Blog
The actual suction head and flow rate of the self-priming pump
Release time:
2025-08-22
Information summary: A typical self-priming pump has a suction lift of 3-6 meters, with higher suction lifts reaching around 7-8 meters. The highest head for a self-priming pump is 80 meters. Some smaller pumps can reach over 100 meters, but their flow rate is relatively low.
A typical self-priming pump has a suction lift of 3-6 meters, with higher suction lifts reaching around 7-8 meters. The highest head for a self-priming pump is 80 meters. Some smaller pumps can reach over 100 meters, but their flow rate is relatively low.
Self-priming pumps are self-priming centrifugal pumps with advantages such as compact structure, easy operation, stable operation, simple maintenance, high efficiency, long life, and strong self-priming capacity. No foot valve is required in the piping; prior to operation, it is sufficient to ensure a constant amount of liquid is present in the pump body. Different materials can be used for different liquids.
The working principle of a self-priming pump is that the pump casing is filled with water (or water is already present in the pump casing) before the pump is started. After startup, the impeller rotates at high speed, causing water in the impeller grooves to flow into the volute. This creates a vacuum at the inlet, causing the water inlet check valve to open, allowing air in the suction pipe to enter the pump and reach the outer edge through the impeller grooves.
Related news
Follow Us
Phone/Whatsapp: +8618167050167
E-mail:info@gookingpumps.com
Wechat: gookingpump
Address: No.500 Jingyuan Road, Fengjiang Street, Luqiao District, Taizhou City, Zhejiang Province, China.
Copyright: Zhejiang Gooking Pump Technology Co., Ltd Powered by www.300.cn SEO