Common Types of Self-Priming Pumps

The ZW series self-priming pump is an energy-efficient product developed by absorbing, digesting, and improving upon relevant domestic and international technical data. As a self-priming centrifugal pump, it features a compact structure, ease of operation and maintenance, smooth running, high efficiency, long service life, and strong self-priming capabilities. It eliminates the need for a foot valve in the pipeline; only a specific amount of priming liquid needs to be retained in the pump casing before operation, thereby simplifying the piping system and improving working conditions.
Main Applications:
1. When equipped with a rocker-arm sprinkler, it can spray water into the air, dispersing it into fine droplets for irrigation-making it an excellent tool for farms, nurseries, orchards, and tea plantations.
2. Suitable for handling fresh water, seawater, chemical media with acidic or alkaline properties, and general paste-like slurries (medium viscosity ≤ 100 cP; solids content up to 30%).
3. Compatible with any model or specification of filter press; it is the ideal pump for feeding slurry into filter presses for filtration.
The ZW series self-priming non-clogging sewage pump is a new type of pump that integrates self-priming and sewage discharge functions. Developed by combining the structural and performance characteristics of the ZX self-priming centrifugal pump and the QW submersible sewage pump-while incorporating the advantages of similar international products-it offers significant versatility. Like standard clear-water self-priming pumps, it requires no foot valve or manual priming. Additionally, it can handle sewage, sediments, mining waste, fecal matter, general engineering wastewater, and colloidal liquids containing large solid particles (up to 60% of the discharge outlet diameter) and fibers (up to 1.5 times the impeller diameter). It drastically reduces manual labor intensity, is easy to install and use, requires minimal maintenance, and achieves advanced international performance standards, offering broad market potential and promising prospects for development.