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XT1 Sprinkler and 

XG Guard Assemblies

BULLETIN

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

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Form No. F_091119    19.09.11     Rev 19.1

1.  INTRODUCTION

The purpose of this bulletin is to inform users of proper XG Guard usage for the  Model XT1 Sprinklers. The XG Guard assemblies 

are specifically listed and approved for use on Model XT1 Sprinklers; no other guard assemblies should be used. 

 

 

WARNING  

Viking sprinklers are manufactured and tested to meet the rigid requirements of the approving agency. The sprinklers 

are designed to be installed in accordance with recognized installation standards. Deviation from the standards or 

any alteration to the sprinkler after it leaves the factory including, but not limited to: unlisted accessories, painting, 

plating, coating, or modification, may render the sprinkler inoperative and will automatically nullify the approval and any 

guarantee made by The Viking Corporation. Refer to the Authority Having Jurisdiction prior to installation.  

2.  GENERAL INFORMATION: 

A potential product performance issue may exist when listed products are combined with unlisted product(s) that have not been 

evaluated together by a recognized approval laboratory. With the development of new products and existing products, it is extremely 

important to correctly match a sprinkler with a sprinkler guard. Please refer to the appropriate manufacturer’s technical literature or 

call Viking Technical Services at 877-384-5464.

  

IMPORTANT

 

Model XT1 sprinklers are specifically listed and approved with XG Guard. The XG Guard, part number 22931, is listed 

and approved for use with the following XT1 sprinklers: VK1001, VK1021, VK3001, VK3021, VK2002, VK2022, VK3502, 

VK3522, VK2001, VK2021, VK3501, VK3521.

Refer to the Guards and Water Shields for XT1 Sprinklers Technical Data Sheet at the following link:  

https://www.vikinggroupinc.com/sites/default/files/documents/021319.pdf

 

Listed and Approved XG Guard/XT1 Sprinkler Assembly

Unlisted Guard/XT1 Sprinkler Assembly

Activation 

element T-hinge 

blocked

Summary of Contents for 23874

Page 1: ...5 bar Rated to 175 psi 12 bar water working pressure Factory tested hydrostatically to 500 psi 34 5 bar Thread size 1 2 NPT 15 mm BSPT Nominal K factor 8 0 U S 115 metric Glass bulb fluid temperature...

Page 2: ...ature rated sprinkler Accessories Sprinkler Wrenches see Figure 1 A Installer Wrench Part No 22055 available since 2017 B Cabinet Wrench Part No 20901M B available since 2017 C Recessed Socket Wrench...

Page 3: ...55 F 68 C 175 F 79 C and 200 F 93 C C 155 F 68 C 175 F 79 C 200 F 93 C and 286 F 141 C D 155 F 68 C 175 F 79 C and 200 F 93 C Approved Finishes 1 Brass Chrome White Polyester 3 4 Black Polyester 3 4 a...

Page 4: ...applicable DESIGN CRITERIA FM FM Approval Requirements The Viking VK3522 Quick Response Pendent Sprinkler is FM Approved as quick response Non Storage Pendent sprinkler as indicated in the FM Approval...

Page 5: ...3 Recessed Installation with Recessed Socket Wrench A 1 2 ratchet is required not available from Viking Figure 4 Recessed Installation with standard Installer s Wrench 2 Carefully slide the wrench sid...

Page 6: ...3 Thread On Recessed Escutcheon E 3 and NP 3 Outer rings have larger diameters Max 1 7 16 37 mm Max 1 3 4 44 mm Min 13 16 21 mm Min 15 16 24 mm Ceiling opening size Minimum 2 5 16 59 mm Maximum 2 1 2...

Page 7: ...tall 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 fitti...

Page 8: ...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 sprinkle...

Page 9: ...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 sprinkle...

Page 10: ...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...

Page 11: ...readings to be expected In addition recognized installation rules may require a higher temperature classifica tion depending upon sprinkler location occupancy classification commodity classification...

Page 12: ...y 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...

Page 13: ...ENANCE 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 C...

Page 14: ...e sprinkler technical data page Never install any glass bulb sprinkler if the bulb is cracked or if there is a loss of liquid from the bulb A small air bubble should be present in the glass bulb Any s...

Page 15: ...ctile iron or Nibco CPVC threaded tee fittings for wet systems that meet the dimensional requirements of ANSI B16 3 Class 150 or cast iron threaded tee fittings that meet the dimensional requirements...

Page 16: ...her To remove caps from frame style sprinklers turn the caps slightly and pull them off the sprinklers SPRINKLER CAPS OR BULB SHIELDS MUST BE REMOVED FROM SPRINKLERS BEFORE PLACING THE SYSTEM IN SERVI...

Page 17: ...rior to removing the system from service notify all Authorities Having Jurisdiction Consideration should be given to employment of a fire patrol in the affected area 1 Remove the system from service d...

Page 18: ...tion 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 s...

Page 19: ...render the sprinkler inoperative and will automatically nullify the approval and any guarantee made by The Viking Corporation Refer to the Authority Having Jurisdiction prior to installation 2 GENERA...

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