Laserfiche WebLink
Page 1 of 9 <br /> R QUICK RESPONSE <br /> DRY PENDENT <br /> N41KJNG4 ELO SPRINKLERS <br /> The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058 <br /> Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com <br /> Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com <br /> 1. DESCRIPTION <br /> Viking Quick Response Dry Pendent Extra-Large Orifice (ELO) Sprinklers are <br /> thermosensitive spray sprinklers suitable for use in areas subject to freezing. € <br /> These dry pendent ELO sprinklers are FM Approved for storage and non-storage <br /> applications. In certain FM cold storage installations, the dry ELO sprinklers <br /> can provide a design advantage with lower overall water demands. In these <br /> applications, the dry ELO must be installed on a wet pipe system, per FM data <br /> sheet 8-9. In non-storage applications, when used in dry or preaction systems, <br /> the sprinklers are designed to prevent water or condensation from entering the <br /> drop nipple before the sprinkler operates.Viking Standard Response Dry Pendent <br /> ELO Sprinklers are available in various finishes and temperature ratings to meet <br /> design requirements. <br /> The optional dry sprinkler boot assembly is intended to slow the exchange of air <br /> between the inside and outside of the freezer (or any dry sprinkler installation) <br /> to help prevent humidity and temperature differential in the area around the ` <br /> sprinkler. Condensation can lead to ice build-up, which could inhibit sprinkler r��1 <br /> operation or cause premature operation. w slr <br /> If using the insulating boot assemblies included with your sprinklers (optional <br /> for installation), follow the installation instructions in this technical data page. <br /> Insulating boot assemblies, if used, shall be installed on smooth, flat, and clean <br /> surfaces. There are specific installation situations, as with corrugated ceiling <br /> panels, where alternative penetration sealing methods may be utilized. For <br /> additional information contact Viking Technical Services. Thread Size K-Factor <br /> 2. LISTINGS AND APPROVALS 1-1/4"NPT 11.2 <br /> (32 mm BSPT) (161.3 Metric) <br /> F M FM Approved: Classes 2013 and 2015 SIN Style <br /> APPROVED Refer to Approval Chart and Design Criteria for FM Approval <br /> requirements that must be followed. VK547 Plain Barrel <br /> 3. TECHNICAL DATA VK548 Adjustable Recessed <br /> Specifications: VK549 Adjustable Standard <br /> Minimum Operating Pressure: 7 psi (0.5 bar)* <br /> Maximum Working Pressure: 175 psi (12 bar). <br /> Factory tested hydrostatically to 500 psi (34.5 bar) WARNING:Cancer and Reproductive Harm- <br /> Thread size: 1-1/4" NPT or 32 mm BSPT www.P65Warnings.ca.gov <br /> Nominal K-Factor: 11.2 U.S. (161.3 metric**)for all listed and approved lengths. <br /> Covered by the following U.S. Patents: 10,220,231 <br /> * FM Approval, and NFPA 13 installs require a minimum of 7 psi (0.5 bar). <br /> **Metric K-factor measurement shown is when pressure is measured in bar.When pressure is measured in kPa,divide the metric K-factor shown by 10.0. <br /> Material Standards: <br /> Frame Casting: Brass UNS-C84400 <br /> Deflector: Brass <br /> Fusible Link Assembly: Beryllium Nickel, coated with Polyurethane <br /> Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with PTFE Tape <br /> Compression Screw: Brass UNS-C36000 <br /> Pip Cap: Brass UNS-C36000 <br /> Pip Cap Adapter: Brass UNS-C36000 <br /> Orifice: Brass UNS-C36000 <br /> Tube: ERW Hydraulic Steel Tube <br /> Barrel End and Threads: QM Brass <br /> Support(Internal): QM Brass <br /> Barrel: Steel Pipe UNS-G10260, Electrodeposited Epoxy Base finish <br /> Form No. F_040915 20.03.18 Rev. 20.1 Replaces Form No. F_040915 Rev 19.1 <br /> (Revised factor test specifications.) <br />