Dual-line lubrication is often the preferred system for extensive networks, many lubrication points and harsh heavy-duty operating environments.
Dual-line lubrication is commonly used in heavy-duty industrial plants with large lubrication networks, long line runs and many lubrication points.
Often seen in steel, cement, paper and large conveying systems with large lubrication networks.
Pressure levels, distributor placement, medium behaviour and maintenance access play a much bigger role than in compact layouts.
For very large, widely branched plants where hundreds of points must be supplied over long pipe runs with high reliability.
A useful landing connects directly to lubrication pumps and DropsA spare parts.
Two main lines are pressurised alternately through a reversing valve, so at every pressure change a defined dose reaches each point.
The pump pressurises two main lines alternately through a reversing valve.
Distributors deliver their set quantity on line 1, then on the other side after the changeover to line 2.
A defined dose reaches every point reliably over long distances, even at high pressure.
Built for very many points over long distances, with robust grease handling.
For smaller machines, or where a forced, self-monitoring sequence is wanted, a progressive system is usually the better fit.
See industrial central lubrication and the grease pump page for the supply side.
Dual-line lubrication comes into its own on steel and rolling mills, heavy industry and large plant engineering.
Pressure behaviour, distributor layout, service access and monitoring are critical in large networks.