Hilti CP 643N Firestop Collar


The Hilti CP 643N Firestop Collar is a ready to use collar made of galvanized steel with intumescent inserts, primarily designed for firestopping combustible pipes. It has adjustable tabs for simple fastening.

Features & Applications
  • A ready-to-use firestop collar, made of a galvanized steel housing and intumescent inserts for firestopping combustible pipes
  • Quick and easy closure without the use of a tool
  • Adjustable position tabs for simple fastening
  • Low profile for tight installations
Technical Data CP 643N
   
Description Pipe outside dia (in.) Collar outside dia (in.) Collar Height (in.) No. of hooks & fastening
CP 643-50/1.5"N 1.4–2.0 2.8 0.9 2
CP 643-63/2"N 2.0–2.5 3.4 1.3 2
CP 643-90/3"N 2.6–3.6 4.9 1.7 3
CP 643-110/4"N 3.6–4.5 6.0 1.9 3
CP 643-160/6"N 6.6 9.8 1.9 4
   
Temperature resistance -40° F to 140° F
(–40° C to 60° C)
   
Intumescent Activation Approx. 392° F (200° C)
   
Expansion ratio (unrestricted) Up to 1:10
 
Approvals
• California State Fire Marshal - No. 4485-1200:131
• City of New York - MEA 630-06-M
 
Tested in accordance with
• UL 1479
• ASTM E 814
• CAN/ULC-S115
Description Package Contents Qty Item No.
CP 643N 50/1.5" Includes 1 collar and 2 fastening hooks 1 00304325
CP 643N 63/2" Includes 1 collar and 2 fastening hooks 1 00304326
CP 643N 90/3" Includes 1 collar and 3 fastening hooks 1 00304328
CP 643N 110/4" Includes 1 collar and 3 fastening hooks 1 00304329
CP 643N 160/6" Includes 1 collar and 4 fastening hooks 1 00304331
CP 643N Firestop Collar Fastening Hooks Use CP 643N collars 30 00304345

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