World Wide Metric, Inc. - Watertight Marine Firestop Collars

Water-tight, factory-manufactured devices designed for use as a penetration seal in fire-rated bulkheads and decks. Tested according to IMO resolution A.754 (18) FTP (Class A0-A60, B0-B30, and H0-H120 Bulkheads and Decks)

Unit of Measure

Items	STI-MFC16W	STI-MFC20W	STI-MFC25W	STI-MFC32W	STI-MFC40W
Weight	N/A 0.23 kg0.53 lb	N/A 0.27 kg0.61 lb	N/A 0.32 kg0.69 lb	N/A 0.43 kg0.93 lb	N/A 0.51 kg1.09 lb
Features	N/A Tested to IMO A.754 FTP (Class A0-A60, B0-B30, and H0-H120 Bulkheads and Decks) Fits most standard pipe sizes from 16 mm to 324 mm Provides water-tightness up to 4 bar and gas-tightness up to 1 bar 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 Solid design requires pipe to be inserted through the water-tight bushing Flexible intumescent liner accommodates vibration and will not damage pipe Resistant to aging and weathering