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Varnish and Deposit Prevention and Removal (VPR) Certification Preparation

Varnish and Deposit Prevention and Removal (VPR) Certification Preparation

Original price was: $195.00.Current price is: $50.00.

Varnish and Deposit Prevention and Removal (VPR) Certification Preparation is an online certification course that equips lubrication, reliability, and maintenance professionals with the knowledge to prevent, control, and remove varnish and lubricant-derived deposits in industrial machinery. Participants will learn how lubricant degradation and contamination contribute to deposit formation, evaluate varnish conditions, select appropriate mitigation and removal technologies, and implement effective varnish control systems to enhance equipment reliability and performance. The course is ideal for reliability engineers, maintenance managers, filtration specialists, laboratory technicians, and other professionals responsible for lubricant management and deposit control strategies.

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Description

The Varnish and Deposit Prevention and Removal (VPR) Certification Preparation outline:

  • Problems Associated with Varnish and Deposits

    • Flow restriction, starvation and filter plugging

    • Restricted movement, stiction and silt lock

    • Increased friction and effect on efficiency

    • Impaired heat transfer

    • Bearing operation

    • Need to flush

    • Accelerated lubricant degradation

    • Lubricant performance properties

  • Factors Affecting Breakdown

    • Effect of base fluid on breakdown and deposit formation:

      • Groups I – IV more prone to oxidation.

        • Very non-polar – lower relative saturation point.

      • Group V prone to hydrolysis (esters), thermal degradation (PAGs) and oxidation (limited discussion).

        • Relatively polar – higher relative saturation point.

      • Additive Selection.

        • Amine antioxidants, phenol antioxidants and antiwear additives.

        • Additive synergy and anti-synergy.

      • Contamination:

        • Catalysis by acids or wear metals (cupric surfaces, babbitt etc.).

        • Impact of water.

        • Process chemicals (H2S, process gases, H2, He etc.).

        • Intermixing of oils (poor maintenance, leakage etc.).

      • Temperature:

        • Arrhenius law.

        • High temperature excursions (microdieseling, electrostatic discharge etc.).

        • Oxidation of base-stock and additives.

        • Additive drop out.

        • Oil base-stock phase separation.

  • Proactive Methods that can be used to Minimize Oil Breakdown (16%)

    • Keep temperature down during service and storage.

    • Keep oil clean and dry.

    • Use thermally/oxidatively-robust formulations.

    • Use oils with high impurity-holding capacity (IHC).

    • Nitrogen blanketing (creates potential for entrained gas/nitration).

    • Antioxidant additives.

      • Spent additives can actually contribute to deposits.

    • Controlling aeration and foam.

    • Controlling electrostatic discharge

    • Maintaining optimum fluid health

  • Methods/Technologies that can be used to Remove Oil Breakdown Products and/or Prevent Deposits

    • Particulate filtration (pros and cons)

    • Electrostatic precipitation and agglomeration. (pros and cons)

    • Centrifugal separation (pros and cons)

    • Ion exchange resins (pros and cons)

    • Oil soluble PAGs (pros and cons)

    • Chemical flush (pros and cons)

    • Detergents and solvents (pros and cons)

    • Solubility Enhancers (pros and cons)

    • Spark-free/antistatic filters

 

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