Same value as pump performance value (USDA Forest Service standard).

Filling pump with water when pump is taking water not under a pressure head. Necessary for centrifugal pumps.

An output shaft on an engine, transmission, or transfer case of a motorized vehicle that delivers engine power to auxiliary equipment.

This type plastic normally is used for round molded tanks, is not ultraviolet resistant, a poor choice for fire apparatus.

A copolymer plastic, usually black, that is strong, ultraviolet resistant, not effected by chemicals and a good choice for wildland engine water tanks.

Any of various partially crystalline lightweight thermoplastics that are resistant to chemicals and moisture, have good insulating properties, and are used especially in packaging, insulation and sometimes for wildland engine water tanks.

A synthetic material either spun or filament. Can be used in both the warp and filler yarn in fire hose.

Circular yarn woven between longitudinal warp ends that form a pick on one turn of the finished jacket.

The pressure at which a system is operating.

100-hour pump test performed at 85% of maximum hydraulic units corrected to sea level for qualification under applicable USDA Forest Service specification.