The Permalaex fire extinguisher is manufactured and approved according to the European standard for fire extinguishers SS EN 3. The container is made of steel and painted with impact-resistant epoxy paint. Inside, they are treated with corrosion-protective polyethylene coating. The valve is made of brass. Carrying handle and trigger are made of lacquered metal. A strong and easily accessible fuse prevents accidental release. The extinguishers are filled with film-forming foam and pressurized with nitrogen gas. The 6-liter extinguisher is filled with a high-performance foam that provides performance class 34A 233B. The charging pressure is monitored with an easy-to-read manometer.
Dafo foam extinguishers have Film-forming foam extinguishes partly by cooling the burning substance and partly by flowing over the fire source and suffocating the fire. Unlike powder, it provides safe protection against re-ignition also in the event of a fire in petrol, oil and other liquids.
Film foam is effective against fires in:
• Fibrous materials such as wood, fabric and paper (fire type A)
• Liquids and plastics (type B)
Foam is not suitable against gas fires or against high voltage equipment.