MED type-approval certificate MERD0001N3A

Common issues

• Hose fabric perishing or cracking from UV and heat exposure in the hose box
• Coupling thread damage or corrosion on brass/gunmetal fittings
• Internal lining delamination, reducing flow and increasing pressure loss
• Hose box or reel stiff or corroded, delaying deployment in an emergency
• Nozzle mismatched to the coupling standard actually fitted aboard

Inspection checklist

• Visually check the hose for cuts, abrasion, perishing or mildew
• Check couplings for damage or corrosion and correct thread engagement with hydrant and nozzle
• Confirm the hose is correctly flaked or rolled in its box, ready for immediate use
• Pressure test the hose at the required interval
• Check the nozzle jet/spray pattern and shut-off function
• Verify hose length and coupling type match the fire main standard fitted on the vessel

Service intervals

Critical spares

• Replacement hose of the correct length and coupling standard
• Coupling gaskets/washers
• Nozzle matching the coupling type fitted
• Hose reel/box mounting hardware
• Spanner/key matched to the coupling type

Safety

• A hose that fails under pressure during an actual fire is a life-safety failure - the annual pressure test is not optional
• Coupling compatibility across the vessel is safety-critical during an emergency, particularly where shore or sister-ship connections may be needed
• Hose boxes/reels must remain unobstructed and immediately accessible at all times

Class survey

This record reflects a DNV type-approval certificate rather than a distinct product data sheet, so the content above is general SOLAS fire-hose practice, not certificate-specific detail. Fire hoses are checked at Fire Safety Systems surveys; class expects evidence of the annual pressure test and confirmation that hose count, length and coupling type match the approved fire control plan.

Estimated lifetime: Not a running-hour item; fire hoses are normally taken out of service on failing the annual pressure test, on visible damage, or per the manufacturer's stated shelf/service life (commonly around 10 years for rubber-lined canvas hose) - confirm against the hose's own certificate