Which device has a rating of 30 GPM / 100 PSI?

Which device has a rating of 30 GPM / 100 PSI?

• A. Main pump drain
• B. Elkhart 1 inch Booster Line Chief Nozzle
• C. Thelma brakes
• D. Multiversal Deck Gun

Answer: (B)

Understanding nozzle ratings: the flow (GPM) a device delivers depends on the nozzle size and the nozzle pressure (psi). For booster lines, a common combination is 30 gallons per minute at 100 psi. That specific rating matches a small, 1-inch booster-line nozzle designed for quick, steady streams on lighter lines. The Elkhart 1 inch Booster Line Chief Nozzle is a classic example of that rating, making it the best fit for a 30 GPM at 100 PSI rating. The other items aren’t water-delivery nozzles with that rating. A main pump drain is a pump component used for draining water, not for producing a fire stream. Thelma brakes aren’t a firefighting nozzle. A deck gun (monitor) is built for much larger flows and different pressure ranges, so it wouldn’t be described as 30 GPM at 100 psi.

Understanding nozzle ratings: the flow (GPM) a device delivers depends on the nozzle size and the nozzle pressure (psi). For booster lines, a common combination is 30 gallons per minute at 100 psi. That specific rating matches a small, 1-inch booster-line nozzle designed for quick, steady streams on lighter lines. The Elkhart 1 inch Booster Line Chief Nozzle is a classic example of that rating, making it the best fit for a 30 GPM at 100 PSI rating.

The other items aren’t water-delivery nozzles with that rating. A main pump drain is a pump component used for draining water, not for producing a fire stream. Thelma brakes aren’t a firefighting nozzle. A deck gun (monitor) is built for much larger flows and different pressure ranges, so it wouldn’t be described as 30 GPM at 100 psi.