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®
Zurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA U.S.A. 93446 � Ph. 855-663-9876, Fax 805-238-5766
In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 � Ph. 905-405-8272, Fax 905-405-1292
www.zurn.com
Rev. BDate: 12/13Document No. BF-375VSR (PRESET)Patent No. 6,513,543, 7,784,483, & 7,905,250Product No. Model 375VSR
Model 375VSR PRE-SET SERIES
Pre-Plumbed Back! ow Station
Page 1 of 7
MODEL 375VSR
Application
Assembly includes a Model 375 reduced pressure principle
backflow preventer with a Model SXL strainer on the inlet
and a Model NR3 pressure reducing valve on the outlet.
The Pre-Set assembly is available in 1/2" - 2" sizes.
Standards Compliance 375 (3/4" - 2")• ASSE® Listed 1013
• IAPMO® Listed
• CSA® B64.4
• AWWA compliant C511
• �Approved by the Foundation for Cross Connection
Control and Hydraulic Research at the University of
Southern California
Standards Compliance NR3 • ASSE® Listed 1003
• IAPMO® Listed
• CSA® Certified
FeaturesSizes: � 1/2", 3/4", 1", 1-1/4", 1-1/2", 2"
Maximum working water pressure 175 PSI
Maximum working water temperature 180°F
Hydrostatic test pressure 350 PSI
End connections Threaded FNPT ANSI B1.20.1
For more details on each component refer to the
following:
Model Pages
375 2 & 3
NR3 4 & 5
SXL 6 & 7
� � �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ! � " �� # $ � � � # $ � � � # $ � � � # $ � � � # $ � � � # $ � � � # $ � � % & ' $ ( )* + , , - * - . + / , . 0 * * 1 + * 0 2 3 * 1 + / 2 * , * 1 + * 0 . 1 . * + 2 * / 4 * , 4 + / 4 * 0 4 . 0 3 2 $ ,4 + 2 , - * * , . 3 * * 1 + * 0 2 3 * 1 + / 2 * , * 1 + * 0 . 1 . 3 + * 0 * 3 , * , 4 + 2 4 , 1 4 . 0 * - 2 $ 1* , 1 * 4 4 + 2 4 2 3 , * + 2 1 . , * + 2 1 . 4 . + * 0 / . / * + / , - 0 * 1 4 + 2 2 - * 2 * - , * 1 0 $ .* 5 * + 2 4 , * / 2 1 . 4 4 + / / 0 4 4 + / / 0 4 4 + 2 3 1 3 1 + / , 2 2 , - * + , 1 , - 4 4 + 2 3 1 , 3 * 4 $ ** 5 * + , 2 - * / 4 + 2 2 . 0 4 4 + / / 0 4 4 + / / 0 4 4 + 2 3 1 * - 4 + 2 , . 2 , * 1 + / 1 1 - 2 * + , * * 2 4 * * 2, 1 - , - 4 + 2 1 , . 4 4 + / / 0 4 4 + / / 0 4 4 + 2 3 1 * , 1 + * 0 4 * 4 , 2 * + / 0 * , 2 4 + 2 * , * 4 / * . $ 2Dimensions & Weights (do not include pkg.)
F
A
E E
D
G
C
B
a company
®
®
Zurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA U.S.A. 93446 � Ph. 855-663-9876, Fax 805-238-5766
In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 � Ph. 905-405-8272, Fax 905-405-1292
www.zurn.com
Rev. CDate: 12/13Document No. BF-375(SM)Patent No. 6,513,543, 7,784,483, & 7,905,250Product No. Model 375(SM)
Model 375
Reduced Pressure Principle Assembly
Page 2 of 7
Options(Suffixes can be combined)
c - with full port QT ball valves (standard)
c L - less ball valves, male pipe thread
c S - with bronze "Y" type strainer
c SH - with stainless steel handles
c SE - with street elbows
c FT - with integral male 45° flare SAE test fitting
c AG - with air gap
c SAG - with bronze "Y" strainer and air gap
c BOF - with Blow out/Flush fitting
c B - with black fusion epoxy coated ball valves &
struts for theft protection
Accessoriesc Repair kits
c Thermal expansion tank (Mdl. XT)
c Soft seated check valve (Mdl. 40XL2)
c �Shock arrester (Model 1250XL)
c QT-SET Quick Test Fitting Set
c Blow out / Flush fitting (RK34-375BOF (1/2" or 3/4"),
RK1-375BOF or RK114-350-375BOF)
ApplicationDesigned for installation on water lines to protect against both
backsiphonage and backpressure of contaminated water into
the potable water supply. Assembly shall provide protection
where a potential health hazard exists.
Standards Compliance • ASSE® Listed 1013
• IAPMO® Listed
• CSA® B64.4
• AWWA compliant C511
• �Approved by the Foundation for Cross Connection
Control and Hydraulic Research at the University of
Southern California
• UL® Classified (less shut-off valves only, 3/4" - 2")
• �C-UL® Classified (less shut-off valves only, 3/4" - 2")
MaterialsHousing Reinforced Nylon, FDA approved
Fasteners Stainless Steel, 300 Series
Elastomers Silicone (FDA Approved)
Buna Nitrile (FDA Approved)
Internals Delrin, Nylon, NSF Listed
Springs Stainless steel, 300 series
Ball Valves Cast Bronze, ASTM B 584
Struts Forged Brass, ASTM B 124
FeaturesSizes: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2"
Maximum working water pressure 175 PSI
Maximum working water temperature 180°F
Hydrostatic test pressure 350 PSI
End connections Threaded FNPT ANSI B1.20.1
� � � � �� � �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � ! !" � � �# ! " "$ ! " $ � � # % � � & � � ' " � � �# ! " "$ ! " $ � � � � �# ! " "$ ! " $ � �� ( ) � � � ( ) � � � ( ) � � � ( ) � � � ( ) � � � ( ) � � � ( ) � � � ( ) � � � ( ) � � � ( ) � � � ( ) � � * + , ) - . * + , ) - ./ 0 1 1 2 3 4 0 3 1 1 5 ( 0 � ( 0 � / / 5 0 / 6 7 8 / 5 0 3 7 / 1 / 5 0 / 6 4 5 9 4 0 3 8 3 / 1 / 0 7 9 / / 9 4 6 / 2 4 0 3 1 4 6 / 1 / 0 7 9 / / 7 ) 4 1 ) / 5 ) 4 1 ) 69 0 7 1 2 3 4 0 3 1 1 5 4 / 0 3 / 3 / / / 5 0 / 6 7 8 / 5 0 3 7 / 1 / 5 0 / 6 4 5 9 4 0 3 8 3 / 1 5 0 3 9 1 / 9 4 6 / / 1 4 8 / 1 / 0 7 9 / / 7 ) 4 1 ) / 5 ) 4 1 ) 6/ 1 5 / / 9 0 / 6 1 3 7 3 4 0 3 1 1 5 1 / 0 7 5 4 1 / 0 7 5 4 9 4 0 / 6 3 4 7 / 2 1 / 7 8 0 / 6 9 4 2 7 / 2 1 / 9 9 0 7 9 7 8 / 5 / 0 7 9 3 4 3 ) 1 9 ) 4 8 ) 4 7 ) 7/ : / 0 7 9 1 / 7 4 0 3 9 4 3 / 7 9 0 3 9 6 4 9 9 0 3 3 6 9 9 0 3 3 6 9 9 0 7 8 5 5 9 0 7 / 7 6 1 2 / 0 1 5 1 / 9 9 0 7 8 5 / 3 7 5 4 / 3 / 0 1 7 4 2 / 3 ) 4 3 ) 5 1 2 ) 5 8 ) 9/ : / 0 1 7 2 / 5 / 0 7 9 3 4 / 7 9 0 3 9 6 4 9 9 0 3 3 6 9 9 0 3 3 6 9 9 0 7 8 5 5 9 0 7 / 7 6 1 1 5 5 8 7 / 0 1 / / 7 / 3 9 0 7 7 4 6 1 2 / 0 7 5 / 7 / 3 ) 9 3 ) 2 1 / ) 5 8 ) 31 5 2 / 6 7 2 6 / 7 9 0 3 9 6 4 9 9 0 3 3 6 9 9 0 3 3 6 9 9 0 7 8 5 5 9 0 7 / 7 6 1 7 6 / 2 7 9 0 7 / 1 2 ) 4 1 2 9 0 7 5 1 4 1 2 9 0 7 5 1 4 / 8 ) 7 3 ) 3 1 9 ) 5 / 2 ) 4
C B
D
E
AFF
AB
G
D
E
C
G( 1/2” - 1” ) ( 1-1/4” - 2” )
OPTIONAL STRAINER (MODEL SXL)
JG
HH
J
Dimensions & Weights (do not include pkg.)
MODELS 375SE
; < = > ? @ A B C D > E = < F A G E H > ? F I < J J K B L < A < M > N O G > E PFlow Characteristics
Zurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA U.S.A. 93446 � Ph. 855-663-9876, Fax 805-238-5766
In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 � Ph. 905-405-8272, Fax 905-405-1292
www.zurn.com Page 3 of 7
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Typical InstallationLocal codes shall govern installation requirements. To be
installed in accordance with the manufacturers’ instructions
and the latest edition of the Uniform Plumbing Code. Un-
less otherwise specified, the assembly shall be mounted at
a minimum of 12” (305mm) and a maximum of 30” (762mm)
above adequate drains with sufficient side clearance for
testing and maintenance. The installation shall be made
so that no part of the unit can be submerged.
OUTDOOR INSTALLATIONINDOOR INSTALLATION
Speci! cationsThe Reduced Pressure Principle Backflow Preventer shall be ASSE® Listed 1013, rated to 180°F and supplied with
full port ball valves. The main body shall be Nylon and the seat disc elastomers shall be silicone. If installed indoors,
the installation shall be supplied with an air gap adapter. The Reduced Pressure Principle Backflow Preventer shall be
a ZURN WILKINS Model 375.
INLET SHUT OFF
DIRECTION OF FLOW
30" MAX.12" MIN.
PROTECTIVE
ENCLOSURE
AIR GAPOPTIONAL
WATER METER
175 PSIG 180ß F
3/4" 375 RP
ZURN WILKINS
FLOOR
DRAIN
MODEL 375SAG
(SHOWN)
OPTIONAL STRAINER
(MODEL SXL)
W
ILKIN
S
¯ ° ± ° ² ³ ´ µ ´ ¶ · ¸ ¹ ² ¶ º » ¸ ¼ º ½ ¾ ¿ ³ ± º¿ ³ ± º À ³ Á º  à ´ Ä À º ² Å Æ Â Ã ´ Ä À º ² Ç ¾ à ´ Ä À º ² Ç Â Ã ´ Ä À º ²È Ä É Ê È ½ Ë ÌÇ Ä Í Ê Â Å Ì Ç ½È Ä ½ Ê É Ç Í Ç Å Í ÂÇ Ê Ç È Í ¾ Í Å ½ ¾Ç Ç Ä ½ Ê Í È È Â ½ Å Å ¾Ç Ç Ä Í Ê È Í ½ É Ë È Ì ÂÍ Ê Â Í Å É Ç ¾ Â Ç Ë Å30" MAX.
12" MIN.
FLOOR DRAIN
175 PSIG 180° F
ZURN / WILKINS
375 RPB64.4
1013
DIRECTION OF FLOW
2
(1/2” - 1”) 5 1/2
(1-1/4” - 2”) 8 1/8
(1/2” - 1”) 2” PIPE
(1-1/4” - 2”) 3” PIPE
(DRAIN LINE CAN
BE ANY STANDARD
PIPING MATERIAL)
Î Ï Ð Ñ Ò Ó Ó ÔÕ Ö Õ × Ø Ï Ð Ù Î Ó Ó Ô Õ Ö Õ × Î Ï Ð Ø Ò Ó Ó ÔÕ × Î Ï Ð Õ Ñ Ó Ó Ô Õ Ï Ð Î Ñ Ó Ó ÔÙ × Ø Ï Ð Î Ò Ó Ó Ô
Zurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA U.S.A. 93446 � Ph. 855-663-9876, Fax 805-238-5766
In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 � Ph. 905-405-8272, Fax 905-405-1292
www.zurn.com
Rev. ADate: 4/13Document No. REG-NR3Product No. Model NR3
Model NR3Water Pressure Reducing Valve with Integral By-pass Check Valve and Strainer
Page 4 of 7
ApplicationDesigned for installation on water lines to reduce high inlet
pressure to a lower outlet pressure. The integral strainer
makes this device most suitable for residential and commer-
cial water systems that require frequent cleaning of sedi-
ment and debris. The direct acting integral by-pass design
prevents buildup of excessive system pressure caused by
thermal expansion. The balance piston design enables the
regulator to react in a smooth and responsive manner to
changes in system flow demand, while at the same time,
providing protection from inlet pressure changes.
Standards Compliance• �ASSE® Listed 1003
• IAPMO® Listed
• CSA® Certified
MaterialsMain valve body Cast bronze ASTM B 584
Bell housing UV resistant polymer composite
Internals Stainless steel, 300 Series
Stem Brass ASTM B 16
Elastomers EPDM (FDA approved)
Buna nitrile (FDA approved)
Cartridge Delrin™ (NSF Listed)
Springs Oil temp wire, ASTM A 229
Strainer screen 300 Series Stainless Steel
FeaturesSizes: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2"
Max. working water pressure (1/2” - 1-1/4”) 400 psi
Max. working water pressure (1-1/2” - 2”) 300 psi
Minimum inlet pressure = 80 psi as per UPC Code
Max. working water temperature 140°F
Reduced pressure range (1/2” - 1-1/4”) 15 to 75 psi
Reduced pressure range (1-1/2” - 2”) 25 to 75 psi
Factory preset 50 psi
Threaded connections (FNPT) ANSI B1.20.1
Copper connections (FC) ANSI B16.22
CPVC tailpiece: Max.hot water temp. 140°F @ 100 psi
Cold water rated temp. 73.4°F @ 400 psi
Dimensions & Weights (do not include pkg.)
A
B
D
C
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� � � �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ! " # ! $ � � � � % � & � � � � ' ( " ) ! ! ! * ! " ' ! $ + ! ! " ) # + # ! " # * ' ( ! � $! " # ! $ % � � � & � � � � ( ! " # ) + * ! " ' ! $ + ! ! " ) # + # ! " # * ' ( ! � $! " # ! $ � � & � % � & � � � � $ ! " ' ! ( ( * ! " ' ! $ + ! ! " ) # + # ! " # * ' ( ! � $( " ' # , � � � � % � & � � � � ' - " ! * ! ! ( * ! " ' ! $ + ! ! " ) # + # ! " # * ' ( ! � $( " ' # , % � � � & � � � � ( ! " # ) + * ! " ' ! $ + ! ! " ) # + # ! " # * ' ( ! � $( " ' # , � � & � % � & � � � � $ ( " ) ! ( - * ! " ' ! $ + ! ! " ) # + # ! " # * ' ( ! � $( " ' # , � � & � % � � % � � � � . ( $ " ) + # * ! " ' ! $ + ! ! " ) # + # ! " # * ' # ! � $! # $ � � � � % � & � � � � ' ! $ " ! * ! # $ * ! " ' ! $ + ! ! " ) # + # ! " # * ' ' #! # $ % � � � & � � � � ' ! , # * ! " ' ! $ + ! ! " ) # + # ! " # * ' ( � $ ! � *! # $ � � & � % � & � � � � $ ! $ " ! * ! $ ! * ! " ' ! $ + ! ! " ) # + # ! " # * ' ' $ # � !! # $ � � & � % � � % � � � � . ' ! , # - ( " ' ! + - ! ( ! * ( , ( - * ' # � ,! ! " ' ( # � � � � % � & � � � � * ( " ! * ! $ - - ( " ' ! + - ! ( " ! * ( , ( - * $ � $ # � $! ! " ' ( # % � � � & � � � � $ ! # - - ( " ' ! + - ! ( " ! * ( , ( - * $ # � (! ! " ' ( # � � & � % � & � � � � - ( " ) ! ) - - ( " ' ! + - ! ( " ! * ( , ( - * * # � -! ! " # ' , � � � � % � & � � � � * $ " ! * ! * , ) ! " # # ! * ! ( " ' ' $ ( ( " ' + $ * � * (! ! " # ' , % � � � & � � � � $ ! # - ) ! " # # ! * ! ( " ' ' $ ( ( " ' + $ $ � $ # � $! ! " # ' , � � & � % � & � � � � - ! " # ! + ! ) ! " # # ! * ! ( " ' ' $ ( ( " ' + $ - � - ( � $# $ , � � � � % � & � � � � * ! " ' ! $ + ) ! " # # ! * # $ ! ( ( " ' + $ ) � ! ( � -# $ , % � � � & � � � � $ ! # - ) ! " # # ! * # $ ! ( ( " ' + $ * � - (# $ , � � & � % � & � � � � - ! " # ! + ! ) ! " # # ! * # $ ! ( ( " ' + $ + � $ ' � (
Options (Suffixes can be combined)
�c - standard with single union FNPT connection and 20 mesh strainer screen
�c C - with FC (copper sweat) union connection
�c DU - with double union connection (FNPT)
�c DM - with double male 3/4" & 1" meter threads connection
�c DMSS - DM with SS spring & sealed cage
�c G - tapped with gauge
�c LU - with integral FNPT connection (no union)
�c PEX - with male barbed connection tailpiece for crossed-linked polyethylene tubing
�c SC - with ss adjustment bolt and lock nut, with ss spring for below-ground installations
�c P - tapped and plugged for gauge
�c CPVC - CPVC tailpiece connection (1”)
�c HRSC - High Range 15-150 psi (1/2"-1-1/4" only) with sealed cage
Accessoriesc Repair kit
c 1" BR4DUSPC Special plastic spacer nipple
c 1-1/4" BR4DUSPC Steel pipe
c 1-1/2" NR3DUSPC Steel pipe
c 2" NR3DUSPC Steel pipe
c TPK Tailpiece kit
Flow Characteristics
Zurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA U.S.A. 93446 � Ph. 855-663-9876, Fax 805-238-5766
In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 � Ph. 905-405-8272, Fax 905-405-1292
www.zurn.com Page 5 of 7
/ 0 1 2 3 4 5 6 7 8 9 : ; 6 8 < : = 7 : > ? @ A 4 1 A 5 1 = / 2 @ 5 B C DEFG EG FH E
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|}~���}~������ ���
MODEL 975XL
BACKFLOW
PREVENTER
WATER
METER
HOSE BIBB
MODEL NR3
REGULATOR
SHUT-OFFMODEL WXTP
EXPANSION
TANK
WATER
HEATER
MODEL TP1100A
T & P VALVE
DIRECTION OF FLOW
MODEL BFP-8
HOSE BIBB VACUUM
BREAKER
MODEL YB
STRAINER
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ¡¢ ¢ ¡£
¢ £ ¤ ¥ ¡ ¦ § ¨ © ¢ ª « ¬ ® ¯ ° ± ² ³ ´ µ ¶ ·¹̧º»»¼¹º½¾»»¿̧»ÀÁÂ
ÃÄ ÅÆ ÇÈ Ã ÄÈ Ä ÉÃ Ê Ã Ã Ê Æ È Ê Ä È Ê Ç Ë Ê Ì Ä Ê Ë Ä Ê É Å Ê Å Ì Ê Ã Ì Ê Í Æ Ê ÄÎ Ï Ð Ñ Ò Ó Ô Õ Ö × Ø Ù Ú ÛÜÝÞßßàÝÞáâßßãä åæç
Typical InstallationLocal codes shall govern installation requirements. Un-
less otherwise specified, the assembly shall be mounted in
accordance with the latest edition of the Uniform Plumbing
Code. The Model NR3 may be installed in any position. If
installed in a pit, vault, or indoors, specify the “SC” sealed
cage option. The assembly shall be installed with sufficient
side clearance for testing and maintenance. Multiple instal-
lations are recommended for wide demand variations or
where the desired pressure reduction is more than 4 to 1 (ie:
200 psi inlet reduced to 50 psi outlet). Caution: Anytime a
reducing valve is adjusted, a pressure gauge must be used
downstream to verify correct pressure setting. Do not bottom
adjustment bolt on bell housing.
Speci! cationsThe Water Pressure Reducing Valve shall be ASSE® Listed 1003, and available with single union, double union and less union
end connections. The main body shall be cast bronze (ASTM B 584) alloy. The bell shall be composite plastic. The cartridge shall
be acetal and incorporate an integral seat. The seat disc elastomer shall be EPDM. The assembly shall be accessible for mainte-
nance without removing the device from the line. The Water Pressure Reducing Valve shall be a ZURN WILKINS Model NR3.
Outdoor Installation
Typical InstallationNR3 Pex Installation
DIRECTION OF FLOW
WATER
METER
SHUT-OFF
VALVE
MODEL
NR3G
HOSE BIBB
TAILPIECE
UNION NUT
TYP. STUD BAY OR
EXPOSED WALL
CRIMP RING
DIRECTION OF FLOW
SUPPORT
UNION
GASKET
è é ê ë ì í í îï ð ï ñ ò ó ô õ ö ÷ ÷ øï ð ï ñ õ ó ô ù ò ÷ ÷ øï ñ ò ó ô ï ú ÷ ÷ ø ù ñ õ ó ô ò ö ÷ ÷ ø ï ó ô ò ú ÷ ÷ ø
"Flow curves are based on a
50 psi pressure differential"
Zurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA U.S.A. 93446 � Ph. 855-663-9876, Fax 805-238-5766
In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 � Ph. 905-405-8272, Fax 905-405-1292
www.zurn.com
Rev. ADate: 5/13Document No. STR-SXLProduct No. Model SXL
Model SXL
Cast Bronze "Y" Type Strainer
Page 6 of 7
ApplicationIdeal for use where Lead-Free* fittings are required.
Recommended for a variety of water service lines in-
cluding residential and commercial irrigation, swimming
pools and cooling tower water. They are also designed
to protect delicate equipment such as regulators and
backflow preventers by filtering sediment which could
cause premature failure.
Standards Compliance• NSF® Listed - Standard 61, Annex G*
• Certified to NSF/ANSI 372* by IAPMO R&T
*(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
MaterialsMain valve body Low Lead Cast Bronze ASTM B 584
Access covers Low Lead Bronze ASTM B 584
Screens 20 Mesh Stainless Steel, 300 Series
Features
Sizes: 1/2", 3/4", 1", 1 1/4, 1 1/2", 2"
2 1/2", 3"
Temperature/pressure rating 180°F
300 psi WOG
Threaded connections (FNPT) ANSI B1.20.1
(Supplied with brass closure plug)
Dimensions & Weights (do not include pkg.)� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � � � � � ! � " #$ % & $ ' ( $ % ) * ( ( + , ( % * � $ - � '( % ) & - ( + % * . * ( $ % & * . ( % * � $ $ % ) - � ,$ & ' ) $ % & $ $ ) ) $ - & $ % & � $ ( % ) - � *$ $ % ) ( & ' ' % $ , $ ( ' ) ( % ) $ & $ $ % & � & ( % ) $ � &$ $ % & ) - , ' % $ , $ , - ' $ & + $ % & � ( $ % & $ � ,& ' - + $ % & $ . $ , $ ' & $ % & � , & � +& $ % & , ' . & & . + $ % & $ . $ $ % & � . $ % ) ) � &( * - $ - & ' ) * $ % & & $ , $ % & � $ ) , � )� � � � � � � � � � � � � / � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � � � � � ! � " #( % ) & - ( $ ' % $ , $ - - ( ' % $ , * ) ( % * � $ - � '$ & ' ' $ & + ( $ ' % $ , $ - - $ % & � $ � ' - � +
A
B
C
WIL
KIN
S
XL
Optionsc C - with copper sweat connections (3/4" & 1")
Flow Characteristics
Zurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA U.S.A. 93446 � Ph. 855-663-9876, Fax 805-238-5766
In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 � Ph. 905-405-8272, Fax 905-405-1292
www.zurn.com Page 7 of 7
PR
ES
SU
RE
LO
SS
(P
SIG
)
0
5
10
FLOW RATES (l/s)
MODEL SXL 1 1/2" thru 3" (STANDARD & METRIC)
0 100 200 300 400 500
6.3 12.6 18.9 25.2 31.569
PR
ES
SU
RE
LO
SS
(kpa)
35
FLOW RATES (GPM)
1 1/2" (40mm) 2" (50mm) 3" (80mm)
PR
ES
SU
RE
LO
SS
(P
SIG
)
0
5
10
FLOW RATES (l/s)
MODEL SXL 1/2" thru 1 1/4" (STANDARD & METRIC)
0 30 60 90 120 150
1.89 3.79 5.68 7.57 9.4669
PR
ES
SU
RE
LO
SS
(kpa)
35
FLOW RATES (GPM)
1/2" (15mm) 1" (25mm) 1 1/4" (32mm)3/4" (20mm)
2 1/2" (65mm)
Typical InstallationLocal codes shall govern installation requirements. Un-
less otherwise specified, the assembly shall be mounted
in accordance with the latest edition of the Uniform
Plumbing Code. If installed below grade, be certain
adequate drainage is provided to prevent the device
from being submerged. Horizontal installation with the
strainer cap facing downward is the preferred installation
orientation; however the strainer will provide protection
in any orientation.
OUTDOOR INSTALLATION OUTDOOR INSTALLATION
Speci! cationsThe “Y” type strainer shall be a manufactured import certified to NSF/ANSI 372. The main body and cover shall be low lead
cast bronze (ASTM B 584), the strainer screen shall be 20 mesh 300 series stainless steel and accessible for maintenance
without removing the device from the line. The “Y” type strainer shall be a ZURN WILKINS Model SXL.
0 1 2 1 3 4 5 6 5 7 8 9 : 3 7 ; < 9 = ; > ? @ 4 2 ;@ 4 2 ; A 4 B ; C D 5 E A ; 3 F G C D 5 E A ; 3 H ? D 5 E A ; 3 H C D 5 E A ; 3H E I J H H K LH E > J K K L CL E I J L > M NH E K J C F N H >L E > J I H K H F K CH J H L K ? K F > ?H H E > J K L L C > F F ?H H E K L K > I M L N CK J C K F I H ? C H M FPROTECTIVE
ENCLOSURE
DIRECTION OF FLOW
12" MIN
30" MAX
MODEL 975XL2 REDUCED
PRESSURE BACKFLOW PREVENTER
WIL
KIN
S
XL
975XL2
WIL
KIN
S
ZURN
DIRECTION OF FLOW
12" MIN.
30" MAX.
PROTECTIVE
ENCLOSURE
MODEL 500XL WATER
PRESSURE REDUCING VALVE
WIL
KIN
S
XL
500XL
I
KI
N
S
W
L