How should propane cylinders be secured during storage or transport?

• A. Lying on their side with caps off
• B. Upright and secured to prevent tipping or rolling; valve caps kept on
• C. Suspended from a rope
• D. In a locked cabinet with the valve open

Answer: (B)

The key idea is stability and valve protection. Propane cylinders should be kept upright and secured so they cannot tip or roll, and the valve caps should stay on when the cylinders aren’t connected. Keeping the cylinder upright prevents liquid propane from reaching the valve and helps the relief device function properly, while securing the cylinder stops it from shifting and potentially damaging the valve or causing a leak during storage or transport. The valve cap protects the valve stem from impact, dirt, and accidental opening.

Other setups aren’t safe: lying on the side with the caps removed risks valve damage and leaks; suspending a cylinder from rope is unstable and could cause it to swing or fall; and a cabinet with the valve open would allow gas to vent, creating a dangerous fire or explosion hazard.