Destiny International

Applications:

Reasons for critical hydraulic systems to fail :

Todays hydraulic systems contain minute pilot circuits with electronically controlled high pressure valves, which produce the exact hydraulic force to move the proportional valve directional spool.The internal parts have low tolerences and right size particles can render the equipment inoperable .

Hence these particles are a must to be removed from the oil.

Control pumps and servo valve malfunction :

  • REASONS-1 VALVE JET STEERING – Sticking of large contaminants in the narow passages
  • REASON-2 FIRST STAGE STEERING- Wear of ball surface to ovalty due to smaller metal contaminants results in wrong steering of main spool.
  • REASON -3 NO OVERLAP IN EDGES OF SERVO VALVE- is restricted by contamainants and results in sticking of valve.
  • Control pumps and servo have very critical tolerences 1-10 micron and are very susceptible to fine contaminants.
  • NAS 6 ISO CODE 15/12 can be attained by depth filtration to ensure Kleen oil and a long trouble free operation of system.
CONTROL PUMPS AND SERVO VALVE MALFUNCTION
CONTROL PUMPS AND SERVO VALVE MALFUNCTION
SOLID WEAR PARTICLES

Wear Particles & Contaminants in Machine Hydraulic Oils: What You Need to Know

Hydraulic oil is the lifeblood of industrial machines. But over time, this vital fluid can get contaminated with microscopic wear particles and other impurities — leading to system inefficiency, downtime, and costly repairs.

Understanding the types of contaminants in hydraulic oil and how they affect your system is critical to maintaining peak performance and reliability.

What Are Wear Particles in Hydraulic Oil?

Wear particles are tiny metal fragments generated from friction between moving parts inside hydraulic systems — such as pumps, valves, cylinders, and motors.

These particles are often invisible to the naked eye but can severely damage components by:

  1. Accelerating abrasion and erosion
  2. Blocking small orifices and clearances
  3. Reducing oil life and increasing temperature
  4. Causing premature seal and bearing failure

Common Types of Contaminants in Hydraulic Oil

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