**To be discontinued April 2021**

CHEMGUARD Water-Powered Oscillating Monitors 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. These are intended for use in firefighting foam systems according to NFPA 11, NFPA 409, and/or NFPA 418, typically found in high risk areas such as tank farm facilities, refineries, aircraft hangars, and heliports.

Features

• Models available with standard or self-educting nozzles.
• CWPOM is UL Listed with CMNB350, CMNB500 and CMNB750 monitor nozzles. Refer to the UL Online Certifications Directory for foam concentrate - specific flow and pressure ranges.
• Materials of construction:
  • Brass: Monitor, oscillator body, nozzle
  • Bronze: Water drive wheel, speed control valve
  • Stainless Steel: Oscillator housing
• Suitable for use with most foam solutions.
• Arc of oscillation adjustable via six set points
  • 25, 40, 60, 80, 100, and 120 degrees.
• Speed of oscillation is adjustable using the speed adjustment valve. Maximum speed is approximately 30 deg/sec. Speed may vary when switching from water flow to foam solution flow at same valve adjustment setting.
• Manual override capabilities in both horizontal and vertical degree fields.
• Minimum operating pressure 40 psi (2.8 bar).
• Maximum operating pressures as high as 200 psi (14 bar).
• Flow of water/foam solution through water drive wheel:
  • At 50 psi (3.5 bar), 5 gpm (19 Lpm).
  • At 100 psi (7 bar), 8 gpm (30 Lpm).
• Double reduction oil bath gearbox.
• Grease fittings and two rows of stainless steel ball bearings at all rotation joints.
• Single tiller bar for positioning and manual control of the monitor.
• Oscillating monitor equipped with a garden hose test connection intended to allow a functional check of the unit without flowing the system.

Specifications

A water drive wheel connected to a double reduction gearbox drives the oscillating monitor. To operate the drive wheel, a small quantity of flow 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 -40°.