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Page 1 of 5 <br /> NIKING® FREEDOM®RESIDENTIAL <br /> TECHNICAL DATA HORIZONTAL SIDEWALL <br /> SPRINKLER VK484(K4.2) <br /> The Viking Corporation,210 N Industrial Park Drive,Hastings MI 49058 <br /> Telephone:269-945-9501 Technical Services:877-384-6464 Fax:269-818-1680 Email:techsvcsavikingcorp.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 Horizontal Sidewall Sprinkler VK484 is a small, <br /> thermosensitive, glass-bulb residential sprinkler available in several different <br /> finishes and temperature ratings to meet varying design requirements. The <br /> Electroless Nickel PTFE (ENT) coating has been investigated for installation in <br /> corrosive atmospheres and is cULus Listed as corrosion resistant as indicated ,f <br /> in the Approval Chart. The sprinkler orifice design, with a K-factor of 4.2, <br /> allows efficient use of available water supplies for the hydraulically designed <br /> fire-protection system. The glass bulb operating element and special deflector =' w <br /> characteristics meet the challenges of residential sprinkler standards. <br /> 2. LISTINGS AND APPROVALS <br /> cows cULus Listed:Category VKKW <br /> Refer to the Approval Chart and Design Criteria for cULus Listing requirements that must be followed. <br /> 3. TECHNICAL DATA <br /> Specifications: <br /> Available since 2011. <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:4.2 U.S.(57 metrict) <br /> t Metric K-factor measurement shown is in Bar.When pressure is measured in kPa,divide the metric K-factor shown by 10.0. <br /> Glass-bulb fluid temperature rated to-65"F(-55"C) <br /> Overall Length:3"(76 mm) <br /> Material Standards: <br /> Frame Casting:QM Brass <br /> Deflector. Brass UNS-C23000 <br /> Bulb:Glass,nominal 3 mm diameter <br /> Belleville Spring Sealing Assembly: Nickel Alloy,coated on both sides with Polytetrafluoroethylene(PTFE) <br /> Compression Screw:Brass UNS-C36000 <br /> Pip Cap and Insert Assembly:Copper UNS-C11000 and Stainless Steel UNS-S30400 <br /> Pip Cap Attachment: Brass UNS-C36000 <br /> For ENT coated sprinklers: Belleville spring-Exposed,Screw and Piocao-ENT plated. <br /> Ordering Information:(Also refer to the current Viking price list.) <br /> Sprinkler:Base Part No. 16240 <br /> Order Sprinkler VK484 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)=B, 175°F(79°C)=D <br /> For example,sprinkler VK484 with a Brass finish and a 155°F(68°C)temperature rating=Part No. 16240AB. <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. 13655W/Btt(available since 2006) <br /> ttA W ratchet is required(not available from Viking). <br /> Sprinkler Cabinets: <br /> A.Six-head capacity: Part No.01724A(available since 1971) <br /> B.Twelve-head capacity: Part No.01725A(available since 1971) <br /> Form No.F_050310 17.XX.XX Rev 17.1 Replaces Form No. F_050310 Rev 16.1 <br /> (Replaced wrench 10896WB with 21475M/B) <br />