Manless Entry Tank Cleaning

LP Energy Services Group’s Manless Entry Tank Cleaning System provides a safer, more efficient solution for de-sludging and cleaning petroleum and chemical storage tanks without requiring personnel entry into confined spaces.

Using high-velocity liquid jetting technology, the system liquefies and suspends sludge and solids within the tank, allowing materials to be circulated, recovered, or removed safely and efficiently. Because the system operates while the tank remains closed and in service, it significantly reduces safety risks, minimizes downtime, and improves overall project efficiency.

The Manless Entry Tank Cleaning System is particularly effective when liquid levels are above tank manways – conditions that often prevent conventional cleaning methods from being used.

Key Advantages

Unlike traditional roof-mounted cleaning systems, LPESG’s Manless Entry Tank Cleaning System offers several operational and safety benefits:

High-capacity directional nozzles capable of delivering extremely high flow rates
Precise operator control of nozzle positioning and cleaning patterns
Submerged nozzle operation that reduces vapor generation and often eliminates the need for tank inerting
Side-entry installation that removes the need for roof access, crane lifts, and elevated work
Reduced confined-space entry requirements, improving overall personnel safety
Enhanced oil recovery and sludge removal efficiency

System Capacities/Components

The Manless Entry Tank Cleaning System is available in two configurations:

Model	Flow Rate
18-inch System	Approximately 880 m³/hr at 12 bar

Model	Flow Rate
24-inch System	Approximately 1,200 m³/hr at 12 bar

Typical System Includes:

• Manless Entry Tank Cleaning assembly
• Filter pot
• Pump package
• Large-diameter circulation hoses
• Hydraulic hand pump
• Directional nozzle system

Manless Tank Cleaning Service

How It Works

The Manless Entry Tank Cleaning System operates by recirculating crude oil or cutter stock through high-velocity directional nozzles. The resulting jet streams break apart sludge deposits and suspend solids within the liquid phase, allowing them to be:

Removed with tank contents during transfer operations, or

Processed through an oil recovery system for product reclamation

Typical Operating Procedure

Position all nozzles in the same direction at startup.
Incrementally adjust nozzle angles over time.
Sweep nozzle patterns back and forth to fluidize accumulated sludge deposits.
Align nozzles to generate continuous rotational flow throughout the tank.

Throughout the cleaning process, thermal imaging technology is used to identify sludge accumulation, monitor circulation effectiveness, and optimize cleaning performance.

Why LPESG's Manless Entry Tank Cleaning System?

The Manless Entry Tank Cleaning System delivers a safer, more controlled, and highly effective approach to storage tank cleaning and oil recovery. By minimizing confined-space entry, reducing operational disruption, and maximizing sludge removal efficiency, operators can improve safety performance while lowering overall cleaning costs.

Benefits Include:

Reduced personnel exposure to hazardous confined-space environments
Increased recovery of usable hydrocarbons
Lower waste handling and disposal costs
Reduced downtime and operational interruption
Improved cleaning efficiency for large-diameter storage tanks
Enhanced project safety and regulatory compliance

Whether supporting routine maintenance, tank recovery projects, or major turnaround activities, LPESG’s Manless Entry Tank Cleaning System helps operators maximize asset performance while minimizing risk and cost.