RECENTLY VIEWED
Skip to main content
DK Hardware Professional Tax Exempt? Net 30? - DK Net Terms
Roll over image to zoom in
Product Features
Product Overview
Related Videos
Reviews
Questions & Answers
See reviewsSee reviews
30 Days Easy Return. We are the largest supplier of the most adaptable, personalized hardware in the industry. We work hard to ensure you're satisfied with our products.
Features
- Complies to ASSE standard 1050 and 1051
- For use as a secondary vent
- One size approved to handle up to 4" vent pipe
- Opens/closes as needed by building\'s plumbing system
- Schedule 40
Packaging Type
Boxed
Defective Code
A
Each Weight
0.800 LB
End 1 Size
3"
Hazardous Material
No
Returnable
Yes
Velocity
X
Body Material
PVC
Product Type
Air Admittance Valve
Lead Content
Lead-Free
Adjustable
No
Product Overview
The purpose of an air admittance valve is to provide a method of allowing air to enter the plumbing drainage system without the use of a vent extended to open air and to prevent sewer gases from escaping into a building. An air admittance valve is a one way valve designed to allow air to enter the plumbing drainage system when negative pressures develop in the piping system. The device shall close by gravity and seal the vent terminal at zero differential pressure (no flow conditions) and under positive internal pressures.