1、 AEROSPACE STANDARD HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE,METAL BRAID, MEDIUM PRESSURE, FLARELESS, STRAIGHT TO 45 AS648Copyright 2011 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, elect
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3、2-06REAFFIRMED 2007-07 REVISED 2011-06THIRD ANGLE PROJECTION CUSTODIAN: REV.C FEDERAL SUPPLY CLASS 4720 AS648 SHEET 1 OF 7 REV. C PROCUREMENT SPECIFICATION: SAE Technical Standards Board Rules provide that: “This report ispublishedby SAE toadvance thestate of technicalandengineeringsciences.The useo
4、fthis reportisentirelyvoluntary, andits applicability and suitability forany particular use,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreportat least every five years at which time itmay bereaffirmed,revised,orcancelled.SAE invit
5、es yourwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS648C RATIONALE ESTABLISH CUFF DIMENSIONAL REQUIREMENTS FOR INTEGRAL FIRE SLEEVE ON HOSE AND SLEEVE CODE H & J CONFIGURATIONS, FOR STANDARIZA
6、TION PURPOSES. FIGURE 1 - HOSE ASSEMBLY FIGURE 2 - ABRASION SLEEVE ATTACHMENT FIGURE 3 - GAGE POINT - SEE TABLE 7 /19/ FIGURE 4 SEE TABLE 8 /27/ AEROSPACE STANDARD AS648 SHEET 2 OF 7 REV. C HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, METAL BRAID, MEDIUM PRESSURE, FLARELESS, STRAIGHT TO 45 TABLE 1 DIMENS
7、IONS AEROSPACE STANDARD AS648 SHEET 3 OF 7 REV. C HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, METAL BRAID, MEDIUM PRESSURE, FLARELESS, STRAIGHT TO 45 TABLE 2 - TOLERANCES HOSE ASSEMBLY LENGTH TOLERANCE UNDER 18 IN 18 TO 36 IN EXCLUSIVE 36 TO 50 IN EXCLUSIVE 50 IN AND OVER .125 .250 .500 1% TABLE 3 - HOS
8、E AND SLEEVE CODES HOSE OR SLEEVE CODE SLEEVE MATERIAL TEMP. LIMIT F - A B C E F G H J K L (-) INDICATES HOSE ONLY, NO SLEEVE (AS639) ABRASION SLEEVE TUBULAR (PTFE - AS1291 - CODE B) /6/ ABRASION SLEEVE COIL (NYLON AS1294) /7/ FIRE SLEEVE (AS1072 SIL-FG) (15 MIN) /8/ /9/ /13/ ABRASION SLEEVE SHRINK-
9、ON (FEP) /11/ ABRASION SLEEVE SHRINK-ON (POLYOLEFIN AS1073 - CODE B) /11/ FIRE SLEEVE (AS1072 SIL-FG) (5 MIN) /8/ /9/ /12/ FIRE SLEEVE INTEGRAL SILICONE (AS1723) (15 MIN) /13/ /27/ FIRE SLEEVE INTEGRAL SILICONE (5 MIN) /12/ /27/ INTEGRAL ABRASION SLEEVE (BRAIDED) POLYESTER /10/ ABRASION SLEEVE COIL
10、(PTFE - AS1293) /7/ 450 450 275 450 350 275 450 450 450 300 450 TABLE 4 - HOSE AND SLEEVE OUTSIDE DIAMETERS AEROSPACE STANDARD AS648 SHEET 4 OF 7 REV. C HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, METAL BRAID, MEDIUM PRESSURE, FLARELESS, STRAIGHT TO 45 TABLE 5 - HOSE WEIGHT MAX. ALL OTHERS TABLE 6 - SLE
11、EVE LENGTH HOSE SIZE LENGTH .188, .250, .313, .375 .500, .625 .750, 1.000 1.250, 1.500 2.00 .25 2.50 .25 3.00 .25 4.00 .25 TABLE 7 - DIMENSION H (SEE FIGURE 3) /19/ SIZE CODE H J 3 .085 .0601 4 .062 .044 5 .058 .041 6 .059 .042 8 .064 .045 10 .078 .055 12 .069 .049 16 .132 .093 20 .090 .064 24 .134
12、.095 AEROSPACE STANDARD AS648 SHEET 5 OF 7 REV. C HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, METAL BRAID, MEDIUM PRESSURE, FLARELESS, STRAIGHT TO 45 TABLE 8 INTEGRAL FIRE SLEEVE CUFF DIMENSIONS /27/ HOSE SIZE (REF) K MAX L MAX .250 .313 .375 .500 .625 .750 1.00 1.25 1.50 .90 .97 1.03 1.15 1.29 1.41 1.7
13、1 2.04 2.37 1.61 1.70 2.18 2.50 2.67 2.67 3.10 2.80 2.95 NOTES: 1. CONSTRUCTION AND PERFORMANCE: AS1946, FITTINGS SHALL BE PERMANENTLY ATTACHED TO THE HOSE. 2. OPERATING CHARACTERISTICS: SEE AS1946. 3. MATERIALS: a. HOSE AND FITTINGS - PER AS1946 /26/ b. SLEEVES - SEE APPLICABLE STANDARDS, TABLE 3 /
14、4/ STANDARD COUPLING NUTS SHALL BE IN ACCORDANCE WITH AS21921, AS1790, OR AS4370 AND MATE WITH AS33514, AS4377 OR AS4375 FITTING ENDS. NONSTANDARD COUPLING NUTS MAY BE USED, PROVIDED THEY ARE FUNCTIONALLY EQUIVALENT, AND PROVIDED THEY CANNOT BE REMOVED FROM THE FITTING. NUTS SHALL MEET THE TORQUE TE
15、ST REQUIREMENTS PER AS1946. /5/ DIAMETERS ARE LISTED FOR CLAMP SELECTION. TUBULAR SLEEVES MAY NOT BE A PERFECT ROUND AND SHALL BE MEASURED WITH A DIAMETER MEASUREMENT TAPE. /6/ THE INSTALLED TUBULAR ABRASION SLEEVES AXIAL MOVEMENT ON THE HOSE SHALL NOT EXCEED .05 IN. ENDS OF THE TUBULAR SLEEVE SHALL
16、 BE TERMINATED WITH A LENGTH OF AMS-DTL-23053/11 (FEP) CLASS 1 OR 2, COLOR CLEAR, PER TABLE 6 AND FIGURE 2. /7/ COIL ABRASION SLEEVES, WHEN ASSEMBLED ON A STRAIGHT HOSE, SHALL HAVE AN AVERAGE GAP BETWEEN COILS NOT EXCEEDING .05 in. DISPLACEMENT OF THE COILS OF THE SLEEVE, CAUSING A GREATER GAP, SHAL
17、L NOT BE CAUSE FOR REJECTION IF THE COILS CAN BE REPOSITIONED TO MEET THE GAP REQUIREMENTS. ENDS OF THE COIL SLEEVE SHALL BE TERMINATED WITH A LENGTH OF HEAT SHRINKABLE SLEEVING IN ACCORDANCE WITH TABLE 6 AND FIGURE 2. CODE “B“ (NYLON COIL) ABRASION SLEEVES SHALL BE TERMINATED WITH AMS-DTL-23053/5 C
18、LASS 1 OR 3, COLOR BLACK. CODE “L“ (COIL ABRASION) SLEEVES SHALL BE TERMINATED WITH AMS-DTL-23053/12, CLASS 1, COLOR TRANSPARENT, PTFE. (OPTIONAL FOR BOTH SLEEVES AMS-DTL-23053/11 (FEP) CLASS 1 OR 2, COLOR CLEAR). /8/ THE TABLE 4 SLEEVE DIAMETERS FOR AS1072 SLEEVES APPLY WHEN THE SLEEVE IS COMPRESSE
19、D, OR CLAMPED, TO CONTACT THE HOSE. IN THIS CASE, A WRINKLE MAY OCCUR OVER APPROXIMATELY 10% OF THE SLEEVE CIRCUMFERENCE. /9/ THE CUT ENDS OF THE FIRE SLEEVE SHALL BE SEALED USING RTV SILICONE RUBBER, PRIOR TO INSTALLATION, TO PREVENT WICKING OF FLUIDS. THE FIRE SLEEVE ENDS SHALL BE SECURED TO THE H
20、OSE ASSEMBLY END FITTINGS WITH CORROSION RESISTANT STEEL BANDS. AFTER INSTALLATION, CRACKS OR VOIDS IN THE FIRE SLEEVE, WHICH EXPOSE THE FIBERGLASS, SHALL BE COATED WITH SILICONE RUBBER. /10/ INTEGRAL ABRASION SLEEVE SHALL FORM AN INTEGRAL, PERMANENT PART OF THE HOSE AND SHALL TERMINATE A MAXIMUM OF
21、 .250 FROM THE END OF THE COLLAR. /11/ FEP AND POLYOLEFIN SHRINK ABRASION SLEEVES SHALL BE SHRUNK TO A SNUG FIT OVER THE HOSE AND END FITTING COLLARS. SLEEVE SHALL COVER A MINIMUM OF ONE HALF THE COLLAR. /12/ ADD “AS1055 TYPE IIb CLASS A-S/P“ OR “AS150 TYPE VIIbA” TO IDENTIFICATION MARKING TO SHOW L
22、EVEL OF COMPLIANCE, “FIRE RESISTANT (5 min), WITH AS1055 OR AS150“ /13/ ADD “AS1055 TYPE IIb CLASS B-S/P“ TO IDENTIFICATION MARKING TO SHOW LEVEL OF COMPLIANCE, “FIRE PROOF (15 min), WITH AS1055“ /14/ PRODUCT SUPPLIED TO THIS SPECIFICATION SHALL BE MANUFACTURED AND ASSEMBLED BY AN ACCREDITED MANUFAC
23、TURER OR ASSEMBLED BY AN ACCREDITED ASSEMBLING DISTRIBUTOR LISTED IN THE PERFORMANCE REVIEW INSTITUE (PRI) QUALIFIED PRODUCT LIST FOR PRI-QPL-AS1946 FOR THIS STANDARD. SEE http:/ FOR CURRENT QPL ONLINE /15/ A TRUE CIRCULAR CROSS SECTION IS NOT REQUIRED THROUGH THE FITTING ID. HOWEVER, THE APPLICABLE
24、 MINIMUM BALL DIAMETER LISTED IN TABLE 1 MUST BE CAPABLE OF PASSING THROUGH THE HOSE ASSEMBLY. AEROSPACE STANDARD AS648 SHEET 6 OF 7 REV. C HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, METAL BRAID, MEDIUM PRESSURE, FLARELESS, STRAIGHT TO 45 /16/ DISTANCE ACROSS CORNERS OF THE HEX MAY EXCEED THIS DIMENSIO
25、N. /17/ MARKING: MARKING SHALL BE PER AS1946 ON A STAINLESS STEEL BAND NOT OVER 1.0 in WIDE OR ON THE COLLAR. THE CHARACTERS SHALL BE A MINIMUM OF .0625 in HIGH. THE BAND SHALL BE SO DESIGNED AS TO REMAIN TIGHT ON THE HOSE TO PREVENT RELATIVE MOVEMENT AND RESULTANT CHAFING. IT SHALL BE OF SUFFICIENT
26、 STRENGTH TO PREVENT REMOVAL BY HAND. HOSE ASSEMBLY DATE AND “PT“ SYMBOL SHALL BE PERMANENTLY MARKED ON THE BAND OR ON AN END FITTING OR A FIRE SLEEVE CLAMP. IDENTIFICATION BANDS MAY BE APPLIED TO HOSE OR OVER END FITTING AND SHALL BE COVERED WITH A CLEAR HEAT SHRINK SLEEVE PER AMS-DTL-23053/11. PER
27、MANENT MARKING MAY BE APPLIED TO THE HOSE FITTING. 18. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M: REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 125in Ra. /19/ HOSE ASSEMBLY LENGTH FOR AS648, GAGE POINT TO GAGE POINT, AND ELBOW DROP LENGTHS, GAGE POINT TO GAGE POINT
28、, ARE FUNCTIONALLY EQUIVALENT TO MS8006 STYLE B OR H. CALCULATE HOSE LENGTH REQUIRED TO REPLACE MS8006 HOSE ASSEMBLY, STYLE B OR H, BY SUBTRACTING, FOR EACH END, DIMENSION “H“ OR “J“ AS TABULATED IN TABLE 7 AND SHOWN IN FIGURE 3. FROM MS8006 LENGTH AND FORMULATE AN EQUIVALENT AS648 LENGTH TO THE NEA
29、REST .125 INCREMENT. /24/ /20/ 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, THE FRACTION OF AN INCH IN EIGHTHS. LENGTH “L“ IS MEASURED FROM “SEAL POINT“ TO “SEAL POINT“. FOR LENGTH TOLERANCES SEE TABLE 2. T
30、O CONVERT “SEAL POINT“ TO “SEAL POINT“ TO “END TO END“ MEASUREMENT, ADD “D1“ AND “D2“ TO LENGTH “L“. /21/ LUBRICATE “B“ NUT ID THREADS AND SHOULDER OR WIRE GROOVE WITH SOLID FILM LUBRICANT PER AS5272, TYPE I. 22. DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994 23. SAFETY WIRE HOLES PER AS1043 /24/ EX
31、AMPLE OF PART NUMBER: THE PART NUMBER STRUCTURE HAS BEEN REVISED IN REVISION “A” OF THIS STANDARD TO INCORPORATE STEP DOWN/STEP UP INTERFACE FITTINGS, TITANIUM FITTING MATERIAL CODE AND SAFETY WIRE HOLES. ALL ASSEMBLIES PROCURED FOR ESTABLISHED APPLICATIONS MAY USE THE AS(APPROPRIATE NUMBER) “ORIGIN
32、AL” PART NUMBER STRUCTURE AS SHOWN IN EXAMPLE “A” BELOW. ALL ASSEMBLIES PROCURED FOR NEW APPLICATIONS SHALL USE THE AS(APPROPRIATE NUMBER) “CURRENT” PART NUMBER STRUCTURE AS SHOWN IN EXAMPLE “B” BELOW. THE ASSEMBLIES SHALL BE MARKED WITH THE PART NUMBER SPECIFIED ON THE PROCURING ACTIVITIES PURCHASE
33、 ORDER. EXAMPLE A (ORIGINAL) EXAMPLE B (CURRENT) AEROSPACE STANDARD AS648 SHEET 7 OF 7 REV. C HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, METAL BRAID, MEDIUM PRESSURE, FLARELESS, STRAIGHT TO 45 /25/ JUMP SIZE CODE EXPLANATION: a. R - STEP DOWN 1 STANDARD LETTER PER TABLE 1 (REDUCER) b. S - HOSE SIZE c.
34、E - STEP UP 1 STANDARD LETTER SIZE PER TABLE 1 (EXPANDER) /26/ FOR THE ALUMINUM AND TITANIUM FITTINGS, THE BASIC MATERIALS ARE ALUMINUM AND TITANIUM BUT SOME OF THE COMPONENT PARTS MAY BE STAINLESS STEEL. /27/ HOSE SLEEVE CODE H & J CONFIGURATIONS (TABLE 3): THE ENDS OF THE INTEGRAL FIRE SLEEVE AND
35、FITTING SOCKET/COLLAR MAY BE COVERED WITH A SILICONE CUFF OR MOLDED SILICONE, (FIGURE 4 AND TABLE 8) AS REQUIRED TO COMPLY WITH APPLICABLE FIRE PROOF OR FIRE RESISTANCE REQUIREMENTS. SILICONE NOT ALLOWED ON HEX SURFACES. 28. A CHANGE BAR ( l ) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE
36、 USER IN LOCATING AREAS WHERE TECHNICAL REVISIONS, NOT EDITORIAL CHANGES, HAVE BEEN MADE TO THE PREVIOUS ISSUE. AN (R) SYMBOL 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.
