Product Overview

The WQ-type non-clog submersible sewage pump is a new generation of pump products successfully developed based on the introduction of advanced foreign technology, combined with the specific usage characteristics of domestic pumps. It features remarkable energy-saving performance, anti-entanglement capabilities, complete blockage resistance, automatic installation, and intelligent automatic control. Additionally, this pump excels in efficiently handling solid particles and long-fiber waste materials.

This series of pumps features a unique impeller design and a new type of mechanical seal, enabling efficient handling of fluids containing solid particles and long fibers. Compared to conventional impellers, the pump impeller in this series adopts either a single-channel or dual-channel configuration, resembling a bent pipe with an identical cross-sectional area. This design ensures excellent flow characteristics. Combined with a carefully engineered volute chamber, the pump achieves high efficiency. Additionally, the impeller undergoes rigorous static and dynamic balancing tests, ensuring smooth operation with zero vibration during runtime.

This pump boasts advanced and mature hydraulic performance. Product tests have confirmed that all performance indicators meet the relevant standard specifications. Since its introduction to the market, the product has been widely welcomed and highly praised by users for its unique functionality, reliable performance, and consistently stable quality.

Product Features

1. Employing a large-flow, anti-clogging hydraulic component design significantly enhances the ability to pass debris, effectively allowing the pump to handle fibrous materials up to 5 times the pump's diameter and solid particles with diameters approximately 50% of the pump's caliber.

2. The design is well-optimized, paired with a suitable motor that delivers high efficiency and significant energy-saving performance.

3. The pump shaft undergoes chrome plating, significantly enhancing its corrosion resistance and wear resistance, thereby substantially extending the service life of the entire pump.

4. The cable-to-motor connection utilizes an integral rubber-sheath vulcanization technique, ensuring long-lasting and reliable waterproof performance.

5. The mechanical seal employs a double-stage tandem sealing design, featuring hard, corrosion-resistant tungsten carbide material. This design ensures durability and excellent wear resistance, enabling the pump to operate safely and continuously for over 8,000 hours.

6. The pump features a compact structure, small footprint, easy mobility, and simple installation—eliminating the need for a dedicated pump room. It can operate directly when submerged in water, significantly reducing project costs.

7. The pump oil chamber is equipped with an oil-water probe. When the mechanical seal on the pump side fails, water enters the oil chamber, triggering the probe to send a signal and activating protection for the pump.

8. An automatic safety protection control cabinet can be equipped according to user requirements, providing monitoring for pump-related issues such as water leakage, electrical leakage, overload, and overheating, thereby ensuring reliable and safe pump operation.

9. The dual-rail automatic coupling installation system greatly facilitates the installation and maintenance of the pump, eliminating the need for personnel to enter and exit the sewage pit for this purpose.

10. The float switch can automatically control the pump's start and stop based on the required water level changes, eliminating the need for dedicated personnel to monitor it.

11. Ensure the motor operates within its rated head range without overload.

12. Depending on the application, the motor can be equipped with a water-jacketed external circulation cooling system, ensuring safe operation of the electric pump even in waterless (dry) conditions.

13. Installation methods include fixed automatic coupling installation and mobile free installation, catering to various usage requirements.

Applicable Scenarios for the Product

1. Discharge of severely polluted wastewater from industrial and commercial facilities.

2. Urban Sewage Treatment Plant Drainage System

3. Sewage pumping station in the residential area.

4. Civil Defense System Drainage Station

5. Wastewater discharge from hospitals and hotels.

6. Municipal engineering projects and construction sites.

7. Exploration and supporting auxiliary equipment for mining operations.

8. Rural biogas ponds for agricultural irrigation.

9. Water supply system of the waterworks facility.

Operating Conditions of the Pump

1. The medium temperature shall not exceed 60°C, with a specific gravity ranging from 1.0 to 1.3 kg/dm³ and a pH value between 5 and 9.

2. For pumps without an internal self-circulation cooling system, the motor section must not extend more than 1/2 above the liquid level.

3. In general, the pump must be operated within its specified head range to ensure that the motor is not overloaded. If operation across the full head range is required, please specify this clearly at the time of order placement so that the manufacturer can make appropriate adjustments during production.

4. During operation, the pump motor current must not exceed the motor's rated current.

Structural Description

The WQ-type non-clog submersible sewage pump consists of two main components: the motor and the pump, which are separated by an oil-isolation chamber and a mechanical sealing assembly. It is an integrated electromechanical product, with the motor and pump sharing the same shaft (rotor). This design ensures a compact structure and a short overall pump length, enhancing its space efficiency and ease of installation. Equipped with multiple protective devices, the pump operates safely and reliably. The primary functions of its key components are as follows:

Signal Line 1: Equipped with a fully protected water pump control cabinet, providing comprehensive safeguarding for the pump, including protection against leakage, phase failure, short circuit, overheating, and motor overload.

Motor Stator 8: Equipped with Class B or Class F insulation.

Leakage detection probe 11: This component is installed inside the oil chamber. When the mechanical seal fails and water enters the oil chamber, the probe sends a signal to the control system, triggering protective measures for the pump.

Mechanical Seal 13: Employs a dual-stage tandem sealing design, utilizing a new type of highly corrosion-resistant tungsten carbide material. It features reliable sealing performance, excellent wear resistance, and an extended service life.

Impeller 17: The impeller features a single-channel or dual-channel design, offering exceptional passage capabilities that allow it to handle large materials and fibrous debris effectively, thereby minimizing blockages and entanglement issues.

Pump Body 15: Designed for use with the impeller to ensure high pump efficiency.

Sealing Ring 18: Installed at the pump body's wear ring. When the impeller causes wear at the wear ring due to operation, the sealing ring can be replaced to ensure the pump operates at optimal efficiency.

	1	Signal Line	11	Oil and Water Probe
	2	Motor Wiring	12	Oil Chamber
	3	Connection Box	13	Mechanical Seal
	4	Motor Cover	14	Rear Cover Plate
	5	Bearing	15	Pump Body
	6	Upper Shaft Seat	16	Impeller Bolt
	7	Motor housing	17	Impeller
	8	Fixed Substrate	18	Sealing Ring
	9	Shaft (rotor)	19	Chassis
	10	Bearing

Performance Parameter Table