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 compartmentalised fire resistance as outlined in Appendix A II of Resolution A.754(18). 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).
Watertight air dampers for ships are primarily employed in the ventilation systems of various vessels and offshore oil platforms, typically installed on ventilation ducts within watertight bulkheads below the waterline. Should a bulkhead breach occur, sealing air dampers must be closed to prevent water ingress propagating through ventilation ducts to adjacent compartments. This watertight barrier is indispensable for ensuring the safety of vessels and offshore oil platforms
Marine diaphragm-type air dampers are suitable for use on various vessels, oil platforms, and ductwork within onshore ventilation and air conditioning systems, enabling stepless adjustment of airflow. Both ends can be connected to ductwork via flanges or directly fitted to spiral ducting. Compact in size and lightweight, they offer straightforward installation, flexible operation, and reliable performance.
Low-noise ventilation units are suitable for various accommodation and bathroom ventilation systems. Odorous gases within cabins or bathrooms are drawn in by the ventilation unit, undergo noise reduction treatment, and are then pressurised before being delivered to the exhaust system for discharge overboard. These units provide fresh air exchange, pressure equalisation, and noise reduction functions.
Induced ventilation systems are suitable for use in various high-ceilinged spaces such as hangars and vehicle depots. By drawing air from the chamber through a high-pressure fan, which then pressurises it, the air is delivered into the chamber in a jet-like form. This induces the stagnant air surrounding the chamber, thereby enhancing airflow organisation within the space, eliminating ventilation dead zones, and improving overall ventilation efficiency.
