SAFETY DEVICES FOR OXY/ FUEL BURNERS/ E.A.F.
	SAFETY DEVICES FOR COHERENT JET BURNER           Have you ever been wakened         in the middle of the night at home ...             ... because the E.A.F. had a heavy gas flow back       with ignition of the supply lines of the burners ?             the result :  a heavy lost time accident ...                                              ... very, very expensive                               Reasons for this accident:                     cheap non return check valves                     offering not enough safety