2.2a Cylinder Diagramming

In the laboratory you will obtain an oxygen tank, if available.  Then on a separate piece of paper, beginning with an E cylinder in a secure cart, you will “draw” the cylinder and label the following markings:

A. Manufacturer’s mark
B. Serial number of the cylinder
C. Original hydrostatic testing date
D. DOT specifications mark
E. Retest dates
F. Service pressure of the cylinder
G. Ownership mark
H. Inspector’s mark
I. Elastic expansion (if present)
J. Type of gas
K. All warnings concerning use
L. Statement of purity
M. Manufacturer

Record as many as you can find.

2. Draw and label the following on a separate piece of paper. Show this labeled drawing to your instructor.

A. Diagram and label a PISS connector valve, both external and in cutaway form
B. Gas inlet
C. Gas outlet
D. Derive which controls gas flow from the cylinder
E. Pressure relief device
F. Gas channel
G. PISS connector(s)

3. Draw a cylinder label with the following on a separate piece of paper. Show this drawing to your instructor.

A. Type of gas
B. All warnings concerning use
C. Statement of purity
D. Manufacturer

2.2b Regulator Placement

If you have a new cylinder, you will need to remove the plastic cover over the O2 outlet. After doing so, you will “crack” the tank, which means you will quickly open and close the valve with the tank key to expel a small amount of gas and remove any dirt or debris from the outlet.

Then, turn the regulator screw out adequately to place it on the cylinder, aligning the PISS safety system pins. Tighten the screw and then using the “tank key,” open the tank. If your alignment is correct, you can then see the pressure on the regulator dial. If you hear a leak, reseat the regulator and try again.

2.2c Flowmeters

Obtain a Thorpe Tube flowmeter with an appropriate nipple nut oxygen adapter. Insert the flowmeter in the quick connect system. What is the name of the quick connect you are using?

Connect an oxygen tubing to the flowmeter. Set the flow to 10 lpm.