Air Admittance Valves & Parts

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STUDOR Redi-Vent 1-1/2 in. - 2 in. PVC Air Admittance Valve Adapter
STUDOR Redi-Vent 1-1/2 in. - 2 in. PVC Air Admittance Valve Adapter
Item # 452516

Simplify drainage and waste venting with the STUDOR Redi-Vent Air Admittance Valve. The unique design of the STUDOR Redi-Vent provides ventilation to prevent the loss of water seals in traps without the need for expensive roof penetration and vent piping. For residential or commercial use.

  • Exclusive vermin protection system
  • Compact design for tight applications
  • Maximum working temperature is 150
  • Unique design
  • Residential or commercial use
  • Limited warranty for replacement of defective valves

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STUDOR STUDOR 1-1/2 in. or 2 in. Connection, Mini-Vent Air Admittance Valve with PVC Adapter
STUDOR STUDOR 1-1/2 in. or 2 in. Connection, Mini-Vent Air Admittance Valve with PVC Adapter
Item # 451153

With its compact design, the STUDOR Mini-Vent Air Admittance Valve with PVC Adapter offers a simple drain and waste venting solution. Great for venting a single fixture or a group of bathroom fixtures, the Mini-Vent air admittance valve is designed to fit 1-1/2 in. and 2 in. pipes and excels in tight applications. This 1-way valve automatically opens and takes in fresh air when negative pressure (suction) occurs from a fixture discharging into the plumbing system. When the water flow stops, the Mini-Vent closes naturally due to gravity, preventing the circulation of any bad bathroom or drain odors. With a capacity of 160 DFUs (drain fixture units) on a branch and 24 DFUs on a stack, this economical negative pressure valve creates essential ventilation that prevents the loss of water seals in traps, eliminating the need to install expensive and unsightly roof penetrations and vent piping. Designed for residential and commercial use, the STUDOR Mini-Vent Air Admittance Valve (AAV) can be used in conjunction with other STUDOR AAVs to complement larger high-rise building drainage systems. The active air valve is designed with an exclusive vermin protection system to keep out insects and foreign objects.

  • Compact air admittance valve with PVC adapter
  • Ideal for a single fixture or group of fixtures, capacity of 160 DFUs (drain fixture units) on a branch and 24 DFUs on a stack
  • Creates ventilation that prevents the loss of water seals in traps, uses gravity to automatically close seal and prevent circulation of unpleasant bathroom or drain odors, exclusive vermin protection system keeps out bugs and foreign objects
  • Fits 1-1/2 in. and 2 in. piping, temperature rating of minus 40°F to 150°F (minus 40°C to 65.6°C), complies to ANSI/ASSE 1050 and 1051, this style air admittance valve is not recognized as a mechanical vent in the international building code
  • Exclusive vermin protection system
  • Limited lifetime warranty

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Oatey Sure-Vent 1-1/2 in. PVC Air Admittance Valve with 20 DFU Branch and 8 DFU Stack
Oatey Sure-Vent 1-1/2 in. PVC Air Admittance Valve with 20 DFU Branch and 8 DFU Stack
Item # 205395535

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 1-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
  • Complies to ASSE standard 1050 and 1051
  • 1-size approved to handle up to 2 in. vent pipe
  • Offers unmatched breathing capability with a unique sealing system
  • Closes by gravity
  • Limited warranty

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Oatey 1-1/2 in. ABS In-Line Cheater Air Admittance Vent
Oatey 1-1/2 in. ABS In-Line Cheater Air Admittance Vent
Item # 100204205

Help prevent sewer gas from entering your home while you vent your drain line with the Oatey 1-1/2 in. ABS In-Line Cheater Vent. This spring-loaded vent uses negative pressure to open and positive pressure to close. Also replaces secondary stack venting.

  • ABS construction
  • Use to vent drain lines
  • Helps prevent sewer gas from entering your home
  • Push to connect
  • Spring-loaded to open with negative pressure and close with positive pressure
  • NSF-24 listing for use in recreational vehicles

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STUDOR Maxi-Vent Air Admittance Valve (6/Case)
STUDOR Maxi-Vent Air Admittance Valve (6/Case)
Item # 452524

The unique design of the Studor Maxi-Vent provides plumbing ventilation to prevent the loss of water seals in traps without the need for costly roof penetration and vent piping. Can be used as an individual, branch, circuit or stack vent. Will vent up to 500 DFUs on a stack. Residential or commercial use.

  • Limited lifetime warranty
  • Will vent up to 500 DFUs on a stack
  • Reduces the number of fire-stopping applications
  • Exclusive vermin protection system
  • Expands architectural design limits
  • Residential or commercial use

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