Volumetric Lubrication - Positive Displacement Injector Systems
The volumetric system is based on Positive Displacement Injectors (PDI). A precise, predetermined volume of oil or soft grease is dispensed to each point unaffected by temperature or viscosity of the lubricant. Both electric and pneumatic pumps are available to ensure a discharge up to 500 cc/minute via a range of injectors extending from 15 mm³ to 1000 mm³ per cycle.
Single line lubrication systems are a positive hydraulic method of delivering lubricant, either oil or soft grease under pressure to a group of points from one centrally located pumping unit the pump supplies lubricant to one or more metering valves. The valves are precision measuring devices and deliver an accurate metered volume of lubricant to each point.
Positive displacement injector systems are for low or medium pressure oil or grease lubrication systems. These systems are precise in their lubrication delivery, and some models are adjustable, so a single injector manifold can be used to deliver different amounts of oil or grease to different friction points.
Injectors are alternately activated and deactivated at regular intervals. Oil and fluid grease discharges from the injectors when the system reaches operative pressure.