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ESFR DRY PENDENT SPRINKLER 

VK512 K25.2 (GROOVED)

TECHNICAL DATA

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: [email protected]

Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com

Page 7 of 8

Form No. F_071221    Rev 001    12.10.2021

Listing and Approval Specifications

ESFR Dry Pendent Sprinkler VK512 

Maximum 175 PSI (12 bar) WWP

Base Part 

Number

1

Nominal Length

SIN

Connection Size

Nominal K-Factor

Approval Specification

3

U.S.

metric

2

FM

24850A

191/2" (495 mm)

VK512

11/2"

25.2

363

A1

24853A

251/2" (648 mm)

24856A

311/2" (800 mm)

24859A

371/2" (950 mm)

Approved Temperature Ratings

A - 165 °F (74 °C) and 205 °F (96 °C)

Approved Finish

1 - Brass

 Footnotes

1

 Base part number shown. For complete part number, refer to the price list.

2

 Metric K-Factor measurement shown is when pressure is measured in bar. When pressure is measured in kPa, divide the metric K-Factor by 10.0.

3

 This chart shows listings and approvals available at the time of printing. Other approvals may be in process. 

IMPORTANT: Refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Table 2.

TABLE 4

COMMODITY SELECTION AND DESIGN CRITERIA OVERVIEW FOR MODEL VK512 ESFR PENDENT SPRINKLERS

Storage Type

NFPA

FM

Sprinkler Type

ESFR

Storage

Response Type

ESFR

QR

System Type

Wet Pipe system only

Wet Pipe system only

Temperature Rating(s) ºF (ºC)

165 ºF (74 ºC) and 205 (96 ºC)

165 ºF (74 ºC) and 205 (96 ºC)

Open Frame Single, Double, Multiple-
Row,  or  Portable  Rack  Storage  of  Class  I-IV 
and Group A or B Plastics

Refer to NFPA 13.

Refer to FM 2-0 and 8-9.

Solid  Pile  or  Palletized  Storage  of  Class  I-IV  and
Group A or B Plastics

Refer to NFPA 13.

Refer to FM 2-0 and 8-9.

Idle Pallet Storage

Refer to NFPA 13.

Refer to FM 2-0, 8-9, and 8-24.

Rubber Tire Storage

Refer to NFPA 13.

Refer to FM 2-0 and 8-3.

Rolled Paper Storage (Refer to the standard.)

Refer to NFPA 13.

Refer to FM 8-21.

Flammable Liquid Storage (Refer to the standard.)

Refer to NFPA 30.

Refer to FM 7-29

Aerosol Storage (Refer to the standard.)

Refer to NFPA 30B

Refer to FM 7-31

Automotive  Components  in  Portable  Racks

(Control mode only, refer to the standard.)

Refer to NFPA 13.

N/A

Minimum exposed barrel length

Refer to NFPA 13.

Refer to FM 2-0

Содержание VK512

Страница 1: ...re differentials in the area around the sprinkler Condensation can lead to ice build up which could inhibit sprinkler operation or cause premature operation 2 LISTINGS AND APPROVALS FM Approved Class 2026 Refer to the Approval Chart and Design Criteria for requirements that must be followed 3 TECHNICAL DATA Specifications Available since 2022 Tube diameter 1 11 16 43 86 mm Minimum Operating Pressu...

Страница 2: ...g This sprinkler is to be installed into an area with a maximum ambient temperature of 100 F 38 C meaning if the area will experience temperatures above the maximum ambient rating you shall use a higher temperature rated sprinkler TABLE 1 BASE PART NUMNBER 1 Available Part Numbers and Styles Base Part Number Nominal Length L Connection Style Connection Size 24850A 191 2 495 mm Grooved 11 2 24853A ...

Страница 3: ... must be provided with adequate heat NOTICE Viking ESFR Dry Sprinklers shall be installed into the 1 1 2 grooved run of tee fittings that meet the dimensional require ments of ANSI B16 3 Class 150 The VK512 can be installed into welded outlets that meet the dimensional requirements of ANSI B16 11 WARNING Viking sprinklers are manufactured and tested to meet the rigid requirements of the approving ...

Страница 4: ...5 Lubricate or seal the gaskets on the grroved coupling as necessary 6 Secure the sprinkler in place with a suitable grooved coupling 7 Clean the contact surfaces for the insulating boot NOTE When installing insulating boots pilot holes are required in metallic ceilings 8 Carefully pull apart the rubber rings A to install onto the barrel 9 Place the 2 halves of the seal casing B on either side of ...

Страница 5: ...atest edition of this technical data page www vikinggroupinc com Page 5 of 8 Form No F_071221 Rev 001 12 10 2021 Fill space with one part expandable foam Fill space with one part expandable foam Figure 3 Recommended Sealing Methods Option 1 Option 3 Option 2 8 Jacket insulation maximum above deck penetration 6 Minimum Exposed Length at connection Insulated ceiling structure Minimum 31 2 clearance ...

Страница 6: ...4 Maintain a minimum 12 300 mm vertical distance between the top of the area s ceiling and the overhead sprinkler piping that will feed the dry pendent sprinklers 5 5 2 NFPA Requirement for Minimum Exposed Barrel Lengths Refer to the latest edition of NFPA 13 Where dry sprinklers are connected to wet pipe sprinkler systems protecting areas subject to freezing temperatures the minimum exposed lengt...

Страница 7: ...ble at the time of printing Other approvals may be in process IMPORTANT Refer to Bulletin Form No F_091699 Care and Handling of Sprinklers Also refer to Table 2 TABLE 4 COMMODITY SELECTION AND DESIGN CRITERIA OVERVIEW FOR MODEL VK512 ESFR PENDENT SPRINKLERS Storage Type NFPA FM Sprinkler Type ESFR Storage Response Type ESFR QR System Type Wet Pipe system only Wet Pipe system only Temperature Ratin...

Страница 8: ...ons may vary due to corrosive atmospheres water supplies and activity around the device B Sprinklers that have been painted or mechanically damaged must be replaced immediately Sprinklers showing signs of corrosion shall be tested and or replaced immediately as required Installation standards require sprinklers to be tested and if necessary replaced after a specified term of service Refer to the i...

Страница 9: ...stall sprinklers onto piping at the floor level Install sprinklers after the piping is in place to prevent mechanical damage DO NOT allow impacts such as hammer blows directly to sprinklers or to fittings pipe or couplings in close proximity to sprinklers Sprinklers can be damaged from direct or indirect impacts DO NOT attempt to remove drywall paint etc from sprinklers Take care not to over tight...

Страница 10: ...D CAPS MUST BE REMOVED FROM SPRINKLERS BEFORE PLACING THE SYSTEM IN SERVICE Figure 1 Sprinkler shield being removed from a pendent sprinkler Figure 2 Sprinkler cap being removed from a pendent sprinkler Figure 3 Sprinkler cap being re moved from and upright sprinkler HOW TO REMOVE SHIELDS AND CAPS No tools are necessary to remove the shields or caps from sprinklers DO NOT use any sharp objects to ...

Страница 11: ... 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 Do not over tighten the sprinklers into fittings during installation Do not use the sprinkler deflector to start or thread the sprinklers into fittings during installation Do not attempt to remove drywall paint etc from the sprinkl...

Страница 12: ...t the corrosion resistant properties of the sprinkler Use care when locating sprinklers near fixtures that can generate heat Do not install sprinklers where they would be exposed to temperatures exceed ing the maximum recommended ambient temperature for the temperature rating used Inspect the coated sprinklers frequently soon after installation to verify the integrity of the corrosion resistant co...

Страница 13: ...t readings to be expected In addition recognized installation rules may require a higher temperature classifica tion depending upon sprinkler location occupancy classification commodity classification storage height and other hazards In all cases the maximum expected ceiling temperature dictates the lowest allowable temperature classification Sprinklers located immediately adjacent to a heat sourc...

Страница 14: ...ly intended for installation with a concealed piping system The assembly con sists of a sprinkler installed in a decorative adjustable recessed escutcheon that minimizes the protrusion of the sprinkler beyond the ceiling or wall without adversely affecting the sprinkler distribution or sensitivity Refer to the appropriate technical data page for allowable sprinkler models temperature ratings and o...

Страница 15: ...TENANCE 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 IMPORTAN...

Страница 16: ...ction of fire protection products are provided herin as they relate to legally mandated jurisdictional regions WARNING STATE OF CALIFORNIA USA Installing or servicing fire protection products such as sprinklers valves piping etc can expose you to chemicals including but not li mited to lead nickel butadiene titaninum dioxide chromium carbon black and acrylonitrile which are known to the State of C...

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