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The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
1. DESCRIPTION
The Viking MicrofastHP® Fixed Temperature Release is a fixed-temperature, heat-responsive
device. It is designed for use on pilot line release systems to activate deluge and preaction sys-
tems. The fixed temperature release is equipped with a 3 mm glass bulb and is available in sev-
eral finishes and temperature ratings to meet design requirements. The special Polyester and
Teflon® coatings can be used in decorative applications where colors are desired. In addition,
these two finishes are listed as corrosion-resistant finishes and provide protection against many
corrosive environments. The fixed temperature release design closely resembles the Model M
frame-style sprinkler design, but is easily identified by its special listing information plate. This
is important when fixed-temperature releases are installed along with sprinklers below ceilings
on concealed systems.
2. LISTINGS AND APPROVALS
UL listed Guide No. VLTR for use under smooth, flat, horizontal ceilings. Meets FM require-
ments when spaced according to NFPA 13 and FM Global recommendations. See Design
Guidelines.
3. TECHNICAL DATA
Specifications:
Thread Size: ½" (15 mm) NPT
Glass-bulb fluid temperature rated to -65 °F (-55 °C).
Rated to 250 PSI (1 724 kPa) water working pressure.
Factory tested hydrostatically to 500 PSI (3 448 kPa).
Testing: USA Patent No. 4,831,870
Material Standards:
Frame: Brass Castings UNS-C84400
Bulb: Glass, nominal 3 mm diameter
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with Teflon Tape
Screw: Brass UNS-36000
Pip Cap: Copper UNS-C11000 and Stainless Steel UNS-S30400
Polyester-Coated Releases:
Spring: exposed
Teflon®-Coated Releases:
Spring: exposed
Screw: Brass UNS-C36000, nickel plated
Pip Cap: Copper UNS-C11000 and Stainless Steel UNS-S30400, Teflon® coatedACCESSORIES
Refer to the "Sprinkler Accessories" section for wrench, escutcheons, and other accessories.
Ordering Information:
Order MicrofastHP® Fixed Temperature Release by first adding the appropriate suffix for the sprinkler finish and then the appropriate
suffix for the temperature rating to the sprinkler base part number.
Finish Suffix: Brass = A, Chrome-Enloy® = F, White Polyester = M-/W and Black Teflon = N
Temperature Suffix (°F/°C): 135°/57° = A, 155°/68° = B, 175°/79° = D, 200°/93° = E, 286°/141° = G
For example, Fixed Temperature Release VK800 with a Brass finish and a 155 °F/68 °C temperature rating = Part No. 07848AB
Available Finishes And Temperature Ratings: Refer to Table 1
Accessories: (Also refer to the "Sprinkler Accessories" section of the Viking data book.)
Sprinkler Wrench - Part No. 10896W/B
4. DESIGN AND INSTALLATION
I. Design Guidelines
Viking Fixed Temperature Releases are intended for use on hydraulic or pneumatic pilot line release systems in deluge or preaction
sprinkler systems. Consult required installation standards, approving agencies, and the Authorities Having Jurisdiction requirements
when designing pilot line release systems. Do not exceed the minimum manufacturer's recommendations listed below.
A. Temperature Rating:
1. The temperature rating of the fixed temperature release should be as close as possible to a temperature that is at least 20 °F
higher than the highest ambient ceiling temperature. Refer to the Approval Chart.
2. For localized high ambient temperatures such as those caused by unit heaters and skylights, substitute higher temperature-rated
Form No. F_051091
18.10.25
TECHNICAL DATA
(Also refer to the current Viking price list.)
P65
MICROFAST HP
FIXED TEMPERATURE
RELEASE VK800
Viking Technical Data may be found on
The Viking Corporation's Web site at
http://www.vikinggroupinc.com.
The Web site may include a more recent
edition of this Technical Data Page.
Replaces Form No. F_051091 Rev June 15, 2007
Page 1 of 4
(Added P65 Warning.)
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Table of Contents
Related Manuals for Viking VK800
Summary of Contents for Viking VK800
- Page 1 Temperature Suffix (°F/°C): 135°/57° = A, 155°/68° = B, 175°/79° = D, 200°/93° = E, 286°/141° = G For example, Fixed Temperature Release VK800 with a Brass finish and a 155 °F/68 °C temperature rating = Part No. 07848AB Available Finishes And Temperature Ratings: Refer to Table 1 Accessories: (Also refer to the “Sprinkler Accessories”...
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Page 2: Technical Data
C. Location: 1. When applying NFPA 72, Viking MicrofastHP® Fixed Temperature Releases are treated as spot-type heat detectors. Locate fixed temperature releases between 4” and 12” (100 mm and 300 mm) below the ceiling, and no closer than 4” (100 mm) from any wall or partition that extends to within 18”... - Page 3 If a glass bulb lacks the appropriate amount of fluid, it should be set aside and returned to Viking (or an authorized Viking distributor) for analysis as soon as possible. If the fixed temperature release is not returned to Viking, it should be destroyed immediately.
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Page 4: Operation
Viking products are available through a network of domestic, Canadian, and international distributors. See the Viking Corp. Web site for your closest distributor or contact The Viking Corporation. Viking Technical Data may be found on The Viking Corporation’s Web site, located at http://www.vikinggroupinc.com. The Web site may include a more recent edition of this Technical Data page. - Page 5 Refer to the appropriate technical data page and NFPA standards for complete care, handling, installation, and maintenance instructions. For additional product and system information Viking data pages and installation instructions are available on the Viking Web site at www.vikinggroupinc.com.
- Page 6 * Refer to the appropriate current technical data pages for complete care, handling, and installation instructions. Data pages are included with each shipment from Viking or Viking distributors. They can also be found on the Web site at www. vikinggroupinc.com.
- Page 7 • while ceiling finish work is being completed. Use only the designated Viking recessed sprinkler wrench (refer to the appropriate sprinkler data page) to install these sprinklers. NOTE: The protective cap is • temporarily removed during installation and then placed back on the sprinkler for protection until finish work is completed.
- Page 8 Take care not to crack the wax coating on the units. • For touching up the wax coating after installation, wax is available from Viking in bar form. Refer to Table 1 below. The coating MUST be repaired after •...
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Page 9: Listings And Approvals
1. DESCRIPTION Viking fire sprinklers consist of a threaded frame with a specific waterway or orifice size and a deflector for distributing water in a specified pattern. A closed or sealed sprinkler refers to a complete assembly, including the thermosensitive operating element. An open sprinkler does not use an operating element and is open at all times. - Page 10 TECHNICAL DATA SPRINKLER OVERVIEW The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058 Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com VERTICAL SIDEWALL (VSW) SPRINKLER: A sprinkler intended for installation near the wall and ceiling. The deflector provides a water spray pattern outward in a quarter-spherical pattern and can be installed in the upright or pendent position with the flow arrow in the direction of discharge.
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Page 11: Installation
Refer to NFPA 25 for Inspection, Testing and Maintenance requirements. 7. AVAILABILITY Viking sprinklers are available through a network of domestic and international distributors. See The Viking Corporation web site for the closest distributor or contact The Viking Corporation. 8. GUARANTEE For details of warranty, refer to Viking’s current list price schedule or contact Viking directly. -
Page 12: Warranty Terms And Conditions
For more information, go to www.P65Warnings.ca.gov 2. WARRANTY TERMS AND CONDITIONS For details of warranty, refer to Viking’s current list price schedule at www.vikinggroupinc.com or contact Viking directly. New Bulletin Form No. F_111218 18.11.15...
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