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1、CUSTODIAN: SAE G-3/G-3D AS4804 AEROSPACE STANDARD HOSE, AIR DUCT, FLEXIBLE, SILICONE-COATED FABRIC, EXTERNAL NYLON HELIX, LOW-NOISE AS4804 SHEET 1 OF 3 FEDERAL SUPPLY CLASS 4720 THIRD ANGLE PROJECTION ISSUED 1993-02 REVISED 1996-05 REAFFIRMED 2007-01 REV. A PROCUREMENT SPECIFICATION: /11/ AS1501 REV
2、. A Table 1- PERFORMANCE CRITERIA OPERATING TEMPERATURE F R/5/ BEND RADIUS MIN HOSE LEAKAGE SCFM/FT/IN DIA JOINT LEAKAGE /8/ SCFM/IN DIA -65 TO +2501.0 X DIA.015.1 Copyright 2007 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or tra
3、nsmitted, 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: 724-776-0790 Email: CustomerServicesae.org SAE
4、WEB ADDRESS: http:/www.sae.org RATIONALE THIS DOCUMENT HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE 5-YEAR REVIEW POLICY. 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 entirely vo
5、luntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, 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
6、 written comments and suggestions. Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 19:47:57 MSTNo reproduction or networking permitted without license from IHS -,-,- AS4804 AEROSPACE STANDARD HOSE, AIR DUCT, FLEXIBLE
7、, SILICONE-COATED FABRIC, EXTERNAL NYLON HELIX, LOW-NOISE AS4804 SHEET 2 OF 3 REV. A REV. A NOTES: 1. MATERIAL: SILICONE-COATED FIBERGLASS FABRIC, EXTERNALLY BONDED ON NYLON HELIX REINFORCEMENT. 2. FINISH: AS MANUFACTURED, COLOR: RED. 3. MARKING: AS1501 AS APPLICABLE, INK JET OR PAD PRINT. 4. HOSE B
8、ENDABILITY IS NOT REQUIRED IN THE HELIX TERMINATION AREA. /5/ R IS THE MINIMUM BEND RADIUS THAT THE HOSE IS REQUIRED TO BEND UNIFORMLY, WHEN TESTED IN ACCORDANCE WITH AS1501. 6. HOSE CUFF ENDS SHALL BE SUITABLE FOR INSTALLATION OVER A RIGID TUBE END WITH MS33660 TYPE “A” BEADS, AND USING NAS1922 CLA
9、MPS OR EQUIVALENT. 7. INNER AND OUTER SURFACE SHALL BE CLEAN TO FACILITATE SEALING AND HOSE INSTALLATION WITH PRESSURE-SENSITIVE TAPE AND/OR CLAMPING. /8/ JOINT LEAKAGE PER END, USING CLAMPS AS SPECIFIED IN AS1501. /9/ CUFFS IN SIZES 6.25 in AND OVER SHALL HAVE BEADED ENDS, SEE AS1501. 10. DIMENSION
10、S IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS .010. (R) TABLE 2 - PRESSURES, SIZES, LENGTHS, AND WEIGHTS HOSE INSIDE DIAMETER MAXIMUM PRESSURE PSI NEGATIVE PRESSURE PSI HOSE LENGTH MINIMUM HOSE LENGTH MAXIMUM BODY MAXIMUM LB/IN/IN DIA CUFF MAXIMUM LB/IN DIA (NO CODE) CUFF MA
11、XIMUM LB/IN DIA (“A“)/13/ .50 TO 1.00 1.25 TO 2.00 2.25 TO 3.00 3.25 TO 4.00 4.25 TO 5.00 5.25 TO 6.00 6.25 TO 8.00 8.25 TO 10.00 10.25 TO 12.00 13 7 5 4 3 2 2 2 2 .5 .5 .5 .5 .5 .5 .5 .5 .5 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 240.00 240.00 240.00 240.00 240.00 240.00 240.00 240.00 240.00 .
12、0042 .0047 .005 .005 .007 .007 .013 .015 .017 - - - - - - - - - .016 .012 .013 .013 .017 .017 .017 TABLE 3 - HOSE LENGTH INCREMENTS L HOSE LENGTH AVAILABLE LENGTH INCREMENT L LENGTH TOLERANCE 4.00 TO 12.00 12.50 TO 24.00 24.50 TO 60.00 60.50 TO 96.00 97.00 TO 144.00 145.00 TO 240.00 .25 .50 .50 .50
13、1.00 1.00 + .25/-.00 + .50/-.00 + .75/-.00 +1.00/-.00 +1.50/-.00 +2.00/-.00 (R) TABLE 4 - PITCH, NYLON HELIX HOSE INSIDE DIAMETER P (NO CODE) P (“A“) T MAX (NO CODE) T MAX (A“)/13/ .500 TO 1.000 1.250 TO 2.000 2.250 TO 3.000 3.250 TO 5.000 5.250 TO 8.000 8.250 TO 12.000 .237 TO - .300 TO - - TO - -
14、TO - - TO - - TO - .237 TO .390 .300 TO .462 .340 TO .543 .330 TO .632 .515 TO .750 .587 TO .863 - - - - - - .125 .135 .153 .180 .243 .320 Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 19:47:57 MSTNo reproduction o
15、r networking permitted without license from IHS -,-,- AS4804 AEROSPACE STANDARD HOSE, AIR DUCT, FLEXIBLE, SILICONE-COATED FABRIC, EXTERNAL NYLON HELIX, LOW NOISE AS4804 SHEET 3 OF 3 REV. A REV. A NOTES (CONTINUED): /11/ THIS PRODUCT SHALL BE QUALIFIED IN ACCORDANCE WITH AS1501. USERS OF THIS STANDAR
16、D ARE ADVISED TO CONTROL SOURCE APPROVALS BY STANDARD PAGE SUPPLEMENT OR SIMILAR MEANS. 12. NOISE CHARACTERISTIC OF THIS HOSE IS EQUAL TO OR LOWER THAN AS1544. /13/ THE CODE LETTER “A” DESIGNATES AS4804 AIR DUCTS THAT HAVE PASSED QUALIFICATION TESTS TO AS1501 PLUS A PERIODIC HUMIDITY TEST AS SPECIFI
17、ED IN NOTE 14. NO CODE LETTER DESIGNATES NO HUMIDITY TEST REQUIREMENT, THE PREVIOUS CONSTRUCTION. 14. HUMIDITY TEST: (R) a. REQUIREMENT - THERE SHALL BE NO SEPARATION OF THE NYLON HELIX FROM THE FABRIC, NO KINKING OR COLLAPSE OF THE DUCT, OR OVALING TO A REDUCTION IN CROSS SECTION OF 5% OR MORE, AS
18、DEFINED IN AS1501. SUPPLIERS SHALL CONDUCT THIS TEST PERIODICALLY, AT INTERVALS NOT TO EXCEED ONE YEAR. THE LARGEST HOSE DIAMETER FOR EACH NYLON HELIX DIAMETER AND PITCH CONSTRUCTION SHALL BE TESTED. THE SPECIMENS SHALL HAVE A 24 in MINIMUM LENGTH. b. PROCEDURE - THE DUCT SPECIMEN SHALL BE IMMERSED
19、FOR A PERIOD OF 24 h MINIMUM IN WATER OF 55 TO 72 F TEMPERATURE. WITHIN 1 h FOLLOWING THE IMMERSION CYCLE THE DUCT SHALL BE BENT OVER A 180 ARC TO THE NATURAL (“) OR MINIMUM SPECIFIED BEND RADIUS, WHICHEVER IS SMALLER, AND INSPECTED FOR FAILURE. THE SPECIMEN SHALL THEN BE PROOF PRESSURE TESTED FOR 2
20、 h MINIMUM TO A NEGATIVE PRESSURE OF -1 psig +0/-.25 psig, AND INSPECTED FOR FAILURE. (*)NOTE: THE NATURAL BEND RADIUS OCCURS WHEN THE HOSE IS BENT WITHOUT RESTRAINTS TO THE SMALLEST ARC THAT IT WILL ASSUME AT WHICH THE NYLON COILS IN THE BEND AREA CONTACT EACH OTHER. IT MAY BE SMALLER THAN THE MINI
21、MUM SPECIFIED BEND RADIUS. 15. THE (R) 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 STANDARD. 16. SUPERSESSION: AS4804-()-() IS INACTIVE FOR DESIGN AND PROCUREMENT AS OF THE DATE OF (R) ISSUE OF RE
22、VISION A. AS4804-()-() IS SUPERSEDED BY AS4804-()-()A. INVENTORIED PARTS CONFORMING TO THE PREVIOUS (NO LETTER) CODE MAY BE USED TO DEPLETION. (R) Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 19:47:57 MSTNo reproduction or networking permitted without license from IHS -,-,-