White Knight CBA Series Debubblers

Remove Bubbles from Chemical Delivery Processes


CBA Series debubblers reduce bubbles from high-purity chemical delivery and wafer process systems. They feature 4-in inside diameters, which offer debubbling greater surface area. They are available in various connectable pipe lengths. They feature configurable port connections, and tongue-and-groove seals. Liquid level sensor to mount is available.

CBA Debubbler Pressure Vessels
CBA Series Specification Sheet
CBA Owner’s Manual
CBA-4A-1 Exploded ViewsCBA-4A-2 Exploded ViewsCBA-4A-3 Exploded ViewsCBA-4A-4 Exploded ViewsCBA-4A-5 Exploded ViewsCBA-4A-6 Exploded Views
CBA Ordering InstructionsRequest QuoteLocate Distributors
White Knight Two-Year Warranty
White Knight Ultra-Pure PTFE and PFA Pump Materials
Chemical Recirculation and Delivery 7 Bar (100 psi) Pressures
Fluid Temperatures to 100 Degrees Celsius (212 Degrees Fahrenheit)

Features & Benefits

  • Process-safe, chemically-resistant PTFE and PFA flow paths
  • Up to 7 Bar (100 psi) pressures
  • Up to 100°C (212°F) temperatures
  • Chemical delivery and wafer process debubbling
  • Leak-Free Tongue-and-Groove seals
  • Extruded PFA pipe with threaded connections offer easy setup and maintenance without welding
  • Pressure capabilities offer high flow rates for faster processes
  • Models capable of up to 6 liters
Debubbler Operation Diagram with Sensors


CBA Series debubblers redirect flow upward and slows the fluid so that air bubbles rise within the chamber. As air collects at the top, the liquid level drops until the lower sensor detects a low liquid level and signals a valve to open to releases air via the drain vent. As air vents, the liquid level rises until the upper sensor detects a high liquid level and signals the valve to close.

Debubbler Applications

Remove Bubbles After Pumps

Chemical enters the debubbler through the stand tube. Level sensors 1 and 2 control the collected air volume in the debubbler. Collected air exits through the vent line.

Debubbler Removing Bubbles After Pump
Debubbler Removing Bubbles After Pump

Remove Bubbles Before Pumps

Chemical is pulled into the debubbler through the stand tube. Level sensors 1 and 2 control air collection level to purge the collected air, a vacuum is required to remove collected air. This can be achieved using a venturi-type vacuum.

Debubbler Removing Bubbles Before Pump
Debubbler Removing Bubbles Before Pump

Automate Drum Change

Level sensors 1 and 2 act to keep bubbles from the drums from continuing through to the pump. Level 3 indicates an empty drum. This can be used as an automatic drum switch or as a drum empty signal.

Debubbler Automated Drum Change with Empty Signal
Debubbler Automated Drum Change with Empty Signal


[mm] inches

mm (in)AB
1 liter295 (11.6)132 (5.2)
2 liter434 (17.1)272 (10.7)
3 liter572 (22.5)409 (16.1)
4 liter798 (31.4)632 (24.9)
5 liter935 (36.8)772 (30.4)
6 liter1074 (42.3)980 (38.6)


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