Air Admittance Valves

Frajon 1-1/2" Air Admittance Valve

1-1/4" - 2" Studor? Mini-Vent® Air Admittance Valve

Can be used as an individual, branch, circuit or stack vent

Provides plumbing ventilation to prevent the loss of water seals in traps without the need for costly roof penetration and vent piping

Will vent up to 24 DFUs on stack

Expands architectural design limits

Will vent up to 160 DFUs on a branch

Reduces the number of fire-stopping applications

Exclusive vermin protection system

Limited lifetime warranty for replacement of defective valves

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.

For use as a secondary vent

Adapter allows solvent welding to 1-1/2 or 2inch Schedule 40 PVC pipe or threads into 2inch FIP fitting

One size approved to handle up to 3inch vent pipe

Each valve individually tested

Opens/closes as needed by buildings plumbing system

Studor? Redi-Vent® Air Admittance Valve for 1-1/2" or 2" pipe sizes

Provides ventilation to prevent the loss of water seals in traps without the need for expensive roof penetration and vent piping

Expands architectural design limits

Compact design for tight applications

Exclusive vermin protection system

Limited lifetime warranty for replacement of defective valves

3" - 4" Studor? Maxi-Vent® Air Admittance Valve

Can be used as an individual, branch, circuit or stack vent

Provides plumbing ventilation to prevent the loss of water seals in traps without the need for costly roof penetration and vent piping

Will vent up to 500 DFUs on a stack

Expands architectural design limits

Reduces the number of fire-stopping applications

Exclusive vermin protection system

Limited lifetime warranty for replacement of defective valves

Oatey's Air Admittance Valve installation kit includes (1) Sure-Vent 20 DFU Branch / 8 DFU Stack Air Admittance (1) 1-1/2" P-trap, (1) 6" extension tube, (1) PVC threaded adapter and (1) deep box flange. The Sure Vent® Air Admittance valve is a one-way valve designed to allow air into the plumbing drainage system when negative pressures develop in the piping system. Superior engineering along with stringent quality standards ensure unmatched performance as a secondary vent. Oatey products have earned the trust of plumbing professionals for over 100 years.

Connection size 1-1/2" and Adapter size 1-1/2", approved to handle up to 2" vent pipe

Sweet Spot technology opens valve at -0.01 psi and seals at 0 psi and above

Vents up to 24 DFU branch of 8 DFU stack

Screening on air inlets to guard the seal,

Protective sleeve provides grip for installation and keeps valve free from debris

Complies to ASSE standard 1050 & 1051