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MFC-W Watertight Firestop Collars

The MFC-W Collar is a watertight, factory-manufactured, intumescent device for use as a penetration seal in fire-rated bulkheads and decks. It is comprised of a stainless steel body with a mild steel flange for easy weld attachment to the division, and incorporates a rubber grommet which fits snugly around the pipe to ensure watertightness. MFC-W Collars are lined with a molded, intumescent insert which rapidly expands to more than 60 times its original volume, containing fire to the point of origin and restricting the passage of smoke and hot gases.

Test Standards

Tested to 2010 IMO FTP, Annex 1, Part 3

Class A-0 to A-60

Class H-0 to H120 Bulkheads and Decks

Applications
Metal Pipe

Metal Pipe

Plastic Pipe

Plastic Pipe

Properties
Finished Product

Finished Product

Flexible

Flexible

Intumescent

Intumescent

Light Weight

Light Weight

No Expiration

No Expiration

Paintable

Paintable

Smoke Barrier

Smoke Barrier

Water Resistant

Water Resistant

Noise Reduction

Noise Reduction

Watertight

Watertight

Product Details

Features

  • Heavy gauge, chromium rich 316 stainless steel construction
  • Provides watertightness up to 6 bar and gastightness up to 1 bar
  • Solid design requires pipe to be inserted through the watertight grommet
  • Flexible intumescent liner accommodates vibration and will not damage pipe
  • Resistant to aging and weathering
MFC-W Description