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McAlpine Air Admittance Valve - VP1W

McAlpine Air Admittance Valve - VP1W

The McAlpine VP1W Ventapipe 25 Air Admittance Valve with 1½" BSP thread on outlet is a plumbing co...

Best current price£10.63from eBay

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Mcalpine VP1W Ventapipe 25 Air Admittance Valve With 1.5"" Bsp Thread On Outlet

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Mcalpine Unisex White Vp1w Ventapipe 25 Air Admittance Valve With 1.5" Bsp Thread On Outl In

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eBayMcalpine VP1W Ventapipe 25 Air Admittance Valve With 1.5"" Bsp Thread On Outlet
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DebenhamsMcalpine Unisex White Vp1w Ventapipe 25 Air Admittance Valve With 1.5" Bsp Thread On Outl In
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£11.74
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OnBuy.comMcalpine Vp1w Ventapipe 25 Air Admittance Valve With 1½" Bsp Thread On Outlet 5036484005786
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B&QB&Q - Vp1W Ventapipe 25 Air Admittance Valve With 1.5" Bsp Thread On Outlet
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£12.47
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AmazonMcalpine White Air Admittance Valve
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Product Information

Full details

This guide is for plumbers and homeowners using the McAlpine VP1W Ventapipe 25 Air Admittance Valve. The primary benefit is preventing vacuum build-up in drainage systems, ensuring efficient water flow and preventing foul odors. A key consideration is its compatibility with 1½" BSP threaded pipes. This guide provides comprehensive information on setup, usage, and troubleshooting.

All features

Model Part NumberVP1W
BrandMcAlpine

Extended Product Information

FAQs

What is the purpose of the McAlpine VP1W?

The McAlpine VP1W is an air admittance valve that allows air into the drainage system, preventing vacuum and ensuring proper drainage function.

What size pipe does it fit?

It fits 1½" BSP threaded pipes.

How do I install the VP1W?

Simply screw it onto the 1½" BSP threaded outlet of your drainage system.

Where should the valve be installed?

Install the valve vertically, where the air inlet is accessible and unobstructed.

What is the A1 rating?

The A1 rating indicates that the valve meets industry standards for performance and safety.

How do I clean the valve?

Regularly inspect and remove any debris that may obstruct the valve's air inlet. Use a soft brush or cloth.

What should I do if my drains are still gurgling?

Check the valve for blockage and ensure proper installation. Also check for blockages elsewhere in the drainage system.

Troubleshooting

Drains are still gurgling or slow.

Check the valve for blockage. Remove the valve and inspect for debris. Clean or replace if necessary.

Foul odors are present.

Ensure the valve is properly sealed. Check for leaks around the valve connection.

Water is backing up.

Check for blockages in the drain lines. The valve itself rarely causes backup, but it may indicate an issue downstream.

Pros and Cons

Pros

  • Prevents drain traps from being emptied by siphonage.
  • Eliminates gurgling noises in drains.
  • Easy to install with a 1½" BSP thread.
  • Improves drainage efficiency.

Cons

  • Requires access for installation and potential maintenance.
  • May require replacement over time.
  • Not suitable for all drainage applications.

Setup, Compatibility & Care

  1. Installation: The VP1W valve installs directly onto a 1½" BSP threaded pipe.
  2. Compatibility: It is designed to work with 1½" diameter pipes, common in UK plumbing systems.
  3. Positioning: Install the valve vertically, ensuring the air inlet is unobstructed and positioned where air can easily enter.
  4. Care: Regularly check the valve for any blockages or debris. Clean if necessary, ensuring the air inlet remains clear for optimal performance.
  5. Environment: The valve should be installed in a location protected from extreme temperatures and direct sunlight to ensure durability.

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