Multi-line and progressive systems constantly operate as long as lubricant is fed by the pump. For systems that have more than one lubrication point within a relatively short distance, a pure multi-line system is not economical. Additionally, pure multi-line systems are not easily monitored. As a result, progressive systems or combined progressive/ multi-line systems often provide the best solution. The high-precision SSV progressive metering device divides the lubricant input, without a reduction in volume, into desired quantities.
