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Page 1 of 6 <br /> jjjjffM <br /> ICR <br /> OFASTO QUICK <br /> RESPONSE HORIZONTAL <br /> SIDEWALL SPRINKLER <br /> VK305 (K5.6) <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 /> The Viking Microfast® Quick Response Horizontal Sidewall Sprinkler VK305 is a small <br /> thermosensitive glass bulb spray sprinkler available with various finishes and tempera- <br /> ture ratings to meet design requirements. The special Polyester and Electroless Nickel <br /> PTFE (ENT) coatings can be used in decorative applications where colors are de- <br /> sired. In addition, these coatings have been investigated for installation in corrosive <br /> atmospheres and are listed/approved roved as corrosion resistant as indicated in Approval <br /> ' <br /> PP PP <br /> Charts. <br /> 2. LISTINGS AND APPROVALS <br /> c 4l. us cULus Listed: Category VNIV <br /> <a> FM Approved: Class 2020 <br /> Refer to Approval Chart 1 and Design Criteria for cULus <br /> Listing requirements,and refer toApproval Chart 2 and Design Criteria for FM Approval requirements that must be followed. <br /> 3. TECHNICAL DATA <br /> Specifications: <br /> Minimum Operating Pressure: 7 psi (0.5 bar) <br /> Rated to 175 psi (12 bar)water working pressure <br /> Factory tested hydrostatically to 500 psi (34.5 bar) <br /> Nominal K-Factor: 5.6 U.S. (80.6 metric*) <br /> *Metric K-factor measurement shown is when pressure is measured in Bar.When pressure Viking Technical Data may be found on <br /> is measured in kPa,divide the metric K-factor shown by 10.0. The Viking Corporation's Web site at <br /> Overall.Length: 2-3/4" (68 mm) http://www.vikinggroupinc.com. <br /> Material Standards: The Web site may include a more recent <br /> Frame Casting: Brass UNS-C84400 or QM Brass edition of this Technical Data Page. <br /> Deflector: Copper UNS-C19500 <br /> Bulb: Glass, nominal 3 mm diameter <br /> Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with PTFE Tape <br /> Screw: Brass UNS-C36000 <br /> Pip Cap and Insert Assembly: Copper UNS-C11000 and Stainless Steel UNS-S30400 <br /> For Polyester Coated Sprinklers: Belleville Spring-Exposed <br /> For ENT Coated Sprinklers: Belleville Spring- Exposed, Screw and Pip cap- ENT plated. <br /> Ordering Information: (Also refer to the current Viking price list.) <br /> Order Viking Microfast®Quick Response Horizontal Sidewall Sprinkler VK305 by first adding the appropriate suffix for the sprin- <br /> kler finish and then the appropriate suffix for the temperature 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: 135 'F/68 *C=A, 155 *F/68 °C= B, 175 'F/79*C= D, 200 'F/93 *C= E, and 286 'F/141 °C=G <br /> For example, sprinkler 12997 with a Brass finish and a 155'F/68*C temperature rating = Part No. 12997AB <br /> Available Finishes And Temperature Ratings: Refer to Table 1. <br /> Accessories: (Also refer to the"Sprinkler Accessories"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 and/or wax coated sprinklers: Part No. 13655W/B**(available since 2006) <br /> **A%"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 060914 Rev 14.2 (Added 12121) <br />