MFC-G Logo

MFC-G Large Diameter FRP/GRE/GRP Firestop Collars

The MFC-G Collar is a factory-manufactured, intumescent device for use as a FRP/GRE/GRP pipe 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 can provide watertightness with a quick application of MFS Sealant. MFC-G 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

Applications
Composite Pipe

Composite 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

  • Fits most pipe sizes from 302 mm to 746 mm
  • Provides watertightness up to 4 bar and gas-tightness up to 1 bar, when sealed with MFS sealant
  • Rapid intumescent expansion under fire conditions quickly seals off the path for fire, gases, and smoke
  • Stainless steel body with mild steel flange for weld-attachment or steel screws
  • Flexible intumescent liner accommodates vibration and will not damage pipe
  • Resistant to aging and weathering
MFC-G Description