SPRAY NOZZLE WITH ADJUSTABLE ARC SPRAY ELEVATION ANGLE AND FLOW

摘要

An adjustable spray nozzle with adjustable arc of coverage as well as spray elevation angle and flow rate. A very simple adjustable arc of coverage spray nozzle configuration is also disclosed which may be easily assembled for a particular precipitation rate and/or range of coverage at a selected nominal pressure. Also disclosed is a simple fixed arc of coverage spray nozzle with selectable ranges for a particular precipitation rate.

主权项

1. An adjustable spray elevation angle nozzle assembly comprising:
a housing having an inlet attachable to a source of pressurized water and an outlet for dispensing a stream of water; an adjustable flow control element including a moveable spray elevation angle setting member in the path of the stream of water that is axially movable to adjust the elevation angle of the stream; a metering element located upstream of the outlet; and a mechanism coupled to the flow control element and the metering element which adjusts the metering element in conjunction with adjustment of the spray elevation angle setting member to maintain a substantially constant precipitation rate for different spray elevation angles.