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Residential Sprinklers

VK472 - Residential Pendent Sprinkler (K5.8)View larger

VK472 - Residential Pendent Sprinkler (K5.8)

Viking's Freedom® Model VK472 Residential Pendent Sprinkler has a 8.4 K-factor and is cULus listed for up to 6.1 x 6.1m coverage areas. With this larger K-factor, the VK472 can deliver the higher water densities required for an NFPA 13 residential system 0.1ft2 at lower starting pressures. Also, the 13mm NPT thread size allows for installation with a less expensive 13mm CPVC head adapter, rather than a 19mm adapter. The Electroless Nickel PTFE (ENT) coating has been investigated for installation in corrosive atmospheres and is UL Listed as corrosion resistant.

Viking's Freedom® Model VK472 Residential Pendent Sprinkler has a 8.4 K-factor and is cULus listed for up to 6.1 x 6.1m coverage areas. With this larger K-factor, the VK472 can deliver the higher water densities required for an NFPA 13 residential system 0.1ft2 at lower starting pressures. Also, the 13mm NPT thread size allows for installation with a less expensive 13mm CPVC head adapter, rather than a 19mm adapter. The Electroless Nickel PTFE (ENT) coating has been investigated for installation in corrosive atmospheres and is UL Listed as corrosion resistant.

Technical Details

  • Maximum Spacing : 6.1 x 6.1m
  • Maximum Working Pressure : 175 psi (12 bar)
  • Minimum Spacing : 2.4m
  • Model Number : VK472
  • Occupancy Type : Residential
  • Response Type : Fast (Residential)
  • Thread Size : 1/2" NPT (15 mm BSP)

Product Information

Viking's Freedom® Model VK472 Residential Pendent Sprinkler has a 8.4 K-factor and is cULus listed for up to 6.1 x 6.1m coverage areas. With this larger K-factor, the VK472 can deliver the higher water densities required for an NFPA 13 residential system 0.1ft2 at lower starting pressures. Also, the 13mm NPT thread size allows for installation with a less expensive 13mm CPVC head adapter, rather than a 19mm adapter. The Electroless Nickel PTFE (ENT) coating has been investigated for installation in corrosive atmospheres and is UL Listed as corrosion resistant.

Coverage Area (ft / m)Horizontal Ceiling
Flow (gpm / lpm)Pressure (psi / kPa)
12 x 12 (3.7 x 3.7)16 (61)7.6 (52)
14 x 14 (4.3 x 4.3)16 (61)7.6 (52)
16 x 16 (4.9 x 4.9)16 (61)7.6 (52)
18 x 18 (5.5 x 5.5)17 (64)8.6 (59)
20 x 20 (6.1 x 6.1)21 (80)13.1 (90)

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