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The
Air Admittance Valve is a fire-rated air vent that saves money
for plumbing contractors and owners in two ways. First, the new
product will serve as an individual stack vent or replace circuit
and branch venting. Second, it is part of a fully tested firestop
system when used with ProSet’s fire rated sleeve couplings.
The device has been tested in
accordance with the ASTM E-814 fire standard for pipe penetrations
and in accordance with ASSE 1051 and NSF 14 plumbing requirements.
The Fire Rated Air Vent is made of a Hi-Temp, Fire Resistive PVC
resin. It was tested at Warnock Hersey fire testing laboratory and
passed both the U.S. Standard ASTM E-814 and Canadian Standard CAN/ULC
S115. The tests were conducted through poured and cored concrete
floors as well as a wood floor/ceiling assembly.
These tests results can be
found in the Intertek Testing Services (Warnock Hersey) 1999
Directory of Listed Products. See Design numbers PS/PH 120-08 for
poured or cored concrete and PS/PH 120-09 for fire rated wood
floor/ceiling assemblies.
The Fire Rated Air Vent can
serve as a venting terminal for an individual stack vent, branch vent
or in circuit venting of various fixtures. The air vent valves take
the place of the normal vent piping required to vent a plumbing
drainage system.
When a horizontal drainage
branch serving various fixtures connects to a stack having more than
four branch intervals above the said branch piping, a relief vent
must be added and directly connected to an outside air vent stack.
The maximum height of drainage piping that can be stack vented using
ProSet’s Air Admittance Valve is six branch intervals (or in
accordance with local plumbing code requirements).
This heavy duty PVC valve
will also hold 20 lbs. Hydrostatic test which means that it can be
installed along with the rough-in DWV plastic or metallic piping
with no extra labor for additional work required with other valves
on the finished hook-up.
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The ProSet Air Admittance Valve can
optionally be supplied with a special Flame Tech 25 flame and 50
smoke-rated resin for installation within return air plenums and
more importantly can be used in high-rise construction where
no-combustible pipe is required.
ProSet Systems, Inc. will provide engineering drawings laying out
recommended plumbing designs to provide a good piping, drainage and
vent system. The drawings can be submitted to the local code
authorities. The layout will eliminate all the normal branch vent
piping and will include proper firestop penetration devices for other plumbing
openings such as bathtubs, showers, closets and drain stacks |
