ZW Self-priming Sewage Pump Selection

ZW self-priming sewage pump is an efficient and convenient sewage treatment equipment designed specifically for transporting sewage containing solid particles, fiber materials, and various waste liquids. One of its prominent features is its strong self-priming ability. The pump needs to be filled with water when first used, and there is no need to refill water every time it is started, which greatly facilitates operation. In addition, it has superior throughput capability and can handle larger solid particles and fibers, making it particularly suitable for wastewater environments containing impurities.

Choosing a suitable ZW self-priming sewage pump requires comprehensive consideration of multiple factors, including medium properties, pump parameters, and operating environment. Here is a detailed selection guide:

1. Medium Properties

• content of solid particles and fibers: determine the size and content of solid particles and fibers in the conveying medium, and select the pump type with corresponding passing capacity.

• corrosivity: pumps made of corrosion-resistant materials (such as stainless steel, cast iron or special alloys) shall be selected according to the chemical properties of the medium.

2.Pump Parameters

• flow (q): select the flow that meets the actual demand, usually in cubic meters per hour (m ³/h).

• head (H): determine the head according to the conveying height and pipeline resistance, generally in meters (m).

• self priming height: determine the self priming height of the pump to ensure that the pump can normally inhale liquid.

3. use environment

• installation location: determine the installation space and location of the pump, and select the appropriate pump type and installation method.

• power supply conditions: select the motor with corresponding voltage and power according to the site power supply conditions.

• ambient temperature: ensure the normal operation of the pump within the working ambient temperature range.

4. specific application

• municipal sewage: for municipal sewage treatment plants and sewage pumping stations, select pumps with large flow and high capacity.

• industrial wastewater treatment: corrosion resistant and abrasion resistant pumps shall be selected for plant wastewater treatment.

• construction site drainage: it is necessary to treat mud, sand and gravel mixture, and select pumps with high throughput and high wear resistance.

• agricultural drainage and irrigation: anti clogging and corrosion-resistant pump type shall be selected for farmland drainage and irrigation.

5. material of pump

• cast iron pump: suitable for general sewage with high cost performance.

• stainless steel pump: suitable for highly corrosive liquids, such as chemical wastewater.

• special alloy pump: suitable for highly corrosive or highly abrasive liquids.

6. other considerations

· maintenance and repair: select a pump with simple structure and easy disassembly for later maintenance.

· brand and after-sales service: choose a brand with good reputation and perfect after-sales service to ensure long-term stable operation.