ASTM D6973-14
(Test Method)Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump
Standard Test Method for Indicating Wear Characteristics of Petroleum Hydraulic Fluids in a High Pressure Constant Volume Vane Pump
SIGNIFICANCE AND USE
5.1 This test method is an indicator of the wear characteristics of petroleum hydraulic fluids operating in a constant volume vane pump. Excessive wear in vane pumps could lead to malfunction of hydraulic systems in critical industrial or mobile hydraulic applications.
SCOPE
1.1 This test method covers a constant volume high-pressure vane pump test procedure for indicating the wear characteristics of petroleum hydraulic fluids. See Annex A1 for recommended testing conditions for water-based synthetic fluids.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D6973 − 14
Standard Test Method for
Indicating Wear Characteristics of Petroleum Hydraulic
1
Fluids in a High Pressure Constant Volume Vane Pump
This standard is issued under the fixed designation D6973; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* ISO 11500 Hydraulic Fluid Power—Determination of Par-
ticulate Contamination by Automatic Counting Using the
1.1 This test method covers a constant volume high-
Light Extinction Principle
pressure vane pump test procedure for indicating the wear
2.3 Other Documents:
characteristicsofpetroleumhydraulicfluids.SeeAnnexA1for
4
SAE 100R13–20 Hydraulic Hose Specification
recommended testing conditions for water-based synthetic
ANSI/(NFPA) T2.13.1 R3-1998 Recommended Practice—
fluids.
Hydraulic Fluid Power—Use of Fire-Resistant Fluids in
5
1.2 The values stated in SI units are to be regarded as the
Industrial Systems
standard. The values given in parentheses are for information
3. Terminology
only.
1.3 This standard does not purport to address all of the 3.1 Definitions of Terms Specific to This Standard:
3.1.1 flushing, v—the process of cleaning the test system
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- before testing to prevent cross-contamination.
priate safety and health practices and determine the applica-
4. Summary of Test Method
bility of regulatory limitations prior to use.
4.1 Hydraulic fluid in the amount of 190 L 6 4 L(50 gal 6
1 gal) is circulated through a rotary vane pump system for 50 h
2. Referenced Documents
at a pump speed of 2400 r⁄min 6 20 r/min and a pump outlet
2
2.1 ASTM Standards:
pressure of 20.7 MPa 6 0.2 MPa (3000 psig 6 20 psig). Fluid
E691 Practice for Conducting an Interlaboratory Study to
temperatureatthepumpinletis95 °C 63 °C(203 °F 65 °F).
Determine the Precision of a Test Method
An ISO Grade 32 or 10W viscosity is required.
3
2.2 ISO Standards:
4.2 The mass of the cam ring and all ten vanes should be
ISO 4021 Hydraulic Fluid Power—Particulate Contamina-
individuallydeterminedbeforeandafterthetest.Themassloss
tionAnalysis—Extraction of Fluid Samples from Lines of
ofthecamringshouldbereportedwiththecombinedmassloss
an Operating System
of all ten vanes. The intra-vanes (inserts) are not part of the
ISO 4406 Hydraulic Fluid Power—Fluids—Method for
required mass loss measurements and should be separately
Coding the Level of Contamination by Solids Particles
measured if desired. Other reported values are fluid cleanliness
ISO 7745 Hydraulic Fluid Power—Fire-Resistant (FR)
before and after the test, initial flow rate, and final flow rate.
Fluids—Guidelines for Use
4.3 Prior to installing the hydraulic test fluid into the rig, a
ISO 11171 Hydraulic Fluid Power—Calibration of Auto-
stand flush is required to remove any contaminants. A mini-
matic Particle Counters for Liquids
mum quantity of 190 L 6 4 L (50 gal 6 1 gal) of fluid (see
Note 1) made of the same chemical formulation as the test
fluid,isrequiredforthestandflush.Thereforethetotalquantity
1
This test method is under the jurisdiction of ASTM Committee D02 on
of oil required for the test is 380 L (100 gal).
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.N0 on Hydraulic Fluids.
5. Significance and Use
Current edition approved July 1, 2014. Published August 2014. Originally
ε1
approved in 2003. Last previous edition approved in 2008 as D6973 – 08 . DOI:
5.1 This test method is an indicator of the wear character-
10.1520/D6973-14.
istics of petroleum hydraulic fluids operating in a constant
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on Available from SAE International (SAE), 400 Commonwealth Dr.,Warrendale,
the ASTM website. PA 15096, http://www.sae.org.
3
5
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St., Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6973 − 14
Description of Components:
1 Reservoir, 190 L (50 gal) of oil; elevated above pump centerline to provide gravity feed
2 Temp
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D6973 − 08 D6973 − 14
Standard Test Method for
Indicating Wear Characteristics of Petroleum Hydraulic
1
Fluids in a High Pressure Constant Volume Vane Pump
This standard is issued under the fixed designation D6973; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
ε NOTE—Changes were made to Fig. 1 and Note 4, and Note 7 was added editorially in May 2008.
1. Scope Scope*
1.1 This test method covers a constant volume high-pressure vane pump test procedure for indicating the wear characteristics
of petroleum hydraulic fluids. See Annex A1 for recommended testing conditions for water-based synthetic fluids.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3
2.2 ISO Standards:
ISO 4021 Hydraulic Fluid Power—Particulate Contamination Analysis—Extraction of Fluid Samples from Lines of an
Operating System
ISO 4406 Hydraulic Fluid Power—Fluids—Method for Coding the Level of Contamination by Solids Particles
ISO 7745 Hydraulic Fluid Power—Fire-Resistant (FR) Fluids—Guidelines for Use
ISO 11171 Hydraulic Fluid Power—Calibration of Automatic Particle Counters for Liquids
ISO 11500 Hydraulic Fluid Power—Determination of Particulate Contamination by Automatic Counting Using the Light
Extinction Principle
2.3 Other Documents:
4
SAE 100R13–20 Hydraulic Hose Specification
ANSI/(NFPA) T2.13.1 R3-1998 Recommended Practice—Hydraulic Fluid Power—Use of Fire-Resistant Fluids in Industrial
5
Systems
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 flushing, v—the process of cleaning the test system before testing to prevent cross-contamination.
4. Summary of Test Method
4.1 Hydraulic fluid in the amount of 190 6 4 L (50 6 1 gal) 190 L 6 4 L (50 gal 6 1 gal) is circulated through a rotary vane
pump system for 50 h 50 h at a pump speed of 24002400 r ⁄min 6 20 r/min and a pump outlet pressure of 20.7 6 0.2 MPa (3000
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.N0.07 on Lubricating Properties.
Current edition approved Feb. 1, 2008July 1, 2014. Published March 2008 August 2014. Originally approved in 2003. Last previous edition approved in 20052008 as
ε1
D6973D6973 – 08 –05. DOI: 10.1520/D6973-08E01.10.1520/D6973-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.
4
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001.
5
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6973 − 14
Description of Components:
1 Reservoir, 190 L (50 gal) of oil; elevated above pump centerline to provide gravity feed
2 Temperature gage or thermocouple
3 Inlet pressure gage
4 Pump: 35VQ25A-11*20 (Cartridge kit P/N 4998040–002)
5 Electric motor, 93 kW (125 hp)
6 Outlet pressure gage
7 Pressure relief valve
8 Filter
9 Cooler
10 Flowmeter
NOTE 1—See Eaton Overhaul Manual I-3144–S (Appendix B) (available from any Eaton distributor).
FIG. 1 System Schematic
6 20 psig). 20.7 MPa 6 0.2 MPa (3000 psig 6 20 psig). Fluid temperature at the pump inlet is 9595 °C 6 3°C (2033 °C (203 °F
6 5°F).5 °F). An ISO Grade 32 or 10W viscosity is required.
4.2 The mass of the cam ring a
...
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