The Water-Powered Oscillating Monitor assemblies are designed to automatically oscillate over a preset arc upon system activation, allowing discharge over a wide design area without manual intervention or the use of electrical power. This device is intended for use in firefighting foam systems designed in accordance with NFPA 11, NFPA 409, and/or NFPA 418, typically found in high risk areas such as tank farm facilities, refineries, aircraft hangars, and heliports.
The CHEMGUARD COM-HD water-powered oscillating unit is designed for use with any 3 in. water way manual monitor equipped with a standard 4 in. ANSI Class 150 flange inlet connection. When the monitor is connected to the oscillating unit, the monitor operates as an automatic water-powered oscillating monitor.
The heavy duty stainless steel swivel bearing and all stainless steel design of the body provide exceptional durability and corrosion-resistance for applications requiring long, continuous or repeated use in normal and harsh environments.
The innovative swivel bearing design (patent pending) allows for easy field replacement of only the bearing, in the unlikely event that the bearing wears out or is damaged through misuse or improper maintenance.
A water drive wheel connected to a double reduction gearbox drives the oscillating monitor. To operate the drive wheel, a small flow, not exceeding 13 gpm at maximum recommended oscillation speed, is diverted from the monitor inlet. The monitor requires no external wiring or hydraulic control for operation. The vertical angle of elevation and horizontal arc of oscillation is field adjustable and can be set and locked in position. The monitor can be set to oscillate over a range of 0° to 120° and the location of the oscillation arc may be set anywhere within the 360° field of operation. Elevation range of the unit is between 65° and -20°.