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SPRINKLER GENERAL CARE, 

INSTALLATION, AND 

MAINTENANCE GUIDE

TECHNICAL DATA

Page 1 of 4

Form No. F_080614       18.10.11     Rev 16.1.P65

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.

1.  DESCRIPTION - 

STANDARD RESPONSE, QUICK RESPONSE, EXTENDED COVERAGE, AND DRY SPRINKLERS

Viking thermosensitive spray sprinklers consist of a small frame and either a glass bulb or a fusible operating element. Available 

styles include pendent, flush pendent, concealed pendent, upright, horizontal sidewall, vertical sidewall, or conventional, depending 

on the particular sprinkler model selected. 
Viking sprinklers are available with various finishes, temperature ratings, responses, and K-Factors to meet design requirements†. 

Used in conjunction with one of the corrosion-resistant coatings (for frame style sprinklers), the units provide protection against 

many corrosive environments. In addition, the special Polyester or Teflon

®

 coatings can be used in decorative applications where 

colors are desired.

† Refer to the sprinkler technical data page for available styles, finishes, temperature ratings, responses, and nominal K-Factors for specific sprinkler models. 

2.  LISTINGS AND APPROVALS

Refer to the Approval Charts on the appropriate sprinkler technical data page(s) and/or approval agency listings.

3.  TECHNICAL DATA

Specifications:

Refer to the appropriate sprinkler technical data sheet.

Material Standards:

Refer to the appropriate sprinkler technical data sheet.

4.  INSTALLATION

NOTE: Take care not to over-tighten the sprinkler and/or damage its operating parts! 

Maximum Torque: 

 

1/2” NPT:   14 ft-lbs. (19.0 N-m)        
3/4” NPT:   20 ft-lbs. (27.1 N-m)         
1” NPT:   30 ft-lbs. (40.7 N-m)

A. Care and Handling (also refer to Bulletin - Care and Handling of Sprinklers, Form No. F_091699.)

Sprinklers must be handled with care. They must be stored in a cool, dry place in their original shipping container. Never install 

sprinklers that have been dropped, damaged, or exposed to temperatures exceeding the maximum ambient temperature al-

lowed (refer to the temperature chart on the 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 sprinkler with a 

loss of liquid from the glass bulb or damage to the fusible element should be destroyed immediately. (Note: Installing glass bulb 

sprinklers in direct sunlight (ultraviolet light) may affect the color of the dye used to color code the bulb. This color change does 

not affect the integrity of the bulb.)

Sprinklers must be protected from mechanical damage during storage, transport, handling, and after installation. Sprinklers subject 

to mechanical damage must be protected with an approved sprinkler guard. 

Use only sprinklers listed as corrosion resistant when subject to corrosive environments. When installing corrosion-resistant sprin-

klers, take care not to damage the corrosion-resistant coating. Use only the special wrench designed for installing coated or 

recessed Viking sprinklers (any other wrench may damage the unit).

Concealed sprinklers must be installed in neutral or negative pressure plenums only!

 

Use care when locating sprinklers near fixtures that can generate heat. Do not install sprinklers where they could be exposed to 

temperatures exceeding the maximum recommended ambient temperature for the temperature rating used.

Wet pipe systems must be provided with adequate heat. Sprinklers supplied from dry systems in areas subject to freezing must 

be listed dry sprinklers, upright, or horizontal sidewall sprinklers installed so that water is not trapped. For dry systems, pendent 

sprinklers and sidewall sprinklers installed on return bends are permitted, where the sprinklers, return bend, and branch line 

piping are in an area maintained at or above 40 °F (4 °C).

B. Installation Instructions - Standard Spray Sprinklers

Viking sprinklers are manufactured and tested to meet the rigid requirements of approving agencies. They are designed to be 

installed in accordance with recognized installation standards. Deviation from the standards or any alteration to sprinklers or cover 

plate assemblies after they leave the factory including, but not limited to: painting, plating, coating, or modification, may render them 

inoperative and will automatically nullify the approvals and any guarantee made by The Viking Corporation.

Replaces Form No. F_080614 Rev 16.1

(Added P65 Warning.)

Summary of Contents for VK950

Page 1: ...and 10 as well as obstructed wood truss construction see Figure 11 When using steel pipe COIN Sprinklers can be applied as a dry system using air or gas as a supervisory medium see Figures 7 11 In certain scenarios draft curtains are NOT required when sprinkler spacing meets either of the following criteria also refer to Design Criteria 14 X 14 4 3 m X 4 3 m for solid wood joists or trusses on edg...

Page 2: ... Spring Sealing Assembly Nickel Alloy coated on both sides with PTFE Tape Screw Brass UNS C36000 Pip Cap and Insert Assembly Copper UNS C11000 and Stainless Steel UNS S30400 Ordering Information Refer to Table 1 4 INSTALLATION Refer to appropriate NFPA Installation Standards 5 OPERATION During a fire condition the heat sensitive liquid in the glass bulb expands causing the glass to shatter releasi...

Page 3: ...red Temperature Rating Sprinkler Base Part No Size 1 Finishes 2 Temperature Ratings4 Classification Intermediate NPT Inch Description Suffix Nominal Rating Bulb Color Max Ambient Ceiling Temperature1 Suffix 20757 1 2 Brass A 200 F 93 C Green 150 F 65 C E ENT 2 3 JN Corrosion Resistant Coating ENT2 3 Example 20757AE VK950 with Brass Finish and 200 F 93 C Nominal temperature rating This sprinkler is...

Page 4: ...ction The draft curtain must be constructed of material that will not allow heat to escape through or above it this may be 6 mm thick plywood Draft curtains are NOT required when sprinkler spacing is up to 14 X 14 4 3 m X 4 3 m for solid wood joists or trusses on edge see Figure 13B Draft curtains are NOT required when sprinkler spacing is up to 16 X 16 4 9 m X 4 9 m for truss construction on face...

Page 5: ...n or 1 3 the depth of the space measured from the top surface of the ceiling to the bottom of the deck above The CPVC pipe can supply the COIN Sprinklers and the ceiling sprinklers below Use all guidelines and installation instructions as specified by the CPVC pipe manufacturers unless specified differently in this data sheet When using 1 DN25 pipe or larger a hanger must be located at the truss n...

Page 6: ...ervices 877 384 5464 Fax 269 818 1680 Email techsvcs vikingcorp com Visit the Viking website for the latest edition of this technical data page www vikinggroupinc com Figure 4 Open Wood Truss and Open Web Steel Joist Construction with Non Combustible Insulation Filling to Bottom of the Top Cord Using CPVC Pipe Cross Section View Figure 3 Open Wood Truss and Open Web Steel Joist Construction Using ...

Page 7: ...Telephone 269 945 9501 Technical Services 877 384 5464 Fax 269 818 1680 Email techsvcs vikingcorp com Visit the Viking website for the latest edition of this technical data page www vikinggroupinc com Figure 5 Solid Wood or Composite Wood Joist Construction with Non Combustible Insulation Filling Upper Deck Using CPVC Pipe Cross Section View Figure 6 CPVC Piping Installed as a Vertical Riser ...

Page 8: ... space for open wood truss construction to 2000 ft2 185 m2 with their top chord members on face not on edge and 2000 ft2 185 m2 for solid wood joists Insulated top chord spaces on edge confine heat localized detection area to 2000 ft2 185 m2 non insulated top chord spaces on edge confine heat localized area to 1 000 ft2 93 m2 The draft curtain may be constructed of 6 mm thick plywood to prevent he...

Page 9: ...omposite wood joists is 1000 ft2 93 m2 For dry pipe systems 1 The remote area for open wood truss construction or open bar joist construction with the top chord members on face not on edge is 1000 ft2 93 m2 or 6 sprinklers whichever is greater See Table 2 Draft curtains are NOT required when sprinkler spacing is up to 16 X 16 4 9 m X 4 9 m The remote area for this application is the same as above ...

Page 10: ...01 Technical Services 877 384 5464 Fax 269 818 1680 Email techsvcs vikingcorp com Visit the Viking website for the latest edition of this technical data page www vikinggroupinc com Figure 8 Solid Wood or Composite Wood Joist Construction with Non Combustible Insulation Filled Upper Deck Steel Pipe Cross Sectional View Figure 9 Unobstructed Open Wood Truss and Open Steel Bar Joist Steel Pipe Cross ...

Page 11: ...echnical Services 877 384 5464 Fax 269 818 1680 Email techsvcs vikingcorp com Visit the Viking website for the latest edition of this technical data page www vikinggroupinc com Figure 11 Obstructed Wood Truss Construction Steel Pipe Cross Sectional View Figure 10 Open Wood Truss and Open Web Steel Joist Construction with Non Combustible Insulation Filling to Bottom of the Top Cord Using Steel Pipe...

Page 12: ...stings MI 49058 Telephone 269 945 9501 Technical Services 877 384 5464 Fax 269 818 1680 Email techsvcs vikingcorp com Visit the Viking website for the latest edition of this technical data page www vikinggroupinc com Figure 12 Wood Truss Construction with Chords on Face and Non combustible Insulation Provided to the Bottom of the Trusses CPVC and Steel Pipe Cross Section View ...

Page 13: ... Technical Services 877 384 5464 Fax 269 818 1680 Email techsvcs vikingcorp com Visit the Viking website for the latest edition of this technical data page www vikinggroupinc com Figure 13A Trusses on Face Figure 13B Trusses on Edge 1 1 2 38 mm 1 1 2 38 mm On Edge On Face Example of Typical 2x4 Construction Refer to Design Critera Example of Typical 2x4 Construction Refer to Design Critera 3 1 2 8...

Page 14: ...om of Obstruction Y 1 0 300 mm 0 0 mm 1 0 to 1 6 300 mm to 450 mm 0 0 mm 1 6 to 2 0 450 mm to 600 mm 1 25 mm 2 0 to 2 6 600 mm to 750 mm 1 25 mm 2 6 to 3 0 750 mm to 900 mm 1 75 mm 3 0 to 3 6 900 mm to 1 1 m 3 75 mm 3 6 to 4 0 1 1 m to 1 2 m 3 75 mm 4 0 to 4 6 1 2 m to 1 4 m 5 125 mm 4 6 to 5 0 1 4 m to 1 5 m 7 175 mm Distance from Sprinkler to Side of Obstruction X Maximum Allowable Distance of D...

Page 15: ... the 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 sprinkler with a loss of liquid from the glass bulb or damage to the fusible element should be destroyed immediately Note Installing glass bulb sprinklers in direct sunlight ultraviolet light may af...

Page 16: ...uctile 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 of ANSI B16 4 Class 125 even at branch line ends The threaded end of the dry sprinkler is designed to allow the seal to penetrate and extend into the fitting to a predetermined depth This prevents co...

Page 17: ...ther 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 SERVICE Retain a protective cap or shield in the spare sprinkler cabinet 5 For flush style sprinklers the ceiling ring can now be installed onto the sprinkler body Align the ceiling ring with the sprinkle...

Page 18: ...Prior 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 drain all water and relieve all pressure on the piping 2a For frame style sprinklers use the special sprinkler wrench to remove the old sprinkler by turning it counterclockwise to unthread it from the...

Page 19: ...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...

Page 20: ...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...

Page 21: ...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...

Page 22: ...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...

Page 23: ...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 ...

Page 24: ... 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...

Page 25: ...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...

Page 26: ...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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