Warranty

For additional product information, please visit www.zurn.com.
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BACKFLOW
PREVENTERS
BACKFLOW PREVENTERS
ACCESSORIES STRAINERS
AUTOMATIC
CONTROL VALVES
PRESSURE
REDUCING VALVES
FIRE
PROTECTION VALVES
THERMOSTATIC
MIXING VALVES RELIEF VALVES
MISCELLANEOUS
PLUMBING PRODUCTS REPAIR KITS
SIZE
LEAD-FREE
PART NUMBER
LEAD-FREE
LIST PRICE EA.
350AST (GROOVED BODY): FLANGED NRS X FLANGED NRS
-” -AST 3,797.10
” -AST 3,997.70
” -AST 4,155.70
”
-AST
6,134.30
” -AST 11,148.90
” -AST 16,523.90
For grooved options part number will be designated using
“GF” “FG” or “G” (eg -ASTFG -ASTGF -
ASTG)
350ASTOSY (GROOVED BODY): FLANGED OSY X FLANGED
OSY
-” -ASTOSY 3,926.00
” -ASTOSY 4,118.10
” -ASTOSY 4,445.50
” -ASTOSY 6,739.40
” -ASTOSY 11,975.10
” -ASTOSY 16,830.80
For grooved options part number will be designated using
“GF” “FG” or “G” (eg -ASTOSYFG -ASTOSYGF
-ASTOSYG)
350ASTPI (GROOVED BODY): FLANGED PI X FLANGED PI
-” -ASTPI 3,926.00
” -ASTPI 4,118.10
” -ASTPI 4,445.50
” -ASTPI 6,739.40
” -ASTPI 11,975.10
” -ASTPI 16,830.80
For grooved options part number will be designated using
“GF” “FG” or “G” (eg -ASTPIFG -ASTPIGF
-ASTPIG)
350ASTBG (GROOVED BODY): GROOVED BG X GROOVED BG
(TAMPERED BUTTERFLY VALVES)
-” -ASTBG 4,062.00
” -ASTBG 4,342.30
” -ASTBG 4,894.70
” -ASTBG 7,419.80
” -ASTBG 13,184.50
” -ASTBG 17,801.40
350ASTBF (GROOVED BODY): FLANGED BF X FLANGED BF
(TAMPERED BUTTERFLY VALVES)
-” -ASTBF 4,181.30
” -ASTBF 4,539.50
” -ASTBF 5,151.40
” -ASTBF 7,747.60
” -ASTBF 13,528.50
” -ASTBF 18,168.30
350ASTBFG (GROOVED BODY): FLANGED BF X GROOVED
BG (TAMPERED BUTTERFLY VALVES)
-” -ASTBFG 4,121.70
” -ASTBFG 4,440.80
” -ASTBFG 5,023.00
” -ASTBFG 7,583.80
” -ASTBFG 13,356.40
” -ASTBFG 17,984.90
350ASTOSYPI (GROOVED BODY): OSY & PI GATE VALVES
-”-” Use OSY Pricing
For grooved options part number will be designated
using “GF” “FG” or “G” (eg -ASTPIOSYFG
-ASTOSYPIGF -ASTOSYPIG)
350ASTOSYBFG (GROOVED BODY): FLANGED OSY X
GROOVED BG (TAMPERED BUTTERFLY VALVE)
-” -ASTOSYBFG 3,994.00
” -ASTOSYBFG 4,230.10
” -ASTOSYBFG 4,669.90
” -ASTOSYBFG 7,079.50
” -ASTOSYBFG 12,579.90
” -ASTOSYBFG 17,315.90
350ASTPIBFG (GROOVED): FLANGED PI X GROOVED BG
(TAMPERED BUTTERFLY VALVE)
-” -ASTPIBFG 3,994.00
” -ASTPIBFG 4,230.10
” -ASTPIBFG 4,669.90
” -ASTPIBFG 7,079.50
” -ASTPIBFG 12,579.90
” -ASTPIBFG 17,315.90
For grooved options part number will be designated
using “GF” “FG” or “G” (eg -ASTOSYBFG
-ASTBOSYGF -ASTPIBG)
OPTIONS AND LIST PRICE ADDERS
(ADD OPTION TO LIST PRICE TO DETERMINE TOTAL LIST PRICE)
FSC STRAINER (FSC) OPTION WITH BOLT KIT, FLANGED X
FLANGED CONNECTION
SIZE
LEAD-FREE
LIST PRICE EA.
-” 390.60
” 474.70
” 773.90
” 1,244.80
” 2,471.80
” 4,283.40
Part number will be designated using “FSC” (eg
-ASTFSC -ASTOSYFSC -ASTOSYPIFSC)
300AR SERIES - REPLACEMENT BACKFLOW ASSEMBLY
(2-1/2” - 10”)
Custom length Double Check Valve Assembly for drop
in replacements Stainless steel grooved x grooved
spool installed between the backflow valve and the
outlet shut-o valve Can be used with  Series and
 Series grooved body models For replacement of
longer lay-length backflow preventers
ASTR list price adder to be added to list price of
the AST to determine total list price
See order form and product specification sheet on the
website for details and options
SIZE
INLET X OUTLET
CONNECTIONS / OPTIONS
LEAD-FREE
LIST PRICE
ADDER EA.
-” Length Range “A” Up to
-”
428.80
” Length Range “A” Up to
-”
445.60
” Length Range “A” Up
to ”
516.60
” Length Range “B” Up
to -”
596.90
” Length Range “A” Up
to ”
690.20
” Length Range “B” Up
to -”
803.30
” Length Range “A” Up
to ”
922.80
” Length Range “B” Up
to ”
1,072.70
” Length Range “A” Up
to ”
1,118.80
” Length Range “B” Up
to ”
1,319.80
” Length Range “C” Up to
-”
1,519.60
Part number will be designated using “ASTR-X” where
X  the Length Range (eg -ASTR-A -ASTR-B
-ASTR-C)
TYPICAL INSTALLATION
See previous page
APPLICATIONS
The 350AST combines the features you expect from
a Zurn Wilkins Double Check, in a corrosion resistant,
stainless steel body for any low health hazard
application in all market segments.
FEATURES
• 2-1/2” - 10” [grooved body]
• 175 psi max
• 140°F max
• Grooved or flanged end connections
• Improved Compound Check design
• Short lay-length for small space installation
• Lower maintenance costs from corrosion resistance
of stainless body
• Five year warranty on materials and workmanship
APPROVALS AND APPLICABLE
STANDARDS
• Approved by the Foundation for Cross Connection
Control and Hydraulic Research at the University of
Southern California
• ASSE® Listed 1015, AWWA Compliant C510 (with
gates only), and C550, UL® Classified, C-UL®
Classified, FM® Approved, CSA® Certified, IAPMO®
Listed
• Certified to NSF/ANSI 61 and 372
ACCESSORIES
• Repair kit (rubber only)
• Thermal expansion tank (Model XT)
• OS&Y Gate valve tamper switch (OSY-40)
• Model FSC wye strainer (non fire applications)
350AST SERIES – DOUBLE CHECK VALVE ASSEMBLY WITH STAINLESS STEEL BODY
SIZE
LEAD-FREE
PART NUMBER
LEAD-FREE
LIST PRICE EA.