7720 HARDESON RD K & H PRINTING 2025-01-31

ES-A-Deringer 30 Engineering Specification Job Name Contractor Job Location Approval Engineer Contractor's P.O. No. Approval Representative DeringerTM 30 I,l— Double Check Detector Assembly ,_. DCDA-II � 1 � r rr 211 -811 The DeringerTM 30 Double Check Detector assembly prevents • • "' non-health hazard pollutants from entering a potable water supply system when backpressure and/or backsiphonage Approved for Fire Protection,Waterworks,Plumbing, conditions occur.Used primarily on fire sprinkler systems when monitoring of unauthorized water use is required. and Irrigation Applications Features shall Include a meter registering either gallons or cubic feet, a single check valve, and required test cocks.The assembly shall • Integral shutoff valves for indoor or outdoor application be serviceable without special tools and approved for both • 100%stainless steel housing horizontal and vertical applications. • Tamper-resistant test cocks Materials • Patented Dual-actionT"'check modules - Poppet action at low flow Valve Housing: 304 Stainless Steel -Swing action at high flow Valve Cover: 304 Stainless Steel • Lead Free`Bronze bypass components SOV Disks: EPDM/304SS • CuFt or gallons bypass meter SOV Shafts: 304 Stainless Steel • DCDA-II single check bypass Bypass Spring 302 Stainless Steel • Silicone elastomer check discs SOV Bearings: PTFE Fluoropolymer/Bronze Non-wetted Bolts: Grade 8 Zinc Plated • Prewired supervisory switches Check Disks: Silicone(NSF) • Flange adapters available Wetted Fasteners: 18-8 Stainless Steel • IPS grooved ends Bypass Components: Lead Free Bronze Check Springs: 17-7 Stainless Steel Specification Check Pins: 17-7/18-8 Stainless Steel The Deringer 30 Double Check Detector assembly shall use Check Seats: Noryl®Polymer(NSF) two independent Dual-action check modules and two integral 0-rings: Buna-N(NSF) resiliently seated shutoff valves,all of which shall be contained Bypass Internals: ABS Polymer(NSF) within a single rigid valve housing constructed entirely of 304 pressure — Temperature stainless steel. Both integral shutoff valves shall include prewired supervisory tamper switches contained within a weatherproof Temperature Range:33°F—140°F actuator housing approved for both indoor and outdoor use. Working Pressure: 10—175 psi The Dual-action check modules shall operate as a"poppet style"check under low flow conditions,operate as a"swing style"check under high flow conditions,and use replaceable silicone elastomer sealing discs.The assembly test cocks shall The information contained herein is not be handle-less and operate by a tamper resistant actuator.The intended to replace the full product assembly shall have a single full access service port and cover installation and safety information with an in-line replaceable elastomer seal.The bypass assembly available or the experience of a trained product installer.You are required to thoroughly read all installation 'The wetted surface of this product contacted by consumable water contains less instructions and product safety than 0.259u of lead by weight. information before beginning the Noryl is a registered trademark of SHPP Global Technologies B.V. installation of this product. Ames Fire&Watmnwrks product spedlkations In U.S.customary ur&and mebk are apprordmate and are provided for reference only.For precise measure A M E ments,please contact Ames Fire&Watenvoft Tectaical Service.Ames Fire&Watenxxks reserves the right to d"or modify product design,construction, FI R E&WATER W o RK5 specificagons,or materials vdthout prior notice and vAthout barn*any obligation to make such dranges and modifications on Ames Fire&Watemorks products prevlousy or subseque W sold. A WARS Brand