QBY Diaphragm Pump – Complete Product Range and Selection Guide

The Full QBY Family
The QBY series covers eight standard sizes from 10 mm to 100 mm. Flow ranges from 0.8 m³/h to 30 m³/h. Head goes up to 60 meters. There’s a model for almost every job.

Complete Model Overview

Model	Port Size	Max Flow	Max Head	Solids	Material Options
QBY-10	10 mm	0.8 m³/h	60 m	1 mm	All
QBY-15	15 mm	1 m³/h	60 m	1 mm	All
QBY-25	25 mm	2.4 m³/h	60 m	2.5 mm	All
QBY-40	40 mm	8 m³/h	60 m	4.5 mm	All
QBY-50	50 mm	12 m³/h	60 m	8 mm	All
QBY-65	65 mm	16 m³/h	60 m	8 mm	All
QBY-80	80 mm	24 m³/h	60 m	10 mm	All
QBY-100	100 mm	30 m³/h	60 m	10 mm	All

How to Select
1.
Determine required flow and head
2.
Identify fluid type and chemical compatibility
3.
Choose body material accordingly
4.
Select diaphragm material for fluid
5.
Confirm air supply capacity

Final Advice

When in doubt, go one size larger. Running a pump at 80% capacity gives longer life than running at 100%.

Applications Summary:​

pump selection, fluid transfer, industrial pumping, chemical handling, wastewater, mining, food processing, general industry

Thank you for visiting HAQUANPUMP, your trusted partner for QBY pneumatic diaphragm pumps. If you need help selecting the right model or have any questions about your application, please contact our team. We’re here to provide the best solution for your fluid handling needs. Your satisfaction is our greatest reward.