Toll-Free (800) 217-7930

The FraJon Air Admittance Valve (AAV)

One AAV…fits two different sizes to connect it to your DWV system!

Frajon Valves
ModelDescription
FA1520FraJon AAV with Dual Size Connector
FA15FraJon AAV with 1 ½” FPT x H Socket
ASSE

The FraJon
Air Admittance
Valve (AAV)
Model: FA1520

Downloadable PDF
Spec Sheet

Air Admittance Valve

Vent Pipe Terminals
Vent Pipe Terminals

Listings/Certifications:

ANSI/ASSE 1050 Stack AAVs
for Sanitary Drainage Systems.
ANSI/ASSE 1051 Individual and Branch
Type AAVs for Sanitary Drainage Systems.

Features/Benefits:

  • One Valve fits either over 1 ½” or into 2” Schedule 40 vent pipe. The FA 1520’s unique connector let’s you solvent weld the connector either over 1 ½” or into 2” DWV pipe (Sch 40). The FA 1520 connector makes it quick and easy to install on a vent pipe terminal.

  • The compact FA1520 AAV is rated for 6, 20 and up to 160 DFU’s The FA 1520 replaces the need to carry multiple sizes on a job (see DFU chart below). Plus it’s small profile makes it easier to install in tight spaces.

The FraJon FA 1520 AAV is:

  • Compact
  • Quick and easy to install
  • ASSE 1050 & 1051 A&B
  • ASTM F1498 MPT/FPT pipe threads
  • AAVs reduce the number of roof penetrations which decrease the cost of construction with labor and materials

Vent Pipe Terminals
Vent Pipe Terminals

Female Adaptor

The FraJon
AAV
Model: FA 15
with 1 1/2"
Female
Adaptor

Downloadable PDF
Spec Sheet

Listings/Certifications:

ANSI/ASSE 1050 Stack AAVs
for Sanitary Drainage Systems.
ANSI/ASSE 1051 Individual and Branch
Type AAVs for Sanitary Drainage Systems

Features/Benefits:

  • One Valve threads into the adaptor that fits over the 1 ½” Schedule 40 vent pipe. The FA15 Female Adaptor FPT x HUB let’s you solvent weld the adaptor over the 1 ½” DWV pipe (Sch 40). The FA15 adaptor makes it quick and easy to install on a vent pipe terminal.

  • The compact FA15 AAV is rated for 6, 20 and up to 160 DFU’s (see DFU chart below). Plus its small profile makes it easier to install in tight spaces.

The FraJon FA 15 AAV is:

  • Compact
  • Quick and easy to install
  • ASSE 1050 & 1051 A&B
  • ASTM F1498 MPT/FPT pipe threads
  • AAVs reduce the number of roof penetrations which decrease the cost of construction with labor and materials

The same compact valve…multiple applications!
The FraJon AAV Model FA15 or FA1520 will work for all DFU rated applications as listed below.

DFU Chart


Vertical
Stack Size
(ASSE 1050)



Max
DFU’s

1 1/2 “ 8
2” 24
3" N/A
4" N/A


Horizontal
Branch Size
(ASSE 1051)



Max
DFU’s

1 1/2 “ 3
2” 6
3" 20
4" 160

What is a DFU and why is it important?

A DFU - Drainage Fixture Unit is a measurement rating of the load factor on the drainage waste vent system (DWV). Each appliance that’s connected to a DWV system has a DFU rating. Frajon AAV’s are marked with their DFU rating.

Knowing the DFU Ratings of an AAV is important for sizing the appropriate rated AAV to the drainage waste vent system.

Location Requirements:

A FraJon AAV may be used in Residential, Commercial and Industrial Buildings for secondary Stack and Individual and Branch Type Air Admittance Valves (AAVs) for Sanitary Drainage Systems.

Downloadable PDF
Design Criteria Sheet

U.S. Patent 5,419,366 & 7,270,146
Other Patents Pending

Code References:

Warranty:
Lifetime Limited Warranty for replacement of the FraJon AAV.

Call or Email us today for information on our latest promotions.