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Key Points for Winter Sealing and Maintenance of Sewage Discharge Pump

Time:2026-10-31 10:42:32  Edit:HuaQuan  Traffic Index:
The sewage discharge pump is special wastewater equipment for transporting impurity-laden wastewater. It lifts and transfers sewage by the impeller and is available in submersible and self-priming types. Suitable for collection wells, basements, factory areas and other sites, it completes pumping and drainage of sewage and combined rain and sewage.
 
Ⅰ. Features of Sewage Discharge Pump
The sewage discharge pump adopts an anti-clogging flow passage design with good impurity passing capacity to avoid jamming. Equipped with reliable mechanical seals, it delivers superior waterproof performance and adapts to humid sewage conditions. It can be fitted with an automatic control system to start and stop linked to water levels. It supports flexible installation and easy maintenance for long-term stable continuous operation.
 
Ⅱ. Huaquan Power is a professional manufacturer of Sewage Discharge Pumps
Shandong Huaquan Power Co., Ltd. (referred to as Huaquan Power), equity code 171006. Its business covers power generation equipment, new energy energy storage equipment, high and low voltage complete sets of equipment, power engineering, flood control and emergency equipment and other fields. It owns self-developed brands including Huaquan, HQ-POWER and HUAQUAN. Its products are sold across all provinces and municipalities in China and exported to many countries. Zhao Lizeng, the founder of the company, won the Weifang Mayor Quality Award.
 
Ⅲ. Advantages of Sewage Discharge Pump
1. With anti-tangling flow channel design, the sewage discharge pump handles sewage containing fibers and fine solid impurities.
2. Excellent sealing protection and medium corrosion resistance for longer service life.
3. The sewage discharge pump supports automatic liquid level control for stable unattended sewage discharge.
4. Multiple optional installation structures to adapt to different on-site civil engineering conditions.
5. The sewage discharge pump features an easy-to-disassemble structure for simple troubleshooting and parts replacement.
 
Ⅳ. Key Points for Winter Sealing and Maintenance of Sewage Discharge Pump
1. As temperatures drop, idle sewage discharge pumps require standardized sealing and maintenance to prevent cracking, rusting and seal failure, ensuring normal operation in the next year.
2. Lift the sewage discharge pump out of the sewage tank after shutdown. Rinse the pump cavity, impeller and water inlet repeatedly with clean water to remove sludge, hair and fibrous debris. Dried impurities inside the pump will continuously corrode metal and rubber components. Wipe the whole pump dry after cleaning.
3. Open all drain plugs of the sewage discharge pump and fully drain residual water inside the pump casing, pipelines and cooling chambers. Water expands when frozen in low temperatures and may crack the pump body and damage mechanical seals. Briefly jog the unit after draining to expel leftover water. Apply a thin layer of anti-rust grease on rotating parts such as impellers and pump shafts.
4. Check whether the cable sheath is worn or corroded. Arrange and bind the cables, and store them in a dark and dry place to avoid rodent damage and aging. The sewage discharge pump should preferably be stored indoors in a dry and ventilated area, raised by supports away from moisture. Cover it with a dust cover to prevent dust accumulation.
5. Do not place heavy objects on the sewage discharge pump during storage. Manually rotate the pump shaft regularly to prevent the bearings and impeller from seizing due to rust. Before reuse the next year, inspect seals, cable insulation and rotation flexibility. Connect the pump to pipelines only after all checks pass.
 
Ⅴ. FAQ of Sewage Discharge Pump
1. What causes low water output of the sewage discharge pump?
Blocked inlet, worn impeller or sediment-clogged pipelines will reduce flow rate.
2. How to deal with a faulty liquid level controller of the sewage discharge pump?
Clean sludge on the probe and check for damaged wiring.
3. Is heavy vibration during operation normal for the sewage discharge pump?
No. It is usually caused by unbalanced impellers or loose bottom fixing.
4. Do rubber seals of sewage discharge pumps age easily in winter?
Humidity plus low temperature accelerates aging. Dry storage slows the process.
5. Should multiple sewage discharge pumps be stored separately?
Yes, to avoid scratches on housings and accessories from collision.
6. Is anti-rust grease necessary before sealing the sewage discharge pump?
It is recommended for rotating parts to lower rust risk during long idle periods.
 
Ⅵ. Application Fields of Sewage Discharge Pump
1. The sewage discharge pump lifts and drains rainwater and sewage from collection wells in underground garages and civil air defense projects.
2. Collect and transfer factory production wastewater to follow-up sewage treatment facilities.
3. Gather sewage from basements of residential communities and deliver it to municipal sewage pipelines.
4. The sewage discharge pump transfers wastewater in underground spaces of shopping malls, hotels and other commercial buildings.
5. Collect and transport sewage and manure wastewater in breeding farms for treatment.
6. The sewage discharge pump drains temporary ponding at low-lying municipal points and construction sites.
More information about Sewage discharge pump: http://www.weifangbl.com/

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Company Name:SHANDONG HUAQUAN POWER CO.,LTD