Isuzu 4,000L foam firefighting truck is engineered to combat Class B fires involving flammable liquids (e.g., petroleum, chemicals). Its foam projection system mixes water with fire-suppressing foam at precise ratios, forming an oxygen-blocking blanket to rapidly extinguish liquid fuel blazes.  Equipped with a high-capacity 4,000-liter tank and a high-pressure pump, Isuzu 4,000L foam firefighting truck delivers sustained foam discharge rates up to 4,000 L/min, enabling swift control of expansive fire incidents. Its extended-range monitor nozzle projects foam over 60 meters, ensuring operator safety during refinery, warehouse, or wildfire emergencies.

Operational Guide for Isuzu 4,000L Foam Firefighting Truck: Technical Parameters and Procedures

1. Vehicle Overview
The fire-trucks Isuzu 4,000L foam firefighting truck is engineered for rapid response to Class B (flammable liquids) and Class A (solid combustibles) fires. Built on a heavy-duty Isuzu FVR chassis, it features a 6HK1-TCG61 diesel engine with a power output of 176 kW (240 hp) at 2,200 rpm, generating 981 N·m torque. The chassis complies with Euro V emission standards and includes a 9-speed manual transmission for optimal off-road maneuverability.

2. Firefighting System Specifications

• Water Tank: 4,000-liter capacity, constructed from corrosion-resistant 304 stainless steel with internal baffles for stability.
• Foam Tank: 500-liter polyethylene tank, compatible with AFFF (Aqueous Film-Forming Foam) or AR-AFFF (Alcohol-Resistant) concentrates.
• Proportioning System: Electronically controlled foam induction system with adjustable ratio (1–10%) via a rotary dial on the pump panel.
• Pump Unit: Mid-ship-mounted centrifugal pump (Model NH30), delivering 4,000 L/min at 1.0 MPa pressure. Maximum suction lift: 7 meters.
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3. Discharge Equipment

• Roof-Mounted Monitor: Remote-controlled telescopic monitor with 360° rotation, 70-meter range (water), and 55-meter range (foam). Flow rate adjustable from 100–3,800 L/min.
• Handline Reels: Two 30-meter Class B rubber-lined hoses (Φ65 mm) with adjustable fog/straight stream nozzles (500 L/min max).
• Rear Bumper Reel: 20-meter high-pressure hose (Φ25 mm) for auxiliary operations (200 L/min).
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4. Control and Monitoring Systems

• Pump Panel: Centralized interface with analog pressure gauges, tachometer, and digital foam ratio display. Includes manual override for pump RPM (0–2,500).
• Cabin Display: 7-inch LCD screen for real-time monitoring of water/foam levels, pump status, and engine diagnostics.
• Lighting: Four 500W LED floodlights (360° rotation), two rear warning beacons, and scene lighting compliant with NFPA 1901 standards.
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5. Operational Procedure
Step 1: Pre-Deployment Checks

• Verify water/foam tank levels and inspect hose integrity.
• Ensure pump priming valve is closed and suction strainer unobstructed.

Step 2: Engine and Pump Activation

• Start the chassis engine; engage PTO (Power Take-Off) to activate the pump.
• Gradually increase engine RPM to achieve 0.8 MPa operating pressure.

Step 3: Foam Application

• Select foam ratio (3% for hydrocarbons, 6% for polar solvents).
• Open foam tank valve; confirm ratio via panel indicator.

Step 4: Discharge Control

• For roof monitor: Use joystick to adjust elevation (‑15° to +75°) and flow rate.
• For handlines: Gradually open nozzle valves to prevent pressure surges.

Step 5: Post-Operation

• Flush system with clean water for 10 minutes to remove foam residue.
• Disengage PTO; record operational data in maintenance log.

6. Safety Protocols

• Maintain 5-meter clearance from flames during monitor operation.
• Avoid pump cavitation by ensuring suction lift ≤7 meters.
• Annual hydrostatic testing of tanks and NFPA-certified pump inspections mandatory.

 

Name	Water Foam Tank Fire Truck
Model	PT550PM
Painting	Fire red (RAL 3000)                      (Customer LOGO welcome)
Chassis	Brand	ISUZU
	Chassis Model	ISUZU GIGA 4X
	Engine power	150KW (205HP)
	4X2 Left Hand Drive, Double Cabin
Outline dimension	8150×2500×3600 mm
Gross Vehicle Weight	18000 kg
Number of Seats	1+1+4 (inc. driver)
Fire-extinguishing Agents	Water (L)	5000L
	Foam (L)	500L
	Chemical (L)	Without
Fire pump	Model	XIONGZHEN CB10/40
	Pressure (Mpa)	1.0
	Rate (L/s)	40
Fire Monitor	Model	PL36
	Rate (L/s)	36
	Throw Range(m)	Water ≥ 60, Foam≥ 50
Fire Equipment	Factory standard	Special equipment for optional