The CFH marine fire damper complies with the relevant requirements for ship structural fire protection stipulated in the International Convention for the Safety of Life at Sea (SOLAS) and subsequent amendments. It has passed fire resistance tests conducted by the Shanghai Far East Fire Testing Centre in accordance with the requirements of Appendix A II of Resolution A.754(18) of the International Maritime Organisation (IMO) concerning fire-resistant air dampers. These tests were performed in accordance with the fire resistance test procedures for Class "A", "B" and "E" compartments. The damper has been certified by the China Classification Society (CCS) and the European Union (EU). (18) "Recommendations for Fire Test Procedures for Class 'A', 'B' and 'E' Divisions" Appendix A II. They have obtained type approval certificates from classification societies including China (CCS), European Union (EC), United Kingdom (LR), United States (ABS), France (BV), and Japan (NK).

The CFH marine fire damper is widely applicable for air conditioning and ventilation systems requiring fire protection on various vessels and offshore oil platforms.

All marine fire dampers incorporate a 70±20°C fusible link breakaway function.

Marine fire dampers are primarily categorised as follows:

*By interface type: rectangular, circular.

*By control method: manual, electric, pneumatic, electromagnetic, hand-operated pneumatic, etc.

*By number of blades: classified as single-bladed or multi-bladed.

*By installation method: bulkhead-mounted, deck-mounted, grating-mounted.

*By sealing type: airtight, watertight, standard.

*By explosion-proof performance: explosion-proof type, non-explosion-proof type.

*Electric types classified by closing speed: quick-closing type, standard type.

Electrical specifications: AC/DC 24V, AC 220V–230V

Air supply: 0.5–0.8 MPa clean air

Explosion-proof rating: ExdIIBT4/ExdIICT4 (China), ATEX (EU)

Electric closing time: ≤ 20 seconds (standard type), ≤ 2 seconds (quick-closing type)