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.
SKU: 42814763
MFG: 39239
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DETAILS
DESCRIPTION
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.
Highlights:
- Includes: 1 valve and necessary tubular pieces.
- Valve – PVC with 1-1/2" NPT Threads.
- Tension Membrane – Neoprene.
- Adapter – 1-1/2" Polypropylene.
- Complies to ASSE Standard 1050 and 1051.
- One size approved to handle up to 2" vent pipe.
- Opens/closes as needed by building's plumbing system.
- Rated 6 DFU’s for venting DWV 2" and smaller.
- Sweet Spot technology opens at -0.01 psi and seals at 0 psi and above.
- Screening on air inlets to guard the seal.
- Protective rubber sleeve provides grip for installation and keeps valve free from debris.
- 100% functionally tested at 1/4" H2O and 30” H2O ensuring trouble free performance.
- Air admittance valves provide an alternative to secondary venting when utilized within the scope of model plumbing codes referenced standards and installation nstructions.
Listings:
- ASSE 1050 & 1051
- ICC ESR-1664
- NSF Standard 14
- IAPMO – Classified Mark
- ASTM D 2665/D 2661
Code Approvals:
- International Plumbing Code (IPC) 2003.
- International Residential Code (IRC) 2003.
