EN ISO 20763:2004
(Main)Petroleum and related products - Determination of anti-wear properties of hydraulic fluids - Vane pump method (ISO 20763:2004)
Petroleum and related products - Determination of anti-wear properties of hydraulic fluids - Vane pump method (ISO 20763:2004)
ISO 20763:2004 specifies procedures for the determination of steel-on-steel anti-wear properties of hydraulic fluids by means of performance in a vane-type hydraulic pump. ISO 20763:2004 covers a range of hydraulic fluids, both anhydrous and aqueous, intended for applications where high-speed sliding contacts, such as those found in a vane pump, are encountered.
For mineral oils of categories HM and HV, and fire-resistant fluids of category HFD, the method is applicable to viscosity classes ISO VG 32, ISO VG 46 and ISO VG 68, as specified in ISO 3448. Under different specified conditions, the method is applicable to aqueous fire-resistant hydraulic fluids in categories HFA, HFB and HFC, as specified in ISO 12922, within the same viscosity classes.
Mineralölerzeugnisse und verwandte Produkte - Bestimmung des Verschleißschutzvermögens von Druckflüssigkeiten - Prüfung in der Flügelzellenpumpe (ISO 20763:2004)
Diese Internationale Norm beschreibt ein Verfahren zur Bestimmung des Stahl-auf-Stahl Verschleißschutz-verhaltens von Hydraulikflüssigkeiten durch mechanische Prüfung in einer Flügelzellenpumpe. Die Norm umfasst einen Bereich von Hydraulikflüssigkeiten, sowohl wasserfreie als auch wasserhaltige, die zur Anwendung bei Gleitstellen mit hohen Gleitgeschwindigkeiten vorgesehen sind, so wie sie in einer Flügelzellenpumpe vorkommen.
Für Mineralöle der Kategorien HM und HV, und für schwerentflammbare Flüssigkeiten der Kategorie HFD ist das Verfahren auf die folgenden Viskositätsklassen anwendbar, wie in ISO 3448 [1] festgelegt: ISO VG 32, ISO VG 46 und ISO VG 68; und unter anderen Anforderungsbedingungen ist das Verfahren auf wasserhaltige schwerentflammbare Hydraulikflüssigkeiten der Kategorien HFA, HFB und HFC anzuwenden, wie in ISO 12922 [3] festgelegt, und zwar in den gleichen Viskositätsklassen.
ANMERKUNG Viskositätsklassen unter ISO VG 32 und über ISO VG 68 können mit dieser Technik geprüft werden, sie erfordern jedoch andere Bedingungen für die Pumpeneingangsviskosität und sind noch nicht in ausreichendem Maße ausgewertet worden. Diese Internationale Norm ist auf die definierten festgelegten Grenzwerte beschränkt.
Pétrole et produits connexes - Détermination des propriétés anti-usure des fluides hydrauliques - Méthode de la pompe à palettes (ISO 20763:2004)
L'ISO 20763:2004 spécifie des méthodes pour déterminer les propriétés anti-usure, acier sur acier, des fluides hydrauliques à l'aide d'une pompe hydraulique à palettes. L'ISO 20763:2004 s'applique à une gamme de fluides hydrauliques, tant anhydres qu'aqueux, utilisés pour les contacts glissants à grande vitesse, comme on en trouve dans les pompes à palettes.
Pour les huiles minérales des types HM et HV et les fluides difficilement inflammables du type HFD, la méthode est applicable aux classes de viscosité ISO VG 32, ISO VG 46 et ISO VG 68, définies par l'ISO 3448. La méthode est également applicable, dans des conditions différentes spécifiées, aux huiles hydrauliques difficilement inflammables des types HFA, HFB et HFC définis par l'ISO 12922, et pour les mêmes classes de viscosité.
Nafta in sorodni proizvodi – Določanje protiobrabnih lastnosti hidravličnih tekočin – Metoda s krilno črpalko (ISO 20763:2004)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2004
1DIWDLQVRURGQLSURL]YRGL±'RORþDQMHSURWLREUDEQLKODVWQRVWLKLGUDYOLþQLKWHNRþLQ
±0HWRGDVNULOQRþUSDONR ,62
Petroleum and related products - Determination of anti-wear properties of hydraulic fluids
- Vane pump method (ISO 20763:2004)
Mineralölerzeugnisse und verwandte Produkte - Bestimmung des
Verschleißschutzvermögens von Druckflüssigkeiten - Prüfung in der Flügelzellenpumpe
(ISO 20763:2004)
Pétrole et produits connexes - Détermination des propriétés anti-usure des fluides
hydrauliques - Méthode de la pompe a palettes (ISO 20763:2004)
Ta slovenski standard je istoveten z: EN ISO 20763:2004
ICS:
75.120 +LGUDYOLþQLIOXLGL Hydraulic fluids
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
INTERNATIONAL ISO
STANDARD 20763
First edition
2004-07-01
Petroleum and related products —
Determination of anti-wear properties of
hydraulic fluids — Vane pump method
Pétrole et produits connexes — Détermination des propriétés anti-usure
des fluides hydrauliques — Méthode de la pompe à palettes
Reference number
ISO 20763:2004(E)
©
ISO 2004
ISO 20763:2004(E)
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ii ISO 2004 – All rights reserved
ISO 20763:2004(E)
Contents Page
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Reagents and materials . 2
5 Apparatus . 2
6 Samples and sampling . 6
7 Preliminary test . 6
8 Preparation of apparatus . 6
9 System flushing and cleaning . 6
10 Preparation of cartridge for test . 7
11 Procedure . 7
12 Expression of results . 9
13 Precision . 9
14 Test report . 9
Annex A (normative) Test cartridge component selection, preparation and assembly . 10
Annex B (informative) Test cartridge suppliers . 16
Bibliography . 17
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ISO 2004 – All rights reserved iii
ISO 20763:2004(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 20763 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants.
©
iv ISO 2004 – All rights reserved
INTERNATIONAL STANDARD ISO 20763:2004(E)
Petroleum and related products — Determination of anti-wear
properties of hydraulic fluids — Vane pump method
WARNING — The use of this International Standard may involve hazardous materials, operations and
equipment. This International Standard does not purport to address all of the safety problems
associated with its use. It is the responsibility of the user of this International Standard to establish
appropriate safety and health practices and determine the applicability of regulatory limitations prior to
use.
1Scope
This International Standard specifies procedures for the determination of steel-on-steel anti-wear properties of
hydraulic fluids by means of performance in a vane-type hydraulic pump. It covers a range of hydraulic fluids,
both anhydrous and aqueous, intended for applications where high-speed sliding contacts, such as those found
in a vane pump, are encountered.
For mineral oils of categories HM and HV, and fire-resistant fluids of category HFD, the method is applicable to
[1]
viscosity classes ISO VG 32, ISO VG 46 and ISO VG 68, as specified in ISO 3448 . Under different specified
conditions, the method is applicable to aqueous fire-resistant hydraulic fluids in categories HFA, HFB and HFC,
[3]
as specified in ISO 12922 , within the same viscosity classes.
NOTE Viscosity classes below ISO VG 32 and above ISO VG 68 can be tested by this technique, but require different
conditions of pump inlet viscosity, and have not been widely assessed. This International Standard is confined to the
specified limiting values defined.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 3104:1994, Petroleum products — Transparent and opaque liquids — Determination of kinematic viscosity
and calculation of dynamic viscosity
ISO 3170:2004, Petroleum liquids — Manual sampling
ISO 3696:1987, Water for analytical laboratory use — Specification and test methods
ISO 4406:1999, Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid
particles
3 Principle
Approximately 70 litres of the fluid under test is circulated for 250 h by a vane pump under conditions of output
flow, operational pressure and fluid temperature related to the type and viscosity grade of the fluid. At the end of
the test period, the mass loss of the 12 vanes and the ring on the test cartridge are determined. Measurement
of decrease in output flow during the test run, and mass loss of the two side bushings and the rotor are also
taken as control measures within the limiting test conditions, but the mass losses do not constitute a
requirement of method conformance.
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ISO 20763:2004(E)
4 Reagents and materials
4.1 Water, conforming to the requirements of grade 3 of ISO 3696.
4.2 Cleaning solvents
4.2.1 General
The choice of solvent in some applications will be related to the fluid under test or being removed from previous
tests, and the user shall select the most appropriate, related to his/her experience. Light hydrocarbon solvents
are chosen for the removal of oily residues, and oxygenated solvents for the removal of water-containing
residues. Acetone is specified as a high-volatility final rinse solvent, which also removes the last traces of water.
4.2.2 Light hydrocarbons, either heptane, 2,2,4-trimethylpentane or petroleum spirit having a boiling range
◦ ◦
essentially between 60C8 and 0 C.
4.2.3 Oxygenated hydrocarbons, either methanol, ethanol or propan-2-ol (isopropyl alcohol).
4.2.4 Acetone, of commercial grade.
4.2.5 1,2-Propyleneglycol (propandiol), of 99 % minimum purity.
4.3 Abrasive stone, of fine grade for removing sharp edges and burrs from all steel cartridge parts.
4.4 Abrasive cloth or paper, including fine grade 2/0 (approximately 27µm grit size [European grade
P1 200]) and coarser grades including and grit size (grades P360 and P320) as required.
37µm53µm
5 Apparatus
5.1 Test rig, consisting of a hydraulic circuit as illustrated in Figure 1. Pipes and fittings shall include facilities
so that the rig can be bled free of air and the test fluid can be completely drained. The major components of the
rig are given in 5.1.1 to 5.1.12. The rig shall be protected by means of automatic cut-off covering the electrical
circuits to the motor and limiting values for temperature, pressure and fluid level.
WARNING — The test rig operates at high pressures and temperatures, and the automatic protection
devices should be regularly tested for appropriate cut-off performance.
5.1.1 Fluid reservoir, constructed of corrosion-resistant material with a sealed lid and fitted pressure-relief
valve, and capable of holding the test fluid volume of 70 litres with the fluid level approximately 500 mm above
the pump inlet. An illustration of a suitable reservoir is given in Figure 2.
1)
5.1.2 Vane pump, Vickers, of type V-104-C-10 or V-105-C-10 . The seals of the pump shall be compatible
with the fluid type/test temperature conditions of the test. The main shaft, seals and ball bearings of the pump
shall be replaced after five runs or when any signs of wear, as evidenced by test conditions, is apparent.
NOTE The life of the main shaft and ball bearings is decreased when testing aqueous fluids.
5.1.3 Test cartridge
The availability of test cartridges and components is under review following the decision of Eaton (formerly
Vickers) to discontinue manufacturing these as separate items. See Annex B for the position at the time of
publication of this International Standard.
5.1.4 Drive motor, with a rated power minimum of 11 kW, and a rated speed of 1 440 r/min± 50 r/min.
1) This information is given for the convenience of users of this International Standard and does not constitute an
endorsement by ISO of these products.
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ISO 20763:2004(E)
Dimensions in millimetres
Key
1 reservoir
2 drainage valve
3 level above pump inlet
4pipe 28× 2
5 ball valve
6 suction pressure gauge
7 temperature meter (test temperature)
8 vane pump
9 electric motor
10 pipe 25× 5
11 test pressure gauge
12 relief valve
13 return filter
14 flow meter
15 cooling water regulator
16 fluid cooler
17 temperature controller
Figure 1 — Test rig layout
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ISO 2004 – All rights reserved 3
ISO 20763:2004(E)
Dimensions in millimetres
Figure 2 — Illustrative fluid reservoir
©
4 ISO 2004 – All rights reserved
ISO 20763:2004(E)
Key
1 butterfly nut M8
2 cover seal (rubber)
3 bore for liner (temperature sensor)
4pipe 22× 2
28× 2
5pipe
6 sleeve for oil drainage
Figure 2 — Illustrative fluid reservoir (continued)
5.1.5 Heat exchanger, fitted with control equipment to maintain the test fluid at the specified test temperature
◦
± 2 C before the pump.
NOTE A shell-and-tube-type heat exchanger is recommended with the connections in reverse (the fluid passed through the
tubes) to facilitate effective cleaning between tests (see Clause 9).
5.1.6 Pipework
5.1.6.1 The pipe or hose compatible with the fluid under test, between the outlet of the reservoir and the pump,
shall be of nominal 28 mm outside diameter with 2 mm w
...
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