Description
Corrosion resistant Stainless Steel Monitor Model VARUN 443 is durable manual controlled low profile monitor for fixed installation as well as trailer mounted unit. The monitor is generally used for protection of flammable liquid storage tanks, loading racks, dykes, marine and many other Industrial applications. The VARUN 443 Monitor possesses several design features that provide ease of operation, minimum maintenance and resistance to normally destructive environments. The Monitor is used with fix flow or variable flow nozzle. UL LISTED ®
MAY, 2021 PAGE 2 OF 6 HD 257
HD FIRE PROTECT
PVT. LTD.
INSTALLATION, TESTING &
MAINTENANCE
The monitor must be installed and operated carefully by a trained person, having good knowledge of equipment. Before assembly of the monitor to supply piping, thoroughly flush the piping with water to avoid sand, residue, welding slag or other debris hindering the proper functioning of the monitor. After few initial successful tests, an authorized person must be trained to perform the inspection and testing of the monitor.
The monitor should be ready for use. To achieve this condition, scheduled inspection and maintenance operation should be performed and it must be recorded in the maintenance register book indicating the requirement or recommendation. The recommended maintenance, procedure must be followed as given in the manual and also as per the local authority having jurisdiction. It is recommended to carry out weekly physical inspection of the monitor. The inspection should verify that no damage has taken place to any component and the monitor is ready for use. Carry out functional test
every month for the flow, regular rotation in horizontal and vertical plane for the entire operating range to observe any leakage.
Periodic proper greasing through grease nipple provided on bearing, worm wheel and worm shaft must be ensured. Use water resistant low friction
synthetic grease. Lubrication is required for smooth operation. Periodical flushing of the Nozzle with clean water and movement of moving parts, will allow Nozzle to operate as designed. Each monitor must be operated with full flow in accordance to the guidelines of the organisation having local jurisdiction. The owner is responsible for maintaining the equipment in proper operating condition.
CAUTION
A trained personnel for fire fighting must use the monitor. Appropriate guidance & training must be given to reduce the risk or injury. The nozzle must be fixed to the monitor carefully, the flange bolts must be tightened uniformly. The piping must be able to with stand the horizontal reaction force. Serious injury to personnel and equipment can result from improper installation. When installing monitor it is critical that flange bolts be tightened uniformly to prevent cocking of the monitor relative to the flange or valve. Before flowing water from monitor, check that all personnel are out of stream path and stream direction will not cause avoidable property damage. Application of water or foam on an electrical appliance can cause serious injury.
The water supply to monitor must be increased/ decreased gradually to prevent possible water hammer occurrence. If dust protection cap for nozzle is used, then make sure that cap is removed before starting of monitor. Maximum permissible suction lift is 2.5 meters for self-inducting nozzle.
The elevation difference between monitor and JRC shall not be more than 1.5 meters
