Model 375XL Reduced Pressure Principle Assembly Application Ideal for use where Lead-Free* valves are required. Designed for installation on potable 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® Certified 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") • Certified to NSF/ANSI 372* by IAPMO R&T • NSF® Listed-Standard 61, Annex G*
Options (Suffixes can be combined) c - with full port QT ball valves (standard) c L - less ball valves, male pipe thread c S - with Model SXL lead-free bronze "Y" type strainer c SH - with stainless steel handles c FT - with integral male 45° flare SAE test fitting c AG - with air gap c SAG - with Model SXL lead-free 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
*(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
Materials Housing Fasteners Elastomers
Reinforced Nylon, FDA approved Stainless Steel, 300 Series Silicone (FDA Approved) Buna Nitrile (FDA Approved) Delrin, Nylon, NSF Listed Stainless Steel, 300 series Cast Bronze, ASTM B 584 Forged Brass, ASTM B 124
Internals Springs Ball Valves Struts
Accessories c 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 Test Cock Lock (Model TCL24) c Blow out / Flush fitting (RK34-375BOF (1/2" or 3/4"), RK1-375BOF or RK114-350-375BOF)
Features Sizes: 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
OPTIONAL LEAD-FREE STRAINER (MODEL SXL)
D S KIN IL L W X
S KIN IL L W X
A F (1/2” - 1” )
G
Dimensions & Weights (do not include pkg.)
175 PSIG 180˚ F
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375 RP
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3/4" 375 RP 175 PSIG 180ß F
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Zurn Industries, LLC | Wilkins 1747 Commerce Way, Paso Robles, CA U.S.A. 93446 Ph. 855-663-9876, Fax 805-238-5766 In Canada | Zurn Industries Limited 3544 Nashua Drive, Mississauga, Ontario L4V 1L2 Ph. 905-405-8272, Fax 905-405-1292 www.zurn.com
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Rev. B Date: 4/13 Document No. BF-375XL Patent No. 6, 513, 543, 7,784,483, & 7,905,250 Product No. Model 375XL
5
Page 1 of 2
Flow Characteristics
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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. Unless 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.
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MODEL 375XLSAG (SHOWN) B64.4
/ WILKINS
175 PSIG 180° F
(1-1/4” - 2”) 8 1/8 (1/2” - 1”) 5 1/2
OPTIONAL LEAD-FREE STRAINER MODEL SXL
OPTIONAL WATER METER
(1-1/4” - 2”) 3” PIPE (1/2” - 1”) 2” PIPE (DRAIN LINE CAN BE ANY STANDARD PIPING MATERIAL)
3/4" 375 RP ZURN
S KIN IL XL
PROTECTIVE ENCLOSURE
375 RP
ZURN 1013
W
2
WILKINS
175 PSIG 180ß F
AIR GAP
12" MIN. 30" MAX.
12" MIN. 30" MAX.
FLOOR DRAIN INLET SHUT OFF
DIRECTION OF FLOW FLOOR DRAIN
INDOOR INSTALLATION
DIRECTION OF FLOW
OUTDOOR INSTALLATION
Specifications
The Reduced Pressure Principle Backflow Preventer shall be ANSI 3rd party certified to comply with states' lead plumbing law 0.25% maximum weighted average lead content requirement, 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 375XL.
Zurn Industries, LLC | Wilkins 1747 Commerce Way, Paso Robles, CA U.S.A. 93446 Ph. 855-663-9876, Fax 805-238-5766 In Canada | Zurn Industries Limited 3544 Nashua Drive, Mississauga, Ontario L4V 1L2 Ph. 905-405-8272, Fax 905-405-1292 www.zurn.com
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