Water Tank Capacity (litres)- 2000
Water Tank Material- Mild Steel
Requirements for Water Tank (Clause 4*3 of IS 10460)
1. Tank sheet is to be a minimum of 3 mm in thickness. If material is liable to corrode, it shall be treated for anti-corrosion with epoxy paint consisting of one coat of primer and two coats of finish after sand blasting of inside surface and shall be suitably baffled to prevent surge when the vehicle is braking, accelerating or cornering.
2. Tank shall be mounted, ensuring proper load distribution on the axles.
3. The tank shall be fitted with two filling orifices, a drain cock, a manhole, and a cleaning hole. The filling orifice shall be of not less than 250 mm diameter and shall be fitted with a manhole cover of 45 cm diameter minimum and a filler cap clearly marked ‘water’. A 63 mm instantaneous hydrant connection, incorporating a strainer, shall be provided close to the pump panel control for filling the tank through 75 mm diameter pipe or feeding the hose reel equipment. 4. A 100 mm diameter pipeline shall be taken from the tank to the suction inlet of the pump, incorporating a 100 mm quick-action spherical-type valve. Separate valve(s) for performing different functions shall be provided to control the flow of water. Drain plugs or cocks shall be provided wherever necessary. 5. A cleaning hole of not less than 25 cm diameter shall be provided at the bottom of the tank, and it shall be fitted with a bolted cover.
6. The tank shall be fitted with a 50 mm diameter overflow pipe.
Hose Reel (Clause 4*4 of IS 10460)One hose reel (IS : 884) shall be provided at the rear of the appliance with 60 m lengths of 20 mm bore hose connected by screw ‘C’ type quick release couplings and terminating with a control branch and 5 mm nozzle. The reel shall be fitted with over brake or locking device.
Requirements for Pump (Clause 4*5 of IS 10460)
1. Pump shall be capable of delivering not less than 1800 l/min of water at a pressure not less than 8.5 kg/cm2
2. The pump shall preferably be made of any suitable alloy, compatible with all types of synthetic and protein foam compound, with stainless steel shaft suitable for use with brakish water.
3. The pump shall preferably be of the single-stage type.
4. The pump shall be run for a period of 4 hours non-stop, delivering the rated output at 7 kgf/cm2 with the lift of 3 m.
Foam Compound Tank Capacity (liters)- 500
Requirements for Foam Compound Tank (Clause 4*7 of IS 10460)
1. The foam compound tank shall be of stainless steel welded construction.
2. The tank shall have a filling orifice of not less than 150 mm diameter with a removable strainer fitted to it.
3. The filler cap shall be clearly marked ‘FOAM’ by pressing, casting, or embossing.
4. The tank shall be suitably baffled to prevent surge while the vehicle is in motion or standing on uneven ground or brakes are applied to the moving appliance.
5. The draw-off tube shall be connected to the foam compound proportionator/inductor and pump, as necessary, and an automatic flow control valve shall be incorporated in it to maintain a constant induction rate of not more than 6 percent with varying foam output.
6. A suitable transfer pump shall be provided for transferring foam compound from drums to the foam compound tank without causing any frothing in the tank.
Foam Monitor (Clause 4*7 of IS 10460)
1. The monitor shall be capable of traversing through 360º in a horizontal plane, elevating from horizontal to 45º and depressing from horizontal to not less than 15º and fully rotating in both directions.
2. The aggregate foam discharge shall be not less than 13500 l/min through a combination of monitor and up to 2 hand lines or 7000 l/min through monitor only.
3. The monitor shall be capable of projecting the foam discharge to an effective distance of not less than 35 m in still air when operated at the designed pressure in a straight jet pattern without dripping.
Hand Lines (Clause 4*7 of IS 10460)
1. Two hand lines, one on either side of the appliance, shall be provided.
2. Each foam-making branch pipe shall be capable of delivering not less than 500 l/min of water foam solution with an expansion of not less than 8 and minimum throw of 25 m when either all the handles are used simultaneously or at least one of them is used in combination with the monitor.
3. The hoses for the hand lines shall have an internal diameter of 63 mm. These shall be of the reinforced rubber-lined or similar type and be in lengths of 30 m each and conform to Type II of IS: 636.
Supplementary Extinguishing Agent (Appendix A)
1. The supplementary agent used for firefighting shall be dry chemical powder.
2. The total quantity of supplementary agent shall not be less than 150 kg of dry powder and shall conform to IS: 4308.
3. The dry powder system shall comprise of two self-contained units, each having a capacity of 75 kg of dry powder.
4. The expellant employed for the dry powder units shall be nitrogen. The capacity of the nitrogen cylinders employed for this purpose shall be adequate to ensure complete discharge of the dry powder contents at a rate of not less than 2.25 kg/s from each units. A well-designed pressure control system shall be provided to regulate the pressure of nitrogen gas and maintain a constant powder discharge pressure throughout the operation of the unit.
5. The dry powder unit shall have a discharge outlet fitted with not less than 22 m of minimum 25 mm bore hose terminating in a trigger control shut-off nozzle, capable of producing either a straight jet or fan-spray pattern of discharge. The range of the jet shall be not less than 12 m. Fire red colour conforming to Shade No. 536 of IS
5. The paint shall conform to IS 2932.
Mandatory Accessories as per clause 6*2 of IS 10460- Fire bell of 250 mm diameter, 2 nos Head lamps, 2 nos Fog lamps, Reversing light, Amber blinkers lights, Trafficators, Wind screen wipers, Tools required for normal routine maintenance, Battery operated siren, Search light, Spot light, Inspection lamp, 2 nos Tail lamps, Rear reflectors, Wind screen-washer, Instrument panel, locker.
Additional Requirements
1. The appliance shall be capable of delivering not less than 1800 l/min of water foam solution converted into foam through a combination of monitor and side lines and not less than 900 l/min of water foam solution converted into foam through the side lines alone when the monitor is not in use or not less than 900 l/min of water converted into foam through the monitor alone.
2. The monitor and the hand lines should employ the self-aspirating type of foam production system, where aeration is done at the branch pipe. The expansion ratio of the foam produced shall not be less than eight times with the use of the foam compound as prescribed in IS: 4989.
Maximum Gross Vehicle Weight including crew, water, and equipment- 18500 kg
Axle Configuration- 4 X 2
Maximum Engine Output / Power (kW) at rated RPM- 150
Vehicle Emission Compliance- BS VI
Performance Parameters (as per clause 2*2 of IS 10460)
1. Maximum speed on level road (fully laden) - 72 km/h
2. Acceleration from a standing start through the gears (fully laden) - 64 km/h in 55 s
3. The appliance shall be capable of being started from rest on a gradient of 1 in 4
4. When travelling at 48 km/h on a level dry surface, the foot brake shall be capable of stopping the vehicle within a distance of 15 m from the point at which the brake is applied. The hand brake shall be capable of holding the fully laden appliance on a dry surface gradient of 1 in 4 when in neutral gear.
Seating Capacity in the cabin (Including driver)- 6
Air Conditioning in Driver Cabin- No