Flash arresters

Exact design criteria on equipment for handling acetylene is not readily available because of the great number of factors involved. However, recommendations have been made concerning the equipment, piping, compressors, flash arresters, and proper materials (69,92—94). 

Inspections Flash Arresters, Relief Devices Hazards Manual Toxicity, Flammability, Reactivity,... 

Storage tanks Dikes Emergency valves Inspections Procedures Specifications Limitations Design separation, inerting, materials of construction Capacity and drainage Remote control hazardous materials Flash arresters and relief devices Contamination prevention, analysis Chemical, physical and quality stability Temperature, time and quantity... 

Screw on the female side of one of the flash arresters to the 90° male exit elbow of the coalescer. 

Thread seal, Teflon tape the male end of the other flash arrester. Screw and tighten this into the female outlet port of the filter. 

While approved metal safety cans are still acceptable (5 gallons or less and equipped with a spring-closing lid and spout cover, a means to relieve internal pressure, and a flash arresting screen), OSHA will recognize that various nationally recognized testing labs have also approved the use of acceptable plastic safety cans for flammable liquids. 

DOT approved containers of 5 gallon capacity, not equipped with a spring closing Ud, spout cover, and flash-arresting screen are also acceptable because they sufficiently reduce the risk from fire, spills, and explosions. 

I) Safety can means an approved closed container, of not more than 5 gallons capacity, having a flash-arresting screen, spring-closing lid and spout cover and so designed that it will safely relieve internal pressure when subjected to fire exposure. 

Fuel standard commercially available tanks of acetylene dissolved in acetone tanks should be equipped with flash arresters. 

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