Stainless Steel The Next Generation of Backflow

Stainless Steel The Next Generation of Backflow

Zurn Wilkins Stainless Steel Backflow Preventer Superior Quality, Technologically dvanced 3L grade stainless steel body available in grooved or flanged end shut-off valve configurations Shorter lay length can fit in any new or existing installation i 3 ouble Check ssembly 2-1/2" - 1" Low-hazard applications Horizontal or vertical installations SSE 11, WW C-1, FM, UL, CUL, CS B., USC New Check Reinforcement Ring, providing torsional strength, rigidity, and consistency on grooved weld Patented center-stem-guided Compound Check with standardized repair parts compatible with legacy models Relief valve sensing port located away from debris path, reducing risk of fouling Test cocks can be located on either side of valve Industry standard grooved couplings used throughout Shut-offs available as NRS, PIV, gate valves, and butterfly valves j Model 3STOSY Shown 3 ouble Check etector ssembly 2-1/2" - 1" Low-hazard fire protection applications Horizontal or vertical installations SSE 1, WW C-1, FM, UL, CUL, CS B..1, USC j i Stainless Steel Stems on Gates vailable with Flanged Butterfly Valves Model 3STBF Shown CERTIFIE B CKFLOW TECHNICI N Preferred by Certified Backflow Technicians 2 3

3ST Series ccessories and Options 3 Series Features Sizes: 2-1/2", 3", ", ", ", 1" Maximum working water pressure 17 PSI Maximum working water temperature 1 Hydrostatic test pressure 3 PSI End connections (Grooved for steel pipe) WWC (Flanged) NSI B1.1 Class Integral Relief Valve Monitor Switch Option In the event of a backflow condition, the relief valve closes an electrical contact on the MS switch, signaling that a possible relief valve discharge may be occurring This option is ideal for use in mechanical rooms, basements and enclosures where undetected relief valve discharge could potentially cause water damage Can be connected to a central alarm panel May be used with Zurn Wilkins EST and ZW2 Options (Suffixes can be combined) l - with flanged end NRS gate valves (standard) l FSC - with epoxy coated wye type strainer (flanged only) l G - with grooved end NRS gate valves l GF - with grooved inlet gate connection and flanged outlet gate connection l FG - with flanged inlet gate connection and grooved outlet gate connection l MS - with Integral Relief Valve Monitor Switch l OSY - with flanged end gate valves l OSYG - with grooved end gate valves l BG - with grooved end butterfly valves with integral supervisory switches l BF - with flanged end butterfly valves with integral supervisory switches l PI - with post indicator gate valves Five-year stainless steel body warranty* Time tested, most reliable backflow components Sustainable solution to ensure safe drinking water Ultimate in liability protection Lowest total life-cycle cost, providing facility management budget savings Simple, easy maintenance requires less labor Low cost repair kits Enhanced flow performance, curves available on Zurn.com * Warranty covers workmanship and materials on the body only Proven, Patented Compound Check Provides a mechanical assist resulting in very low pressure loss Center stem guided to ensure no backflow Reversible, replacement seat discs allow minimum down time and minimum repair costs ccessories l Repair kit (rubber only) l Thermal expansion tank (Model XT) l OS & Y Gate valve tamper switch (OSY-) l ir gap (Model G) l Electronic Solenoid Timer (Model EST) l QT-SET Quick Test Fitting Set l Wye Strainers (Model FSC) Visit www.youtube.com/onezurn for Zurn Wilkins Backflow Preventer videos

3R Series Backflow Preventer 3ST Series is also available as the Patented R Series, Custom Length ssembly Replacement Save time and money during a backflow replacement Features and Benefits Custom manufactured assembly to virtually any given length, allowing for drop in replacement of any legacy or competitive valve on the market 3 ouble Check etector ssembly 2-1/2"- 1" Low-hazard applications SSE 1, WW C-1, FM, UL, CUL, CS B..1, USC Simple replacement without the need for spool fabrication Just measure the current flange face-to-face dimension and your 3R will be built to match the current footprint Shut-offs remain in the same location, enabling tamper switches to be reinstalled without modifying electrical wiring Zurn Wilkins is the only manufacturer that offers this patented solution, US Patent No.,997,772 Model 3STRBF shown 37 Reduced Pressure etector ssembly 2-1/2" - 1" High-hazard fire protection applications SSE 17, CS B..1, FM, UL, CUL, USC Minimum Face to Face imension (overall lay length) Valve uctile Iron Body Stainless Steel Body* Size Gate Valves Butterfly Valves Gate Valves Butterfly Valves 2-1/2" 37-1/" 3-1/" 3" 31" 3" 3-1/" 3- /" 3" 31-1/2" " - 1/2" 3-3/" 37-3/" 32- /" " 9-1/2" 2-1/2" " 39" " - 7/" 7-7/" - 3/" - 3/" 1" 7-3/" 1-3/" - /" 2- /" Model 37STRBG Shown ZURN WILKINS MOEL 37STR Maximum Lengths Valve Size Length Range "" Length Range "B" Length Range "C" 2-1/2" 7-1/" 3" - 1/" " " 2-1/" " 9" 71-1/" " 7" " 1" 77" 9" 1- /" Custom lengths longer than shown are available * Stainless steel backflow body is slightly shorter than ductile iron body REPLCE SSEMBLY FCE TO FCE IMENSION

3 ouble Check ssembly (3ST) and 3 ouble Check etector ssembly (3ST) 3ST & ST IMENSIONS SIZE WITH B C IMENSION (approximate) WITH NRS GTE OPEN CLOSE E F G H 2 1/2 31 7/ 1 2 3/ 73 1/2 11 7 1/ 1 11 1/2 292 17 3/ 1 1 3/ 391 1/ 21 7 2 17 1/ 21 3 3 32 7/ 3 29 3/ 7 1/2 11 7 1/ 1 3/ 32 2 1/ 1 17 32 1/ 21 7 3 1/2 11 9 1/ 23 3 1 3 7/ 3 1/ 7 1/2 11 23 1 1/2 3 22 1/2 72 1 1/ 9 229 7 7 1/2 31 3 1 / 1 1 1 3 1/2 11 3 1/2 927 1/2 1 1 2 1 7 3 1/2 77 2 1/ 1 1 1/ 2 3 1 1/2 27 199 17 213 77 1/ 3/ 2 2 3/ 13 3/ 112 9 1/ 23 11 279 21 1/ 37 37 9 2 1/2 72 1 1/2 7 3/ 1 1 1/ 3 1 2 3/ 11 9 3/ 9 1/ 23 3 2 3/ 29 / 119 3 3/ 3 1 1/2 7 3/ 213 3/ 21 21 1/ 1 1/ 3 PRESSURE LOSS (PSI) PRESSURE LOSS (PSIG) PRESSURE LOSS (PSI) PRESSURE LOSS (PSI) MOEL 3ST 2 1/2", 3" & " (STNR & METRIC).. 2.2 37.9. 1 1 37ST & ST IMENSIONS 1 IMENSION (approximate) SIZE WITH WITH B C E F G H NRS GTE OPEN CLOSE 2 1/2 31 7/ 1 2 3/ 73 1/2 11 1/ 1 11 1/2 292 17 3/ 1 1 3/ 391 1/ 21 3/ 2 2 17 1/ 21 3 7 9 3 32 7/ 3 29 3/ 7 1/2 11 7 1/ 1 3/ 32 2 1/ 1 17 32 1/ 21 9 3/ 2 3 1/2 11 9 1/ 23 3 3 1 3 7/ 3 1/ 7 1/2 11 1 1/2 3 22 1/2 72 1 1/ 9 9 3/ 2 7 1/2 31 2 23 229 3 MOEL 3ST ", " & 1" (STNRS N METRIC) 1 3 1/2 11 3 1/2 927 1/2 1 1 2 1 7 3 1/2 77 2 1/ 1 1 1/ 2 1 3/ 273 1 / 1 1 3 1 1/2 27 FLOW RTES (GPM) 2 2 3/ 13 3/ 112 9 1/ 23 11 279 21 1/ 37 37 9 2 1/2 72 1 1/2 7 1 / 397 77 1/ 199 17 3/ 1 1 1/ 3 1 2 3/ 11 9 3/ 9 1/ 23 3 2 3/ 29 / 119 3 3/ 3 1 1/2 7 1 / 397 3/ 21 21 1/ 1 1/ 3 FLOW RTE (l/s) 3.1.2 19.3 22. 2 " Opening Curve 1" Opening Curve 1 1 1 " Opening Curve 3 1 2 3 MOEL 3ST 2 1/2", 3" & " (STNR & METRIC).. 2.2 37.9. 1 1 1 3 2 FLOW RTES (GPM) MOEL 3ST " " & 1" (STNR N METRIC). 3.1.2 19.3 22. 2 1" Opening Curve 1 1 " Opening Curve " Opening Curve 1 3 1 2 3

37 Reduced Pressure ssembly (37ST) and 37 Reduced Pressure etector ssembly (37ST) 3ST & ST IMENSIONS IMENSION (approximate) SIZE WITH 2 1/2 31 7/ 1 2 3/ 32 7/ 3 29 3/ 3 B NRS GTE C 73 1/2 11 7 1/ 1 11 1/2 292 17 3/ 1 1 3/ 391 1/ 21 7 2 7 1/2 11 7 1/ 1 3/ 32 2 1/ 1 1/ 21 9 229 7 3 1/2 77 2 1/ 1 1 1/ 2 1 3 1/2 11 3 1/2 927 1/2 1 1 2 17 F E 7 1/2 11 WITH 1 3 7/ 3 1/ CLOSE OPEN 32 23 1 1/2 3 22 1/2 72 1 1/ 1 37 G H 17 1/ 21 3 7 3 1/2 11 9 1/ 23 3 7 7 1/2 31 3 1 / 1 1 3 1 1/2 27 2 2 3/ 13 3/ 112 9 1/ 23 11 279 21 1/ 37 1 2 3/ 11 9 3/ 9 1/ 23 3 2 3/ 29 / 119 3 3/ 3 1 1/2 7 3/ 213 3/ 21 21 1/ 1 1/ 3 9 2 1/2 72 1 1/2 7 3/ 213 77 1/ 199 17 3/ 1 1 1/ 3 37ST & ST IMENSIONS IMENSION (approximate) SIZE WITH B NRS GTE C 2 1/2 31 7/ 1 2 3/ 3 32 7/ 3 29 3/ OPEN CLOSE 73 1/2 11 7 1/ 1 11 1/2 292 17 3/ 1 1 3/ 391 7 1/2 11 7 1/ 1 3/ 32 2 1/ 1 1 3 7/ 3 1/ 7 1/2 11 1 3 1/2 11 3 1/2 927 1/2 1 1 2 17 32 23 1 1/2 3 22 1/2 72 1 1/ 1 WITH 1/ 1/ 9 E F 21 9 3/ 2 2 3 21 9 3/ 2 3 1/2 11 9 1/ 23 3 229 9 3/ 2 3 17 1/ 21 7 1/2 31 7 3 1/2 77 2 1/ 1 1 1/ 2 1 3/ 273 1 / 1 37 H G 1 3 1 1/2 27 2 2 3/ 13 3/ 112 9 1/ 23 11 279 21 1/ 37 1 2 3/ 11 9 3/ 9 1/ 23 3 2 3/ 29 / 119 3 3/ 3 1 1/2 7 1 / 397 3/ 21 21 1/ 1 1/ 3 9 2 1/2 72 1 1/2 7 1 / 397 77 1/ 199 17 3/ 1 1 1/ 3 MOEL 37ST 2 1/2", 3" & " (STNR & METRIC) 2. 2.2 37.9 1. 1 1 3 2 19.3 22. PRESSURE LOSS (PSI). FLOW RTES (GPM) MOEL 37ST ", " & 1" (STNR N METRIC) 3 3.1.2 1" Opening Curve 2 " Opening Curve " Opening Curve 1 1 2 3 PRESSURE LOSS (PSI) FLOW RTE (l/s). MOEL 37ST 2 1/2", 3" & " (STNR & METRIC). 2.2. 37.9 1. 1 1 3 2 FLOW RTES (GPM) PRESSURE LOSS (PSI) 2 PRESSURE LOSS (PSI) MOEL 37ST ", " & 1" (STNR N METRIC) 3..2 3.1 19.3 1" Opening Curve 2 " Opening Curve " Opening Curve 1 22. 27 1 2 3 7

Stainless Steel The Next Generation of Backflow Customer Service Representatives are available Monday through Friday :3 a.m. to : p.m., PT. Call -ONE-ZURN (-3-97), email zurn-info@zurn.com or visit us online at www.zurn.com. ZURN WILKINS 177 Coerce Way, Paso Robles, C 93 -ONE-ZURN (-3-97) In Canada: ZURN INUSTRIES LIMITE 3 Nashua rive, Mississauga, Ontario LV 1L2, 9--272 Form No. ZMKTG-2, Rev. /1