Drums vs Portable Tanks

Comparison Criteria	DRUM	PORTABLE TANK
Returnable	Typically Not	Yes
Pressure Design Standard	None!	ASME &DOT 51/IM 1
Construction Material	Lined Steel	Stainless Steel 304
Fork Lift Ramming 5mph	Fails	Passes
Gun Fire Resistant	No	Yes
Capacity	55 gallons	250 gallons/946 liters
Fire Exposure Reaction	Explodes!!!	Safety Relieves
Test & Safety Relief Press.	Fails between 15-30 psig	150psig Design & 100 psi Relief
Top & Bottom Outlets	None - Screwed Bungs Top	None - Dripless Connections Top
Internal Dip Leg With Well	No	Yes
Dripless Connections	None	Yes - Swagelok
Remaining Heel	1 to 3 Gallons	None
Operator Exposure	Yes, must open bungs	None
Level Gauge	No	Yes
Zero Discharge	No	Yes

Portable tanks have been in service for over ten years and have accumulated over 400,000 operating days or 9,600,000 hrs without an incident!