What type of protection should cylinders of 1,000 lbs water capacity or less have against physical damage?

Cylinders with a water capacity of 1,000 lbs or less should have a ventilated cap or collar to protect against physical damage. This type of protection is specifically designed to safeguard the cylinder while still allowing for proper ventilation. Ventilation is crucial because it allows any accumulated gases to disperse, which is vital for safety, particularly in the event of a leak.

The ventilated design minimizes the risk of pressure buildup while providing a safeguard against minor physical impacts that could compromise the cylinder's integrity. Unlike solid covers, which can trap gases, or plastic casings and rubber coatings that may not offer sufficient structural support or protection from impact, the ventilated cap or collar strikes a balance between safety and functionality, ensuring that the cylinder remains safe for storage and use.