Non-clogging Submersible Sewage Pump

The Non-clogging Submersible Sewage Pump is an ideal solution for sewage drainage, municipal wastewater treatment and environmental protection engineering. It is widely deployed for wastewater handling in venues including hospitals, hotels, residential communities and subway stations. Additionally, it works well for slurry drainage at construction sites. Featuring excellent non-clogging performance, this pump is also capable of conveying water mixed with soft fibrous substances.

Parameters

Non-clogging Submersible Sewage Pump installation method

1.Auto-coupled installation

The pump is placed down along with the dude rod and automatically connected to the drainage pipeline system. Less cost for mounting and lowering the cost for repairing of submersible sewage pump.

2.Moveable hard pipe installation

The pump is supported by its foundation, the hard pipe is connected to the pipeline system.

3.Moveable soft pipe installation

The pump is supported by its foundation, the soft pipe joint is connected to the outlet rubber pipe, of multiple purpose easy to be mounted, the pump can be easily moved from one sewage well to another.

4.Fixed dry installation

For those pump system able to be subjected to water flood and for connecting to wet/dry well or pipeline.

5.Fixed wet installation

The pump is supported by its foundation and fixed on the bottom of the sewage well with the outlet connected to the pipeline, vertically mounted.

Submersible Sewage Pump advantages

Application Scenarios

Our open impeller sewage pumps are widely used in:
Municipal wastewater lift stations – Designed for continuous operation under frequent start/stop conditions, with verified performance over 15,000 operating cycles.
Construction site dewatering – Suitable for wastewater containing high levels of sand and suspended solids, handling slurry with up to 15% solid concentration while reducing impeller wear.
Hospital and hotel sewage sumps – The open impeller structure allows passage of fibrous materials such as surgical gauze, hair and sanitary wipes, helping prevent blockages compared with traditional closed-impeller pumps.
Subway station drainage systems – Compact design with automatic coupling installation enables quick pump removal and maintenance in space-limited underground environments.

Why choose us

1.Rich production experience, able to quickly propose specific and suitable solutions for customers' installation conditions;
2.Multiple materials to choose from for the product, like cast iron/SS304/SS316/SS316L/Duplex
3.Purchase warranty: at least 18 months from shipment or 12 months from commissioning, whichever comes first
4.Quick after sale service: reply to clients questions within 12 hours

Warranty and Repair

Warranty: 18 months from shipment date or 12 months from the date of completion of commissioning, whichever comes first.
Value-added services: Free remote video commissioning guidance

FAQ

1. What is the main advantage of an open impeller over a closed impeller in sewage pumps?

The main advantage of an open impeller is its improved resistance to clogging. Compared with closed impellers that have narrower flow passages, the open-vane design allows fibrous materials such as hair, gauze, rags, and suspended solids to pass through more easily.

In sewage applications containing sand or abrasive particles, open impellers also maintain more stable performance because there is no wear ring clearance that directly affects pump efficiency. As wear increases, the performance reduction is usually more gradual compared with closed impeller designs.

2. What is the maximum solid size this pump can handle?

The standard Non-clogging Submersible Sewage Pump can pass solids up to Φ76 mm. For applications requiring larger particle handling, customized impeller designs are available with a maximum solid passage of up to Φ100 mm.

The actual solid passage depends on the pump model, motor power, and operating conditions. Our engineers will confirm the suitable configuration based on flow rate, head, and medium characteristics.

3. Can the pump handle hot water or corrosive liquids?

Yes. The pump material and sealing configuration can be selected according to the operating environment:

Medium temperature up to 40°C: Standard cast iron construction with nitrile rubber seals is suitable for general sewage applications.

Medium temperature up to 80°C: High-temperature mechanical seals (SiC/SiC) and Class H insulation are recommended for continuous hot water operation.

Corrosive sewage (pH 2–12): Stainless steel options including SS304, SS316, SS316L, and Duplex Stainless Steel (2205/2507) are available for the impeller and pump casing.

Please provide the liquid temperature, pH value, and chemical composition when selecting the pump, so the appropriate material combination can be recommended.

4. Does open impeller design reduce pump efficiency compared to closed impeller?

Under clean-water conditions, closed impellers may achieve slightly higher peak efficiency, usually around 2–3% higher depending on the hydraulic design.

However, sewage applications often contain fibers, solids, and abrasive particles. In these conditions, open impellers can maintain more stable operating performance because they reduce clogging risks and are less affected by wear-related clearance changes.

Our hydraulic design is optimized to maintain reliable efficiency during long-term operation in sewage environments, especially where blockage and abrasive wear are common concerns.

Get Your Customized Pump Suggestion in 24 Hours

Please provide: Flow (m³/h) + Head (m) + Liquid Temperature + Solid Content Description

Our application engineer will reply with preliminary model selection, CAD drawing (upon request), and budget price within one business day.

Contacts

Vicky Zhao / Sales Director
E-mail: vicky@tjaote.cn
MP: +86-151005630(Wechat / Whatsapp)
SKYPE: vickyzhao6688