Before installing a model 375 series backflow preventer, flush the line thoroughly. Principle backflow preventer shall be a wilkins model 375xl. Zurn wilkins 375 installation, testing, maintenance instructions. Faulty installation could result in an improperly functioning device. If such conditions exist, install a zurn wilkins water pressure reducing valve, a model. Excerpt field testing backflow preventers, instructional video duration. If installation is in a pit or vault, the backflow preventer must never be submerged in water because this could cause a crossconnection. Installation of backflow preventers must be performed by qualified, licensed personnel. The zurn wilkins connected backflow preventer is the first product offering from the line of zurn connected products. The model 375 provides protection where a potential health hazard exists. Before installing a model 375475 series backflow preventer, flush the line thor oughly to remove all debris, chips and other foreign matter.
Wilkins a zurn company, 1747 commerce way, paso robles, ca 93446. Zurn wilkins backflow prevention how to winterize your. Wilkins model 375475 series assemblies are for use on potable water lines where a. Wilkins series 375 reduced pressure assemblies, manufactured by zurn, are designed for installation on potable water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. The flanged, epoxy coated ductile iron body is available with multiple shutoff valve options for installation versatility.
The zurn wilkins 375 reduced pressure principle backflow preventer provides high hazard protection for nonpotable applications. Zurn wilkins 375 epoxy coated 300l ductile iron and stainless steel flanged 175 psi backflow preventer w375j to see availability for this product, create an account. Wilkins model 375 reduced pressure principle a zurns company backflow preventers 12 2 12 1 materials housing fasteners elastomers internals springs ball valves struts features reinforced nylon, fda approved stainless steel, 300 series silicone fdaapproved. The reduced pressure principle backflow preventer shall be australian watermark approved asnzs 2845.
Looking for zurn wilkins reduced pressure zone backflow preventer, epoxy coated ductile iron body, wilkins 375 series, flange 6cun5. Zurn wilkins backflow prevention how to winterize your irrigation system. The compound check provides a mechanical assist resulting in very low. Zurn wilkins 375375a475 leadfree complete relief valve repair kit sizes 810 w0887192 watts rk 007m1t complete repair kit, leadfree sizes 1 122. If spitting or intermittent discharges from the relief valve are noted, it could be a result of pressure fluctuation andor a water hammer condition in the system. Model 375 reduced pressure backflow preventer 21 2 1 o. Pressure principle backflow prevention assembly shall be a wilkins model 375. The main body shall be nylon and the seat disc elastomers shall be. The zurn wilkins 375 reduced pressure principle backflow preventer provides high hazard protection for all applications. Model 375 zurn wilkins backflow reduced pressure zone device valve size a b mm mm mm 20 182 360 25 228 440 32 367 625 40 367 650 50 367 705 dimensions in millimeters approximate watermark asnzs 2845.
If required, a strainer should be placed upstream of the backflow preventer. The reduced pressure principle backflow preventer shall be a wilkins model 375. Wilkins 1 375 backflow preventer 75 rpz reduced pressure principle assembly. Repair parts shop backflow parts, preventer, watts, wilkins. The double check backflow preventer shall be asse listed 1015, and supplied with full port gate valves.
Zurn wilkins reduced pressure zone backflow preventer, epoxy. Wilkins 34 375 backflow preventer 34375 rpz reduced pressure principle assembly. Principle backflow preventers are for use on potable water lines where a health hazard could exist if a backflow. Apr 27, 2016 zurn wilkins backflow prevention how to winterize your irrigation system.
If such conditions exist, install a wilkins water pressure reducing valve, or a wilkins wa. Plumbing codes mandate that potable water supplies be protected against backflow at all crossconnections. Lead free transition with the changeover to lead free in the united states that became effective january 4, 2014, lead free backflow prevention devices are required in certain applications andor settings. The 375 series provides a unique design with its removable pressure vessel and low lead composition. Usc foundation for crossconnection control and hydraulic research 80,424 views 5.
The reduced pressure principle backflow preventer shall be certified to nsfansi 61. The reduced pressure principle backflow preventer shall be asse listed 10. F 34 375 rp zurn wilkins floor drain model 375xlsag shown optional leadfree strainer model sxl wilkin s xl capacity thru schedule 40 pipe pipe size 5 ftsec 7. Proper performance is dependent upon following these installation instructions and prevailing governmental and industry standards and codes. Fittings ship in box with valve and must be threaded into. Designed for installation on potable water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. Wilkins model 375 reduced pressure principle assembly 2 12 relief valve. The innovative ezswap pressure vessel is removed and replaced with the. Zurn wilkins backflow reduced pressure zone device. The 375aw1 ductile iron body, grooved end reduced pressure principle assembly with integral wireless relief valve monitor provides high hazard protection for. Wilkins reduced pressure zone assembly 375 series 65250mm.
Zurn 34350xl lead free double check valve assembly, 34 fnpt. Make sure that the pit or vault always remains dry by providing ample drainage. The main body and access covers shall be epoxy coated cast iron astm a126 class b, the seat ring and check valve shall be cast bronze astm b 584, the stem shall be stainless steel astm a 276 and the seat disc elastomers shall be epdm. The model 375 reduced pressure principle backflow preventer is now in service. Wilkins backflow preventers deeco services ltd water. Wilkins model 375 475 series assemblies are for use on potable water lines where a. If spitting or intermittent discharges from the relief valve are noted, it could be a result of. Specification submittal sheet model 375 water specialties. Feb 01, 2012 excerpt field testing backflow preventers, instructional video duration. View and download zurn wilkins 375 installation, testing, maintenance instructions online. Backflow preventers the risks to drinking water quality from backflow contamination incidents pose a constant threatwhether theyre nuisance, nonhealth hazards, or serious public health events. Brooks backflow preventers and accessories zurn wilkins.
Utilizes wilkins low headloss compound check lowlead law compliant. Wilkins 375 valves are light weight and have a very low head loss of pressure. Wilkins 34 375 backflow preventer 34 375 rpz reduced pressure principle assembly. Assembly shall provide protection where a potential health hazard exists. The reduced pressure principle backflow preventer shall be a zurn wilkins model 375. The reduced pressure principle backflow prevention assembly shall be a wilkins model 375. Reduced pressure principle backflow prevention assembly shall be a zurn wilkins model 375. The innovative ezswap pressure vessel is removed and replaced with the flush fitting tool for faster flushing and testing. Ductile iron body construction drastically reduces the weight that is normally associated with gray iron bodies, and the patented compound check took head loss to lows not previously seen with a centerstem guided check. Wilkins repair parts shop backflow parts, preventer. Zurn wilkins 375 6 backflow preventer, 6 in, flange, ductile.
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