Model 975XL - Backflow Parts & Repair Kits

1 Zurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA 93446 Ph. 855-663-9876, Fax 805-238-5766In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 Ph. 905-405-8272, Fax BDate: 12/13 Document No. BF- 975XL (SM) Product No. Model 975XL (SM) Model 975 XLReduced Pressure Principle AssemblyBack! ow Prevention AssemblyPage 1 of 2 Options(Suffixes can be combined)c - with full port QT ball valves (standard)c L - less ball valves, male pipe threadc S - with bronze "Y" type strainer (1/2 only)c TCU - with test cocks upc FT - with integral male 45 flare SAE test fittingAccessoriesc Air gap ( Model AG)c Repair kits (rubber only)c Thermal expansion tank (Mdl.)

2 XT)c Soft seated check valve ( Model 40XL)c Shock arrester ( Model 1250XL)c QT-SET Quick Test Fitting SetApplicationDesigned for installation on water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. The Model 975XL provides protec-tion where a potential health hazard exists. Standards Compliance ASSE Listed 1013 IAPMO Listed CSA Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California MaterialsMain valve body Cast bronze ASTM B 584 Access covers Cast bronze ASTM B 584 Internals Stainless steel, 300 SeriesElastomers Silicone (FDA approved) Buna nitrile (FDA approved)Polymers Noryl , NSF ListedSprings Stainless steel, 300 seriesFeaturesSizes.

3 1/4", 3/8", 1/2 Maximum working water pressure 175 psiMaximum working water temperature 180 FThreaded connections (FNPT) ANSI test pressure 350 PSI Relief Valve discharge port:1/4 - 1/2 - sq. !"# ! "#$%&'($%))&$*+%&$&,$$%)+')+%&-.)*$&$.) % % -+ ),) -+%'$.($%))&$*+%&$&,$$%)+')+%&-.)*$&$.) % % -+ ),) -$%)$*$.)*&*+%&$&,$$%)+')+%&-.)*$&$.)$+$ %)+&+-+ ),) -Dimensions & Weights (do not include pkg.) /0123456782910:5;9<23:=0>>?6@050A2BC;29 DFlow CharacteristicsZurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA 93446 Ph. 855-663-9876, Fax 805-238-5766In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 Ph.

4 905-405-8272, Fax 2 of 212" MIN. 30" OF FLOWAIR GAPDRAIN03 6912155101520 FLOW RATES (GPM)PRESSURE LOSS (PSIG) 69 PRESSURE LOSS (kpa) FLOW RATES (l/s) Model 975XL 1/4", 3/8" & 1/2" (STANDARD & METRIC)351/2" (15mm) " (9mm)1/4" (6mm)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. Unless otherwise specified, the assembly shall be mounted at a mini-mum of 12 (305mm) and a maximum of 30 (762mm) above adequate drains with sufficient side clearance for testing and maintenance.

5 The installation shall be made so that no part of the unit can be submerged or where relief valve discharge could cause ! 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 and access covers shall be low lead bronze (ASTM B 584), the seat ring and all internal polymers shall be NSF Listed Noryl and the seat disc elastomers shall be silicone. The checks shall be oriented at a 45 angle up-ward and accessible for maintenance without removing the relief valve or the entire device from the line.

6 If installed indoors, the installation shall be supplied with an air gap and Y type strainer. The Reduced Pressure Principle Backflow Preventer shall be a ZURN WILKINS Model INSTALLATIONEFGFHIJKJLMNOHLPQNRPSTUIGPUI GPVIWPXYJZVPH[\XYJZVPH]TYJZVPH]XYJZVPH]Z ^_]]`a]ZS_``aXaZ^_aSbc]Z`_X[c]SaZS_^]`][ `X]_]a`T`[ST]]ZS_`aaXS[[T]]Z`_a`S^bacX`_ X`[^]TX]b[Zurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA 93446 Ph. 855-663-9876, Fax 805-238-5766In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 Ph. 905-405-8272, Fax CDate: 6/14 Document No.

7 BF- 975XL Product No. Model 975 XLModel 975 XLReduced Pressure Principle AssemblyPage 1 of 2 ABGCDFEO ptions(Suffixes can be combined)c - with full port QT ball valves (standard)c L - less ball valves, male pipe threadc U - with union ball valvesc MS - with integral relief valve monitor switch c S - with bronze "Y" type strainer c BMS - with battery operated monitor switchc FDC - with fire hydrant connection; 2" onlyc FT - with integral male 45 flare SAE test fittingc TCU - with test cocks upc V - with union swivel elbows (3/4" & 1")c SE - with street elbows (3/4" & 1")Accessoriesc Air gap ( Model AG)c Repair kitsc Thermal expansion tank (Mdl.)

8 XT)c Soft seated check valve ( Model 40XL)c Shock arrester ( Model 1250XL)c QT-SET Quick Test Fitting Setc Ball valve handle locksApplicationDesigned 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 Compliance ASSE Listed 1013 IAPMO Listed UL Classified (less shut-off valves or with OS&Y valves C-UL Classified CSA Certified AWWA compliant C511 Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California NYC MEA 425-89-M VOL 3 MaterialsMain valve body Cast Bronze ASTM B 584 Access covers Cast Bronze ASTM B 584 Fasteners Stainless Steel, 300 SeriesElastomers Silicone (FDA Approved)

9 Buna Nitrile (FDA Approved)Polymers Noryl , NSF ListedSprings Stainless Steel, 300 seriesFeaturesSizes: 3/4", 1", 1-1/4", 1-1/2", 2"Maximum working water pressure 175 PSIM aximum working water temperature 180 FHydrostatic test pressure 350 PSIEnd connections Threaded ANSI Valve discharge port:3/4 - 1 - sq. 1/4 - 2 - sq. & Weights (do not include pkg.) !"#$$!"#$$!"#$$!"#$$!"#$$!"#$$!"#$$!"#$$ %&'#()*+, *.01*+,/21-/+30,*14*/+-320/-1/4/+3,/./-0 #0/-0/**.1*+,/21-/+30,*14*/+-320/-1/1*+3 ,,//,4#,//+,*-/1,*-/./0+/4-13-*+,1.

10 */+-320/-14*+,/1/--2+/401*-3/-#1//+-,./1 *+3,,//./0+/4-13-*+,1.*/+-320/-14*+,/1/- ,/+/44//-3/-# +-, +/4-13-*+,1.*/+-320/-14*+,/1/-4/+-41**,/ 0#, 56789:;<=>8?76@;A?B89@C6 DDE<F6;6G8 HIA8?JFlow CharacteristicsZurn Industries, LLC | Wilkins1747 Commerce Way, Paso Robles, CA 93446 Ph. 855-663-9876, Fax 805-238-5766In Canada | Zurn Industries Limited3544 Nashua Drive, Mississauga, Ontario L4V 1L2 Ph. 905-405-8272, Fax 2 of 2 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.