Difference Between YW Liquid-Submerged Pump & Fully Submersible Sewage Pump

Many purchasers confuse YW liquid-submerged sewage pump and fully submersible sewage pump (QW/WQ series), there are essential structural and application differences:
（1）Structural Layout
YW pump: Vertical liquid-submerged type, pump body under liquid, motor installed above liquid surface, no motor soaking risk.
Fully submersible pump: Whole pump including motor completely immersed in sewage during operation.
（2）Maintenance Convenience
YW pump: Motor above water, easy daily inspection, motor fault maintenance without draining sewage pool.
Submersible pump: Need to lift entire pump out of water for any motor maintenance, high operation cost.
（3）Construction Cost
YW pump does not need sealed waterproof pump pit, simple pool civil engineering; submersible pump requires waterproof pool cover and lifting device.
（4）Application Scenario
YW pump: Long-term continuous operation factory sewage station, municipal wastewater pool, medium with high solid particle content.
Submersible pump: Temporary short-time drainage, small domestic sewage, shallow liquid level environment.
（5）Service Life
YW pump motor avoids long-term liquid soaking, lower insulation aging speed, longer overall service cycle under heavy load sewage transportation.
If the project requires stable long-term unattended operation with high fiber/solid sewage, YW Type Liquid-Submerged Sewage Pump is more suitable.

Need More Information?

If you need more technical information about YW Type Liquid-Submerged Sewage Pump or have any questions regarding installation, operation, maintenance and model selection, please feel free to contact the engineering and technical team of Haquan Pump & Valve. We will provide you with professional and thoughtful service wholeheartedly. Your full satisfaction is our top priority.