A Cup Lub pump is a pump with a cup on the top of the fluid section filled with lubricant.
This liquid lubricant must be poured into the cup located in the upper part of the hydraulic section to insure constant piston lubrication. This liquid must not be volatile and must dissolve the paint film adhering to the piston and must be compatible with the material being pumped.
because the lubricant avoids any paint drying on the piston which could destroy the seal packing.
with water-based or solvent-based material by using specific lubricant (refer to the catalogue).
for easy maintenance plan.