Keep Your Central Heating System Air-Free with the Boiler-M8 Air-Separator 22mm

Trapped air in a central heating system can cause uneven radiator performance, noisy pipes, corrosion and premature boiler or pump failure. The Boiler-M8 Air-Separator 22 mm combats this by combining automatic air venting with stainless steel debris filtration — all within a robust brass body.

Why Choose This Air-Separator?

• Automatic air-venting – removes trapped air quietly and continuously to maintain system efficiency and reduce noise. 
• Automatic debris filtration – stainless steel filter traps non-magnetic sludge and debris, helping protect the boiler, heat exchanger and system. 
• Full-bore brass body with 360° diverter – designed for high-performance, minimal pressure drop, and flexible installation. 
• Industry-leading warranty – a 25-year guarantee for peace of mind on the body material.

Installation & Usage

1. Install on the **flow pipe from the boiler**, ensuring correct arrow-direction. 
2. Ensure the body is mounted **vertically**, allowing air to rise into the vent chamber.
3. During system refill, add the correct corrosion inhibitor and vent radiators as necessary.
4. Annual check: verify vent pin operation and flush filter if heavy debris is present. 

Technical Specifications

Install it once and let your system stay air-free, efficient and protected.