Varnish contamination is the inevitable by-product of many degradation processes in hydraulic and lubrication systems. The effects of varnish on industrial and manufacturing systems range from the nuisance of minor downtime and routine maintenance to, worst case scenarios, multi-million dollar catastrophic failures of major capital equipment.
Hy-Pro has the solutions for lube oil varnish that include innovative products, ISO 9001 certified U.S.A. based manufacturing plus the technical factory and distributor support necessary to make condition based recommendations and follow them through to implementation and beyond. Donaldson Hy-Pro has advanced media technologies that provide a holistic approach to solve lube oil varnish to prevent premature equipment & servo valve failure, extend useful fluid life and provide reliability of in-service fluids and systems.
Filter element spark discharge is a recognized cause of fluid degradation in hydraulic and lube oil systems creating soluble by-products and sub-micron carbon particles that deplete additives, cause fluid darkening and lead to varnish deposits. Oil formulation changes from Group I base stocks to Group II-III base stock oils has yielded fluids with reduced conductivity characteristics which enhance the effects of element sparking especially during cold start conditions. Hy-Pro NSD (Non Spark Discharge) elements prevent one of the primary causes of thermal fluid degradation and is an important part of varnish deposit formation and phosphate ester fluid maintenance.
Learn more: NSD
Varnish potential test kits are available as VFTK (field portable) and VLTK (on-site lab stationary). Both VFTK and VLTK yield Membrane Patch Colorimetric for lube oil varnish potential (MPC ΔE) per ASTM D02.C0.01 WK13070. VFTK is ideal for preparing frequent samples in various locations (i.e. PDM engineer) and VLTK best suited for dedicated on-site oil analysis lab set up. Use the V*TK to identify hydraulic and lube oil reservoirs with a high potential for varnish formation and trend the effectiveness of varnish mitigation efforts on each turbine.
Learn more: VTK
Servo valve and bearing failures cause unnecessary downtime and expense for paper mills around the world. Other varnish related issues include blocked filter elements and discolored site-glasses. Contact us regarding products and solutions to mitigate varnish contamination and reduce fluid contamination related failures.
Varnish prevention, ISO fluid cleanliness, and additive condition are critical components of reliable injection molding machine operation. Varnish deposits and additive depletion not only cause unplanned downtime they can also have a negative effect on the quality of manufactured parts in an industry where time really is money. Contact us for varnish and other fluid contamination issues in plastic injection molding.
Varnish problems, high particulate and moisture contamination leading to failure in critical rotating equipment are a major concern for refineries around the world. Increase equipment and fluid maintenance intervals on critical turbines, compressors, pumps and other lubricated rotating equipment that typically utilize the same lube oils found on combustion and steam turbines. Hy-Pro has a full range of solutions to prevent varnish, control particulate and keep these critical lube oils dry to avoid millions in downtime caused by maintenance mediocrity.
Hydraulic and lubrication system problems can cause millions of dollars in downtime and lost production for aluminum or steel mills. Further, as automatic gauge controls, roll bending, and other sophisticated systems become more common, servo-valve performance and reliability becomes more critical. Make Hy-pro a part of your lube team and we will implement strategies to significantly improve reliability of critical hydraulic systems in melt shops, continuous casters, and rolling mills, as well as processing operations downstream.
