Microbubble Deaerator 28mm
Remove Air from the Heating Circuit
Air inside a closed heating system can cause several problems.
For example, it can create noise, reduce circulation and contribute to corrosion. It can also make commissioning more difficult.
A microbubble deaerator continuously helps separate small air bubbles from circulating system water.
The collected air can then leave the system through the deaerator.
Premium microbubble separators use the same principle to remove circulating and trapped air from heating and cooling systems.
Ideal for Air Source Heat Pumps
Air source heat pumps rely on good water circulation between the outdoor unit and the heating system.
Therefore, removing unwanted air from the circuit can form an important part of correct system commissioning.
The 28mm connection makes this version suitable for compatible systems using 28mm heating pipework.
However, always follow the heat pump manufacturer’s hydraulic requirements.
What Is a Microbubble Deaerator?
A microbubble deaerator is an air separation device for sealed heating systems.
Unlike a basic automatic air vent, it works on air travelling within the circulating water.
As water passes through the unit, tiny bubbles can separate from the water. The valve then allows collected air to escape.
As a result, the system can require less manual venting.
Spirotech describes this type of product as removing circulating air, microbubbles and trapped air from heating systems.
Microbubble Deaerator vs Automatic Air Vent
An automatic air vent normally releases air that collects at a high point or inside a component.
A microbubble deaerator performs a different job.
It actively separates very small bubbles from circulating water as it passes through the unit.
Therefore, the two products should not automatically be treated as interchangeable.
A heating system may use both types of air removal device.
Why Air Removal Matters
Removing air can help improve heating system operation.
Potential benefits include:
- Reduced system noise
- Less frequent manual venting
- Improved water circulation
- Reduced trapped air
- Better heat transfer
- Improved commissioning
- Reduced risk of air-related corrosion
- More consistent heating performance
However, a deaerator cannot correct poor system design or incorrect commissioning.
Suitable Applications
The 28mm Microbubble Deaerator can suit compatible:
- Air source heat pump systems
- ASHP replacement and repair work
- Central heating systems
- Underfloor heating systems
- Low-temperature heating systems
- Closed heating circuits
- New heating installations
- Heating system upgrades
- Servicing and maintenance work
28mm Heating Connection
This version is designed for 28mm pipework.
Therefore, always check the existing pipe size before ordering a replacement.
Also, confirm the installation position and available space.
If you are replacing an existing deaerator, compare both the connections and system requirements.
Where Should a Microbubble Deaerator Be Installed?
Position can affect how effectively a deaerator works.
In general, air separation equipment works best at a suitable point within the heating circuit. However, the correct location depends on the system design.
Therefore, installers should follow the heat pump or heating-system manufacturer’s instructions.
Also follow any flow direction or mounting instructions supplied with the deaerator.
Useful for Heat Pump Replacement Work
The growing number of UK heat pump installations means more systems will eventually require service components.
A deaerator may need replacement because of:
- Leakage
- Damage
- Blocked air release
- Poor operation
- System modification
- Heating system refurbishment
- Original component failure
This 28mm unit provides a replacement option where the pipe size and system specification match.
Technical Specifications
| Specification | Details |
|---|---|
| Product | Microbubble Deaerator |
| Connection Size | 28mm |
| Application | Closed heating systems |
| Suitable Systems | Compatible ASHP, heating and UFH systems |
| Function | Air and microbubble separation |
| Use | New installations, maintenance and replacement |
Important: I have deliberately not added an unverified pressure rating, temperature rating or glycol percentage. These should only be added once we have the exact manufacturer’s technical data for your valve.
Why Buy From Kudos Trading?
Kudos Trading supplies heating and plumbing components to professional installers throughout the UK.
We are also expanding our range of air source heat pump replacement parts and accessories.
Therefore, installers can source more of the components required for ASHP commissioning, repair and maintenance from one supplier.
In addition, our team can help with product and sizing questions before you order.
Frequently Asked Questions
What Does a Microbubble Deaerator Do?
It helps separate tiny air bubbles from circulating heating water.
The collected air then leaves the system through the deaerator.
Do Heat Pumps Need a Microbubble Deaerator?
Some heat pump systems use dedicated air separation equipment.
However, requirements vary between manufacturers and installations.
Always follow the hydraulic design for the heat pump being installed.
Is This the Same as an Automatic Air Vent?
No.
An automatic vent mainly releases collected free air. A microbubble deaerator also targets very small bubbles travelling through circulating water.
What Size Pipe Does This Version Fit?
This product is the 28mm version.
Check the existing pipework before ordering.
Can I Use It on Underfloor Heating?
Yes, where the system design and installation requirements allow.
Underfloor heating systems can benefit from effective air removal because trapped air can affect circulation through the loops.
Can This Replace an Existing Heat Pump Deaerator?
Potentially, yes.
However, confirm the connection size, system requirements and installation arrangement first.
Do not select a replacement solely because both products have 28mm connections.
Does a Microbubble Deaerator Remove Dirt?
Not necessarily.
A standard microbubble deaerator removes air. Combination air and dirt separators are separate products unless the specification states otherwise.
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Next Working Day Delivery
All orders placed before 12pm are dispatched the same day for next working day delivery.
Our heating and plumbing products are shipped securely using trusted couriers, including DPD and Pallet Network.
UK delivery options and charges depend on the order and postcode.
Collection Available
You can also collect your order directly from our Nottingham warehouse during our opening hours.
