Orders are shipped within 2 to 4 business days Ex Warehouse. If you would like a more accurate time frame, please reach out to us.
We reserve the right to refund any order where freight is not a viable option. This is typically applicable to rural/remote areas where our couriers cannot service. We can accomodate rural/remote orders by arranging a custom freight quote - please reach out to us to arrange a quote.
Payment Methods
Budgeting for a renovation or new build? We have a range of options to pay including buy now and pay later solutions to suit your circumstances.
We accept the following methods; Visa, MasterCard, American Express, Afterpay and PayPal.
If you are a trade customer, please ‘add to quote’ and we will be in touch with trade pricing.
Delivery Services
See our delivery information for more details on our courier services.
Items will be dispatched from our Sydney/Melbourne/Brisbane warehouse as soon as we receive your order,for delivery timeframes, please see more here.
Estimate Shipping
Please see our Return and Cancellation Policy for more details.
Visit our help centre to view our full returns policy and more!
Returns Information
You have 30 days from date of purchase to return your product. For change of mind purchases, the customer is to return the goods to 2/71 Jijaws Street, Sumner at their expense. As the item has already been shipped, the initial shipping fee paid will not be refunded.
My order was damaged or faulty
Your satisfaction is our priority! If you've ordered an item that damaged or faulty, please email sales@plumbersupplies.com.au.
We encourage you to inspect all orders within 24 hours of receiving them, even if your renovation is not yet underway. We cannot accept damage claims after this 24 hour period as we cannot determine when or how the damage occurred.
We require photographic evidence of the damages are required within 24 hours of receiving an order.
We also do not accept damages that occur as a result of product installation.
Change of mind - within 30 days of purchase
You must return the goods to 2/71 Jijaws Street, Sumner QLD 4074. A restocking fee of 20% will be incurred across all items returned.
Each brand and product has different warranty timelines and conditions. Please click here for further information or email us at sales@plumbersupplies and we will be in touch.
Description
The Abey Air Admittance Valve 100mm (VP100) is a WaterMark certified, high-performance negative pressure relief valve designed for use on 100mm soil and waste stacks where conventional open-air venting through the roof is impractical, restricted, or not permitted under the installation conditions. Manufactured in Scotland to exacting quality standards, the VP100 provides a reliable, compliant and space-efficient alternative to traditional vent pipe penetrations, eliminating the need for additional roof flashings, external pipework and associated weatherproofing.
Key Features
- 100mm nominal diameter — suits standard 100mm soil and waste stack installations
- Air flow capacity of 47.2 L/s — sufficient for high-demand stack venting applications
- WaterMark certified — compliant with Australian plumbing standards for use in licensed installations
- Manufactured in Scotland — precision engineered to stringent quality and performance standards
- Automatic self-sealing operation — opens under negative pressure, closes airtight at neutral and positive pressure
- No external power or maintenance required — passive operation for the life of the installation
- Eliminates roof penetration venting — reduces installation complexity, flashings and weatherproofing requirements
- Suitable for new construction and retrofit — adaptable to a wide range of installation scenarios
Technical Specifications
- Product Code: VP100
- Brand: Abey (McAlpine)
- Size: 100mm
- Air Flow Capacity: 47.2 L/s
- Certification: WaterMark
- Country of Manufacture: Scotland
- Application: Soil and waste stack air admittance venting
Suitable Applications
The VP100 is the specified solution for 100mm soil stack venting in residential and light commercial buildings where roof penetration is not feasible due to architectural constraints, roof membrane integrity requirements, or building envelope specifications. It is equally suited to internal stack installations in multi-storey residential construction, apartment buildings, and renovation projects where extending existing vent pipework to the roof is not viable.
Common installation scenarios include soil stacks in internal bathrooms without roof access, extensions and additions where re-routing vent pipework is cost-prohibitive, and replacement of failed or undersized conventional vent terminations.
Installation Note
The Abey VP100 must be installed by a licensed plumber in accordance with AS/NZS 3500.2 and the relevant WaterMark certification conditions. The valve must be installed in an accessible location above the highest connected fixture water level, in a position that allows adequate air ingress and is protected from submersion. Local water authority requirements regarding the use of air admittance valves in lieu of open venting should be confirmed prior to specification.
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