When selecting a vent, it is crucial to match the vent's with the specific requirements of your storage tank as outlined by NFPA 30 (Flammable and Combustible Liquids Code).
Many local fire codes and insurance providers require that all tank components be UL-listed to ensure they meet recognized safety benchmarks. Finding UL 242 Compliant Products ul 242
Used for normal "breathing" of the tank as temperature changes or as the tank is filled and emptied. When selecting a vent, it is crucial to
These are often "weighted" to remain closed until a specific pressure or vacuum threshold is reached, helping to reduce evaporative losses of volatile fuels. 2. Key Testing Requirements These are often "weighted" to remain closed until
In the mid-20th century, as home water heaters became common, a hidden danger lurked. The thermostats controlling them were essentially repurposed industrial switches. They worked fine in dry basements, but bathrooms and laundry rooms were different. Here, condensation dripped down walls, humidity fogged mirrors, and splashes were inevitable.
By the 1960s, reports of bathroom electrocutions and exploding tank heaters prompted the U.S. Consumer Product Safety Commission and insurance underwriters to demand a solution. Underwriters Laboratories (UL) answered with , formally titled “Standard for Safety for Immersion-Detected Thermostats and Thermal Cutoffs for Electric Hot Water Heaters.”
You're looking for a review of "UL 242". UL 242 seems to refer to a specific standard or publication by Underwriters Laboratories (UL), an organization that sets safety standards for various products.