STF2007-0017 App letter rec'd 7-10-07.pdfTo: Edmonds Bldg. Dept.
Re: Use of Studor vent
For the Hadfield Residence
506 6th Ave. S.
Permit #2006 0619
Date: 7/8/07
This is a formal request for the use of 4 studor vents in this residence.
It is possible for the construction of this residence to use standard
venting in all plumbing fixtures except the following.
1. The main kitchen sink, and the vegetable sink in the kitchen Island
2. The wet bar sink in the upstairs family room
3/ The kitchen sink in the first floor living area.
It is not possible to maintain structural bearing integrity, or even reach
an area to get to a roof vent in these locations. The use of these vents in
this application is perfect for this situation. These vents are an
approved system by code standards, and are used widely in all other
jurisdictions that I have worked in. We have also tried a loop vent but
cannot get the correct angles for such an application.
If you need further information please ask, or if you would like to meet
onsite at your convenience, I can meet your schedule. Enclosed is the
spec. sheet for studor vents, and the coding approvals that it meets.
If you have any questions I can be reached at 425-879-2315. Also I can
arrange for you to converse with either the homeowner or the plumbing
contractor in this matter.
I appreciate your help in this matter,
Sincerely, �J
Z'10�4
Keith - KCL Enterprises
425-879-2315
Licensed General Contractor
Lic.# KLENT232 DC
RECEIVED
J U L 10 20-01
BUILDIN DEPT.
STUDOOMINI-VENT®
Click Image for Submittal Sheet
'"STUE
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IrA/EMTIv*—_ MCM
The unique design of the STUDORO MINI -VENTS provides plumbing vent
prevent the loss of water seals in traps without the need for costly roof pe
and vent piping.
• Can be used as an individual, branch, circuit or stack vent
• Fits 1 1/2" and 2" pipe sizes
• Will vent up to 160 DFUs on a branch
• Will vent up to 24 DFUs on stack
• Expands architectural design limits
• Reduces the number of fire -stopping applications
• Exclusive vermin protection system
• Limited lifetime warranty for replacement of defective valves
For general planning and istallation, we recommend the use of the information contain on tF
sheet for the Mini -Vent. The information is based on national standards, plumbing cod
Hunter curve. Please contact us for special applications.
h4://www.studor.com/mini-vent.htin 7/9/2007
f. STUDOK
lr,vEA/riv� rEcrvniocaGr�
Protective Cover
(a)
MINI-VyENTt'
278n�-�i
21a, (b)
I
.I4 10
Adaptor 1'W NPT
(C)
fits 1 % or 7 pipe sizes
Materials:
(a) Polystyrene
(b)ABS (acrylonitrile butadiene styrene)
valve with elastromeric membrane
(c) ABS or PVC Adaptor
Performance Standards:
Specificati®n Sheet i MIINI-VENT®
Manufacturer: Studor® Inc. Model: MINI -VENT'
Item #: 20301 (PVC Connector) Connection Size: 1%"-2"
20300 (ABS Connector)
General:
An air admittance valve shall be acceptable as a vent termination for any individual vent,
common vent, circuit vent, loop vent, island fixture vent, vent stack or stack vent that is
provided to prevent siphonage of a fixture trap. An air admittance valve can be used as
an alterrtafive to extending a vent through the roof (or sidewail) to the open atmosphere.
Location:
A. The MINI -VENT& should be located a minimum of 4" above the weir of the fixture trap
for single fixture and branch venting and 6" above the flood level of the highest
fixture for stack venting.
B. Each valve should be installed in an accessible location.
Installation:
A. The valve should be connected to the piping in accordance with the manufacturer's
installation instructions.
B. The valve should be installed in the vertical, upright position after rough4n and
pressure testing of the DWV system.
C. A minimum of one vent shall extend to the open atmosphere for every building
drainage system.
D. The valve should not be installed as a vent terminal for any special (chemical) waste
system or in supply and return air plenums.
E. The valve may be installed on sewer ejectors, if installed according to engineer design
and prior local code approval.
F. For installation in areas with temperature ranges between -40°F and +150°F.
Features:
A. Screening on the inside and outside of the valve to protect the sealing membrane from
insects and debris.
B. Protective cover for the air intake and additional insulation against extreme temperatures.
C. Ability to divert condensation away from the sealing membrane.
D. Lifetime Warranty.
• ASSE 1051 (revised 2002) single fixture and Branch type AAVs
•.ASSE 1050 (revised 2002) Stade Type AAVs
• NSF Standard 14 (Plastic Components)
Code Approvals:
•. International Plumbing Code (IPC) 2003 Edition
• Southern Building Code Council International (SBCCI) 1994 Edition
• Building Official Code Administration (BOCA) 1993 Edition
International Residential Code (IRC) 2003 Edition
Uniform Plumbing Code (UPC) Section 301.2 Alternative Materials and
Methods 2003 Edition
Listings;
• ASSE Seal of Approval
• National Evaluation Services (NES -592)
• NSF International (NSF Standard 14)
• NSF Intemational (ASSE Performance Standard 1051 and ASSE 1050)
• IAMPO Classified Marking, file No. C-3803
• Warnock Mersey (ITS - Intertek Testing Services)
Sizing Chart
Horizontal
Branch Size
Max DFUs
1'/z'
3
2„
6
3"
20
4 *
160
Stack Size
Max DFUs
1'/z"
8
2"
24
i
,
STUDOR
Inl/ENTive TECHAI01-OGY8
Protective Cover
(a)
MAXVVENT
I�---47/s'=H
5Y4" (b)
>� 3"—►I
(c)
4" push -fit connector
Materials:
(a) Styrofoam cover
(b) ABS (acrylonitrile butadiene styrene)
valve with elastromeric membrane
(c) Rubber connector
Specification Sheet I MAXINENT®
Manufacturer: Studor® Inc.
Item ##: 20302
General:
Model. MAXI-VENTO
Connection Size: 3" or 4"
An air admittance valve shall be acceptable as a vent termination for any individual vent,
common vent, circuit vent, loop vent, island fixture vent, vent stack or stack vent that is
provided to prevent siphonage of a fixture trap. An Air Admittance Valve can be used as
an alternative to extending a vent through the roof (or sidewali) to the open atmosphere.
Location:
A. The MAXI -VENT° should be located a minimum of 4" above the weir of the fixture trap
for single fixture and branch venting and 6" above the flood level of the highest fixture
for stack venting.
B_ Each valve should be installed in an accessible location.
Installation:
A. The valve should be connected to the piping in accordance with the manufacturer's
installation instructions.
B. The valve should be installed in the vertical, upright position after rough -in and
pressure testing of the DWV system.
C. A minimum of one vent shall extend to the open atmosphere for every building
drainage system.
D. The valve should not be installed as a vent terminal for any special(chemical) waste
system or in supply and return air plenums.
E. The valve may be installed on sewer ejectors, if installed according to engineer design
and prior local code approval.
F. For installation in areas with temperature ranges between -40'F and +150°F.
Features:
A. Screening on the inside and outside of the valve to protect the sealing membrane from
insects and debris.
B. Protective cover for the air intake and additional insulation against extreme temperatures_
C. Ability to divert condensation away from the sealing membrane.
D. Lifetime Warranty,
Performance Standards:
• ASSE 1051 A & B (revised 2002) single fixture and Branch type AAVs
• ASSE 1050 (revised 2002) Stack Type AAVs
• NSF Standard 14 (Plastic Components)
Code Approvals:
• International Plumbing Code (IPC) 2003 Edition
• Southern Building Code Council International (SBCCI) 1994 Edition
• Building Official Code Administration (BOCA) 1993 Edition
• International Residential Code (IRC) 2003 Edition
• Uniform Plumbing Code (UPC) Section 301.2 Alternative Materials and Methods 2003 Edition
Listings:
• ASSE Seal of Approval
• National Evaluation Services (NER-592)
• NSF International (NSF Standard 14)
• NSF International (ASSE Performance Standard 1051 and ASSE 1050)
• IAMPO Classified Marking, file No. G-3803
• Warnock Hersey (ITS - Intertek Testing Services)
Sizing Chart
Horizontal
Branch Size
Max DFUs
3"
20
4"
160
Stack Size
Max DFUs
St
72
4"
500