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VK480 - Residential Flat Plate Concealed HSW Sprinkler (K4.0)

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Viking's Freedom° Model VK480 5.8 K-factor residential, flat plate concealed, horizontal sidewall sprinkler delivers the installation advantages of a horizontal sidewall sprinkler fully concealed behind a flat cover plate in a residential application. The VK480 is cULus listed for up to 4.9 x 5.5m coverage areas with water flow and pressure requirements that are competitive with a standard recessed sidewall sprinkler. The optional Electroless Nickel PTFE (ENT) coating has been investigated for installation in corrosive atmospheres and is listed/approved as corrosion resistant.

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Technical Details

Maximum Spacing : 4.9 x 5.5m
Maximum Working Pressure : 175 psi (12 bar)
Minimum Spacing : 2.4m
Model Number : VK480
Occupancy Type : Residential
Response Type : Fast (Residential)
Thread Size : 1/2" NPT (15 mm BSP)

Product Information

Coverage Area (ft / m)	4-6" (102mm-152mm) From Ceiling		6-12" (152mm-305mm) From Ceiling
Coverage Area (ft / m)	Flow (gpm / lpm)	Pressure (psi / kPa)	Flow (gpm / lpm)	Pressure (psi / kPa)
12 x 12 (3.7 x 3.7)	11 (42)*	7.6 (52)	12 (46)**	9.0 (62)
14 x 14 (4.3 x 4.3)	13 (49)*	10.6 (73)	14 (53)**	12.3 (84)
16 x 16 (4.9 x 4.9)	16 (61)*	16.0 (110)	16 (61)**	16.0 (110)
16 x 18 (4.9 x 5.5)	17 (64)*	18.1 (125)	18 (68)**	20.3 (140)

*Centerline of the sprinkler located 4-3/8" (111mm) to 6-3/8" (162mm) below the ceiling.
**Centerline of the sprinkler located 6-3/8" (162mm) to 12-3/8" (314mm) below the ceiling.
***Flows and pressures shown above refer to the 165° temperature rating. Please consult the product technical datasheet for flows and pressures of the 205° temperature rating.