Dual Line Grease Lubrication System

The Dual Line Grease Lubrication System is a high-pressure centralized solution for large machinery with multiple or distributed grease points. Two main lines alternate pressure through a change-over valve to deliver metered grease for reliable automatic lubrication.

Grease Pump & Reservoir: Supplies pressurized grease from a centralized storage unit.

Change-Over Valve: Alternates pressure between the two main grease lines to complete the lubrication cycle.

Dual-Line Distributors: Meter and distribute grease to multiple lubrication points through branch connections.

Pressure Monitoring: Monitors line pressure to verify pressure build-up and identify abnormal conditions.

Control Unit: Controls lubrication cycles, pump operation and line change-over sequence.

Piping & Fittings: Connect the pump, main lines, distributors and lubrication points according to equipment layout.

Non-Blockage System Architecture: Unlike single-line progressive systems, a single blocked lubrication point in a dual-line system does not cause a total system shutdown. Remaining distributors continue normal operation.

Alternate High-Pressure Cycle: The change-over valve switches line pressure between Line A and Line B, driving the double-acting pistons inside the distributors for continuous cycle delivery.

Adjustable Metering: Individual distributor outlets feature mechanical stroke adjustment screws to vary grease discharge per cycle based on bearing requirements.

Real-Time Pressure Diagnostics: Differential pressure switches installed at line ends detect pressure drop or blockage, sending alarm signals directly to the master controller.

The Dual Line Grease Lubrication System is suitable for equipment with multiple grease points, long distribution lines, or difficult-to-access lubrication locations.

Steel Mills: Continuous casting machines, rolling mills, ladle equipment, and steel conveyors.

Mining Equipment: Crushers, stackers, reclaimers, belt conveyors, and large mining machinery.

Cement Plants: Kilns, mills, clinker conveyors, crushers, and bucket elevators.

Cranes: Overhead cranes, gantry cranes, ship unloaders, and heavy-duty lifting equipment.

Pulp & Paper Mills: Rollers, calenders, dryers, and conveyor systems.

Bulk Material Handling: Belt conveyors, feeders, stackers, and reclaimers.

Component Inspection: Dimensional and hardness checks on high-pressure plungers, valve spools, and distributor blocks.

Hydrostatic Pressure Test: Complete assembly and main lines tested at 1.5× maximum working pressure (600 bar) for 30 minutes with zero leakage.

Distributor Metering Test: Displacement accuracy verified per stroke with an output tolerance controlled within ±3%.

Endurance Cycle Test: Change-over valves subjected to 500 consecutive alternating cycles prior to final packaging.

Electrical Safety: Insulation and PLC functional fault checks conducted according to IEC/EN standards.

Available documentation may include:

Export Packaging: Plywood cases or reinforced cartons for complete systems and components.

Component Protection: Pumps, valves, distributors and electrical parts are securely fixed and protected against impact and moisture.

Parts Packing: Small fittings, connectors and accessories are separately packed and clearly labeled.

Shipping Marks: Product labels, handling marks and customer-specified shipping marks are available.

Export Documents: Commercial invoice, packing list, certificate of origin and technical documents can be provided as required.

Delivery: Lead time is confirmed according to system configuration, customization and order quantity.

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