CATHAY self-priming sewage pump does not require water diversion and is highly efficient in pumping sewage containing impurities

CATHAY self-priming sewage pump: no need to fill water, efficient solution for sewage suction

1. Self-priming core, realize non-filling pump start

CATHAY self-priming sewage pump adopts a unique gas-liquid mixed self-priming structure. The pump body is equipped with a separation chamber and a reflux channel. It can be started without pre-filling the pump with water. When starting, the motor drives the impeller to rotate at high speed (speed 1450-2900r/min). The impeller mixes the air in the pump casing with the residual liquid to form a gas-liquid mixture. The centrifugal force of the impeller throws the mixture to the separation chamber. The gas rises and is discharged in the separation chamber, and the liquid returns to the impeller inlet through the reflux channel. The cycle is repeated until the air in the pump is exhausted, forming a vacuum and sucking in sewage, completing the self-priming process. The self-priming height can reach 3-8 meters, and the self-priming time only takes 30-120 seconds. The flow range of a single pump is 5-500m³/h, and the head covers 8-80 meters, which can meet the needs of rapid suction and transportation of various types of sewage.

2. Multi-scenario adaptation to cope with complex sewage environments

Municipal sewage discharge: In scenarios such as urban road waterlogging, community septic tank cleaning, and municipal pipe network dredging, CATHAY self-priming sewage pumps can efficiently pump sewage containing impurities such as silt, feces, and fibers. The pump body adopts a non-clogging impeller design (single-channel or double-channel structure), which can pass solid particles with a diameter of ≤50mm to avoid fiber entanglement and impurity jamming, ensure continuous and smooth sewage discharge, and help the urban drainage system to quickly restore its function.

Industrial wastewater treatment: Suitable for wastewater collection and transportation in factory workshops, and can treat industrial sewage containing oil, metal debris, and chemical agents. For corrosive wastewater (such as electroplating wastewater and pickling wastewater), the pump body is made of 316 stainless steel, and the impeller is made of acid-resistant and alkali-resistant alloy, which can resist chemical erosion of sewage, ensure long-term stable operation of the equipment, and no leakage risk.

Agricultural irrigation and breeding: Excellent performance in farmland drainage, fish pond dredging, and farm manure treatment. Small self-priming sewage pumps can directly extract muddy water containing sediment from rivers and ponds to provide water for farmland irrigation; in farms, they can pump sewage containing feces and feed residues. The surface of the pump body is treated with anti-sticking to reduce dirt adhesion and reduce the difficulty of cleaning, which helps agricultural production and environmental protection of aquaculture.

Construction: used for foundation pit drainage and mud transportation at construction sites. The equipment can pump muddy water containing masonry debris and concrete residues. The impeller is made of high-chromium cast iron (Cr20), which has strong wear resistance and can withstand continuous scouring of hard particles, ensuring that construction drainage is not interrupted and the progress of the project is guaranteed.

Emergency drainage: equipped with a mobile trailer or trolley frame, it can quickly rush to the flood disaster site for emergency drainage of urban waterlogging and underground garage waterlogging. The large-flow model can drain more than 500 cubic meters per hour, which can remove accumulated water in a short time and reduce disaster losses.

3. Performance advantages to ensure efficient and stable operation

Strong self-priming ability: The unique gas-liquid separation structure and impeller design ensure rapid self-priming under low liquid level and long suction conditions, with a self-priming success rate of 100%, solving the tedious problem of manual filling of traditional centrifugal pumps, especially suitable for field operations or scenes without fixed water sources.

Excellent anti-blocking performance: The impeller and pump casing flow channel are optimized, with low liquid flow resistance and good impurity permeability. It can transport sewage with a solid content of ≤15%. Compared with ordinary self-priming pumps, the blockage rate is reduced by more than 80%, reducing downtime caused by cleaning blockages.

Efficient and energy-saving operation: With the use of high-efficiency hydraulic models, the pump efficiency can reach 70%-85%, which is 10%-15% energy-saving than similar products. The motor is equipped with a variable frequency control system, which can automatically adjust the speed according to the amount of sewage, reduce energy consumption at low load, and save more than 20% of annual operating costs.

Easy operation and maintenance: One-button start design, no professional operation is required, ordinary people can get started after simple training; the pump body is equipped with an inspection window and a sewage outlet to facilitate regular cleaning of internal impurities; wearing parts (such as mechanical seals and impellers) are modularly installed, which is convenient and quick to replace, and the maintenance time is shortened to less than 30 minutes.

4. Structural design, taking into account durability and safety

High-strength pump body: It is made of cast iron or stainless steel as a whole, with a strong structure and strong impact resistance. It can withstand pressure fluctuations and impurity impact during sewage transportation, and its service life is 5-8 years.

Reliable sealing system: It adopts double-end mechanical seals, and the dynamic and static rings are made of silicon carbide and graphite materials, which are wear-resistant and high-temperature resistant, with stable sealing performance and a leakage rate of less than 0.1ml/h, which prevents sewage leakage from polluting the environment. It is especially suitable for transporting toxic and harmful sewage.

Motor protection is in place: The motor adopts IP55 protection level, which can resist dust and water spray. The winding insulation level is F level. It can operate safely in high temperature environment. It is equipped with overheating, overload and phase loss protection devices. When the motor is abnormal, it will automatically shut down to avoid equipment damage.

Noise reduction design: The impeller is dynamically balanced, with low vibration and noise less than 75 decibels during operation; shock-absorbing pads are installed at the bottom of the pump body to reduce resonance noise with the ground, improve the working environment, and meet environmental noise standards.

5. CATHAY brand guarantee, full-time caring service

CATHAY self-priming sewage pump strictly follows quality standards from design to production. Each device undergoes self-priming performance test, pressure resistance test and sewage operation test before leaving the factory to ensure performance meets the standards. The professional technical team recommends the most suitable equipment model and configuration plan according to the customer's usage scenario, sewage properties, flow and head requirements; provides on-site installation and commissioning services to ensure the perfect connection between the equipment and the sewage system; after the equipment is put into use, the 7×24-hour after-sales hotline responds at any time to provide fault diagnosis, maintenance, parts replacement and other services, and the key parts are guaranteed for 1 year, so that customers can use it without worries.

Choose CATHAY self-priming sewage pump to enjoy the convenience of no water diversion, anti-blocking and durable reliable performance, making sewage suction and transportation more efficient and worry-free, and helping various industries to smoothly carry out sewage treatment and production operations.

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