FIRE-EXTINGUISHER NOZZLE

摘要

A nozzle includes a housing defining a fluid passage (26). A member (14) is positioned to block the fluid passage when the nozzle is not spraying fluid. A retainer (16) attached to the housing retains the member in the closed position. The surface of the housing has one or more marks (48). The number of marks indicates the spray profile produced by the nozzle. The member is disposed within the fluid passage and bursts under the flow of fluid.