ZEM Volumetric Injector
The injectors type ZEM (direct action) are perfectly adapted for use with volumetric system (PDI) for diverse applications.Their precise delivery and predetermined quantity helps ensure each lubrication point receives the proper amount of lubricant.
ZEM injectors are classic direct action PDIs, reliable and accurate. When pressure builds in the manifold, the piston in the injector moves forwards, discharging a set amount of lubricant to the lubrication point. As the pressure is relieved, a compression spring returns the piston to its original position. This movement recharges the injector (discharge chamber) and the injector is now ready for the next cycle. It is important to note that the lubricating pump used with ZEM series injectors must build pressure in the system to a minimum 15 bars (220psi) to actuate the injector discharge.The recommended operating pressure is 21 bars (300psi).