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GB 11118.1-2011: Hydraulic fluids of L-HL, L-HM, L-HV, L-HS and L-HG type
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Hydraulic fluids of L-HL, L-HM, L-HV, L-HS and L-HG type
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GB 11118.1-2011
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Hydraulic fluids of mineral oil type and synthetic hydrocarbon type
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PDF similar to GB 11118.1-2011
Basic data | Standard ID | GB 11118.1-2011 (GB11118.1-2011) | | Description (Translated English) | Hydraulic fluids of L-HL, L-HM, L-HV, L-HS and L-HG type | | Sector / Industry | National Standard | | Classification of Chinese Standard | E39 | | Classification of International Standard | 75.120 | | Word Count Estimation | 37,380 | | Date of Issue | 2011-12-05 | | Date of Implementation | 2012-06-01 | | Older Standard (superseded by this standard) | GB 11118.1-1994 | | Quoted Standard | GB/T 260; GB/T 261; GB/T 264; GB/T 265; GB/T 511; GB/T 1884; GB/T 1885; GB/T 1995; GB/T 2433; GB/T 2541; GB/T 3141; GB/T 3535; GB/T 3536; GB/T 4756; GB/T 4945; GB/T 5096; GB/T 6540; GB/T 7304; GB/T 7305; GB/T 7631.2; GB/T 8021; GB/T 11133; GB/T 11143; GB/T 12579; GB/T 12581; GB/T 14039; DL/T 432; SH/T 0103; SH 0164; SH/T 0189; SH/T 0209; SH/T 0210; SH/T 0301; SH/T 0305; SH/T 0306; SH/T 0307; SH/T 0308; SH/T 0361; SH/T 0565; SH/T 0604; SAE J745; NAS 1638 | | Adopted Standard | ISO 11158-1997, NEQ | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 19 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard specifies the L-HL, L-HM (high pressure), L-HM (general), L-HV, L-HS and L-HG hydraulic oil classification and marking, requirements and test methods, inspection rules and signs, packaging, transport and storage. This standard applies to the hydrostatic pressure in the hydraulic system used in the hydraulic oil. | GB 11118.1-2011: Hydraulic fluids of L-HL, L-HM, L-HV, L-HS and L-HG type---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Hydraulic fluids of L-HL, L-HM, L-HV, L-HS and L-HG type
ICS 75.120
E39
National Standards of People's Republic of China
Replacing GB 11118.1-1994
Hydraulic oil
(L-HL, L-HM, L-HV, L-HS, L-HG)
(ISO 11158.1997, Lubricants, industrialoilsandrelatedproducts (classL) -
FamilyH (hydraulicsystems) -SpecificationsforcategoriesHH, HL,
HM, HR, HVandHG, NEQ)
Issued on. 2011-12-05
2012-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
2 3 Classification and Marking
3.1 Categories 2
3.2 products mark 2
4 2 requirements and test methods
5 Inspection Rules 3
5.1 Inspection Classification and Test Project 3
5.1.1 factory inspection 3
5.1.2 Type inspection 3
5.2 Batch 3
5.3 Sampling 3
5.4 determine the rules 3
5.5 reinspection Rule 3
6 signs, packaging, transportation, storage 3
(Normative) Evaluation of the performance of the hydraulic fluid in Appendix A T6H20C Double Pump Test Method 17
A.1 Scope 17
SUMMARY 17 A.2 Method
A.3 Test Equipment 17
A.4 Test Phase Description 17
A.4.1 stage Ⅰ 17
A.4.2 Phase Ⅱ 18
Step A.4.3 add water 18
A.4.4 water separator 18
A.5 Test preparation 18
A.6 Running Program 19
A.7 Test Procedure 19
A.8 test measurements 19
A.9 Test Result 20
A.9.1 vane pump 20
A.9.2 piston 20
A.9.3 the measured values and graphics 20
A.10 21 reference oil test
Annex B (informative) The main differences between this standard and GB 11118.1-1994 31
Foreword
The standard 3.2 and Chapter 4, are mandatory, the rest are recommended.
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB 11118.1-1994 "mineral oil and synthetic hydrocarbon hydraulic oil."
This standard compared with GB 11118.1-1994, increased assessment "Inspection Rules" (see Chapter 5) and Appendix A "hydraulic oil performance
T6H20C double pump test method. "Other differences in Appendix B.
The standard reference method using redrafted ISO 11158-1997 "Lubricants, industrial oils and related products (L class) -H group (hydraulics
EC) -HH, HL, HM, HR, HV and HG variety of specifications "(in English) the preparation, the degree of consistency with the ISO 11158-1997 for
Non-equivalent.
This standard by the National Standardization Technical Committee of petroleum products lubricants oil and lubricants and fuels Technical Committee (SAC /
TC280/SC1) centralized.
This standard was drafted. China Research Institute of Petroleum Corp. Petrochemical, China National Petroleum Corp.
Oil company, China Petroleum & Chemical Corporation oil company, Yuci Hydraulic Co., Ltd.
The main drafters of this standard. Chen Liqing, Wang Zeen, Chenhui Qing, Wu Fuli, Zheng, Liang Yong.
This standard was first published in 1994, this is the first revision.
Hydraulic oil
(L-HL, L-HM, L-HV, L-HS, L-HG)
Warning. If you do not observe proper precautions, this product may be hazardous to your standard in the production, storage and use of the process.
This standard is not intended to present all of the safety issues related to the product recommendations. Before using this standard has the responsibility to establish appropriate safety
Full and protective measures, and determine the applicability of regulatory limitations related.
1 Scope
This standard specifies the L-HL, L-HM (high pressure), L-HM (general), L-HV, L-HS and L-HG hydraulic oil classification and labeling, to
Sum test methods, inspection rules and signs, packaging, transportation and storage.
This standard applies to the use of hydrostatic pressure in the hydraulic system of hydraulic oil.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 260 Petroleum products - Determination of water content
GB/T 261 Flash Point by Pensky - Martens closed cup method
GB/T 264 Petroleum products - Determination of acid number
GB/T 265 Petroleum products - Determination of kinematic viscosity and calculation of dynamic viscosity
GB/T 511 Petroleum products and additives - Determination of mechanical impurities (gravimetric method)
GB/T 1884 crude oil and liquid petroleum products - Laboratory determination of density (density meter method)
GB/T 1885 Petroleum Measurement Tables
GB/T 1995 Petroleum products - Calculation of viscosity index
GB/T 2433 and additives - Determination of sulfated ash lubricating oil
GB/T 2541 Petroleum products viscosity index Sheets
GB/T 3141 Industrial liquid lubricants - ISO viscosity classification
GB/T 3535 Petroleum products - Determination of pour point
GB/T 3536 Petroleum products - Determination of flash point and ignition point Cleveland open cup method
GB/T 4756 petroleum liquids hand sampling method
GB/T 4945 Petroleum products and lubricants - Determination of acid and base number (Color Indicator Method)
GB/T 5096 petroleum products copper corrosion test
GB/T 6540 Petroleum products - Determination of color
GB/T 7304 Petroleum products and lubricants - Determination of acid number (potentiometric titration)
GB/T 7305 water separability of petroleum oils and synthetic liquid assay
GB/T 7631.2 Lubricants, industrial oils and related products (L class) classification - Part 2. H (Hydraulic systems)
GB/T 8021 Petroleum products - Determination of saponification value
GB/T 11133 Liquid petroleum products - Determination of water (Karl Fischer method)
GB/T 11143 inhibited mineral oil in the presence of water rust resistance test method
GB/T 12579 Determination of foaming characteristics lubricants
Determination of oxidation characteristics GB/T 12581 Inhibited mineral oils
GB/T 14039 Hydraulic fluid level of contamination by solid particles
DL/T 432 Power in oil particle pollution measurement methods
SH/T 0103 polymer-containing oil shear stability assay (diesel nozzle method)
SH0164 petroleum product packaging, storage and delivery acceptance rules
SH/T 0189 lubricating wear resistance assays (four-ball machine method)
SH/T 0209 Determination of the thermal stability of hydraulic oil
SH/T 0210 Hydraulic oil filter test method
SH/T 0301 Hydraulic fluid hydrolytic stability assay (glass method)
SH/T 0305 Petroleum products - Determination of seal compatibility index
SH/T 0306 Determination of carrying capacity lubricant (CL-100 Gear machine method)
SH/T 0307 petroleum based hydraulic oil wear characteristics measuring method (vane pump method)
SH/T 0308 Determination of lubricating air release value
SH/T 0361 rail oil
Sludge trend SH/T 0565 Inhibited mineral oil assay
SH/T 0604 crude oil and petroleum products densitometry (U-shaped vibrating tube method)
SAEJ745 hydraulic power pump test procedure (Hydraulicpowerpumptestprocedure)
NAS1638 hydraulic system component cleanliness requirements (Cleanlinessrequirementsofpartsusedinhydraulic
systems)
3 Classification and Marking
3.1 Categories
This standard according to GB/T 7631.2 hydraulic oil oxidation rust into L-HL hydraulic oil, L-HM anti-wear hydraulic oil (high pressure, common),
L-HV low temperature hydraulic oil, L-HS ultra-low temperature hydraulic oil and hydraulic oil rail L-HG five varieties.
3.2 Product marking
Hydraulic oil labeled. Variety Code Name Standard No. viscosity grades
Example. L-HL46 hydraulic oil oxidation rust GB 11118.1;
L-HM46 anti-wear hydraulic oil (high pressure) GB 11118.1;
L-HM46 anti-wear hydraulic oil (general) GB 11118.1;
L-HV46 low temperature hydraulic oil GB 11118.1;
L-HS46 ultra low temperature hydraulic oil GB 11118.1;
L-HG46 hydraulic oil rail GB 11118.1.
4 requirements and test methods
Technical requirements and test methods for hydraulic oil of all varieties are shown in Table 1 to Table 5.
5 Inspection Rules
5.1 classification test and inspection project
5.1.1 factory inspection
Batches of the factory inspection items include. kinematic viscosity, density, color, appearance, viscosity index, pour point, acid value, moisture, mechanical impurities, copper rot
Eclipse, liquid rust, foam, air release value, anti-emulsification, cleanliness, rotating bomb and sulfated ash.
Raw materials and production processes that may affect product quality has not changed, the factory inspection items include periodic flash point, saponification value,
Shear stability, seal compatibility index, stick-slip characteristics, wear scar diameter, hydrolytic stability, thermal stability, filtration, gear machine test annually to
Less tested once; oxidation stability test, the vane pump test, double-pump (T6H20C) test for detection of at least once every four years.
5.1.2 Type inspection
Type test items for the list of all inspection items 1 to Table 5 technical requirements.
Type tested under the following conditions.
a) production of new products or appraisement time;
b) raw materials, production processes and other large changes that may affect product quality time;
c) the factory inspection results are quite different and the last type test results.
5.2 Batch
In raw materials, production processes under the same conditions, each producing a pot or kettle product batch.
5.3 Sampling
Sampling by GB/T 4756 carried out the sample volume should meet or type test and factory inspection Quantity stay required.
5.4 determine the rules
Factory inspection or type test results meet the technical requirements in Table 1 to Table 5, it is determined that batch of qualified products.
5.5 reinspection rules
Such as type test or factory inspection result in non-compliance with the provisions of Table 1 to Table 5, when the technical requirements, according to the provisions of GB/T 4756 with self
Batch re-drawn double the amount of the sample do not conform to the project reinspection, the reinspection results as not meet the technical requirements, it is determined that the batch
Substandard products.
6 signs, packaging, transportation and storage
Signs, packaging, transportation, storage and delivery acceptance SH0164 performed.
Appendix A
(Normative)
Evaluation of hydraulic oil performance T6H20C double pump test method
A.1 Scope
This standard specifies the assessment viscosity hydraulic oil, filters, thermal stability, shear stability, corrosion resistance and wear characteristics of the pump test
method.
This standard applies to assess viscosity hydraulic oil filter, thermal stability, shear stability, corrosion resistance and wear characteristics of the pump.
A.2 Method Summary
Standard T6H20C test bench rinse, after adjustments, to 1700r/min constant speed, the test pieces in accordance with vane pumps and piston pumps
Figure A.2 Figure A.3 test cycle or predetermined (alternating pressure cycles), at high temperatures, dry conditions and processing water running 608h, in particular
Hydraulic oil viscosity measurement time, filtration, thermal stability, shear stability, corrosion resistance and wear characteristics of the pump. During the test, press
According to the specified time to take the test oil samples for analysis.
Note. comply with all safety-related requirements.
A.3 Test Equipment
Test equipment using standard T6H20C test bench, test bench configuration as shown in Figure A.1 and A.3. Pump test sequence
No. R-14-10915. Under these conditions, the test stand shall be able to test the pump T6H20C-B20.
a) Test speed 1700r/min.
B) After test running, vane pump pressure 25MPa, piston pressure 28MPa; water-based oil pressure 21MPa, pressure cycling
Time 2s. Minimum pressure p≤1MPa, time of 2s. The maximum pressure p reference to Figure A.2 and A.3.
c) using the tapered inlet tank capacity approximately 150L. Oil level in the pump shaft center line 300mm. When the trial began, the pipeline
Total test fuel 190L ± 10L (using the same reference conditions). At the start of stage Ⅱ, test fuel is adjusted to 175L ± 5L.
d) 6μm separation type filter, Parker (Parker) 926845Q.
e) at the entrance to keep the duct temperature cycle. mineral based hydraulic oil, stage Ⅰ maintained at 110 ℃ ± 5 ℃, Phase Ⅱ maintained at 80 ℃ ±
5 ℃. Water-based hydraulic oil is maintained at 45 ℃ ± 5 ℃. Vegetable or synthetic oil retention at 70 ℃ ± 5 ℃.
f) using Alfa Laval plate heat exchanger type M6-MFG.
g) The system uses the open-cycle loop, installation 6μm air filter, model ParkerH00834/04 on the tank.
h) before entering the tank, ensure that the pipeline does not test oil mixed with air.
i) the entrance pressure. relative value -10kPa \u003cpe\u003c10kPa。水基液压油为10kPa。
A.4 Test Phase Description
A.4.1 stage Ⅰ
Stage Ⅰ, add 190L ± 10L hydraulic oil cleanliness of NAS1638 adjusted to between 7 ~ 8.
A.4.2 Phase Ⅱ
Phase Ⅰ Phase Ⅱ trial use of hydraulic oil is adjusted to 175L ± 5L, between 307h and 308h 1% distilled water.
A.4.3 step of adding water
Water phase (phase Ⅱ) at the beginning, at ambient temperature, from the inlet end of the pump distilled water (30mL/min, the total amount added in 1h
As 1800mL). Temperature was set at 80 ℃. Laboratory temperature was maintained between 25 ℃ ~ 35 ℃. Vane pumps and piston pumps in cyclic pressure
Is 4.9MPa ~ 7MPa.
Throughout the test to maintain the water content (mass fraction of 0.8% to 1.2%). During the test, the minimum required under pressure
Adding a certain amount of water to meet the requirements of the water content.
Record amount of water. The method of measuring the water content using GB/T 11133.
A.4.4 oil-water separator
When an accident occurs, we need to separate oil and water, and let go of the separated water. If downtime, minimum acceptable time is 1h. stop
Machine process, the hydraulic oil should be clean without any pollution, otherwise determined by the oil manufacturers the risk of downtime (be careful). At the lowest point of the pipeline
Venting required the removal of water. There are two oil recovery test. Method 1. The mixture of water and oil into a clean container recycling; Method
2. If the article A.5.3, plus 1800mL of distilled water from the pump inlet.
After restarting, ensure that the water quality control fraction from 0.8% to 1.2%.
After the test phase Ⅰ, open vane pumps and piston pumps, pump damage judgment condition. If the vane pump is damaged, remove vane pump, continue Comments
Fixed HF-1; if the rotating piston assembly damage, remove the shell, piston, thrust plate and port plate, continues to assess the HF-2. Refer to Table A.1 sentence
How to run-off test.
The test results in Table A.1
Vane pump piston through
SS HF-0
SU HF-2
US HF-1
UU failure
Note. S = satisfactory, U = unsatisfactory.
A.5 Test preparation
A.5.1 open all vent valve test bench, including heat exchangers, tanks and other mobile, removed two filters.
A.5.2 Installation flush pump.
A.5.3 manually remove the disk drive test oil remaining in the pipeline.
A.5.4 Installation flush filters, at minimum pressure and temperature conditions using a base oil flushing 8h ~ 12h.
A.5.5 Repeat A.5.1 ~ A.5.3.
A.5.6 Installation flush filter, change the oil at 110 ℃ test run in accordance with the test cycle 24h.
A.5.7 Repeat A.5.1 ~ A.5.3.
A.5.8 flush filter installation, for test oil.
A.5.9 at minimum pressure and temperature conditions, flushing pumps, oil hit test cycle in the pipeline, until the test oil to meet NAS7 ~
8.
A.5.10 removed flush pump, install a new test cartridge and test the pump.
Note. Before each test, in accordance with Chapter 6, Using the test oil pipeline to be thoroughly cleaned. Cleaning using a cleaning pump, without pump test.
A.6 Running Program
After installing the new test cartridge and test the pump, set pressure compensating valve 28MPa; hydraulic oil tank test required to join, adding liquid
Oil pressure to the container half (100L rear), take the 1st oil sample, the physical and chemical properties of oil samples taken from Table A.7 report; run the following steps
7h Running test (less pressure are continuously variable), and the output flow and drain flow measurement according to Table A.8 and Table A.9.
a) vane pumps and piston pumps run 1h at minimum pressure p≤1MPa;
b) vane pumps and piston pumps run 1h at 5MPa;
c) vane pumps and piston pumps run 1h under 15MPa;
d) vane pump at a minimum pressure p≤1MPa, and the piston pump run 1h at 21MPa;
e) piston pump at a minimum pressure p≤1MPa, and vane pump is running 1h at 21MPa;
f) vane pump at a minimum pressure p≤1MPa, and the piston pump run 1h at 25MPa;
g) piston pump at a minimum pressure p≤1MPa, and vane pump is running 1h at 25MPa.
A.7 Test Procedure
A.7.1 Setting the pressure compensating valve 28MPa.
A.7.2 When the hydraulic oil is added to the container half (100L rear), take the 1st oil sample, the physical and chemical properties of oil samples taken from Table A.7 report.
A.7.3 Running 7h.
Figure A.2 A.7.4 run or test cycle (300h) Figure A.3 regulations.
A.7.5 hydraulic fluid measurement and sampling the first 2-10 times, from 7 to 107h measurement and sampling once every 25h, 50h each from 108h ~ 307h
Measuring and sampling time, according to Table A.10, Table A.11, A.12 table report.
A.7.6 After the first phase of operation after opening the pump. The test pieces were photographed and evaluated.
Add water between A.7.7 307h ~ 308h test procedure. For the first 11 samples, according to Table A.10, Table A.11, A.12 table report.
Figure A.2 A.7.8 run or test cycle (300h) Figure A.3 regulations.
A.7.9 Measurement of hydraulic oil and 12 to 19 times the sampling. From 308h ~ 408h measurement and sampling once every 25h, every 409h ~ 608h from
50h measurement and sampling time, according to Table A.10, Table A.11, A.12 table report.
A.7.10 Remove the test pump.
A.7.11 test piece camera, recording the results visually.
Note 1. A.7.1 ~ A.7.3 completed in Chapter 6 Running the program.
Note 2. The piston pump flow 0L/min and a vane pump pressure 25MPa, the vane pump without water flow down to the stage 52L/min or less water stage fall
To 68L/min or less, the test was stopped.
Note 3. piston pressure at 25MPa, piston flow without adding water phase down 56L/min or less, add water phase down 59L/min or less, or two
Stage drain flow is greater than 6L/min, the test was stopped.
A.8 Test Measurement
A.8.1 After the run-in, adjust the pressure relief valve piston in 30MPa, the pressure compensating valve 28MPa. The pressure compensating valve is adjusted to the minimum
To balance the pump flow. Rinse again before the end of 1h will adjust the pressure compensating valve.
A.8.2 Each stage requires measuring cleanliness, water content, hydraulic oil filtration. Stage Ⅰ maximum acceptable limit is the water content
250μg/g, cleanliness NAS1638 8, the phase Ⅱ process acceptable water content (mass fraction) is 0.8% to 1.2%.
When A.8.3 start test, take the test tank intermediate oil cleanliness test to check for new oil.
A.8.4 system stabilized. In the following test, control quantity measured, the test oil sample taken for analysis and the test oil (System
Needed to stabilize the measuring time should be greater than 20s less than 30s), and a brief description and evaluation. The test procedure is as follows.
After a) 7h Running;
b) from 7h to 107h (including 7h, 107h) and 308h to 408h, measured once every 25h;
c) from 107h to 307h and 408h to 608h, sampling once every 50h;
d) Q outlet flow (L/min). Q1 = total piston pump vane pump flow;
e) Q outlet flow (L/min). Q2 = vane pump flow;
f) Q drain flow (L/min). Q3 = piston pump leakage flow;
g) Q piston pump (L/min) = Q1-Q2;
h) vane pump and piston pump pressure 25MPa 28MPa pressure measured at the time of the torque T (N · m);
i) vane pump and piston pump outlet, the inlet and drain temperature;
j) vane pump and piston pump outlet pressure;
k) Δp measured by the filter. (P1-p2) vane pumps and piston pumps are at the minimum pressure, either with water or without a water phase
Straight holding p2 = 0.5MPa ± 0.1MPa. No water phase maximum Δp is 10kPa, water phase is 60kPa;
l) after the hydraulic oil filter cleanliness measurement;
m) for each phase of the installation of new filter test, the entire test phase remains unchanged.
A.8.5 at 7h, 107h, 207h, 307h, 308h, 333h, 408h, 508h and 608h determination of the following items.
a) the viscosity of the hydraulic fluid;
b) by adding the percentage of oil in the water;
c) oil filtration (SH/T 0210).
Use an acid value A.8.6 GB/T 7304 measurement phase Ⅰ and Phase Ⅱ beginning and end of the hydraulic fluid.
A.8.7 mechanical measurements refer to Chapter A.9.
A.9 Test Result
A.9.1 vane pump
A.9.1.1 leaves and peg the total weight loss, weight loss of the stator.
Check the inner surface of the stator A.9.1.2 (no seizure, polishing or corrugated).
A.9.1.3 pan with the oil port check (no seizure or abnormal wear and tear).
A.9.2 piston
A.9.2.1 plunger weightlessness.
A.9.2.2 thrust plate surface inspection.
A.9.2.3 cantilever shaft and hub inspection.
A.9.2.4 housing and valve plate port inspection.
A.9.3 the measured values and graphics
Graphics test report and analysis needs results listed in Table A.2.
Test results. Table A.4, Table A.5 and Table A.6.
Table A.2 test report measured values and graphics needs listed
name
Flow, torque and efficiency losses (mechanical, volume) curve
Test conditions
Vent flow curve (in time for the abscissa)
Vent temperature curve (with time as abscissa)
Filter pressure drop curve (in time for the abscissa)
Kinematic viscosity (in time for the abscissa)
Filtration stability (in time for the abscissa)
The total amount of water (water is added up and the sum)
Through the filter differential pressure Δp
Stable 20s after the measurement.
(Brief description or comment)
Minimum pressure vane pumps, piston pumps 25MPa
Vane pump 25MPa, the minimum pressure piston pump
Vane pump minimum pressure, minimum pressure piston pump
Vane pump 25MPa, 28MPa piston
Minimum pressure vane pumps, piston pumps 28MPa
A.10 reference oil test
New test bench, the need to run T6H20C reference oil test, the test bench configuration Table A.3.
Table A.3 test rig configuration
Recommended test bench configuration
Use only rubber or stainless steel tube.
Filtration pressure p1 and p2, recorded values are accurate to 0.001MPa or (e.g.
0.305MPa)
If the water corrosion caused by filter clogging occurs during the test, should be
Double stainless steel filter
Alternating pressure cycles completed by proportional pressure valve
Theoretically, 608h equivalent to 547,200 cycles (540,000 cycles valid)
Note 1. Boost speed = 250MPa/s < Δp/Δt < 350MPa/s.
Note 2. Lowering rate = 250MPa/s < Δp/Δt < 350MPa/s.
Note 3. In accordance with standard SAEJ745 measuring pressure slope.
Figure A.2 mineral-based and bio-based hydraulic oil pressure test cycle diagram
Theoretically, 608h equivalent to 91 200 cycles (90,000 cycles valid)
Note 1. Boost speed = 250MPa/s < Δp/Δt < 350MPa/s.
Note 2. Lowering rate = 250MPa/s < Δp/Δt < 350MPa/s.
Note 3. In accordance with standard SAEJ745 measuring pressure slope.
Figure A.3 water-based hydraulic oil pressure cycle diagram
Table A.4 vane pump test parameters and measurement results of the test oil Analysis Project
Test No. vane pump unit number to send samples
Laboratory test oil Name Name Test Date
Measurements time/h
The results of the pilot phase Ⅰ
7107207307
25MPa output flow/(L/min)
25/28MPa piston pump output torque/Nm
Import temperature/℃
Outlet temperature/℃
At the lowest pressure, via two pumps
Return filter differential pressure/kPa
NAS1638 hydraulic oil cleanliness/level
The water content/(mass fraction)%
40 ℃ kinematic viscosity/(mm2/s)
100 ℃ kinematic viscosity/(mm2/s)
SH/T 0210
Anhydrous
2% water
The results of the pilot phase Ⅱ
308 408 508 608
25MPa output flow/(L/min)
25MPa output torque/Nm
Import temperature/℃
Outlet temperature/℃
By returning the filter differential pressure/kPa
NAS1638 hydraulic oil cleanliness/level
The water content/(mass fraction)%
40 ℃ kinematic viscosity/(mm2/s)
100 ℃ kinematic viscosity/(mm2/s)
SH/T 0210
Table A.5 piston pump test parameters measurements
Test No. No. send samples piston unit
Laboratory test oil Name Name Test Date
Measurements time/h
The results of the pilot phase Ⅰ
7107207307
25MPa output flow/(L/min)
25MPa drain flow/(L/min)
Import temperature/℃
Outlet temperature/℃
Drain temperature/℃
The results of the pilot phase Ⅱ
308 408 508 608
25MPa output flow/(L/min)
25MPa drain flow/(L/min)
Import temperature/℃
Outlet temperature/℃
Drain temperature/℃
Pilot p...
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 11118.1-2011_English be delivered?Answer: Upon your order, we will start to translate GB 11118.1-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB 11118.1-2011_English with my colleagues?Answer: Yes. The purchased PDF of GB 11118.1-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB 11118.1-2011?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 11118.1-2011 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
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