Self Oscillating Unit (2)

VSO Oscillating Unit – UL

The “VSO” oscillating unit can be added to any of the monitors VMT, VMH, VMW to allow automatic coverage of a fixed area (from 15º to 360º) in a fire condition. This can be beneficial when human (manual) control is not possible or is undesirable due to safety concerns or accessibility. Manual operation by trained personnel is also possible. The requirement for oscillating monitors is detailed in various design standards such as NFPA409, NFPA418 and EN13565-2 for example. The oscillating unit’s movement is driven by a small amount of redirected water/foam solution travelling through the monitor. A water turbine shield is included as standard to direct this water/foam solution downwards. A test feature is included to enable a test of the oscillation function and range without discharging from the monitor.