing performance.

• Compact structure with low noise and a small footprint, easy to maintain, and simple component replacement.

• Optional fully automatic control system for start/stop operations based on liquid level changes, reducing manual intervention.

• Multiple installation options available; installation and maintenance can be performed without entering the sewage pit.

• The pump operates safely within its design performance range, ensuring no motor overload.

Engineering Summary

The ZW Series Self-Priming Non-Clogging Submersible Sewage Pump operates based on an axial flow self-priming principle. It combines a specially designed pump casing and impeller flow channels, ensuring smooth flow of liquid while handling solids and long fibers efficiently. The pump retains a certain amount of liquid inside the casing after shutdown, enabling quick self-starting. The self-priming capability can reach up to 5 meters, making it an ideal solution for applications where submersible pumps cannot be used, providing a reliable ground-based alternative.

Typical Applications

The ZW Series Non-Clogging Self-Priming Submersible Sewage Pump is suitable for various applications, including but not limited to:

• Municipal wastewater treatment and discharge systems

• Industrial wastewater discharge (chemical, paper, food processing, etc.)

• Residential sewage lifting stations

• Municipal wastewater treatment plant discharge systems

• Civil defense and emergency drainage facilities

• Sewage discharge in hospitals, hotels, and public buildings

• Construction site and municipal project drainage

• Auxiliary dewatering in mining operations

• Rural biogas pits and agricultural irrigation

The pump is designed to handle sewage, wastewater containing solid particles, and lightly corrosive liquids, as well as clean water.

System & Operation

Components & Supply

• Single-channel or dual-channel non-clogging impeller design, improving the ability to handle solids and long fibers.

• Abrasion-resistant mechanical seals made from hard alloys for long-lasting, reliable sealing performance.

• Compact structure, low noise, and small footprint, making the pump easy to maintain and repair.

• Optional fully automatic control panel for start/stop control based on liquid level changes.

Technical Specifications

Operating Conditions

• Liquid Temperature:
  • Standard pump: −15°C to +70°C
  • Hot water pump: +70°C to +120°C

• Ambient Temperature: Up to +40°C

• Maximum Working Pressure: 10 bar

• Maximum Allowable Inlet Pressure: Limited by system working pressure

• Fluid Requirements:
  • Clean, low-viscosity, non-flammable, sulfur-free liquids, free from solid particles or fibers
  • Suitable for pumping mineral water, softened water, purified water, light oils, and mild chemical fluids
  • If the liquid’s density or viscosity exceeds that of water, a higher-rated motor should be selected
  • The pump’s suitability for specific liquids depends on factors such as chloride content, pH, temperature, and solvent/oil content

Service Conditions

• Installation Altitude: Must not exceed 1000 meters; for higher elevation applications, specify at the time of order for appropriate configuration.

• The pump must not be used in flammable or explosive environments, nor should it handle combustible liquids.

• Installation should be in a well-ventilated, dry, and vibration-free location.

• Maximum ambient temperature should not exceed +40°C.

Protection Functions

• The motor should be equipped with overload, phase failure, and overheat protection devices to prevent damage under abnormal conditions.

• Dry-run protection is recommended to prevent mechanical seal failure in case of insufficient water supply.

• Pressure switches or variable frequency drives (VFDs) should be used to maintain safe pressure ranges.

• Check valves and anti-backflow devices must be installed to prevent damage caused by reverse flow after shutdown.

Selection Criteria

• Select the pump model and number of stages based on required flow rate and head.

• Choose appropriate wetted materials (e.g., SS304, SS316L) based on fluid temperature, pH, and chloride content.

• Select sealing structure (mechanical seal or packing seal) based on the fluid’s corrosive properties.

• Ensure installation space and piping layout compatibility with the horizontal configuration.

• If the pumped liquid has higher viscosity or density than water, a higher-rated motor should be selected to meet the required shaft power.

Installation & Dimensions

Outline Drawing

Performance Data

Item No.	Name	Item No.	Name
1	Motor	12	Oil Chamber
2	Coupling	13	Oil Seal
3	Connection End Cover	14	Pump Cover
4	Bearing Press Cover	15	Impeller Nut
5	Mounting Plate	16	Impeller
6	Bearing Seat	17	Discharge Elbow
7	Bearing	18	Pump Body
8	Extended Shaft	19	Wear Plate
9	Support Tube	20	Base
10	Bearing	21	Discharge Pipe
11	Mechanical Seal

Performance Parameters

Model	Diameter	Flow Rate (m³/h)	Head (m)	Speed (rpm)	Power (kW)	Efficiency (%)
	mm	(m3/h)	(M)	(r/min)	(kw)	(%)
25-7-8-0.55	25	7	8	2900	0.55	45
25-8-22-1.1	25	8	22	2900	1.1	45
32-8-12-0.75	32	8	12	2900	0.75	48
32-12-15-1.1	32	12	15	2900	1.1	45
40-15-15-1.5	40	15	15	2900	1.5	48
40-15-30-2.2	40	15	30	2900	2.2	54
50-20-7-0.75	50	20	7	2900	0.75	51
50-10-10-0.75	50	10	10	2900	0.75	52
50-20-15-1.5	50	20	15	290	1.5	53
50-15-25-2.2	50	15	25	2900	2.2	54
50-18-30-3	50	18	30	2900	3	55
50-40-15-4	50	40	15	2900	4	55
50-25-32-5.5	50	25	32	2900	5.5	55
50-20-40-7.5	50	50	20	2900	7.5	58
65-25-15-2.2	65	25	15	2900	2.2	50
65-37-13-3	65	37	13	2900	3	57
65-25-30-4	65	25	30	2900	4	61
65-30-40-7.5	65	30	40	2900	7.5	56
65-35-50-11	65	35	50	2900	11	45
65-35-60-15	65	35	60	2900	15	65
80-40-7-2.2	80	40	7	1450	2.2	59
80-43-13-3	80	43	13	2900	3	70
80-40-15-4	80	40	15	2900	4	61
80-60-13-5.5	80	60	13	2900	5.5	67
80-65-25-7.5	80	65	25	2900	7.5	63
Model	Diameter	Flow Rate (m³/h)	Head (m)	Speed (rpm)	Power (kW)	Efficiency (%)
	mm	(m3/h)	(M)	(r/min)	(kw)	(%)
100-80-10-4	100	100	10	1450	4	65
100-100-15-7.5	100	100	15	1450	7.5	68
100-80-20-7.5	100	80	20	1450	7.5	65
100-100-25-11	100	100	25	1450	11	70
100-100-30-15	100	100	30	1450	15	65
100-100-35-18.5	100	100	35	1450	18.5	68
125-130-15-11	125	130	15	1450	11	72
125-130-20-15	125	130	20	1450	15	75
150-145-9-7.5	150	145	9	1450	7.5	76
150-180-15-15	150	180	15	1450	15	69
150-180-20-18.5	150	180	20	1450	18.5	72
150-180-25-22	150	180	25	1450	22	78
150-130-30-22	150	130	30	1450	22	78
150-180-30-30	150	180	30	1450	30	78
150-200-30-37	150	200	30	1450	37	73
200-300-7-11	200	300	7	980	11	66
200-250-11-15	200	250	11	1450	15	64
200-250-15-18.5	200	250	15	1450	18.5	73
200-400-10-22	200	400	10	1450	22	75
200-400-13-30	200	400	13	14501	30	76
200-300-15-22	200	300	15	1450	22	76
200-250-22-30	200	250	22	1450	30	71
200-350-25-37	200	350	25	1450	37	71
200-400-30-45	200	400	30	1450	45	74
Model	Diameter	Flow Rate (m³/h)	Head (m)	Speed (rpm)	Power (kW)	Efficiency (%)
	mm	(m3/h)	(M)	(r/min)	(kw)	(%)
250-600-9-30	250	600	9	980	30	78
250-600-12-37	250	600	12	1450	37	76
250-600-15-45	250	600	15	1450	45	73
250-600-20-55	250	600	20	1450	55	73
250-600-25-75	250	600	25	1450	75	71
300-800-12-45	300	800	12	980	45	74
300-480-15-45	300	480	15	1450	45	66
300-800-15-55	300	800	15	1450	55	73
300-600-20-55	300	600	20	1450	55	73
300-800-20-75	300	800	20	1450	75	75
300-950-20-90	300	950	20	1450	90	76
300-1000-25-110	300	1000	25	1450	110	76
300-1100-10-55	300	1100	10	1450	55	73
350-1500-15-90	350	1500	15	740	90	87
350-1200-18-90	350	1200	18	980	90	85
350-1100-28-132	350	1100	28	980	132	84
350-1000-36-160	350	1000	36	980	160	84
400-1760-7.5-55	400	1760	7.5	980	55	83
400-1500-10-75	400	1500	10	980	75	86
400-2000-13-110	400	2000	13	980	110	84
400-2000-15-132	400	2000	15	980	132	83
400-1700-22-160	400	1700	22	980	160	83
400-1500-26-160	400	1500	26	980	160	84
Model	Diameter	Flow Rate (m³/h)	Head (m)	Speed (rpm)	Power (kW)	Efficiency (%)
	mm	(m3/h)	(M)	(r/min)	(kw)	(%)
400-1800-32-250	400	1800	32	980	250	82
500-2500-10-110	500	2500	10	740	110	85
500-2600-15-160	500	2600	15	740	160	84
500-2400-22-220	500	2400	22	740	220	85
500-2650-24-250	500	2650	24	740	250	85

OEM & Custom

We offer OEM/ODM customization including stainless steel material, explosion-proof motors, custom voltage/frequency, and control cabinet integration. Options include adjustable length shafts, coupling configurations, and installation bases. All units undergo hydraulic and mechanical tests to meet ISO and CE export standards.

FAQs

1. Q: What is the main advantage of the YW vertical submerged pump?
   A: It combines a compact vertical structure with high hydraulic efficiency and reliable double mechanical seal protection for continuous submerged operation.
2. Q: What materials are available?
   A: Standard pumps use cast iron; stainless steel or duplex stainless materials are available for corrosive media.
3. Q: Can the pump operate fully submerged?
   A: Yes, the YW pump is designed for submerged operation with immersion depths up to 5–7 meters.
4. Q: How is the pump started and controlled?
   A: It can be manually operated or configured with an automatic control cabinet for water level detection and start/stop automation.
5. Q: Does it require frequent maintenance?
   A: No, the bearings and seals are durable; periodic inspection and oil replacement ensure long-term reliability.
6. Q: What voltage options are available?
   A: Standard 380V/50Hz; customized voltages and 60Hz versions are available for export markets.
7. Q: What are the main export applications?
   A: The YW pump is widely used in municipal sewage, construction drainage, and industrial wastewater systems across Southeast Asia, Africa, and the Middle East.