McAlpine Air Admittance Valve - VP100N

The McAlpine VP100N Ventapipe 100 Air Admittance Valve is a plumbing device designed to allow air ...

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Product Information

Full details

This guide is for anyone using or considering the McAlpine VP100N Air Admittance Valve, a crucial component for venting soil and ventilating stacks in plumbing systems. The VP100N allows air into the drainage system, preventing vacuum issues and foul odors from entering your living space. Note that while easy to install, this valve requires proper connection to a 4"/110mm soil pipe for optimal performance.

All features

Model Part NumberVP100N
BrandMcAlpine

Extended Product Information

FAQs

What is the purpose of the McAlpine VP100N?

The VP100N is designed to allow air into the drainage system to prevent negative pressure and the entry of foul odors.

What size pipe is the VP100N compatible with?

It is compatible with 4"/110mm soil pipes.

How do I install the VP100N?

Install it by cleaning the pipe end and valve outlet, applying solvent cement, and inserting the valve firmly into the pipe. Allow cement to cure.

How often should I inspect the valve?

Periodically check for any signs of damage or blockage.

What should I do if I smell sewer odors?

Check the valve and connections for leaks or blockages. Ensure proper sealing.

What is the airflow capacity of the VP100N?

The airflow capacity is 19.4 l/s.

Is the VP100N A1 rated?

Yes, it is A1 rated.

Troubleshooting

Foul odors detected.

Check the valve for proper seal and that it is securely connected to the pipe. Inspect for any potential blockage or damage to the valve.

Slow draining fixtures.

Inspect the valve to ensure it's not blocked. Check for any obstructions in the connecting pipework.

Gurgling sounds from drains.

Check the valve for proper function. It may not be admitting air correctly.

Valve not sealing properly.

Inspect the sealing diaphragm inside the valve and ensure it's clean and undamaged. If damaged, replace the valve.

Pros and Cons

Pros

  • Prevents negative pressure in drainage systems.
  • Eliminates the need for external venting, saving space and installation time.
  • Reduces the risk of foul odors entering the building.
  • Easy to install with solvent weld connection.
  • A1 Rated for reliability and performance.

Cons

  • Requires compatibility with 4"/110mm soil pipes.
  • Cannot be used in all plumbing configurations.
  • Requires correct installation to ensure proper function.
  • The valve's effectiveness depends on the overall drainage system design.
  • Regular inspection may be needed to ensure proper function.

Setup, Compatibility & Care

Setup

  1. Ensure you have a 4"/110mm soil pipe to connect the valve.
  2. Clean the pipe end and the valve outlet to ensure a good bond.
  3. Apply solvent cement to both the pipe and valve outlet.
  4. Insert the valve firmly into the pipe fitting, ensuring a secure connection.
  5. Allow the solvent cement to cure according to the manufacturer's instructions.

Compatibility

The VP100N is compatible with standard 4"/110mm soil pipes. Ensure that your existing plumbing system meets this requirement.

Care

The valve requires minimal maintenance. However, it's recommended to:

  • Inspect the valve periodically for any signs of damage or blockage.
  • Ensure that the valve is not obstructed by debris or foreign objects.
  • If you notice any issues with performance (e.g., odors, slow draining), check the valve for any obstructions or damage. Replace if necessary.

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