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Fire Fittings & Accessories
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809 DPL418 877.963.4966 •
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Double Clapper Siamese Connections
A
B
B
A
C
bottom outlet
back outlet
Features:
• double drop clapper with (2) pin lug swivel inlets provides required 500 GPM minimum to
supplement the fire protection as an auxiliary inlet connection to the water supply (250 GPM
minimum per inlet)
• exposed Fire Department Connections (FDC) provide an economical method of satisfying
local fire codes
• maximum operating pressure: 175 PSI at 70°F (21°C)
• finish: -P polished or -C polished chrome plated
• UL listed and FM approved
Dimensions
Dimensions
polished
Outlet Female
NPT Thread
(2) Inlets
Female Thread Branding Cast Brass
Part #
4"
2½" NST(NH)
AutoSprinkler DCS4025F
AutoSprinkler DCS4025F-P
AutoSprinkler DCS4025F-C
StandPipe DCS4025F-SP
No Branding DCS4025F-NB
3" NST(NH) AutoSprinkler DCS4030F
3" NYFD AutoSprinkler DCS4030NYFD
6"
2½" NST(NH) AutoSprinkler DCS6025F
2½" NST(NH) StandPipe DCS6025F-SP
Size A B
4" x 2½" x 2½" 9⅝" 12¼"
6" x 2½" x 2½" 10¼" 11¾"
4" x 3" x 3" 10" 12½"
6" x 3" x 3" 10⅜" 12½"
Outlet Female
NPT Thread
(2) Inlets
Female Thread
Branding Cast Brass
Part #
4"
2½" NST(NH)
AutoSprinkler 90DCS4025F
AutoSprinkler 90DCS4025F-P
AutoSprinkler 90DCS4025F-C
StandPipe 90DCS4025F-SP
No Branding 90DCS4025F-NB
3" NST(NH) AutoSprinkler 90DCS4030F
3" NYFD
AutoSprinkler 90DCS4030NYFD
StandPipe 90DCS4030NYFDSP
6"
2½" NST(NH)
AutoSprinkler 90DCS6025F
StandPipe 90DCS6025F-SP
3" NYFD AutoSprinkler 90DCS6030NYFD
• special threads, branding and finishes are available, consult Dixon® for information
• replacement swivels can be ordered on page 792
Size A B C
4" x 2½" x 2½" 11¾" 9⅝" 7¼"
6" x 2½" x 2½" 11¾" 10¾" 7¼"
4" x 3" x 3" 12½" 10⅛" 7½"
6" x 3" x 3" 12¼" 10⅞" 7¼"
Fire Adapters & Connections