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June 12, 2013 Sprinkler 149m <br /> � � FREEDOM� RESIDENTIAL <br /> ' � • ` PENDENT SPRINKLER <br /> VK468 (K4.9) <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 /> 1. DESCRIPTION <br /> Viking Freedom� Residential Pendent Sprinkler VK468 is a small, thermosensitive, glass- = 3 <br /> bulb residential sprinkler available in several different finishes and temperature ratings to z - --� <br /> meet varying design requirements. The Electroless Nickel PTFE (ENT) coating has been r � ' � <br /> investigated for installation in corrosive atmospheres and is cULus Listed as corrosion re- ` � <br /> sistant as indicated in the Approval Chart. The orifice design, with a K-Factor of 4.9 (70.6 �1 �� ,��] '� f ��� <br /> metrict), allows efficient use of available water supplies for the hydraulically designed fire- <br /> protection system. The glass bulb operating element and special deflector characteristics �' i <br /> meet the challenges of residential sprinkler standards. � i , <br /> � <br /> � <br /> � � z 1 <br /> 2. LISTINGS AND APPROVALS '�� -.�,��,'�� <br /> � u� �s cULus Listed: Category VKKW � � ' <br /> NYC Approved: MEA 89-92-E, Volume 35 � � �1----- --�--� <br /> UL Classified to: NSF/ANSI Standard 61, Drinking Water System Components <br /> (MH48034). Refer to the Approval Chart on page 1490 and Design Criteria on page 149q for cULus Listing require- <br /> ments that must be foliowed. <br /> 3. TECHNICAL DATA <br /> Specifications: <br /> Available since 2006. <br /> Minimum Operating Pressure: Refer to the Approval Chart. <br /> Maximum Working Pressure: 175 psi(12 bar). Factory tested hydrostatically to 500 psi(34.5 bar). <br /> Thread size: 1/2"(15 mm) NPT <br /> Nominal K-Factor: 4.9 U.S. (70.6 metrict) <br /> tMetric K-factor measurement shown is in Bar.When pressure is measured in kPa,divide the metric K-factor shown by 1 C.O. <br /> Glass-buib fluid temperature rated to-65 °F (-55 °C) <br /> Overall Length: 2-1/4" (58 mm) <br /> Material Standards: Viking Technical Data may be found on <br /> Frame Casting: Brass UNS-C84400 or QM Brass The Viking Corporation's Web site at <br /> Deflector: Brass UNS-C23000, Phosphor Bronze UNS-051000, or Brass http:l/www.vikinggroupinc.com. <br /> UNS-C26000 The Web site may include a more recent <br /> Bulb: Glass, nominal 3 mm diameter edition of this 7echnical Data Page. <br /> Belleville Spring Sealing Assembly: Nickel Ailoy, coated on both sides with <br /> Polytetrafluoroethylene (PTFE)Tape <br /> Pip Cap and Insert Assembly: Copper UNS-C11000 and Stainless Steel <br /> UNS-S30400 <br /> Compression Screw: Brass UNS-C36000 <br /> Fpr ENT coated sprinklers Belleville spring- Exposed Screw and Ppcap ENT plated <br /> Ordering Information: (Also refer to the current Viking price list.) <br /> Sprinkler: Base Part No. 13637 <br /> Order Sprinkler VK468 by first adding the appropriate suffix for the sprinkler finish and then the appropnate suffix for the tempera- <br /> ture rating to the sprinkler base part number. <br /> Finish Suffix: Brass =A, Chrome = F, White Polyester= M-/W, Black Polyester= M-/B, and ENT=JN <br /> Temperature Suffix: 155 °F(68°C)= B, 175°F(79 °C) = D <br /> For example, sprinkler VK468 with a Brass finish and a 155 °F(68°C)temperature rating = Part No. 1;t637AB. <br /> Available Finishes And Temperature Ratings: <br /> Refer to Tabie 1. <br /> Accessories: (Also refer to the"SprinklerAccessories"section of the Viking data book.) <br /> Sprinkler Wrenches: <br /> A. Standard Wrench: Part No. 10896W/B (available since 2000) <br /> B. Wrench for recessed sprinklers: Part No. 13577W/B'(available since 2006) <br /> C. Optional Protective Sprinkler Cap Remover/Escutcheon Installer Tool"Part No. 15915(available since 2010.) <br /> Form No. F_012706 Replaces page 149m-t., dated March 7, 2013. <br /> (Added ENT finish.) <br />