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BACKFLOW <br /> , ' arr- <br /> Be ear B C <br /> DI l E fi Double Check Valve <br /> The Deringer 20 Double Check Valve Assembly is , , <br /> designed to prevent non-health hazard pollutants from <br /> entering the potable water supply system caused by <br /> backpressure and/or backsiphonage conditions. V ' <br /> E <br /> Sizes: 21/2", 3", 4", 6", 8" R t °t <br /> Working Pressure: 10-175psi (0.7-12.1 bat) <br /> m <br /> Temperature Range: 33° 1 l0°F(1° 6C)°C� y " 3i C <br /> End Connections A <br /> -IPS Groove for Steel Pipe: AWWA C606 HORIZONTAL L <br /> -Flange Adapters: ANSI B16.1 Class 125' <br /> For Regulatory Approval Status Visit ':1 <br /> Lead Free: 0.25%Maximum by Weigh{ www.backflowdirectapprovals.com . <br /> Integral Shut Off Valves Dual Action Check Modules Prewired Supervisory <br /> Indoor/Outdoor Application •Poppet at Low Flow Switches <br /> •Swing Action at High Flow <br /> •Patent Pending <br /> . <br /> Silicone Elastomer 1 <br /> fi Check Discs • <br /> • <br /> t..� s <br /> 100%Stainless <br /> FlanAgeaAdapters <br /> Steel Housing 4. �„ .......x t.-rr�'3 .,�.a�3,cce - , <br /> Available <br /> , , %' 7,,,,‘ '°;11 . ', ,„it _ <br /> lis ! ! , , <br /> it, <br /> or I, <br /> ,, , <br /> - � .�� IDS Grooved <br /> ,. '' End <br /> Tamper Resistant <br /> Test Cocks ;a, girt <br /> sees? etc• c ttio <br /> The Deringer 20 Double Check Valve shall utilize two independent Dual Action Check modules and two integral <br /> resiliently seated shut-off valves all of which shall be contained within a single rigid valve housing constructed entirely <br /> of 304 stainless steel. Both integral shutoff valves shall include pre-wired supervisory tamper switches contained within <br /> a weatherproof actuator housing approved for both indoor and outdoor use. Dual Action Check modules shall operate as <br /> a "poppet style" check under low flow conditions, operate as a "swing style"•check under high flow conditions and <br /> utilize replaceable silicone elastomer sealing discs. Assembly test cocks shall be handle-less and operate via a tamper <br /> resistant actuator.Assembly shall have a single full access service port and cover with an "inline" replaceable elastomer <br /> seal. Assembly shall be serviceable without special tools and approved for both horizontal and vertical applications. <br /> Job Name: Contractor: <br /> Job Location: Approval: <br /> Engineer: Contractor's P.O.No: <br /> Approval: Representative: <br /> RaeLtlow t)irect, Ll,t' * 3200 Monier( Irclt • R:ttaclh N( ord spa•(alil'ornrt •95742 •I'oiled Slates cal`Americda <br /> • Phone: 91 to-760-4 24 NS ebsite: www.backflowdirect.kont <br />