1、 AEROSPACE STANDARD (R) HOSE ASSEMBLY, METAL - MEDIUM PRESSURE,FLARELESS, WELDED, STRAIGHT TO 90 AS138Copyright 2009 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical,
2、 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: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org ISSUED 1977-02 REAFFIRMED 20
3、07-07REVISED 2009-03THIRD ANGLE PROJECTION CUSTODIAN: G-3/G-3D REV.G FEDERAL SUPPLY CLASS AS138 SHEET 1 OF 4 REV. G PROCUREMENT SPECIFICATION: /2/ AS1424SAE Technical Standards Board Rules provide that: “This report ispublishedby SAE toadvance thestate of technicalandengineering sciences. Theuse oft
4、his report is entirely voluntary, andits applicability and suitability forany particular use,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay bereaffirmed, revised, orcancelled. SAE
5、invites yourwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS138GRATIONALE REVISED NOTE 2 TO REFLECT ISSUANCE OF PRI QPL, REVISED NOTE 4 OPERATING TEMPERATURE LIMITS TO CONFORM TO AS1424 PROCUREME
6、NT SPECIFICATION AND ADDED HOSE INNER TUBE DESIGNATION TO PART NUMBER. FIGURE 1 - HOSE ASSEMBLY FIGURE 2 - LUBRICANT APPLICATION AREA /14/ /15/ Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPA
7、CE STANDARD AS138 SHEET 2 OF 4 REV. G (R) HOSE ASSEMBLY, METAL - MEDIUM PRESSURE, FLARELESS, WELDED, STRAIGHT TO 90 TABLE 1 - ASSEMBLY DIMENSIONS HOSE C ASSEMBLY HOSE B MIN THREAD T SIZE SIZE A1 A2 GAGE THRU D D E (H) R PER AS8879 (ISO 3161)CODE (REF) MAX MAX BASIC /8/ MIN MAX MAX NOM (REF) (REF) 04
8、 .250 1.25 1.18 .2930 .141 .83 1.08 .900 .40 .250 .4375-20UNJF-3B 05 .312 1.38 1.24 .3500 .197 .84 1.09 1.100 .40 .312 .5000-20UNJF-3B 06 .375 1.38 1.31 .4120 .250 .98 1.23 1.200 .40 .375 .5625-18UNJF-3B 08 .500 1.56 1.50 .5600 .360 1.23 1.54 1.300 .47 .500 .7500-16UNJF-3B 10 .625 1.75 1.75 .6730 .4
9、55 1.56 1.87 1.500 .53 .625 .8750-14UNJF-3B 12 .750 1.94 2.06 .8100 .568 1.67 2.05 1.740 .53 .750 1.0625-12UNJ-3B 16 1.000 2.12 2.50 1.0620 .760 1.84 2.22 2.300 .53 1.000 1.3125-12UNJ-3B 20 1.250 2.38 2.97 1.3160 .920 2.09 2.59 2.850 .54 1.250 1.6250-12UNJ-3B TABLE 2 - ASSEMBLY LENGTH TOLERANCE HOSE
10、 ASSEMBLY LENGTH LENGTH TOLERANCE UNDER 10 in .062 in 10 TO 36 in EXCLUSIVE .125 in 36 TO 50 in EXCLUSIVE .250 in 50 in AND OVER 1% TABLE 3 - HOSE ASSEMBLY ROOM TEMPERATURE PHYSICAL CHARACTERISTIC (REF) /5/ HOSE OPERATING PROOF BURST SIZE PRESSURE PRESSURE PRESSURE CODE PSI NOM PSI MIN PSI MIN 04 20
11、00 3000 8000 05 1800 2700 720006 1600 2400 6400 08 1400 2100 560010 1200 1800 4800 12 1050 1575 420016 800 1200 3200 20 550 825 2200 TABLE 4 - SPHERICAL BALL SIZE FOR DETERMINING MINIMUM HOSE ASSEMBLY ID /8/ HOSE SIZE STRAIGHT FITTING ELBOW FITTING 04 .127 .120 05 .177 .167 06 .225 .212 08 .324 .306
12、 10 .410 .387 12 .511 .483 16 .684 .646 20 .828 .782 TABLE 5 - WEIGHTS (MAX) HOSE HOSE STANDARD FITTING (LB) STANDARD FITTING (LB) SIZE LB/IN STRAIGHT 90 ELBOW -04 .016 .05 .05 -05 .018 .07 .08 -06 .020 .08 .09 -08 .028 .13 .15 -10 .038 .20 .24 -12 .042 .39 .44 -16 .058 .52 .68 -20 .072 .79 1.02 Cop
13、yright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD AS138 SHEET 3 OF 4 REV. G (R) HOSE ASSEMBLY, METAL - MEDIUM PRESSURE, FLARELESS, WELDED, STRAIGHT TO 90 NOTES: /1/ MATERIALS: CLASS “A”
14、: INNER TUBE - CORROSION RESISTANT STEEL TYPE 321 BRAID - CORROSION RESISTANT STEEL TYPE 321 BRAID RETAINERS - CORROSION RESISTANT STEEL TYPE 321 OR 347 FITTING COMPONENTS - NICKEL ALLOY TYPE 625 OR 718 CLASS “B”: INNER TUBE - NICKEL ALLOY TYPE 625 BRAID - CORROSION RESISTANT STEEL TYPE 321 BRAID RE
15、TAINERS - CORROSION RESISTANT STEEL TYPE 321 OR 347 FITTING COMPONENTS - NICKEL ALLOY TYPE 625 OR 718 CLASS “N”: INNER TUBE - NICKEL ALLOY TYPE 625 BRAID - CORROSION RESISTANT STEEL TYPE 321 BRAID RETAINERS - CORROSION RESISTANT STEEL TYPE 321 OR 347 FITTING COMPONENTS - CORROSION RESISTANT STEEL TY
16、PE 321 OR 347 CLASS “S”: INNER TUBE - CORROSION RESISTANT STEEL TYPE 321 BRAID - CORROSION RESISTANT STEEL TYPE 321 BRAID RETAINERS - CORROSION RESISTANT STEEL TYPE 321 OR 347 FITTING COMPONENTS - CORROSION RESISTANT STEEL TYPE 321 OR 347 /2/ PROCUREMENT SPECIFICATION: AS1424 EXCEPT AS SPECIFIED IN
17、THIS STANDARD. PRODUCT SUPPLIED TO THIS SPECIFICATION SHALL BE MANUFACTURED AND ASSEMBLED BY AN ACCREDITED MANUFACTURER LISTED IN THE PERFORMANCE REVIEW INSTITUTE (PRI) QUALIFIED PRODUCTS LIST (QPL) PRI-QPL-AS1424 FOR THIS STANDARD. SEE FOR CURRENT QPL ONLINE. 3. MARKING SHALL BE PER AS1424 ON A ST
18、AINLESS STEEL BAND NOT OVER 1.0 in WIDE OR ON THE END FITTINGS. THE CHARACTERS SHALL BE A MINIMUM OF .060 HIGH. THE BAND SHALL BE SO DESIGNED AS TO REMAIN TIGHT ON THE HOSE TO PREVENT RELATIVE MOTION AND CHAFING. IT SHALL BE OF SUFFICIENT STRENGTH TO PREVENT REMOVAL BY HAND. 4. THESE ASSEMBLIES ARE
19、INTENDED FOR USE IN LOW AND MEDIUM PRESSURE PNEUMATIC SYSTEMS UP TO 800 F MAX FOR CLASS “A” AND “S” AND 800 F WITH EXCURSIONS TO 1200 F FOR CLASS “B” AND “N”. MAXIMUM RATED OPERATING PRESSURE IS DEPENDENT ON AMBIENT OPERATING TEMPERATURE AND CAN BE DETERMINED FROM AS1424. /5/ SEE AS1424 FOR PRESSURE
20、S AT ELEVATED TEMPERATURE. 6. CONSTRUCTION AND PERFORMANCE PER AS1424. FITTINGS SHALL BE PERMANENTLY ATTACHED TO THE HOSE. /7/ LENGTH “L” IS A FOUR DIGIT NUMBER OF WHICH THE FIRST THREE DIGITS DESCRIBE THE HOSE ASSEMBLY LENGTH IN WHOLE INCHES, AND THE FOURTH DIGIT, IN FRACTION OF AN INCH IN EIGHTHS.
21、 LENGTH “L” IS MEASURED FROM “GAGE POINT” TO “GAGE POINT”. SEE TABLE 2 FOR ASSEMBLY LENGTH TOLERANCE. /8/ A TRUE CIRCULAR CROSS SECTION IS NOT REQUIRED THROUGH THE FITTING ID. HOWEVER, THE APPLICABLE, OR LARGER, BALL DIAMETER LISTED IN TABLE 4 MUST BE CAPABLE OF PASSING THROUGH THE ASSEMBLY. 9. DIME
22、NSIONS AND TOLERANCING: ASME Y14.5M-1994. 10. THIS PART STANDARD TAKES PRECEDENT IN CASE OF CONFLICT. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AEROSPACE STANDARD AS138 SHEET 4 OF 4 REV. G (R)
23、HOSE ASSEMBLY, METAL - MEDIUM PRESSURE, FLARELESS, WELDED, STRAIGHT TO 90 11. EXAMPLE OF PART NUMBER: AS138 -08 S 1 - 0244 L SOLID FILM LUBRICANT /14/ /15/ - IF REQUIRED FRACTIONAL LENGTH IN EIGHTS OF AN INCH /7/ LENGTH IN WHOLE INCHES /7/ HOSE INNER TUBE TYPE /17/ /18/ HOSE MATERIAL CLASS /1/ /12/
24、BASIC HOSE ASSEMBLY SIZE SEE TABLE 1 BASIC PART NUMBER /12/ IF NO MATERIAL CLASS IS DESIGNATED IN ASSEMBLY PART NUMBERS ISSUED PRIOR TO REVISION B, CLASS “S” SHALL BE SUPPLIED. /13/ A CLASS “N” ASSEMBLY MAY BE SUPPLIED IN LIEU OF CLASS “S” TO MEET AS1424 REQUIREMENTS. /14/ SUFFIX LETTER “L” (IF REQU
25、IRED): APPLY A SOLID FILM LUBRICANT TO THE SEAL AND SHOULDER AREA OF THE NAS1760 END AND TO THE ENTIRE INTERNAL SURFACES OF THE NUT AND NUT RETAINING WIRE (IF USED). OVERSPRAY ON THE EXTERNAL FITTING END AND EXTERNAL NUT SURFACE IS PERMISSIBLE. SEE FIGURE 2. SOLID FILM LUBRICATED ENDS SHALL MEET THE
26、 REQUIREMENTS OF NOTE /16/. /15/ SUFFIX LETTER “P” (IF REQUIRED): APPLY A SILVER PLATED FILM PER AMS2410, .0003-.0006 THICK, TO THE SEAL AND SHOULDER AREA OF THE NAS1760 END AND TO THE ENTIRE INTERNAL SURFACES OF THE NUT AND NUT RETAINING WIRE (IF USED). PLATING ON THE EXTERNAL FITTING END AND EXTER
27、NAL NUT SURFACE IS PERMISSIBLE. SEE FIGURE 2. SILVER PLATED ENDS SHALL MEET THE REQUIREMENTS OF NOTE /16/. /16/ SOLID FILM LUBRICATED, OR SILVER PLATED, FITTING END SHALL NOT EXHIBIT GALLING AFTER BEING SUBJECTED TO THE HIGH TEMPERATURE TORQUE TEST AS DEFINED IN AS1424. /17/ HOSE INNER TUBE TYPE: TY
28、PE “1”: HELICAL INNER TUBE, SEAMLESS OR WELDED AND REDRAWN TUBE MATERIAL TYPE “2”: ANNULAR INNER TUBE, SEAMLESS OR WELDED AND REDRAWN TUBE MATERIAL TYPE “3”: HELICAL INNER TUBE, AS-WELDED TUBE MATERIAL TYPE “4”: ANNULAR INNER TUBE, AS-WELDED TUBE MATERIAL /18/ IF NO HOSE INNER TUBE TYPE IS DESIGNATE
29、D IN ASSEMBLY PART NUMBER ISSUED PRIOR TO REVISION G, TYPE 2 SHALL BE SUPPLIED 19. A CHANGE BAR ( l ) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER IN LOCATING AREAS WHERE TECHNICAL REVISIONS, NOT EDITORIAL CHANGES, HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS DOCUMENT. AN (R) SYMBOL
30、 TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT, INCLUDING TECHNICAL REVISIONS. CHANGE BARS AND (R) ARE NOT USED IN ORIGINAL PUBLICATIONS, NOR IN DOCUMENTS THAT CONTAIN EDITORIAL CHANGES ONLY. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
