A variable flow control high volume long range monitor with different capacity has a casing having a main inlet pipe for receiving water under pressure from a water source and a plurality of hand wheels to adjust the flow of water and foam mixture. The casing has a main rotary joint formed thereon for flow adjustment; adjusted through rack gear and worm gear. The flow adjustment is done while in operation and shutting off the water flow; of monitor is not required. Further, said monitor also comprises a pinion operated through the gear which adjust the throw of the water to the affected area via full jet and/or fog condition by rotating the hand wheel. A rotary motor and transmission drives the spray nozzle assembly. The spray nozzle includes a slidable front section for varying the spray pattern of fluid issuing from the nozzle. The hand wheel is operated through the planetary gear box and which works with the rack to move the pinion in up and down condition. The present invention provides a real time operation without any interruption so as to provide an efficient firefighting solutions. Also it includes manual as well as remote operations.

Brief Description of the drawings:

Fig.l describes a perspective view of the present invention. Detailed Description of the Invention

Unlike the regular variable type water cum foam monitor nozzles, online variable nozzles provides the facility of changing over of the flow from one capacity to another without interrupting the operation. This literally means that one can change the flow rate while the firefighting operation is still going on and there is no need of shutting off the Gate / globe valves to change the flow capacity.

In the event of scarcity of water this type of monitors serves as a perfect solution as the flow capacity can be reduced as desired and mat too without discontinuation of water throw. It is known fact that if we interrupt the water /foam throw while fighting live fire the purpose will defeat as the fire will catches again in absence of continuous water / Foam throw if the same was not ceased perfectly. Therefore this type of monitor serves the best solutions as the flow can be adjusted online. Such flow is managed when the pinion results in sliding of front of the nozzle.

With this type of system adjustable flow control device is provided which is operated through set of gears and planetary gear box. This planetary gear box is operated through hand wheel in manual mode & through remote panel via motor in remote mode. When one will rotate Hand wheel (in manual mode) or rotate motor (in remote mode) attached with planetary gear box, its motion will transferred to Flow controller device (Flow control Reducer) with the help of Flow control gears. This will maintain the desired gap between Nozzle outer & deflector plate due to which desired flow rate can be achieved. The Nozzle is calibrated and marked with flow capacity range. When the flow capacity pointer reaches to the marked position the desired flow can be achieved.

As described in Fig.l Fire monitor nozzle assembly 1 has a casing 2 having a threaded portion 3 at the end which is suitable to monitor body outlet. The base 3 is a portable threaded portion through which firefighting monitor nozzle can be placed on monitor easily. A firefighting monitor nozzle apparatus has a casing 2 having a main inlet pipe for receiving water under pressure from a water source. The casing 2 is fixed on center pipe 4 is connected to the rotary center pipe 5 with a rotary joint and is connected to a rack gear 22 which meshes with a worm 23 which is rotated to adjust the pressure value via hand wheel HI. The worm gear 23 is connected to a hand wheel HI having a handle thereon so that rotating the handle rotates the rack gear 22 to rotate the worm gear 23 to rotate the rotatable center pipe to form a variable size annular opening for the passage of fluid.

The water passes through the main inlet to the casing 3 and the pressure of the same is adjusted via the hand wheel HI as per the requirement. During the operation if need the hand wheel HI is rotated until it reaches the desired position which allows nozzle to discharge rated flow. Further as shown in Fig.l the present monitor also comprising a conversion from Jet to fog pattern using Rack & Pinion assembly that manages the outlet in a full fog condition and/or in a full jet condition as per the requirement. The foam manger pinion assembly comprises a pinion, a rack gear and the hand wheel to work in synchronization which each other. The one end of the movable pinion 6 is keyed on the hub of a gear enclosed in the gear housing. The pinion 6 is operated by a gear and the second end of the pinion is attached with a rack member 7,The gear are operated through the hand wheel so that rotating handle rotates the gear and so the gear moves the pinion in up or down condition. Purmg the operation the portion of the combined pinion and rack member 7 defining the rack 7 is slotted longitudinally to provide longitudinally extending portion, such portion leads to the movement of the pinion 6 in up or down direction to operate the rack 7 to generate full fog and/or full jet condition.

The flexible control of water usage provided by the present invention has particular merit when the water is supplied from mobile thanks, permitting maximum conservation of water when the situation requires only rrimimal flow, yet providing maximum performance should the situation suddenly worsen as well when the fire is at the worst level and it is difficult to have even a short time to change the pressure or flow of the water.

Further, the invention can be operated through the motor as well as automation attached with the handles to perform the task. The present invention also claims all possible variation within the skilled of the person skilled in the art and explains that such variation will be considered as the same invention.

While the invention has been described in its preferred embodiment, it is to be understood that the words which have been used are words of description rather _. .-than limitation and that changes may be made within the purview of the appended claims without departing form the true scope and spirit of the invention in its broader aspects. Other features and advantages of the present invention as disclosed and claimed herein will become apparent to those skilled in the art form the following detailed description in connection with the accompanying diagrammatic drawings.