Oil tank in hydraulic installations is checked for cleanliness before they leave the factory and all apertures are tightly sealed. Due to unfavorable circumstances during transportation from the factory to the place of installation and any intermediate storage that might become necessary, it is possible for oil tanks oil tanks to become contaminated with water, dust, etc. Before it is time to commission the installation.
If extended intermediate storage (i.e. for more than six months) is expected from the outset, proper corrosion protection may make it necessary to seal the return lines and suction lines inside the oil tank in order to prevent drainage.
It is essential for the fluid tank of an installation to be inspected and cleaned if necessary before it is filled with fluid (do not use lining cleaning cloths)