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QUICK RESPONSE 

EXTRA-LARGE ORIFICE 

UPRIGHT SPRINKLER 

VK531 (STORAGE-DENSITY/AREA)

TECHNICAL DATA

Form No. F_120699    18.10.11     Rev 18.2.P65

Page 3 of 5

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

Figure 1:  Sprinkler VK531 and Wrench 

Figure 2:  Sprinkler VK531 Dimensions

05118CW/B

1-3/4” (45 mm)

2-5/16” 

(59 mm)

3/4” NPT

(20 mm)

Protective 

clip

Wrench

flat

Coated 

Upright Sprinkler

Step 1: Carefully slide the 

wrench sideways around 

the deflector, ensuring 

engagement with the 

sprinkler wrench flats.

Sprinkler wrench 11663W/B** 

must be used for installing 

coated sprinklers.

** A 1/2” ratchet is required

(not available from Viking)

Step 2: Carefully press 

the wrench downward and 

ensure engagement with 

the sprinkler wrench flats.

Figure 3:  Wrench 11663W/B for Coated Sprinkler VK531

Summary of Contents for VK531

Page 1: ...red and or used as an open sprinkler glass bulb and pip cap assembly re moved on deluge systems Refer to Ordering Instructions below 2 LISTINGS AND APPROVALS cULus Listed Category VNIV FM Approved Class 2020 VdS Approved Certificate G413059 G413060 LPCB Approved Certificate 096e 14 Refer to Approval Chart 1 and Design Criteria on page 3 for cULus Listing requirements and refer to Approval Chart 2 ...

Page 2: ...r to NFPA 25 for Inspection Testing and Maintenance requirements 7 AVAILABILITY The Viking Quick Response Extra Large Orifice Upright Sprinkler is available through a network of domestic and international dis tributors 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 o...

Page 3: ...page www vikinggroupinc com Figure 1 Sprinkler VK531 and Wrench Figure 2 Sprinkler VK531 Dimensions 05118CW B 1 3 4 45 mm 2 5 16 59 mm 3 4 NPT 20 mm Protective clip Wrench flat Coated Upright Sprinkler Step 1 Carefully slide the wrench sideways around the deflector ensuring engagement with the sprinkler wrench flats Sprinkler wrench 11663W B must be used for installing coated sprinklers A 1 2 ratc...

Page 4: ...ble shows the listings and approvals available at the time of printing Other approvals may be in process 4 Listed by Underwriters Laboratories Inc for use in the U S and Canada 5 cULus Listed only for use in wet pipe sprinkler systems or preaction systems qualifying as wet systems 6 Meets New York City requirements effective July 1 2008 7 cULus Listed as corrosion resistant DESIGN CRITERIA UL Also...

Page 5: ... time of printing Other approvals may be in process 4 FM Approved as corrosion resistant DESIGN CRITERIA FM Also refer to Approval Chart 2 above FM Approval Requirements Quick Response Extra Large Orifice Upright Sprinkler VK531 is FM Approved as a quick response upright Non Storage sprinkler and as a quick response upright Storage sprinkler as indicated in the FM Approval Guide For specific appli...

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