An oxygen regulator can be used for propane.

• A. True
• B. False
• C. Sometimes with adapters
• D. Only for oxygen

Answer: (B)

Gas regulators are built for specific gases, with materials, seals, and outlet pressures chosen to match that gas’s properties and safety standards. An oxygen regulator is designed to regulate oxygen; propane requires a regulator rated for propane with the correct fittings and typical lower-pressure range for propane torches. Using an oxygen regulator for propane can lead to leaks, improper pressure, regulator malfunctions, and a serious fire or explosion hazard because the system and connections aren’t compatible with hydrocarbon gas. For propane, always use a regulator, hoses, and torches specifically rated for propane.