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Victaulic FireLock FL-SA/BB Manual Download Page 12

46.03   

16398 Rev B   Updated 04/2021      © 2021 Victaulic Company. All rights reserved.

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5.0  PERFORMANCE (CONTINUED)

Sprinkler Layout – Under-Hip Criteria: Framing Members Parallel To Roof Slope

Sprinkler Model

•  FL-SA/DS (FL-SA/GAP @ apex)

Flow Rate

•  20 gpm

Distance Between Sprinklers

•  Minimum 6 ft
•  Maximum 8 ft

Distance From Eave to First Row (measured horizontally)

•  Minimum 5 ft
•  Maximum 20 ft

Deflector Distance Below Ceiling

•  Install with deflector below bottom of top chord 1" 

minimum to 4" maximum.

Sprinkler at Apex

•  A FL-SA/GAP Sprinkler must be installed between 1 

ft. to 5 ft. down from the intersection of the ridgeline 
and hip lines (Apex)

Sprinklers Adjacent To Hip Line

•  All FL-SA/GAP Sprinklers directly adjacent to hip 

line shall be 1 ft. to 3 ft. from hip line (as measured 
perpendicular to hip line) 

Installation

•  Ensure that the sprinkler is installed with the 

deflector parallel to the sloped roof above Sprinklers 
must be installed with the frame arms perpendicular 
to the roof slope (see Figure 4).

•  For obstruction criteria, see Obstruction section 

within this data sheet.

•  When installed under a flat sloped ceiling 

(noncombustible insulation filled joist channels), 
maximum deflector to ceiling distance is the same 
as maximum distance below bottom of top chord. 
Distance to be measured to bottom of Insulation.

Hydraulic Calculations

•  See Hydraulic Design Section

 

FIGURE 13: UNDER-HIP LAYOUT CRITERIA

FRAMING MEMBERS PARALLEL TO ROOF SLOPE USING FL-SA/DS

NOTE

•  If a flat sloped ceiling is present utilizing non combustible insulation, the insulation must completely fill the pockets 

between the joists, and the insulation must be secured in place with metal wire netting or equivalent. The metal 
wire netting is intended to hold the insulation in place should the insulation become wetted by the operation of the 
sprinkler. Attic sprinklers have not been evaluated for use with spray foam insulation.

MODEL FL-SA/DS

12

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Summary of Contents for FireLock FL-SA/BB

Page 1: ... section 2 0 1 For K Factor when pressure is measured in bar multiply S I units by 10 0 2 0 CERTIFICATION LISTINGS Sprinkler Model SIN Nominal K Factor Listing Agency Approved Temperature Ratings Area of Use Maximum Roof Span Roof Pitch Imperial ft BB46 V8122 8 0 cULus 200 F 93 C RIDGE GABLE 60 4 12 to less than 7 12 BB46 GAP V8122 V5623 8 0 5 6 cULus 200 F 93 C RIDGE GABLE and GAP at EAVE 84 4 12...

Page 2: ...inal Diameter 3 0 mm Load Screw Brass Pip Cap Brass Spring Seal Assembly PTFE coated Beryllium nickel alloy Frame Brass Lodgement Spring Stainless steel Installation Wrench Ductile iron Sprinkler Frame Finishes Plain brass NOTE For cabinets and other accessories refer to separate sheet 4 0 DIMENSIONS FL SA GAP FL SA DS FL SA BB 2 victaulic com ...

Page 3: ...their velocity and tend to travel along the ridgeline In a true gable with an apex and sloped ceiling on both sides the hot gasses tend to run up one side of the gable roof and partly down the other section This decreases the velocity of the gasses running along the gable section Ensure the spacing rules are followed in accordance with Figure 11 Under Hip Areas With Hip areas the important feature...

Page 4: ...is data sheet See Figure 9 for detailed layout criteria TRUSS MEMBERS MUST BE PARALLEL WITH DIRECTION OF THROW OF FL SA BB SPRINKLERS FIGURE 5A Gable Style Roof Option 2 FL SA BB Sprinklers And FL SA GAP Sprinklers Adjacent This option utilizes the FL SA BB sprinklers at the Gable Peak and FL SA GAP sprinklers at the eave areas With this option a maximum total span of 84 ft can be achieved The FL ...

Page 5: ...s at the peak is 16 ft or 30 ft measured horizontally from the sprinkler to eave See Figure 11A and Figure 11B for detailed sprinkler layout criteria Single Slope Roof Option 2 FL SA DS Sprinklers at the Highpoint and Downslope When utilizing this option Model FL SA DS sprinklers are used to protect the entire width of the attic space from the eave to the vertical barrier of the single slope The s...

Page 6: ...er the hip roof consists of stepdown hip trusses running perpendicular to the slope in conjuction with jack trusses near the eave See Figure 12 for detailed layout criteria Under Hip Layout Option 2 Under Hip Layout Option Using FL SA GAP Sprinklers or Using FL SA DS Sprinklers When the framing runs parallel to the slope of the hip forming a 90 degree intersection at the hip rafter either Model FL...

Page 7: ... sprinklers are used to protect the section of the attic space adjacent to the HIP area See Figure 15 for detailed layout criteria Adjacent Hip Layout Option 2 FL SA GAP Sprinklers Only When utilizing this option Model FL SA GAP sprinklers are used to protect the section of the attic space adjacent to the HIP area See Figure 16 for detailed layout criteria FIGURE 8 ADJACENT HIP PROTECTION OPTIONS ...

Page 8: ...B sprinkler to cover is 60 ft wide attic Sprinklers must be installed with the frame arms perpendicular to the trusses A minimum of 6 must be kept from the sprinkler and the lateral face of any truss see Figure 28 For obstruction criteria see Obstruction section within this data sheet Minimum lateral distance from FL SA BB and FL SA GAP is 6 ft Minimum lateral distance from FL SA BB and FL SA DS i...

Page 9: ...Centerline of sprinkler must be a minimum of 6 laterally from face of truss See Figure 28 Must be offset at least one channel laterally from any upslope sprinkler Sprinklers must be installed with the frame arms perpendicular to the roof slope For obstruction criteria see Obstruction section within this data sheet When installed under a flat sloped ceiling noncombustible insulation filled joist ch...

Page 10: ...be offset at least one channel laterally from each other Sprinklers must be installed with the frame arms perpendicular to the roof slope See Figure 35 For obstruction criteria see Obstruction section within this data sheet When installed under a flat sloped ceiling noncombustible insulation filled joist channels maximum deflector to ceiling distance is the same as maximum distance below bottom of...

Page 11: ...ne Installation Ensure that the sprinkler is installed with the deflector parallel to the sloped roof above Sprinklers must be installed with the frame arms perpendicular to the roof slope see Figure 35 When installed under a flat sloped ceiling noncombustible insulation filled joist channels maximum deflector to ceiling distance is the same as maximum distance below bottom of top chord Distance t...

Page 12: ...flector parallel to the sloped roof above Sprinklers must be installed with the frame arms perpendicular to the roof slope see Figure 4 For obstruction criteria see Obstruction section within this data sheet When installed under a flat sloped ceiling noncombustible insulation filled joist channels maximum deflector to ceiling distance is the same as maximum distance below bottom of top chord Dista...

Page 13: ...t from hip line as measured perpendicular to hip line Installation Ensure that the sprinkler is installed with the deflector parallel to the sloped roof above Sprinklers must be installed with the frame arms perpendicular to the roof slope For obstruction criteria see Obstruction section within this data sheet Hydraulic Calculations See Hydraulic Design Section FIGURE 14 UNDER HIP LAYOUT CRITERIA ...

Page 14: ...prinkler is installed with the deflector parallel to the sloped roof above Sprinklers must be installed with the frame arms perpendicular to the roof slope see Figure 35 For obstruction criteria see Obstruction section within this data sheet Hydraulic Calculations See Hydraulic Design Section FIGURE 15 ADJACENT HIP LAYOUT CRITERIA USING FL SA DS SPRINKLERS NOTE If a flat sloped ceiling is present ...

Page 15: ... sprinkler is installed with the deflector parallel to the sloped roof above Sprinklers must be installed with the frame arms perpendicular to the roof slope see Figure 35 For obstruction criteria see Obstruction section within this data sheet Hydraulic Calculations See Hydraulic Design Section FIGURE 16 ADJACENT HIP LAYOUT CRITERIA USING FL SA GAP SPRINKLERS NOTE If a flat sloped ceiling is prese...

Page 16: ...or wet systems only Standard Spray Sprinklers allowed Dormers Open to Attic Space Below More than 4 Sprinklers FL SA BB FL SA GAP and FL SA DS Sprinklers allowed Protection scheme utilized shall be in accordance with this document Standard Spray Sprinklers allowed but required to calculate Attic in accordance with NFPA 13 i e 2535 sq ft for Dry Systems FIGURE 17A DORMER OPEN TO ATTIC SPACE FIGURE ...

Page 17: ... should it not be readily obvious of the hydraulically most demanding area due to non typical pipe layout FL SA BB Minimum Sprinkler Demand The minimum required flow and pressure is shown below in Table 2 The minimum sprinkler demand is dependent on the span that the FL SA BB is covering FL SA GAP and FL SA DS Minimum Sprinkler Demand The minimum required sprinkler demand for the FL SA GAP and FL ...

Page 18: ... is present find the appropriate Figure in the Hydraulic Criteria Section and perform the required calculations NOTE If additional sprinklers are required beyond an obstruction calculate up to 2 additional sprinklers beyond the obstruction HIP may or may not be present HIP may or may not be present FIGURE 18 HYDRAULIC CRITERIA FL SA BB AND OR FL SA GAP AND OR FL SA DS WET SYSTEM FIGURE 19 HYDRAULI...

Page 19: ... sides of the hip line as shown See Figure 20A and Figure 20B Minimum sprinkler flow rate is 20 gpm per sprinkler Calculation 2 Upper Hip Area If there are 4 sprinklers or less in the shaded area Figure 20A Calculate up to the 7 most demanding contiguous sprinklers in the Upper Hip area This may include sprinklers on both sides of the hip line as shown Minimum sprinkler flow rate is 20 gpm per spr...

Page 20: ...ea Figure 21A Calculate up to the 8 most demanding contiguous sprinklers in the Upper Hip area This may include sprinklers on both sides of the hip line as shown See Figure 18B Minimum sprinkler flow rate is 20 gpm per sprinkler If there are more than 4 sprinklers in the shaded area Figure 21B Calculate all sprinklers in the Upper Hip area Minimum sprinkler flow rate is 20 gpm per sprinkler FIGURE...

Page 21: ...inimum sprinkler flow is 20 gpm per sprinkler FL SA GAP FL SA DS FIGURE 22 HYDRAULIC CALCULATIONS REQUIRED FOR RE HIP FRAMING MEMBERS PARALLEL TO SLOPE Hip Calculation FL SA DS Sprinklers Framing Members Parallel to Roof Slope Wet and Dry System Calculation 1 Hip Area Calculate all sprinklers within the hip area shown shaded See Figure 23 Minimum sprinkler flow is 20 gpm per sprinkler FL SA GAP FL...

Page 22: ...ulically demanding 5 contiguous DS sprinklers See Figure 24A Minimum sprinkler flow is 20 gpm per sprinkler 2 Row Protection The following 2 sets of calculations shall be performed Calculation 1 Calculate the most hydraulically demanding 5 contiguous sprinklers consisting of 3 at the high point and 2 on the adjacent slope See Figure 24B Calculation 2 Calculate the most hydraulically demanding 5 co...

Page 23: ...tiguous DS sprinklers See Figure 25A Minimum sprinkler flow is 20 gpm per sprinkler 2 Row Protection The following 2 sets of calculations shall be performed Calculation 1 Calculate the 7 most hydraulically demanding contiguous DS sprinklers located along the high point peak See Figure 25B Calculation 2 Calculate the 7 most hydraulically contiguous DS sprinklers consisting of 5 DS at the hight poin...

Page 24: ... most demanding sprinklers along the hip line See Figure 26B Calculation 2 Calculate the most hydraulically demanding 5 contiguous sprinklers along the high point See Figure 26C Calculation 3 Calculate all sprinklers within the shaded corner Hip area as shown See Figure 26D Minimum sprinkler flow is 20 gpm per sprinkler NOTE The plus 2 most demanding sprinklers along the hip line may vary from tha...

Page 25: ...demanding contiguous DS sprinklers located along the high point peak plus the 2 most demanding sprinklers along the hip line See Figure 27B Calculation 2 Calculate all sprinklers within the shaded corner Hip area as shown See Figure 27C Minimum sprinkler flow is 20 gpm per sprinkler NOTE The plus 2 most demanding sprinklers along the hip line may vary from that shown in the figures depending on ac...

Page 26: ...vertically through the attic These may consist of fireplace flues walls vents stacks etc These obstructions will typically run up to or penetrate the roof deck See Figure 29 for criteria Suspended Horizontal Obstructions Those obstructions which are typically suspended within the attic space itself and run horizontally These obstructions will have clearance over and under the obstruction to allow ...

Page 27: ...ructions FL SA GAP FL SA BB FIGURE 30A FIGURE 31B FL SA BB FIGURE 30B FIGURE 31C FL SA BB FIGURE 30C FIGURE 31D FIGURE 30 SUSPENDED HORIZONTAL OBSTRUCTIONS GL SS BB RE AND DS SPRINKLERS FL SA BB FL SA BB FL SA GAP FIGURE 31A FIGURE 31E FIGURE 31 FL SA BB AND FL SA DS SPRINKLER OBSTRUCTIONS CONT NEXT PAGE 27 victaulic com ...

Page 28: ...the event that all members are above the level of the FL SA BB deflector no obstruction exists to the FL SA BB spray pattern See Figure 32 FL SA BB FIGURE 32 DEFLECTOR COMPLETELY BELOW STIFFENERS AND HORIZONTAL WEB MEMBERS NO OBSTRUCTION In the event that the FL SA BB Deflector is located completely above the stiffeners and horizontal web members the parameters of Figure 33 as appropriate must be ...

Page 29: ... be oriented correctly as follows Series FL SA BB Sprinklers At horizontal ridge peak installed in the upright vertical position with deflector parallel to the ceiling below i e sprinkler centerline perpendicular to the ridgeline The FL SA BB sprinklers must only be installed at ridge lines where the truss framing members run parallel to the long direction of throw of the FL SA BB sprinkler i e sp...

Page 30: ...nsulation with the UL Listed CPVC by consulting the CPVC Manufacturer s literature CPVC At Bottom Chords To Feed Ceiling Sprinklers Below UL Listed CPVC may be used to feed the wet system ceiling sprinklers on the floor below when adhering to the following guidelines See Figure 36 Wet Systems only The area above must be protected by FL SA BB FL SA GAP and or FL SA DS Sprinklers Pipe Running on Top...

Page 31: ...y Specific Application Sprinklers located at a maximum lateral distance of 12 in 304 8 mm from the riser centerline Specific Application Sprinklers are directly mounted on the branchline Specific Application Sprinklers are on arm overs and located at a maximum lateral distance of 6 in 152 4 mm from the branchline centerline Specific Application Sprinklers are on vertical sprigs attached to the bra...

Page 32: ...must be covered or filled with a minimum of 6 in 152 4 mm depth of noncombustible insulation on top of the branchline feeding the sprigs See Figure 39 Insulation is for fire protection purposes It is not freeze protection A minimum lateral distance of 18 in 450 mm is maintained between the CPVC pipe and a heat producing device such as heat pumps fan motors and heat lamps The sprinklers GAP or DS m...

Page 33: ...DF format on our website at www victaulic com Warranty Refer to the Warranty section of the current Price List or contact Victaulic for details Trademarks Victaulic and all other Victaulic marks are the trademarks or registered trademarks of Victaulic Company and or its affiliated entities in the U S and or other countries 6 0 NOTIFICATIONS WARNING Read and understand all instructions before attem...

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