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Komfort+ Underfloor Heating Manifold Auto Air Vent AAV 1/2″ MBSP

£6.49 inc VAT (£5.41 ex VAT)

Introducing the Komfort Manifold Automatic Air Vent, the perfect solution for maintaining efficient and effective heating systems. Designed to automatically remove trapped air in closed circuit hot water systems, this high-quality valve prevents air locks, excessive noise, and corrosion, ultimately reducing maintenance costs. Constructed from durable solid brass and heat-resistant polypropylene, it ensures longevity and reliability. With versatile connection options including MBSP, compression, or push-fit, the Auto Air Vent easily screws directly into your Underfloor Heating Manifold or can be used throughout your radiator system. Keep your heating system running smoothly with the Komfort Automatic Air Vent! Please see technical information below…

Availability: 287 in stock

Technical Data:

  • 1/2″ MBSP thread
  • Operating pressure:   Max 10bar (145 psi)

Our Komfort MK3 Auto Air Vent will fit most UFH Manifolds with a 1/2″ FBSP Outlet.

Specification / Working Guide

The top vent (female screw cap – purple arrow) is the manual vent. If water is coming out when this is opened it simply means there is no air within the system.
This vent should be left closed unless there is excess air within the system that needs to be vented manually.

The automatic air/bleed vent (male screw – red arrow) is the lower vent on the side of the valve, this screw can be backed off to allow automatic venting. If water is coming from this portion, the screw should be threaded in until the flow of water stops, and left in this position.

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  • Definitely recommend the company.

    Easy to order and exactly what I required. Items were well packaged and delivered quickly. As described and perfect fit.

  • Great Service

    Liz was very helpful guiding me how to order the correct parts. Next day delivery if ordered before 2.00pm was promised and arrived at 10.00am the next day.

  • Usual excellent service

    The usual swift efficient service with technical advice available when needed. Competitive pricing is always appreciated.

  • Great Service.

    The ease of ordering and prompt delivery which was a full 24hrs faster than expected

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