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Page 1 of 5 <br /> N11(1NG® FREEDOMS RESIDENTIAL <br /> TECHNICAL DATA 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:techsvcsgvikingcorp.com <br /> Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com <br /> 1. DESCRIPTION <br /> Viking Freedom®Residential Pendent Sprinkler VK468 is a small, thermosensitive,glass- <br /> bulb residential sprinkler available in several different finishes and temperature ratings to <br /> meet varying design requirements.The Electroless Nickel PTFE(ENT)coating has been i a <br /> investigated for installation in corrosive atmospheres and is C-UL-US-EU Listed as corro- li a <br /> sion resistant as indicated in the Approval Chart.The orifice design,with a K-Factor of 4.9 <br /> (70.6 metrict),allows efficient use of available water supplies for the hydraulically designed • <br /> fire-protection system.The glass bulb operating element and special deflector characteris- <br /> tics meet the challenges of residential sprinkler standards. C ; <br /> 2. LISTINGS AND APPROVALS w � <br /> ut 's UL Listed(C-UL-US-EU):Category VKKW I iZOP <br /> EU <br /> [yds VdS Approved <br /> NYC Approved: MEA 89-92-E,Volume 35 <br /> UL Classified to:NSF/ANSI Standard 61, Drinking Water System Components(MH48034). <br /> Refer to the Approval Chart and Design Criteria for C-UL-US-EU Listing requirements that must be followed. <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,civide the metric K-factor shown by 10.0. <br /> Glass-bulb fluid temperature rated to-65°F(-55°C) <br /> Overall Length:2-1/4"(58 mm) <br /> Material Standards: <br /> Frame Casting:Brass UNS-C84400 or OM Brass <br /> Deflector: Brass UNS-C23000, Phosphor Bronze UNS-C51000, or Brass UNS-C26000 <br /> Bulb:Glass, nominal 3 mm diameter <br /> Belleville Spring Sealing Assembly: Nickel Alloy,coated on both sides with Polytetrafluoroethylene(PTFE)Tape <br /> Pip Cap and Insert Assembly: Copper UNS-C11000 and Stainless Steel UNS-S30400 <br /> Compression Screw:Brass UNS-C36000 <br /> For ENT coated sprinklers: Belleville spring-Exposed,Screw and Pipcao-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 appropriate 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)=8, 175°F(79°C)=D <br /> For example,sprinkler VK468 with a Brass finish and a 155°F(68°C)temperature rating= Part No. 13637AB. <br /> Available Finishes And Temperature Ratings: <br /> Refer to Table 1. <br /> Accessories:(Also refer to the Viking website.) <br /> Sprinkler Wrenches: <br /> A.Standard Wrench: Part No. 21475M/B(available since 2017) <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 /> *AW ratchet Is required(not available from Viking). <br /> *'Allows use from the floor by attaching a length of 1"diameter CPVC tubing to the tool.Ideal for sprinkler cabinets.Refer to Bulletin F_051808. <br /> Form No.F_012706 17.10.05 Rev 17.1 Replaces Form No.F_012706 Rev 14.2 <br /> (Replaced wrench 10896W/B with 21475M/B) <br />