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QBY Diaphragm Pump – Variable Flow Control by Air Regulation — QBY Air-Operated Diaphragm Pump (AODD)
QBY Air-Operated Diaphragm Pump (AODD)

QBY Diaphragm Pump – Variable Flow Control by Air Regulation

Simple Flow AdjustmentMost pumps need variable frequency drives or complex controls to change flow. The QBY adjusts flow with a simple air regulator. Turn the knob to increase or decrease speed.How It…

Specifications
Flow Rate0-30m³/h
Head0 – 50 / 70m
Inlet / Outlet Diameter10 – 100mm
MaterialPP Engineering Plastic, Aluminum Alloy, Cast Iron, Stainless Steel
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Product Overview

Simple Flow Adjustment
Most pumps need variable frequency drives or complex controls to change flow. The QBY adjusts flow with a simple air regulator. Turn the knob to increase or decrease speed.
How It Works
Higher air pressure makes the pump stroke faster. Lower pressure slows it down. Flow is proportional to stroke speed. This gives infinite adjustment within the pump’s range.
Practical Benefits
•
Match flow to process requirements
•
Reduce splashing during filling
•
Extend diaphragm life at lower speeds
•
Save compressed air when full flow isn’t needed


Alternative Method
Install a throttle valve on the discharge line. Closing the valve increases backpressure and slows the pump.
Applications Summary:​
variable flow pumping, process control, filling operations, chemical dosing, flow regulation, industrial fluid handling


Thanks for reading from HAQUANPUMP. We supply QBY diaphragm pumps with simple flow control. Ask about air regulation accessories.

Typical Applications

  • variable flow pumping
  • process control
  • filling operations
  • chemical dosing
  • flow regulation
  • industrial fluid handling

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