if not all serious oxy-fuel torch and tip malfunctions can be traced back to
either abuse or misuse of the equipment. Abuse is the result of bad
personal work habits or complacency. Misuse is usually a result of not
reading the instructions until something bad happens. The most important
instructions for using oxy-fuel equipment, tip charts, and cylinder capacity
charts are made available for free by any reputable manufacturer of gas
equipment and by your local gas supplier. Both charts are used to help
select the proper safe tip and cylinder size for the application. Picking
the wrong tip or cylinder usually results in poor performance, equipment
failure, or injury.
READ THE CHARTS TWICE – LIGHT THE EQUIPMENT ONCE. Download Harris tip charts for reference here.
The data below, along with oxy-acetylene tip charts, can provide the information needed to determine the minimum cylinder size requirement and/or the maximum tip size recommended for a particular oxy-acetylene application.
1. Determine minimum acetylene cylinder size for a
specific acetylene tip
Acetylene consumption rate from tip chart X 7 = Minimum Cylinder Size in cubic feet.
2. Determine the maximum withdrawal rate and/or the
maximum tip size allowable for a specific size acetylene cylinder
Cylinder size in cubic feet ÷ 7 = Maximum cylinder withdrawal rate in SCFH