Installation Guide

Page 1 of 1
Rev. F
Date: 12/19
Document No. BF-AG
Product No. Model AG
Model AG
Air Gap Adaptor Fitting
Zurn Industries, LLC | Wilkins
1747 Commerce Way, Paso Robles, CA U.S.A. 93446 Ph. 855-663-9876, Fax [phone]
In Canada | Zurn Industries Limited
7900 Goreway Drive, Unit 10, Brampton, Ontario L6T 5W6, 877-892-5216
www.zurn.com
C
A
B
AG-4 THRU AG-8
AG-9 & AG-10
B
AG-11 & AG-12
C
A
B
A
C
DIRECTION OF FLOW
DRAIN
AIR
GAP
Application
Designed for use with ZURN WILKINS Reduced Pressure
Principle Backflow Preventers on horizontal or vertical
installations. Device is necessary when installing a drain
line and can be mounted to the body. (Drain line can be any
standard piping material.)
Approvals
ANSI/ASME A 112.1.2
Materials
Body Cast grey iron, epoxy painted
Body (AG-11, 12) Nylon
Elbow Cast grey iron, epoxy painted
Bolts Steel, zinc plated
Dimensions & Weights (do not include pkg.)
* Model:
375, 375A, 375ADA, 375ADAR, 375AMS,
375AR, 375AST, 375ASTDA, 375ASTDAR,
375ASTDAST, 375ASTMS, 375ASTR, 375DA,
375MS, 375ST, 375XL, 475, 475DA, 475DAV,
475MS, 475VMS, 975XL, 975XL2, 475ST,
475STV, 475STDA, 475STDAV
Typical Installation
Local codes shall govern installation requirements. To be
installed in accordance with the manufacturers' instructions
and the latest edition of the Uniform Plumbing Code.
AG-4 thru AG-8 AG-9 & AG-10
Indoor Installation
AG-11 & AG-12
MODEL
DIMENSIONS (approximate)
WEIGHT
SIZES
FOR MODEL*
SERIES
A B
C
OUTLET PIPE
SIZE
in. mm in. mm
lbs. kg
AG-8 1/4" - 1/2" 975XL, 975XL2 2 1/2 64 3 1/2 89 1" NPT 2 0.9
AG-4 3/4"-1" 975XL, 975XL2 3 1/4 83 5 127 1" NPT 2 0.9
AG-5 1 1/4" - 2" 975XL, 975XL2 4 1/2 114 8 203 2" NPT 3 1.4
AG-6 2 1/2" - 3" 475V 5 3/8 137 10 254 3" NPT 5 2.3
AG-6 2 1/2" - 6" 375, 475 5 3/8 137 10 254 3" NPT 5 2.3
AG-7 8" - 10" 375, 475 7 178 11 279 4" NPT 8 3.6
AG-9 4" - 6" 475V 5 3/8 137 14 1/2 368 3" NPT 9 4
AG-10 8" - 10" 475V 7 178 16 1/2 413 4" NPT 11 5
AG-11 1/2" - 1" 375, 375XL 3 3/4 95 5 1/2 140 2" IPS Slip 1 0.5
AG-12 1 1/4" - 2" 375, 375XL 6 1/2 165 8 200 3" IPS Slip 1 0.5
AG-13 4" - 6" 475ST, 475STV 5 3/8 137 14 1/2 368 3" NPT 9 4
AG-14 8" - 10" 475ST, 475STV 7 178 16 1/2 413 4" NPT 11 5
Sizes: 1/4" - 1/2", 3/4" - 1", 1-1/4" - 2", 2-1/2" - 6", 8" - 10"
AG-13 & AG-14