What is an Air & Dirt Separator?
An air and dirt separator is a critical plant room component installed in hydronic heating and cooling systems. It continuously filters out unwanted microbubbles and system debris from the circulating fluid. Without separation, trapped air causes pump cavitation, noisy pipes, and accelerated internal corrosion, while loose sediment blocks valves and reduces heat transfer efficiency.
Why choose Rapidvent Separator?
- The Rapidvent separator maximizes commercial HVAC performance and extends equipment lifespan through an efficient mechanical separation process:
- High-Efficiency Microbubble Brush: Inside the cylindrical body, a specialised brush component breaks the water pressure flow. This forces microbubbles to separate, rise to the top, and automatically vent out without needing manual intervention.
- Heavy-Duty Sediment Collection: As fluid passes through, heavy dirt particles lose velocity and drop safely into the bottom collection chamber, preventing system blockages.
- Zero-Downtime Maintenance: System flushing is incredibly straightforward. Debris can be periodically released via the included drain valve without shutting down the system.
- Commercial Grade Build: Engineered for demanding environments, it features robust Flanged PN16 connections, a 10 Bar maximum working pressure, and a high temperature threshold of up to 110°C.
Key Product Features
- Microbubble Brush Technology: Internal brush design slows fluid flow to actively force trapped air bubbles to the surface.
- Automatic Air Venting: Automatically releases separated gasses continuously without any manual intervention or system downtime.
- Integrated Drain Valve: Built-in collection chamber valve allows fast sediment flushing during quick, routine servicing.
- Flanged PN16 Connections: Heavy-duty, industry-standard flanged inlets and outlets ensure secure installation on large commercial lines.
- High-Spec Tolerances: Engineered to reliably handle severe conditions up to 10 Bar working pressure and 110°C fluid temperatures.
- Scalable Commercial Sizing: Stocked in versatile industrial dimensions ranging from 50mm up to 200mm to match massive system requirements.
- Rapidvent Air and Dirt separator removes air, microbubbles and dirt from hydronic heating and cooling systems.
- It reduces the risk of corrosion, blockages and premature equipment wear.
- PN16 rated inlet and outlet connections for reliable performance.
- Available in sizes up to DN150 to suit a wide range of systems.
| Product Type | Air and Dirt Separator |
| Brand | Rapidvent |
| Size Range | 50mm - 150mm |
| Application | Commercial Hydronic Heating and Cooling Systems |
| Connection Rating | PN16 |
| Separation Technology | Microbubble Separation System |
| Order Value | Delivery Charges (Excluding VAT) |
|---|---|
| Above £325 | Free |
| Under £325 | £15 |
Returns/Refunds And Cancellations:
- You can cancel your order and get a full refund anytime before we confirm your order via email.
- Orders cancelled after the order confirmation is sent may attract a restocking fee.
- If you want to return insulation that was ordered in excess or not of use anymore, you can return them within 14 days from the date of receipt, provided they are unused and in a resalable condition. Please contact us via email and we will assist you accordingly.
- If the product is damaged on receipt, email us immediately
For more information on returns and deliveries, please refer to our delivery information page.

