Valve Open
Valve closed
The two diagrams illustrate how Ventapipe functions. The valve diaphragm lifts and allows air to be drawn into the system when it is subjected to negative pressure. On cessation of negative pressure the diaphragm returns to the closed position thereby preventing the escape of foul air into the building. The valve is designed to open and close spontaneously when required thereby allowing a supply of air to adequately ventilate the system thus ensuring a smooth discharge.
The purpose of this video is to educate people in the plumbing industry about the benefits of fitting an AAV by explaining how they work and where they are used.
McAlpine plumbing products are designed and manufactured to be installed by qualified plumbing professionals. On this basis we cannot accept installation queries from the general public. Please contact your local McAlpine stockist or a qualified plumbing professional. For all other enquiries please fill out the form below.
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Company registration number: SC006445
Registered company address:
Kelvin Avenue,
Hillington,
Glasgow G52 4LF
