Efficient Plant April 2022 - 20

feature | lubrication solutions
Analysis of synthetic food-grade lubricant
Oil changed?
Iron (ppm)
Copper (ppm)
Zinc (ppm)
Phosphorus (ppm)
Despite adding this
off line fi ltration
system to improve
cleanliness and reliability
(below), a food
manufacturer continued
to experience
issues. Deposits in the
oil fi lter provided the
answer.
ISO code
4 um
6 um
14 um
MPC
N/A
411
475
No
1
1
388
422
No
2
401
436
16/14/11 17/14/11
824
130
551
101
12
14
No
1
2
360
389
Yes
2
1
4
5
No No
27
4
8
3
5
488
119
9
18/15/12 21/18/15
1641
223
28
15,448
1,791
97
48
6
89
61
lubricant upset such as excessive oil
degradation, accidental cross contamination
with an incompatible
fl uid, or a reaction between the
oil and an ingressed process
fl uid or cleaning agent.
Eff ective fi lter analysis
uses many of the same tests
involved in oil analysis. Th ese
include elemental analysis,
which looks for the presence
(or absence) of specifi c elements
such as iron, copper, or lead as
wear elements or calcium, zinc,
or phosphorus, which are common
additive elements. Unlike conventional oil
analysis, specialized elemental tests are used,
such as x-ray fl uorescence (XRF) or energy dispersive
x-ray (EDX) analysis. Th ese tests are oſt en performed
in conjunction with scanning electron microscopy to
image specifi c particles trapped in the fi lter media.
Fourier Transform Infrared Spectroscopy (FTIR)
is oſt en used to look for molecular " fi ngerprints " of
organic materials such as degraded base oils, stripped
additives, or chemical contaminants. Since FTIR
instruments are oſt en equipped with a " library " of
20 | EFFICIENTPLANTMAG.COM
known organic compounds, unexplained inorganic
residue within a fi lter can oſt en be identifi ed.
Unlike conventional wear-debris analysis, analytical
ferrography, which uses wear-particle morphology
(size, shape, color texture), can be deployed to look
at large wear-metal particles trapped within the fi lter.
Th is can oſt en be helpful when trying to determine
the root cause of active machine wear as part of a
root-cause failure analysis (RCFA).
To understand the value of fi lter analysis, consider
the following examples:
S Hydraulic fi lter plugging: A food manufacturer
decided to switch from a conventional mineral-based
AW46 hydraulic fl uid to a synthetic food-grade lubricant.
At the same time, an offl ine fi ltration system was
added to try to improve overall system cleanliness and
pump and valve reliability. Despite these changes, cleanliness
of the oil, as measured by ISO particle counting,
became worse and valve failure started to occur. No
evidence of any issue was seen in routine oil analysis,
except for elevated particle counts.
Examination of the offl ine fi lter, revealed that the
fi lter media was coated in an inorganic material.
X-ray fl uorescence showed high levels of zinc and
phosphorus and what appeared to be oil-degradation
byproducts (chart above). Aſt er comparing the results
APRIL 2022
http://www.EFFICIENTPLANTMAG.COM

Efficient Plant April 2022

Table of Contents for the Digital Edition of Efficient Plant April 2022

Efficient Plant April 2022 - Cover1
Efficient Plant April 2022 - Cover2
Efficient Plant April 2022 - 1
Efficient Plant April 2022 - 2
Efficient Plant April 2022 - 3
Efficient Plant April 2022 - 4
Efficient Plant April 2022 - 5
Efficient Plant April 2022 - 6
Efficient Plant April 2022 - 7
Efficient Plant April 2022 - 8
Efficient Plant April 2022 - 9
Efficient Plant April 2022 - 10
Efficient Plant April 2022 - 11
Efficient Plant April 2022 - 12
Efficient Plant April 2022 - 13
Efficient Plant April 2022 - 14
Efficient Plant April 2022 - 15
Efficient Plant April 2022 - 16
Efficient Plant April 2022 - 17
Efficient Plant April 2022 - 18
Efficient Plant April 2022 - 19
Efficient Plant April 2022 - 20
Efficient Plant April 2022 - 21
Efficient Plant April 2022 - 22
Efficient Plant April 2022 - 23
Efficient Plant April 2022 - 24
Efficient Plant April 2022 - 25
Efficient Plant April 2022 - 26
Efficient Plant April 2022 - 27
Efficient Plant April 2022 - 28
Efficient Plant April 2022 - 29
Efficient Plant April 2022 - 30
Efficient Plant April 2022 - 31
Efficient Plant April 2022 - 32
Efficient Plant April 2022 - Cover3
Efficient Plant April 2022 - Cover4
https://www.nxtbook.com/atp/MaintenanceTechnology/efficient-plant-april-2022
https://www.nxtbook.com/atp/MaintenanceTechnology/efficient-plant-october-2021
https://www.nxtbook.com/atp/MaintenanceTechnology/efficient-plant-june-2021
https://www.nxtbook.com/atp/MaintenanceTechnology/epapril2021
https://www.nxtbook.com/atp/MaintenanceTechnology/epmarch2021
https://www.nxtbook.com/atp/MaintenanceTechnology/epjanfeb2021
https://www.nxtbook.com/atp/MaintenanceTechnology/epjulyaug2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epjune2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epmay2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epapril2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epmarch2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epfeb2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epjan2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epnovdec2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epseptoct2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epmay2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epapril2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epmarch2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epfebruary2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epjanuary2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epdecember2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epnovember2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epoctober2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epseptember2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epaugust2018
https://www.nxtbook.com/atp/MaintenanceTechnology/0818schneider
https://www.nxtbook.com/atp/MaintenanceTechnology/epjuly2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epjune2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epmay2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epapril2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epmarch2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epfebruary2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epjanuary2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epdecember2017
https://www.nxtbook.com/atp/MaintenanceTechnology/epnovember2017
https://www.nxtbook.com/atp/MaintenanceTechnology/epoctober2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtsept2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtaugust2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjuly2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjune2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtmay2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtapril2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtmarch2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtfebruary2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjanuary2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtdecember2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtnovember2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtoctober2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtseptember2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtaugust2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjuly2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjune2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtmay2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtapril2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtmarch2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtfebruary2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjanuary2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtdecember2015
https://www.nxtbook.com/atp/MaintenanceTechnology/mtnovember2015
https://www.nxtbook.com/atp/MaintenanceTechnology/mtoctober2015
https://www.nxtbook.com/atp/MaintenanceTechnology/mtseptember2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTAugust2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTJuly2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTJune2015
https://www.nxtbook.com/atp/MaintenanceTechnology/M
https://www.nxtbook.com/atp/MaintenanceTechnology/0415endress
https://www.nxtbook.com/atp/MaintenanceTechnology/MTApril2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTMarch2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTFebruary2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTJanuary2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTDecember2014
https://www.nxtbook.com/atp/MaintenanceTechnology/MTNovember2014
https://www.nxtbook.com/atp/MaintenanceTechnology/MTOctober2014
https://www.nxtbook.com/atp/MaintenanceTechnology/MTSeptember2014
https://www.nxtbook.com/atp/MaintenanceTechnology/MTAugust2014
https://www.nxtbook.com/atp/MaintenanceTechnology/MTJuly2014
https://www.nxtbookmedia.com