1、Designation: D 7043 04aAn American National StandardStandard Test Method forIndicating Wear Characteristics of Non-Petroleum andPetroleum Hydraulic Fluids in a Constant Volume VanePump1This standard is issued under the fixed designation D 7043; the number immediately following the designation indica
2、tes the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This test method covers a constant volume
3、vane pumptest procedure operated at 1200 rpm and 13.8 MPa.1.2 The values stated in SI units are to be regarded asstandard. The values in parentheses are provided for informa-tion only.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is ther
4、esponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 2882 Test Method for Indicating Wear Characteristics ofPetroleum and Non-Petroleum Hyd
5、raulic Fluids in Con-stant Volume Vane Pump3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 flushing, vprocess of cleaning the test system beforetesting to prevent cross-contamination.3.1.2 torquing, vprocess of tightening the pump headbolts to achieve a uniform clamping force.
6、4. Summary of Test Method4.1 An amount of 18.9 6 0.5 L(5 6 0.13 gal) of a hydraulicfluid are circulated through a rotary vane pump system for 100h at a pump speed of 1200 6 60 r/min and a pump outletpressure of 13.8 6 0.3 MPa (2000 6 40 psi). Fluid temperatureat the pump inlet is 66 6 3C (150 6 5F)
7、for all water glycols,emulsions, and other water containing fluids and for petroleumand synthetic fluids of ISO Grade 46 or lighter. A temperatureof 80 6 3C (175 6 5F) is used for all other synthetic andpetroleum fluids.4.2 The result obtained is the total mass loss from the camring and the twelve v
8、anes during the test. Other reported valuesare initial flow rate and final flow rate.4.3 The total quantity of test oil required for a run is 26.5 L(7 gal).5. Significance and Use5.1 This test method is an indicator of the wear character-istics of petroleum and non-petroleum hydraulic fluids operat-
9、ing in a constant volume vane pump. Excessive wear in vanepumps could lead to malfunction of hydraulic systems incritical applications.6. Apparatus6.1 The basic system consists of the following (see Fig. 1):6.1.1 AC Motor, 1200-rpm, or other suitable drive, with 11kw (15 hp) as suggested minimum pow
10、er requirement (Item 5,Fig. 1).The motor must have right hand rotation (counterclock-wise rotation as viewed from the shaft end).6.1.2 Test Stand Base, with appropriate, rigid mounting forthe motor, pump, reservoir, and other components.6.1.3 Rotary Vane Pump, replaceable cartridge type. AVickers310
11、4C or 105C housing is used along with internalcomponents from Conestoga USA, Inc.4The assembly shouldproduce 28.4 L/min (7.5 gal/min) flow at 1200 r/min with ISOGrade 32 fluid at 49C (120F), at 6.9 MPa (1000 psi) (Item 3,Fig. 1; Fig. 2). (WarningThe test pump is rated at 6.9 MPa(1000 psi) but is bei
12、ng operated at 13.8 MPa (2000 psi). Aprotective shield around the pump is recommended.)1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.N0 on Hydraulic Fluids.Current edition approved Dec. 1, 200
13、4. Published January 2005. Originallyapproved in 2004. Last previous edition approved in 2004 as D 7043 04.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the stand
14、ards Document Summary page onthe ASTM website.3Vickers is a part of Eaton Hydraulics, Hydraulic Supply Company, 300International Parkway, Sunrise, FL 33325.4Conestoga USA Inc., P.O. Box 3052, Pottstown, PA 19464.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM Intern
15、ational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.NOTE 1This method has been written for the use of Conestoga USAInc. internals along with a Vickers housing and head. If components fromother manufacturers are used, refer to Test Method D288200 forpreparatio
16、n and selection guidelines.6.1.3.1 The replaceable cartridge consists of the cam ring,the rotor, two bushings, a set of twelve vanes, and an alignmentpin.6.1.3.2 The individual cartridge parts are purchased sepa-rately. Conestoga USA, Inc. part numbers for these items are:cam ring No. 2882-5, alignm
17、ent pin No. 2882-10, rotor No.2882-1C, bronze bushings No. 2882-4C and 2882-4E, andvane kit (12 vanes) No. 2882-V12.6.1.3.3 There are to be no modifications to the pumphousing such as plugging the drain hole in the pump body ordrilling and tapping a hole in the head for an external drain.6.1.4 Reser
18、voir, (Item 1, Fig. 1).6.1.4.1 The reservoir shall be equipped with a removablebaffle and a close fitting lid, all of stainless steel construction.The reservoir can be square or rectangular (with a flat bottom)or cylindrical (with a spherical or cone shaped bottom) andmust be designed so as to avoid
19、 air entrainment in the fluid.NOTE 2A suitable reservoir design is presented in Test MethodD288200.6.1.4.2 To promote deaeration and thermal mixing of thefluid, fluid residence time in the reservoir should be maxi-mized. To achieve this, the baffle shall be designed so thatreturning fluid will follo
20、w an indirect path from the return portto the outlet port.FIG. 1 System SchematicD 7043 04a26.1.4.3 To avoid air entrainment, the reservoir shall bedesigned so that the return line enters well below the fluidlevel, fluid flow does not cascade over the baffle, and there willbe a minimum of 15 cm (6 i
21、n.) of fluid depth above the pumpinlet line.6.1.4.4 Fluid ports may be added as required by the user forthe installation of a low level switch, reservoir temperaturesensor, bottom drain, and so forth.6.1.4.5 If the reservoir is positioned so that the contentscannot be visually checked for aeration b
22、y removing the lid, afluid-tight glass viewing port may be located in the side of thereservoir.6.1.5 Outlet Pressure Control Valve, Vickers pressure reliefvalve (CT-06-C/500-2000 psi) with either manual or remotecontrol (Item 8, Fig. 1; Fig. 4).6.1.6 Temperature Control Device, suitable for controll
23、ingcoolant flow to the heat exchanger to maintain test fluid at thespecified temperature (Item 11, Fig. 1).6.1.7 Temperature Indicator, (Item 2, Fig. 1) shall have anaccuracy of 61C and shall have an appropriate sensor tomonitor pump inlet temperature.6.1.7.1 To prevent a flow restriction near the p
24、ump inletport, the temperature probe shall have a diameter of not morethan 6 mm (0.25 in.).Description of ItemsItem Number Name Amount Description1 Head Bolt 838-16 3 1-14-in. hex head cap screw, Grade 82 Head Bearing 1 No. 6200, open type3 Pump Head 1 Vickers 240644 Head PackingA1 235 square cut O-
25、ring5 Outer Bushing 1 Conestoga 2882-4E6 Alignment Pin 1 Conestoga 2882-107 Cam RingB1 Conestoga 2882-58 RotorB1 Conestoga 2882-1C9 VaneB12 Conestoga 2882-V12 (12 piece kit)10 Inner Bushing 1 Conestoga 2882-4C11 Pump Body 1 Vickers 18823512 Retaining Ring 1 20-mm steel retaining ring 3AM-1013 Shaft
26、Bearing 1 #6204, open type14 Seal Retainer 1 Vickers 18507815 O-RingA1 223 O-ring16 Shaft SealA1 double lip with garter spring .875 3 1.500 3 .312 rubber clad17 Shaft 1 Conestoga 2882-2A or Vickers 18832818 Key 1 Conestoga 2882-20A or Vickers 161219a Foot Mount 1 Vickers 18823419b Flange Mount 1 Vic
27、kers 18823320 Gasket 1Conestoga 2882-27 or Vickers 2546 not used with Foot Mount (item19a)21 Screw 638-16 378 socket head cap screwASpecify compound.BSpecify size.FIG. 2 Pump ComponentsD 7043 04a36.1.7.2 The test fluid temperature shall be measured within10.2 cm (4 in.) of the pump inlet (Dimension
28、C, Fig. 1). Thesensing probe shall be inserted into the midpoint of flow.NOTE 3Some users have found the addition of a pump outlettemperature sensor to be a useful diagnostic tool. If used, it shall besuitable for 13.8-MPa duty and should be placed in the high pressure linebetween the pump and the r
29、elief valve (Item 18, Fig. 1).6.1.8 Heat Exchanger, (Item 10, Fig. 1). The heat exchangershould be of adequate size and design to remove the excessheat from the test system when using the available coolantsupply.NOTE 4It is suggested that a shell-and-tube-type heat exchanger, ifused, should be conne
30、cted in reverse (the hydraulic fluid is passed throughthe tubes and not around them) so that the interior of the heat exchangerFIG. 3 Cartridge KitFIG. 4 Relief ValveD 7043 04a4can be effectively cleaned between tests.6.1.9 Pressure Indicator (Item 6, Fig. 1), to measure pumpdischarge pressure shall
31、 have an accuracy of at least 60.3 MPa(640 psi) at 13.8 MPa.The gage shall be suitable for 13.8-MPaduty.6.1.9.1 The pressure indicator should be snubbed (Item 7,Fig. 1) to prevent damage from pulsations or sudden fluctua-tions of system pressure.6.1.10 Filter Unit (Item 9, Fig. 1), 3-m (minimum Beta
32、 3ratio of 100) replaceable fiberglass element with housing. Twonew filter elements are required for each test.6.1.10.1 The filter housing shall be non-bypassing and shallbe provided with dual pressure gages (Items 13, Fig. 1)oranother suitable indicator to monitor pressure across the filterto warn
33、of impending collapse of the element.6.1.10.2 If dual pressure gages are used to monitor filterpressure, the rated collapse pressure of the filter element shouldbe known. The collapse pressure should be within the range ofthe gage.6.1.11 Flow Measuring Device, (Item 12, Fig. 1) with anaccuracy of at
34、 least 60.4 L/min (0.1 gpm).6.1.12 While not required, it is suggested that low-level,high-pressure, high-temperature, and low-flow safety switchesbe incorporated into the system.6.1.13 A check should be made to ensure that the flush andtest fluid are not incompatible with hoses, seals, or any other
35、materials in the system.NOTE 5The use of galvanized iron, aluminum, zinc, and cadmiumshould be avoided because of their high potential for corrosion in thepresence of many non-petroleum hydraulic fluids.6.1.14 Flexible Motor Coupling, (Item 4, Fig. 1).6.2 The various components of the test system sh
36、all beplaced in the system as indicated in Fig. 1.6.2.1 The test system shall be arranged and provided withnecessary drain valves so that complete draining is possiblewith no fluid trap areas.6.2.2 Good hydraulics piping practices should be used whenconstructing the test system to avoid air ingestme
37、nt points andflow restrictions.6.2.3 The pump should be mounted so that its internalsurfaces can easily be inspected and cleaned, alignment can bechecked, and the operator has comfortable access when torqu-ing the head.6.2.4 The reservoir shall be located above the pump so thatthe fluid level in the
38、 reservoir will be between 61 and 66 cm(24 to 26 in.) above the center line of the pump when the testsystem is fully charged with test fluid (Dimension A, Fig. 1).6.2.4.1 The reservoir should be mounted so that it can becleaned and filled with ease and the contents may be readilyinspected by removal
39、 of the reservoir lid.6.2.5 The inlet line (from the reservoir to the pump intake)shall have an internal diameter of at least 25 mm (1 in.) andshall have a straight horizontal run of at least 15 cm (6 in.) towhere it connects to the pump inlet port (Dimension B, Fig. 1).If a hose is used, it shall b
40、e rated for vacuum service.NOTE 6Some users have found the addition of a compound pressuregage near the pump inlet port to be a useful diagnostic tool (Item 17, Fig.1). However, exercise care to ensure that any ports added to the inlet linedo not become air ingestment points.NOTE 7When tubing is use
41、d for the pump inlet line, some users preferto use a radius bend instead of an elbow near the pump inlet. If used, thestraight run described in 6.2.5 shall be measured between the end of thebend and the pump inlet port. For optimal flow properties with 25 mmtubing, a 100-mm (4-in.) bend radius is re
42、commended.6.2.6 The high pressure discharge line (from the pump to thepressure control valve) shall be rated for 14-MPa (2000-psi)duty and have a minimum internal diameter of 15 mm (0.6 in.).6.2.7 The fluid return line and fittings (from the pressurecontrol valve to the filter, flow counter, heat ex
43、changer, andreservoir) shall be rated for 3-MPa (400-psi) duty and have aminimum internal diameter of 15 mm (0.6 in.).NOTE 8Some users find the addition of a shut off valve on the returnline (Item 16, Fig. 1) to be a useful addition to the piping since it allowsfilter changes and other system mainte
44、nance to be performed withoutdraining the reservoir.6.2.7.1 (WarningIf a shut-off valve is installed in thefluid return line, the user shall take procedural steps to ensurethat this valve has been opened before the pump is started. Ifthe valve is not opened, low-pressure system components mayrupture
45、.)NOTE 9Some users find the addition of a valve on the pump inlet line(Item 15, Fig. 1) to be a useful addition to the piping since it allows filterchanges and other system maintenance to be performed without drainingthe reservoir. A full flow type of valve with an orifice of at least 25 mm(1 in.) i
46、s recommended.6.2.7.2 (WarningIf a shut-off valve is installed in thepump inlet line, the user shall take procedural steps to ensurethat this valve has been opened before the pump is started. Ifthe valve is not opened, the pump will cavitate.)7. Reagents and Materials7.1 WarningUse adequate safety p
47、rovisions with allsolvents.7.2 Aliphatic Naphtha, Stoddard Solvent, or equivalent issatisfactory. (WarningCombustible. Vapor harmful.)7.3 Precipitation Naphtha (WarningExtremely flam-mable. Harmful if inhaled. Vapors can cause flash fire.)7.4 Isopropanol (Warningflammable.).7.5 WarningIn instances w
48、hen the solvents listed inSection 7 are not effective, alternative solvents may be used. Itis the responsibility of the user to determine the suitability ofalternative solvents and any hazards associated with their use.8. Test Stand Maintenance8.1 Sensors and shut-off switches should be checked peri
49、-odically for proper calibration and operation in accordancewith good engineering practice as determined by the user.8.2 It is recommended that the pump shaft (Item 17, Fig. 2),seals (Items 4, 15, 16, Fig. 2), and bearings (Items 3, 13, Fig.2) be replaced after every five runs (or sooner if high weightloss, vibration, cavitation, or visual deterioration is encoun-tered).8.2.1 Avariety of seal compounds is available for the pump.It is the responsibility of the user to determine the best sealcomposition to use with any given fluid.8.3 Inspect the
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