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Round silver aluminium air admittance valve with adhesive strips

Studor

Studor 20398 MAXI-CAP Air Admittance Valve

SKU CH-R6MZ-Y2Z52

Aluminum air admittance valve with round 6 7/8 in diameter and 3 5/8 in height, includes two double-sided adhesive pieces

  • ColorSilver
  • Aluminium construction resists corrosion in plumbing systems
  • MAXI-CAP design provides reliable air admittance for drainage
  • Universal compatibility fits multiple pipe configurations
  • Includes two double-sided adhesive pieces for secure mounting
  • Silver unfinished finish suits industrial and residential installations

Studor 20398 MAXI-CAP Vent Cap

The Studor 20398 MAXI-CAP is an aluminum air admittance valve finished in silver. It functions as a vent cap for plumbing drainage systems. The round body measures 6 7/8 inches in overall diameter and 3 5/8 inches in height. The package includes two pieces of double-sided adhesive for installation.

Suitable Applications and Limitations

This vent cap suits installations requiring a universal-fit aluminum vent with adhesive mounting. It is not for buyers who need a specific pipe-size connection or threaded attachment. It is not for systems that require a ligature-resistant fitting. It is not for applications demanding a specified flow rate or gauge rating.

Aluminum Construction with Adhesive Mount

The valve body is made from unfinished aluminum and uses the included double-sided adhesive for placement. This construction defines its compatibility with universal mounting surfaces rather than threaded or sized pipe connections. The adhesive method is the primary specification determining if this part fits the intended installation.

Highlights

  • Aluminium construction resists corrosion in plumbing systems
  • MAXI-CAP design provides reliable air admittance for drainage
  • Universal compatibility fits multiple pipe configurations
  • Includes two double-sided adhesive pieces for secure mounting
  • Silver unfinished finish suits industrial and residential installations

Specifications

ColorSilver
BrandSTUDOR

Questions about this item

Will the aluminium valve body or the double-sided adhesive pads need replacement after years in the drainage system?

The aluminium construction resists corrosion in normal venting use, while the two adhesive pads are single-use during installation and are not intended for later servicing.

What is the first performance limit reached when the valve operates continuously under heavy fixture discharge?

The valve opens at minimal negative pressure and closes by gravity, so sustained high flow simply keeps it open until the pressure equalises.

Does the MAXI-CAP generate any noise, heat or extra power draw when it cycles all day?

It operates passively with no moving parts that consume energy, producing only the faint sound of air entering the pipe during venting.

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