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 2009 SAE InternationalAll rights reserved. No part of this publication may be
3、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 (outside USA)Fax: 724-
4、776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSURFACEVEHICLESTANDARDJ20-2REAF.JUN2009Issued 2001-11Reaffirmed 2009-06Superseding J20-2 NOV2001Coolant HoseNormal Service Type Convoluted, Wire Support Hose(Supplement to SAE J20 for Government Use Replacing Part of MS51008)1. S
5、copeThis SAE Standard provides ordering information for any SAE 20R5 hose type (such as “EC, HT, LT”or combination thereof.) This is a wire-reinforced hose for coolant circulating systems of automotive typeengines. This hose consists of a convoluted section with plain ends. The hose shall contain a
6、wire helix orhelices in the convoluted section. It is a supplement for Government use but may be used by others.2. References2.1 Applicable PublicationsThe following publications form a part of this specification to the extent specifiedherein. Unless otherwise indicated, the latest version of SAE pu
7、blications shall apply.2.1.1 SAE PUBLICATIONAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE J20Coolant System Hoses2.1.2 ISO PUBLICATIONSAvailable from ANSI, 11 West 42nd Street, New York, NY 10036-8002.ISO 9001Quality systemsModel for quality assurance in design, developme
8、nt, production, installationand servicing2.1.3 GOVERNMENT PUBLICATIONSAvailable from U. S. Government, DOD SSP, Subscription Service Division,Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.Federal Specification ZZ-H-428Hose; Non-Metallic and Hose; Preformed: (for Coolant Systems ofAuto
9、motive and Other Liquid-Cooled Engines)Military Drawing MS51008Hose, Preformed: Flexible, Engine Coolant, 1-1/4, 1-1/2, 1-3/4, 2, 2-1/4, 2-1/2, 3 ID2.1.4 AUTOMOTIVE INDUSTRY PUBLICATIONAvailable from AIAG, 26200 Lasher Road, Suite 200, Southfield, MI48034-7100.QS 9000Quality System RequirementsSAE J
10、20-2 Reaffirmed JUN2009-2-3. Technical RequirementsThe following requirements are in addition to the requirements of SAE J20.3.1 CertificationManufacturers/suppliers of hose to the Government must be ISO 9001 or QS-9000 certifiedand provide their certification to provide this SAE J20/2 hose.3.2 Leng
11、thsThe lengths specified in Table 1 shall comply with SAE J20 Table 2 tolerances.3.3 Inside DiametersThe inside diameters specified in Table 2 shall comply with SAE J20 tolerances.3.4 Wall Gauge RangeWall gauge range shall comply with SAE J20.3.5 MarkingFor U.S. Government use only, marking shall co
12、nsist of the following on one or both cuffs:a. Part Identification Number (see 4.2)b. Manufacturers identification code (CAGE) or trademark symbolc. Month and year of manufactureTABLE 1NOMINAL LENGTHSNominal LengthmmActual Lengthmm (in)127 127.0 (5.00)152 152.4 (6.00)178 177.8 (7.00)203 203.2 (8.00)
13、229 228.6 (9.00)254 254.0 (10.00)280 279.4 (11.00)305 304.8 (12.00)356 355.6 (14.00)406 406.4 (16.00)457 457.2 (18.00)508 508.0 (20.00)550 550.0 (22.00)610 609.6 (24.00)660 660.4 (26.00)711 711.2 (28.00)762 762.0 (30.00)813 812.8 (32.00)864 863.6 (34.00)914 914.4 (36.00)965 965.2 (38.00)TABLE 2NOMIN
14、AL INSIDE DIAMETERS (ID)Nominal IDmmActual IDmm (in)25 25.40 (1.00)32 31.75 (1.25)38 37.50 (1.50)44 44.45 (1.75)51 50.80 (2.00)57 57.15 (2.25)64 63.50 (2.50)76 76.20 (3.00)SAE J20-2 Reaffirmed JUN2009-3-3.5.1 If there is insufficient space on the hose for the required marking due to small ID hose or
15、 too short a straightlength, a label carrying the required information taped around the individual pieces of hose in lieu of theprevious method of marking.3.5.2 Marking for non-Government users shall be agreed upon by the customer and manufacturer.4. Notes4.1 Intended UseThe flexible, wire-reinforce
16、d coolant hose is intended for use in automotive cooling systems. Itis commonly known as universal type hose.4.2 Part Identification NumberPart numbers shall be constructed as indicated in Figure 1.FIGURE 1PART IDENTIFICATION NUMBER4.3 Government Specification ReplacementThis document is a replaceme
17、nt for portions of FederalSpecification ZZ-H-428, “Hose; Non-Metallic and Hose; Preformed: (for Coolant Systems of Automotive andOther Liquid-Cooled Engines.)” This document is also a replacement for part of Military Drawing MS51008,“Hose, Preformed: Flexible, Engine Coolant, 1-1/4, 1-1/2, 1-3/4, 2,
18、 2-1/4, 2-1/2, 3 ID.”4.4 Cross Reference InformationTable 3 shows the relationship between designations in ZZ-H-428 and thisdocument. MS51008 only provided part numbers for ZZ-H-428, Type V, Grade A, Class 2 hose. Those partnumbers are now replaced by SAE J20/2ECLT Class A part numbers.4.5 Other Siz
19、esSizes and tolerances other than those listed in this document shall be agreed upon by thesupplier and purchaser. The requirements of SAE J20 shall be the met.4.6 Key WordsAutomotive, flexible hose, universal hose.PREPARED BY THE SAE COOLANT HOSE COMMITTEEREAFFIRMED BY THE SAE NON-HYDRAULIC HOSE CO
20、MMITTEETABLE 3CROSS REFERENCE DESIGNATIONJ20DesignationJ20 ClassZZ-H-428 TypeZZ-H-428 GradeZZ-H-428 ClassSAE-J20/2ECLT A V A 2SAE-J20/2ECLT A V A 3SAE-J20/2EC B V B 1SAE-J20/2EC C V B 2SAE-J20/2EC D-1 V B 3SAE-J20/2EC D-3 V B 4SAE J20-2 Reaffirmed JUN2009RationaleNot applicable.Relationship of SAE S
21、tandard to ISO StandardNot applicable.ApplicationThis SAE Standard provides ordering information for any type SAE J20R2 hose. It is asupplement for Government use but may be used by othersReference SectionSAE J20Coolant System HosesISO 9001Quality systemsModel for quality assurance in design, develo
22、pment, production,installation and servicingFederal Specification ZZ-H-428Hose; Non-Metallic and Hose; Preformed: (for Coolant Systems ofAutomotive and Other Liquid-Cooled Engines)Military Drawing MS51008Hose, Preformed: Flexible, Engine Coolant, 1-1/4, 1-1/2, 1-3/4, 2, 2-1/4, 2-1/2,3 IDQS 9000Quality System RequirementsDeveloped by the SAE Coolant Hose Committee
