13 test parameters to test the Turbine Oil, as per the standards.
Sapna Chand
Business Executive- Oil & Gas, Power Generation at Minimac Systems Pvt Ltd. (Oil Purification Equipments)
Test Parameters:
1.?Viscosity
2.?Viscosity Index
3.?Flash Point
4.?Pour Point
5. Demulsification
6. Copper Corrosion
7. Acid Number
8. Foam Characteristics
9. Oxidation Characteristics
10. Water Separation
11.?Rust Prevention
12.?Cleanliness
13.?Water Content
*Oxidation Stability Test:?Turbine Oil Oxidation Stability Test?(TOST) is a valuable tool in order to indicate?oil?life for?lubricants?that are continuously exposed to gross water contaminations, high temperatures, and air entrainment in field service.
ASTM D943 is commonly referred to as Turbine Oil. Oxidation Stability Test (TOST), is widely used in the lubrication industry to evaluate oxidation stability.
Best Practices for Steam Turbine Lubrication:
?1.?Keep Oil Clean, Cool and Dry
2. Install High Capture Efficiency Breathers to your Oil Respective Oil Tanks
3. Monitor returning bearing oil temperature regularly
4. Maintain proper alignment
5.?Inspect for signs of foaming and /or Air Entrainment
6.?Install primary (return line) and secondary sampling points
7.?Perform regular oil analysis
8.?Routinely inspect sight glasses for level, foam, and water
9.?Keep tank headspace dry using?blowers, condensers, or instrument air
10.?Drain accumulated water regularly
11.?Use offline fluid conditioning for precision contamination control
12.?Regularly inspect for varnish, especially in gas turbines
13.?Protect against water and or detergent ingress during wash-down
14.?Inspect bulk delivery of new oil before acceptance?
We at?Minimac?study your maintenance needs and provide the best solution.?We believe in?Discern, Design & Deliver.
Contact Us?for Mechanical Maintenance & Oil Check.
Would like to add 3 parameters that are recommended by different OEMs - MPC level (Varnish potential), RULER (antioxidant level) and Air release.
Dear Goldi, what do you see as the main point deviate from industry references such as ASTM D4378 or VGB M416 (DIN)? Also, as the varnish problem is so common, why not ASTM D7843? Looking forward to an open discussion ??