This Nigeria HOWO NX septic tanker cleaning truck is a specialized vehicle designed for Nigeria heavy-duty sewage suction operations. Based on the Sinotruk HOWO NX400 chassis, it integrates a 20 cubic meter sewage suction tank and a 2BE-204 water circulation vacuum pump, enabling efficient sewage suction. This truck features self-priming and self-discharging capabilities, a large capacity, convenient transportation, and a powerful vacuum pump with a long suction range, making it suitable for heavy-duty operations such as urban pipe network dredging and septic tank cleaning.

*Nigeria HOWO NX septic tanker cleaning truck* 

◆ Product Technological Parameters:

◆ Chassis:

◆ Upper Structure Sewage Suction System: 

1. Tank Volume: 20 cubic meters, elliptical tank structure with low center of gravity and stable operation.

2. Tank Material: High-quality carbon steel, 6mm thick, with internal baffles, corrosion-resistant and wear-resistant, and firmly welded overall.

3. Vacuum Pump: 2BE-204 water circulation vacuum pump, suction speed 21m³/min, high vacuum degree, strong self-priming capability.

4. Safety Protection: Equipped with an anti-overflow valve to prevent backflow of media and damage to the vacuum pump, ensuring equipment safety.

5. Auxiliary Components: Integrated water-gas separator, oil-gas separator, hydraulic oil tank, right-side ladder, tank top guardrail, transparent liquid level pipe (real-time monitoring of tank liquid level), tailgate discharge valve, and suction hose.

◆ Hydraulic Operation Functions:

•  Tailgate: Hydraulic locking + hydraulic opening, reliable sealing, smooth unloading

 

•  Tank: Hydraulic lifting and tilting, sufficient tilting angle, thorough and residue-free drainage

 

•  Operation Method: Hydraulic control valve on the driver's side, single-person control, intuitive, safe and efficient operation

 

◆ Working Principle:

The core working principle of a vacuum truck is based on the principle of vacuum negative pressure, using pressure difference to achieve the suction and discharge of waste. Throughout the entire process, both suction and discharge rely on the sealing of the tank.

1. Suction Process: The vehicle's engine drives a vacuum pump at high speed via a power take-off (PTO), forcefully drawing air from the sealed tank, creating a negative pressure by lowering the internal air pressure compared to atmospheric pressure. Under atmospheric pressure, waste is forced into the tank through the suction pipe.

2. Discharge Process: After operation, the airflow direction is changed by operating the four-way reversing valve. Firstly, the tank is raised and the tailgate opens, allowing outside air to enter and release the vacuum, causing the waste to flow out by gravity. Secondly, compressed air is injected into the tank to create a pressure higher than atmospheric pressure, pressurizing and discharging the waste.