Monitors Vidar |
Discharge Devices

Description

Monitors are fixed fire suppression discharge devices used in the application of firefighting water or foam solution to a specific area or risk. Monitors are an effective way of covering large areas of application. Manual or oscillating monitors are usually part of a fixed deluge or flow control system but can also be supplied locally via hydrant or fire truck hose supplies. Monitors can also be mounted on mobile trailers for greater versatility in challenging fire scenarios. Monitors are commonly used in high risk areas such as flammable liquid storage tank farms, loading racks, incineration facilities, recycling plants, aircraft hangars, helidecks and jetty protection. For further information, please contact Fomtec or refer to the technical documentation. The contents of this publication are subject to modifications without notice.

For further information, please contact Fomtec or refer to the technical documentation. The contents of this publication are subject to modifications without notice

Technical data
Construction features

  • UL Listed flow rates of 250, 350, 500, 750 or 1,000 GPM
  • Available as non-oscillating or oscillating
  • Stainless steel monitor body for enhanced corrosion protection
  • Suitable for use with fresh water, salt water or foam solution
  • Tiller or handwheel control options•2.5” or 3” body with range of inlet flange sizes
  • ANSI 150 or PN16 inlet flanges•Maximum working pressure, UL Listed: 250 psi (17.2 bar)
  • Non-self-inducting or self-inducting nozzle options•NH (NST) or BSP threads
  • Oscillation test feature
  • UL Listed with Fomtec AFFF 3%S C6 foam

See more technical data in the datasheet.

Monitors Vidar | Discharge Devices

Listings and approvals

The Monitor/Nozzle/Oscillation combination is UL Listed as part of a fire extinguishing system with specific foam concentrates. Listed system components can be found at https://iq.ulprospector.com

  • UL Listed GFXX.EX28118 – Foam Monitors
  • Oscillating unit compliant with 2006/42/EC machine directive

Standard design specifications

Working pressure 250 psi (17.2 bar)
Factory test pressure 500 psi (34.4 bar)
Design temperature range -20 °C / +80 °C (-4 °F / 176 °F)
Operating temperature range -10 °C / +60 °C (14 °F / 140 °F)

Scope of delivery

Ensure that all components are complete and in good condition.

Included:
The non-oscillating monitor and selected nozzle are supplied separately (unassembled). The oscillating monitor, selected nozzle and oscillating unit are supplied separately (unassembled). The self-inducting nozzle is supplied with a 7-1/2 ft (2.3 m) long pick-up tube assembly (hose & tube) which is supplied loose. A shut-off valve and sized orifice is supplied with the self-inducting nozzle. It is recommended that this hose length is not changed to ensure optimum performance and listing compliance.

Not included:
Flange bolts, nuts, washers, gaskets for the connection of the monitor/oscillating unit to the system pipework.

Availability

Please contact Fomtec for further information.

See Product variants and Performance data in the datasheet.

Installation

Refer to respective requirements, according to the relevant standards for installation. If applicable, refer to FM Global Property Loss Prevention Datasheet 4-12 for specific test and commissioning criteria. In addition, the “Authority Having Jurisdiction” (AHJ) may have additional maintenance, testing and inspection requirements that must be followed.

Warning: Monitors are designed to work under pressure and should only be installed and operated by trained personnel with the appropriate permission and supervision. The correct operation of this monitor has been tested up to a flowing pressure of 250 psi (17.2 bar). However, consideration should be given to the actual usable pressure based on site conditions, operator competence and the integrity of the installation structure. For the appropriate operation guidance, please refer to the instructions in our Operation & Maintenance manual.

Operation

For manufacturer’s recommendations and requirements, please refer to Operation & Maintenance Manual TM2.3.5.1

The non-oscillating (manual) tiller or handwheel operated monitor:

This is a local discharge device used in fixed or mobile firefighting protection systems. These systems can be of the automatic or manually activated deluge/flow control type or a manually operated mobile trailer for example. The local control feature gives the possibility of controlling the water or water/foam discharge by adjusting its horizontal or vertical angle via the tiller or handwheel control. The equipped nozzle can be adjusted to give various stream pattern shapes – from full jet to fog type. All these controls are intended to achieve the highest efficiency in controlling and suppressing a fire or in cooling down hot surfaces exposed to fire.

The monitor is composed by three main parts:

  • A lower body, rigidly connected through a flanged connection to the system’s supply piping network
  • An intermediate body containing the two rotating joints– this section being the one rotating horizontally
  • A top terminal section which is connected to the nozzle (or branch pipe). This terminal section rotates horizontally together with the intermediate body and independently of it, it can also rotate vertically

The oscillating tiller or handwheel monitor:

This has all the features mentioned under 9.1, but also gives the possibility of operation without human intervention in fixed systems. This is particularly useful in dangerous areas, difficult to access areas or in applications where continuous operator availability cannot be guaranteed. The oscillating unit is a device which enables a continuous movement on the horizontal plane to the monitor installed on it. The rotation motion is generated by a hydraulic turbine fed by the same water/foam solution flow going to the discharge device at the end of the monitor. The turbine is combined with a reduction gear system and an inverting gear. The inverting gear changes the movement direction when the unit reaches one of the stops. These stops are field adjustable so the range of oscillation can be adjusted freely between 15° to 340°. If only one stop is used, the total oscillation is approximately 355°. If both the stops are removed, the rotation of 360° continuously is possible. The oscillating unit can also be purchased separately for retrospective fitting to existing monitor installations. The required oscillating angles must be site configured.

Guarantee

For details of warranty, contact Fomtec directly.

Inspection, tests and maintenance

Notice: The owner is responsible for maintaining the fire protection system and devices in proper operating condition.

Warning: Any system maintenance or testing that involves placing a control valve or detection system out of service may eliminate the fire protection capabilities of that system. Prior to proceeding, notify all Authorities Having Jurisdiction. Consideration should be given to employment of a fire patrol in the affected area.

Refer to respective requirements, according to the relevant standards for Inspection, Testing and Maintenance. If applicable, refer to FM Global Property Loss Prevention Datasheet 4-12 for specific test and commissioning criteria. In addition, the “Authority Having Jurisdiction” (AHJ) may have additional maintenance, testing and inspection requirements that must be followed. For manufacturer’s recommendations and requirements, please refer to Operation & Maintenance Manual TM2.3.5.1

Disposal

At end of use the product described here should be disposed of via the national recycling system. Upon request the manufacturer can take back and properly dispose of the electrical equipment and electronic devices.

Accessories and spare parts

Contact Fomtec for further informationFor manufacturer’s recommendations and requirements, please refer to Operation & Maintenance Manual TM2.3.5.1

Declaration of conformity

If required.