1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.Copyright 2002 Society of Automotive Engineers, Inc.All rights reserved. No part of this
3、 publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying,recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: 724-776-4970 (o
4、utside USA)Fax: 724-776-0790Email: custsvcsae.orgSAE WEB ADDRESS: http:/www.sae.orgSURFACEVEHICLESTANDARDJ2321REV.DEC2002Issued 2000-03Revised 2002-12Superseding J2321 MAR2000Ship Systems and EquipmentGeneral Specification for FilterElementsHydraulic and Lube Oil Service1. ScopeThis SAE Standard cov
5、ers disposable hydraulic and lube oil filter elements. This document is ageneral performance specification for filter elements and identifies performance criteria and test methods.Associated specification sheets (SAE J2321-1, J2321-2, and J2321-3, etc.) define configuration andperformance requiremen
6、ts for specific elements.1.1 ClassificationSizes, configurations, and part identifying numbers for filter elements shall be as specified inthe applicable specification sheets.2. References2.1 Applicable PublicationsThe following publications form a part of this specification to the extent specifiedh
7、erein. Unless otherwise indicated, the latest version of the applicable publication shall apply.2.1.1 SAE PUBLICATIONSAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.Telephone: (724) 776-4970, Web Address: http:/www.sae.org.SAE J1778Ship Systems and EquipmentHydraulic FluidsRec
8、ommended Practice for HydraulicFluid SelectionSAE J2321-1Disposable Hydraulic Filter Element115 L/min Flow, 1.0 MPa Collapse Pressure,Filtration Ratio = 75 at 6 and 10 mSAE J2321-2Disposable Hydraulic Filter Element190 L/min Flow, 21 MPa Collapse Pressure,Filtration Ratio = 75 at 7 mSAE J2321-3Dispo
9、sable Hydraulic Filter Elements21 MPa Collapse Pressure, Filtration Ratio = 75 at10 m, 75 - 175 L/min2.1.2 NFPA P UBLICATIONSAvailable from National Fluid Power Association, 3333 North Mayfair Road,Milwaukee, WI 53222. Telephone: (414) 778-3344, Web address: http:/. Also available fromANSI (see 2.1.
10、4).NFPA T3.10.8.5Hydraulic Fluid PowerFilter ElementsVerification of Collapse/Burst ResistanceNFPA T3.10.8.7Hydraulic Fluid PowerFilter ElementsMethod for Verifying Flow FatigueCharacteristicsSAE J2321 Revised DEC2002-2-2.1.3 ASTM P UBLICATIONAvailable from the American Society for Testing and Mater
11、ials, 100 Barr Harbor Drive,West Conshohocken, PA 19428-2959. Telephone: (610) 832-4585, Web address: http:/www.astm.org.ASTM A 342Standard Test Methods for Permeability of Feebly Magnetic Materials2.1.4 ISO P UBLICATIONSAvailable from the American National Standards Institute, 25 West 43rd Street,
12、NewYork, NY 10036. Web address: http:/www.ansi.org. Also available from NFPA (see 2.1.2).ISO 2942Hydraulic fluid powerFilter elementsVerification of fabrication integrity and determinationofthe first bubble pointISO 2943Hydraulic fluid powerFilter elementsVerification of material compatibility with
13、fluidsISO 3448Industrial liquid lubricantsISO viscosity classificationISO 3968Hydraulic fluid powerFiltersEvaluation of pressure drop versus flow characteristicsISO 12103-1Road vehiclesTest dust for filter evaluationPart 1: Arizona Test DustISO 16889Hydraulic fluid powerMulti-pass method for evaluat
14、ing filtration performance of a filterelement2.1.5 ASQC PUBLICATIONAvailable from the American Society for Quality Control, 611 East Wisconsin Avenue,Milwaukee, WI 53202. Telephone: (414) 272-8575.ASQC Z1.4Sampling Procedures and Tables for Inspection by Attributes3. DefinitionsThe following definit
15、ions apply throughout this specification.3.1 Filtration RatioFiltration ratio is the ratio of number of particles greater than a given size (x) in the fluidentering the filter element to the number of particles greater than the same size in the fluid leaving the filterelement. The minimum filtration
16、 ratio is the lowest filtration ratio reported for any one of the ten time intervalsincluded in the multi-pass method for evaluating filter performance per ISO 16889, as modified in 5.6.2. (Thefiltration ratio reported for each time interval is determined by averaging the particle counts for the tim
17、einterval.) The filtration ratio as used herein applies to the use of medium test dust in accordance with ISO12103-1 A-3.3.2 Dirt Holding CapacityThe apparent dirt holding capacity is the actual weight (grams) of the contaminantinjected into the filter test system before the terminal pressure drop i
18、s reached. The retained dirt holdingcapacity is the mass of specific particulate contaminants effectively retained by the filter elements whenterminal pressure drop is reached.3.3 Rated FlowThe rated flow is the flow at which the element is tested for efficiency and dirt capacity. Unlessotherwise in
19、dicated, the rated flow specified in the applicable specification sheet is the maximumrecommended flow rate when using a fluid of the specified viscosity.3.4 Terminal Pressure DropTerminal pressure drop is the maximum specified pressure drop permitted acrossthe filter element to achieve the apparent
20、 dirt holding capacity of the element under test condition.3.5 Pressure DropPressure drop is the differential pressure across a filter element as measured underspecified conditions.4. Technical Requirements4.1 Specification SheetsThe requirements for individual elements shall be as specified herein
21、and inaccordance with the applicable specification sheet. In the event of any conflict between the requirements ofthis specification and the specification sheet, the latter shall govern.SAE J2321 Revised DEC2002-3-4.2 First Article TestingFilter elements furnished under this specification shall be p
22、roducts which have beensubjected to and successfully passed the First Article tests specified in Section 5 (see 5.1).4.3 MaterialsUnless otherwise specified in the specification sheet, the filter elements and seals shall beconstructed of materials that are compatible with phosphate ester; water glyc
23、ol; and petroleum base fluidsused in ship systems. (See SAE J1778 for specifications and properties of fluids used in ship systems; aircraftphosphate ester fluid is not used in ship systems).4.3.1 FLUID COMPATIBILITYFilter element materials shall be compatible with fluids containing up to 2% water.S
24、uch contaminated fluid shall not cause degradation of element performance.4.3.2 MAGNETIC MATERIALSWhen specified in the applicable specification sheet, filter elements containingmagnetic materials shall have a relative magnetic permeability of less than 2.0 when tested in accordancewith ASTM A 342.
25、(See 6.4)4.4 Construction4.4.1 FILTER ELEMENT CONFIGURATIONThe filter element configuration shall be as specified in the applicablespecification sheet. Unless otherwise specified, the element shall be designed for flow from outside in. Theelement shall consist of a filter medium that shall be suppor
26、ted to withstand the side and end loads imposedduring testing.4.4.2 DIMENSIONSThe filter elements and associated components supplied to this document shall comply withthe dimensions specified in the applicable specification sheet.4.4.3 ELEMENT COVERINGThe element shall be constructed with a screen o
27、r perforated outer wrap to protect thefilter media pack from damage during handling.4.5 Performance4.5.1 FABRICATION INTEGRITY (BUBBLE POINT)The elements selected for filtration performance and cleanpressure drop tests shall be based on bubble point values as identified in 5.3.3. The change in bubbl
28、e pointvalues before and after testing shall not exceed the amount identified in specific tests.4.5.2 FILTRATION PERFORMANCEThe filter elements when tested as specified in 5.6.2 shall exhibit the followingperformance values:4.5.2.1 Filtration RatioFilter elements when subjected to a multi-pass test
29、in accordance with ISO 16889 asmodified in 5.6.2 shall exhibit a minimum filtration ratio not less than that specified in the applicablespecification sheet for particles of the size indicated in the specification sheet. See 3.1 for definition ofminimum filtration ratio.4.5.2.2 Dirt Holding CapacityA
30、pparent or retained capacity, as applicable, shall be equal to or greater than thevalue specified in the applicable specification sheet at a terminal pressure drop of a value specified in theapplicable specification sheet when the element is subjected to a multi-pass test in accordance with ISO16889
31、 as modified in 5.6.2.4.5.3 CLEAN ELEMENT PRESSURE DROP AT RATED F LOWPressure drop across the element shall be measured atthe kinematic viscosity and rated flow identified in the applicable specification sheet and shall not exceed themaximum pressure drop specified. Pressure drop shall also be meas
32、ured at a kinematic viscosity at leasttwice that identified in the specification sheet and again at a kinematic viscosity less than 50% of thatidentified in the specification sheet. Test measurements shall be made at standard ISO viscosity grades asidentified in ISO 3448 so that suitability of the e
33、lement can be easily determined for various ISO viscositygrade fluids.SAE J2321 Revised DEC2002-4-4.5.3.1 Clean element pressure drop for production elements. For quality conformance inspection, the cleanpressure drop need only be conducted at the viscosity in the applicable specification sheet.4.5.
34、4 FLOW FATIGUEThe filter element shall withstand, without damage, the number of flow fatigue pressurecycles specified in the applicable specification sheet when tested as specified in 5.6.4.4.5.5 COLLAPSE PRESSUREThe filter element shall withstand a collapse pressure equal to or greater than thevalu
35、e specified in the applicable specification sheet when tested as specified in 5.6.5.4.5.6 REVERSE F LOWThe filter element shall withstand, without visible structural damage or significant reductionof bubble point, reverse differential pressure surges and flow of a value specified in the applicablesp
36、ecification sheet when tested as specified in 5.6.6.4.5.7 MEDIA M IGRATION UNDER VIBRATION CONDITIONSMedia migration and contaminants from the filter elementshall not exceed value specified in the specification sheet when tested as specified in 5.6.7.4.5.8 PULL TEST (MATERIAL COMPATIBILITY) REQUIREM
37、ENTSThe element shall withstand an axial pull test endload as specified in the applicable specification sheet without loss of fabrication integrity. The pull test endload values in Table 1 shall apply if the specification sheet does not identify a specific value:4.6 Identification MarkingEach filter
38、 element shall be clearly, permanently, and correctly marked on the endcap and the following information shall be provided:a. Filter element part number (as identified on the specification sheet)b. Manufacturers part or drawing numberc. Manufacturers name or trademarkd. Identify as “Non-Cleanable”e.
39、 Manufacturing date or Traceable Lot Number4.7 WorkmanshipThe filter elements shall conform to this document and be free of sharp edges or defects thatmay affect their suitability for the service intended. Dimensions and tolerances shall be as identified in thespecification sheet for individual elem
40、ent configurations.5. Quality Assurance5.1 First Article InspectionUnless otherwise specified in the contract or purchase order, the manufacturer isresponsible for the performance of all tests and inspection requirements as specified herein. Except asotherwise specified, the manufacturer may use its
41、 own or any other commercial facilities acceptable to thepurchaser. The purchaser has the right to perform any inspection set forth in the specification whenever it isdeemed necessary to assure that the item conforms to prescribed requirements. First article inspection shallconsist of the examinatio
42、n and tests specified in Table 2 and shall be performed on the first article shipment ofthe product to a purchaser. For a given element, the test sequence shall be as shown in Table 2. The order oftesting of the filter elements is not important. Six elements are recommended for first article testing
43、. However,four elements may be used if two of the elements subjected to fluid compatibility are subsequently subjected tothe filtration test prior to subjecting the elements to collapse tests.TABLE 1AXIAL PULL TEST END LOADMaximum Element DiameterMinimum AxialPull TestValuesNMinimum AxialPull TestVa
44、lueskgfMinimum AxialPull TestValueslbf100 mm 147 N 15 kgf 33 lbfSAE J2321 Revised DEC2002-5-5.2 First Article Bubble Point TestsTests shall be conducted in accordance with 5.6.1 as modified herein. Forthe three elements to be subjected to material compatibility in accordance with 5.6.8, the bubble p
45、oint test foreach element shall be conducted in the fluid in which the element is to be tested for fluid compatibility.5.3 Quality Conformance InspectionSampling for quality conformance inspection shall be as specified (see5.3.1, 5.3.2, 5.3.3, and 5.3.4). Except when otherwise required by this docum
46、ent, the requirements of ASQCZ1.4 for single sampling shall apply with an acceptance criteria of zero defective.5.3.1 SAMPLING FOR EXAMINATION AND TESTSFor the purpose of sampling, a lot is defined as filter elements ofthe same part number produced at one facility, fabricated by the same process, wh
47、ich are constructed over aperiod of time not to exceed 90 days. As a minimum, the manufacturer shall select a random sample quantityfrom each lot of filter elements in accordance with Table 3 and inspect them in accordance with Table 4.TABLE 2FIRST ARTICLE INSPECTION AND TESTSExamination and TestsRe
48、quirementParagraphTestParagraphAll ElementsExamination 4.4, 4.6, and 4.7 5.5Bubble point (initial) 4.5.1 5.2, 5.6.1Elements No. 1 and 2 (Phosphate ester and Water glycol fluid compatibility)Fluid compatibility 4.3, 4.3.1 5.6.8Pull test 4.5.8 5.6.9Bubble point 4.5.1, 4.5.8 5.6.1Element collapse press
49、ure 4.5.5 5.6.5Element No. 3 (Petroleum base fluid compatibility)Fluid compatibility (petroleum base fluid) 4.3,4.3.1 5.6.8Pull test 4.5.8 5.6.9Bubble Point 4.5.1, 4.5.8 5.6.1Clean element pressure drop test 4.5.3 5.6.3Flow fatigue 4.5.4 5.6.4Collapse pressure test 4.5.5 5.6.5Element No. 4Magnetic permeability (when required) 4.3.2 5.7Bubble Point 4.5.1 5.6.1Media migration under vibration conditions 4.5.7 5.6.7Reverse flow 4.5.6 5.6.6Bubble point 4.5.1 5.6.1Element No. 5 and 6 (Lowest bubble po
