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August 1, 2008 ' � Sprinkler 83h <br /> EC/QREC ORDINARY <br /> � � � � � � HAZARD UPRIGHT AND <br /> PENDENT SPRINKLERS <br /> VK570 AND VK572 (K14.0) <br /> The Viking Corporation, 210 N Industriai Park Drive, Hastings MI 49058 <br /> Telephone: 269-945-9501 Technical Services 877-384-5464 Fax: 269-818-1680 Emaii: techsvcs@vikingcorp.com <br /> 1. DESCRIPTION — <br /> Viking Standard/Quick Response Extended Coverage Ordinary Hazard (ECOH) <br /> Upright Sprinkler VK570 and Pendent Sprinkler VK572 are thermosensitive glass <br /> bulb spray sprinkiers equipped with a 14 0(202 metric") nominal K-Factor and a <br /> special deflector. <br /> The special deflector is designed to meet Ordinary Hazard density requirements for <br /> specifically listed extended areas of coverage when the required minimum water <br /> supply is provided at the sprinkler. The sprinkler produces the flows required to meet <br /> Ordinary Hazard density requirements at lower pressures than 8.0 or 11.2 (115.2 or ��0 <br /> 161.4 metric') K-Factor sprinklers. <br /> Viking EC/QREC Ordinary Hazard Sprinklers are available in various finishes and <br /> temperature ratings to meet design requirements. The special Teflon� and Polyester <br /> coatings can be used in decorative applications where colors are desired. <br /> Viking VK570 and VK572 Sprinklers may be ordered and/or used as open sprinklers Upright VK570 <br /> (glass bulb and pip-cap assembly removed) on deluge systems. Refer to Ordering <br /> Instructions on the next page. <br /> 2. LISTINGS AND APPROVALS <br /> cULus Listed: Category VNIV <br /> FM Approved: Class 2022 ��� <br /> NYC Approved: MEA 89-92-E, Volume 38 <br /> Refer the Approval Chart on page 83k and Design Criteria on page 831 for cULus and <br /> FM approval requirements that must be followed. <br /> 3. TECHNICAL DATA <br /> Specifications: <br /> Sprinkler VK570 available since 2007. Sprinkler VK572 available since 2004. <br /> Minimum Operating Pressure: Refer to the Approval Chart. Pendent VK572 <br /> Maximum Working Pressure: 175 psi (12 bar) Factory tested hydrostatically <br /> to 500 psi (34.5 bar). Viking Technical Data may be found on <br /> Thread size� 3/4" (20 mm) NPT <br /> Nominal K-Factor• 14.0 U S(202 metric•) The Viking Corporation's Web site at <br /> `Metric K-factor measurement shown is when pressure is measured in Bar When pressure http:llwww.vikinggroupinc.com. <br /> is measured in kPa, divide the metric K-factor shown by 10 0 The Web site may include a more recent <br /> Glass-bulb fluid temperature rated to -65 ° F (-55 ° C) edition of this Technical Data Page. <br /> Overall Length 2-7/16" (62 mm) <br /> Material Standards: <br /> Sprinkler Frame: Brass UNS-C84400 <br /> Deflector: Phosphor Bronze UNS-051000 <br /> Bulb: Glass, nominal 3 mm diameter <br /> Pip Cap Brass UNS-C31400 or UNS-C31600 <br /> Compression Screw: Brass UNS-C36000 <br /> Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with Teflon Tape <br /> For Teflon�_Coated Sprinklers: Belleville Spring-Exposed, Screw-Nickel Plated, Pip Cap-Teflon� Coated <br /> For Polyester Coated Sprinklers: Belleville Spring-Exposed <br /> Ordering Info�mation: (Also refer to the current Viking price list.) <br /> Order EC/QREC Ordinary Hazard Upright Sprinkler VK570 or Pendent Sprinkler VK572 by first adding the appropriate suffix for <br /> the sprinkler finish and then the appropriate suffix for the temperature rating to the sprinkler base part number. <br /> Finish Suffix: Brass = A, Chrome-Enloy� = F, White Polyester = M-/W, Black Polyester = M-/B, and Black Teflon = N <br /> Temperature Suffix (°F/°C)• 155°/68° = B, 175°/79° = D, 200°/93° = E, and 286°/141 °= G, OPEN = Z(Teflon• only). <br /> For example, sprinkler VK570 with a Brass finish and a 155 °F/68 °C temperature rating = Part No. 13840AB. <br /> Form No F_010104 Replaces page 83h-m dated April 4, 2008. (Removed FM <br /> Approval from sprinkler VK572 for recessed applications.) <br />