Dirt and Air Separators

Our range of high quality separators includes air separators, dirt separators and combined dirt and air separators. We also produce the CXX combined a dirt and air separator with a balancing tank, offering excellent value when compared to separate units.

CXA - Air Separator

The Dutypoint CXA air separator units are installed to efficiently remove air and micro bubbles from the system. In heating systems, an air separator should be installed in the flow loop where the system experiences the highest temperature (next to the heat source) and lowest pressure. Air separators should ideally be installed immediately after the boiler and prior to the pump suction port as this is where the formation of micro bubbles is greatest. In a chilled water system the unit must be located in the return loop just prior to the chiller.

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Standard Technical Features

  • Efficient removal of air and micro bubbles in pipework
  • Stainless steel element guaranteed for life
  • Designed and manufactured in accordance with the Pressure Equipment Directive 97/23/EC


  • Larger units up to DN600 available on request
  • Non-standard connections

Separator Specification

Body Carbon steel - ST 37
Connections Standard: Flanged PN16
Maximum Working Temperature 110°C
Maximum Working Pressure 10 Bar
Internal Element AISI 304 Stainless Steel

Air Vent Specification

Body Brass
Connections Screwed
Maximum Working Temperature 110°C
Maximum Working Pressure 10 Bar
Float Polypropylene

Below is a selection of documents relating to this product range. Any downloads which relate to individual product models, including dimensional drawings, are found in the 'Variants / CAD' tab.


    Dutypoint Dirt and Air Separators File Size: 1.79 MB

    Sales brochure for the Dutypoint Systems range of dirt and air separators.


    CX O&M Manual File Size: 251 kB

    Dutypoint CX Separators Operation and Maintenance Manual

Model No. Flow Rate (m³/h) DN (mm) OD (mm) Volume (L) Weight (kg) Downloads
CX50A 8 50 60 5
CX65A 15 65 76 5
CX80A 20 80 88 17
CX100A 30 100 114 17
CX125A 50 125 139 50
CX150A 75 150 168 50
CX200A 125 200 219 100
CX250A 200 250 273 210
CX300A 275 300 323 360

If you would like to request further information, a quotation or you would like to arrange a no-obligation discussion with a member of our team, please fill in this form and we will contact you shortly.

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