1、 AEROSPACE STANDARD HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, PTFE CRES REINFORCED, 232 C, 10,500 KPA, BEAM SEAL, STRAIGHT TO 90, METRIC MA2178Copyright 2015 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form o
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3、ww.sae.org ISSUED 1991-02REVISED 2004-11 REAFFIRMED 2015-04THIRD ANGLE PROJECTION CUSTODIAN: G-3/G-3D REV.B FEDERAL SUPPLY CLASS 4720MA2178 SHEET 1 OF 4 REV. B PROCUREMENT SPECIFICATION: MA2126SAE Technical Standards Board Rules provide that: “This report ispublished by SAE toadvance thestate of tec
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5、revised,reaffirmed, stabilized, orcancelled. SAE invites yourwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/MA2178B RATIONALE MA2178B HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE FIVE-YEAR REVIEW PO
6、LICY. FIGURE 1 - DETAIL OF HOSE ASSEMBLY FIGURE 2 - DETAIL OF SLEEVE ASSEMBLY TABLE 1 - FITTING DIMENSIONS HOSE ASSEMBLY NO. AND SIZE CODE SIZE REF THREAD T PER MA1370 (ISO 5855) 4H-5H REF I.D. MIN A MAXB DRILLDIA MIN /1/ C HEXD DIA MAX /2/E MAXF MIN F MAX BALL SIZETHRU DIAMS19059 DASH NO.MIN /1/ MA
7、2178-06 MA2178-10 MA2178-12 MA2178-16 MA2178-20 MA2178-25 MA2178-32 MA2178-40 6.0 10.0 12.0 16.0 20.0 25.0 32.0 40.0 MJ 12X1.25 MJ 16X1.5 MJ 18X1.5 MJ 22X1.5 MJ27X1.5 MJ 33X1.5 MJ 39X1.5 MJ 50X2.0 4.397.579.9312.3215.6221.6227.9734.1428.1933.5336.8340.6445.7253.8551.8262.236.502 6.502 8.636 10.922 1
8、3.919 19.761 25.400 31.750 16.021.022.027.032.041.050.054.014.2 18.0 21.4 26.0 30.0 38.6 50.8 58.0 39.3745.7050.5560.2075.6982.0485.3489.9220.37 24.00 24.00 29.46 35.05 38.10 43.69 48.51 24.89 34.80 34.80 40.39 49.53 68.07 69.85 82.55 4807 4812 4816 4818 4821 4829 4834 4841 3.025.847.959.9313.0819.0
9、524.6130.18AEROSPACE STANDARD MA2178 SHEET 2 OF 4 REV. B HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, PTFE CRES REINFORCED, 232 C, 10,500 KPA, BEAM SEAL, STRAIGHT TO 90, METRIC TABLE 2 - LENGTH INCREMENTS HOSE ASSEMBLY LENGTHS AVAILABLE INCREMENTS TOLERANCE UNDER 457 MM 457 TO 914 MM 915 TO 1270 MM OVER
10、1270 MM (NOT LESS THAN) 3 MM (NOT LESS THAN) 7 MM (NOT LESS THAN) 13 MM (NOT LESS THAN) 26 MM 3 MM 7 MM 13 MM 1% TABLE 3 - MAXIMUM WEIGHTS HOSE OR SLEEVE CODE HOSE OR TYPE SLEEVE UNITSHOSESIZE 06 HOSESIZE 10 HOSESIZE 12 HOSE SIZE 16 HOSE SIZE 20 HOSE SIZE 25 HOSESIZE 32 HOSESIZE 40 - A B C E F H K L
11、 NONE NONE NONE HOSE ONLY ABRASION SLEEVE (TFE-AS1291-B) ABRASION SLEEVE (NYLON AS1294) FIRESLEEVE (15 MIN) AS1072 ABRASION SLEEVE (FEP) ABRASION SLEEVE (AS1073B) FIRESLEEVE INTEGRAL ABRASION SLEEVE POLYESTER W/HOSEABRASION SLEEVE (PTFE-AS1293) FIRESLEEVE CLAMP FITTING END (HOSE SIZE-STRAIGHT) FITTI
12、NG END (HOSE SIZE-90) KG/M KG/M KG/M KG/M KG/M KG/M KG/M KG/M KG/M KG/EAKG/EAKG/EA0.13 0.05 0.02 0.20 0.04 0.02 0.34 0.16 0.07 0.01 0.02 0.02 0.18 0.05 0.04 0.27 0.04 0.04 0.45 0.25 0.09 0.01 0.04 0.03 0.25 0.07 0.05 0.30 0.05 0.05 0.57 0.34 0.14 0.01 0.06 0.06 0.30 0.09 0.07 0.38 0.07 0.05 0.68 0.3
13、9 0.16 0.01 0.08 0.08 0.38 0.11 0.07 0.46 0.13 0.09 0.80 0.48 0.20 0.01 0.10 0.11 0.80 0.14 0.09 0.64 0.18 0.13 1.41 0.89 0.32 0.01 0.17 0.21 1.02 0.16 0.11 0.38 0.15 0.12 1.79 1.13 0.39 0.02 0.22 0.32 1.32 0.20 0.16 0.40 0.16 0.20 2.21 1.54 0.49 0.02 0.31 0.39 TABLE 4 - HOSE OR SLEEVE OUTSIDE DIAME
14、TERS SLEEVE CODE SLEEVE MATERIAL TEMPLIMITC TOLERANCEHOSESIZE 06 HOSESIZE 10 HOSESIZE 12 HOSE SIZE 16 HOSE SIZE 20 HOSE SIZE 25 HOSESIZE 32 HOSESIZE 40 - A B C E F H K L (-) INDICATES HOSE ONLY NO SLEEVE ABRASION SLEEVE TUBULAR (TFE-AS1291 - CODE B) ABRASION SLEEVE COIL NYLON (AS1294) FIRESLEEVE (AS
15、1072 SIL-FG) (15 MIN) /3/ ABRASION SLEEVE SHRINK-ON (FEB) ABRASION SLEEVE SHRINK-ON (POLYOLEFIN AS1073-CODE B) FIRESLEEVE INTEGRAL SILICONE(15 MIN) (AS1722) INTEGRAL ABRASION SLEEVE (BRAIDED) POLYESTER ABRASION SLEEVE COIL (PTFE-AS1293) 204 204 135 204 177 135 204 149 204 MAX MIN MAX MIN MAX MIN MAX
16、 MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN 8.71 7.72 12.01 8.74 10.39 8.38 15.88 13.58 10.24 8.13 10.44 8.84 16.28 15.09 10.92 9.91 11.30 8.46 11.91 10.92 14.86 11.94 13.59 11.58 19.05 16.71 13.69 11.48 13.89 12.29 19.46 18.26 14.20 12.95 14.50 11.68 14.86 13.87 18.16 14.88 16.99 14.99 22.23 19.76
17、 16.64 14.68 16.84 15.24 22.63 21.44 16.89 15.88 19.23 14.88 17.45 16.28 20.78 17.30 19.58 17.30 25.40 22.63 19.23 17.25 19.53 17.75 25.81 24.10 19.61 18.44 20.04 17.30 20.62 19.46 23.88 20.47 22.76 20.57 28.58 23.27 22.53 20.60 22.71 20.93 28.98 27.28 22.53 21.36 23.22 20.47 28.96 27.38 32.51 28.40
18、 31.09 28.50 35.31 32.72 31.19 28.65 31.29 29.11 36.93 35.41 30.73 29.16 31.55 28.40 35.31 33.7 38.46 34.75 37.44 34.85 44.45 40.0 36.68 34.49 37.64 35.46 43.28 41.88 37.08 35.51 37.90 34.80 43.36 41.58 46.38 42.60 45.69 42.70 50.80 47.93 44.63 42.34 45.95 43.56 51.21 49.71 45.26 43.48 45.95 42.85 A
19、EROSPACE STANDARD MA2178 SHEET 3 OF 4 REV. B HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, PTFE CRES REINFORCED, 232 C, 10,500 KPA, BEAM SEAL, STRAIGHT TO 90, METRIC TABLE 5 - FITTING SLEEVE LENGTH HOSE SIZE LENGTH (MM) DN 06 DN 10 DN 12 DN 16 DN 20 DN 25 DN 32 DN 40 50.0 6 63.5 6 76.0 6 102.0 6 NOTES: /1
20、/ A TRUE CIRCULAR CROSS SECTION IS NOT REQUIRED THROUGH THE END FITTING. HOWEVER, THE BALL DIAMETER B LISTED IN TABLE 1 SHALL PASS THROUGH THE END FITTING AFTER THE END FITTING IS ATTACHED TO THE HOSE ASSEMBLY. /2/ DISTANCE ACROSS CORNERS OF THE COUPLING NUT MAY EXCEED THIS DIMENSION. /3/ THE SLEEVE
21、 DIAMETERS FOR AS1072 SLEEVES APPLY WHEN THE SLEEVE IS COMPRESSED, OR CLAMPED, TO CONTACT THE HOSE. IN THIS CASE A WRINKLE MAY OCCUR OVER APPROXIMATELY 10% OF THE SLEEVE CIRCUMFERENCE. 4. MATERIALS: HOSE AND FITTINGS - PER MA2126. SLEEVES - SEE APPLICABLE STANDARD, TABLE 4. 5. CONSTRUCTION AND PERFO
22、RMANCE: THESE HOSE ASSEMBLIES SHALL MEET THE CONSTRUCTION AND PERFORMANCE OF MA2126. FITTINGS SHALL BE PERMANENTLY ATTACHED TO THE HOSE. 6. RATED OPERATING CHARACTERISTICS: SEE MA2126. 7. LENGTH “L“ IS A FOUR DIGIT NUMBER OF WHICH THE FIRST THREE DIGITS DESCRIBE THE HOSE ASSEMBLY LENGTH IN WHOLE CEN
23、TIMETERS (CM), AND THE FOURTH DIGIT IS THE FRACTION OF A CENTIMETER IN MILLIMETERS (MM). LENGTH “L“ IS MEASURED FROM “FACE OF SEAT“ TO “FACE OF SEAT“. SEE TABLE 2 FOR AVAILABLE LENGTH INCREMENTS AND TOLERANCES. 8. THE CUT ENDS OF THE SILICONE/FIBERGLASS FIRESLEEVE SHALL BE COATED WITH RTV SILICONE R
24、UBBER, PRIOR TO INSTALLATION, TO PREVENT WICKING OF FLUIDS. THE FIRESLEEVE ENDS SHALL BE SECURED TO THE HOSE ASSEMBLY END FITTINGS WITH CORROSION RESISTANT STEEL BANDS. AFTER INSTALLATION, CRACKS OR VOIDS IN THE FIRESLEEVE, WHICH EXPOSE THE FIBERGLASS, SHALL BE COATED WITH RTV SILICONE RUBBER. THE E
25、NDS OF THE INTEGRAL FIRESLEEVE SHALL EXTEND OVER THE END OF THE FITTING SOCKET. 9. COIL ABRASION SLEEVE, WHEN ASSEMBLED IN THE STRAIGHT CONDITION ON THE HOSE, SHALL HAVE AN AVERAGE GAP BETWEEN COILS NOT EXTENDING 1.3 MM DISPLACEMENT OF THE SPIRAL SLEEVE, CAUSING A GREATER GAP SHALL NOT BE CAUSE FOR
26、REJECTION IF THE COILS CAN BE REPOSITIONED TO MEET THE GAP REQUIREMENT. ENDS OF THE COIL SLEEVE SHALL BE TERMINATED WITH A LENGTH OF MIL-I-23053/5 BLACK POLYOLEFIN TUBING PER TABLE 5 AND FIGURE 2. 10. TUBULAR ABRASION (TFE) SLEEVES SHALL BE PER AS1291 EXCEPT I.D. SHALL BE NO GREATER THAN HOSE O.D. P
27、LUS 1.27 MM. ENDS OF THE TUBULAR SLEEVE SHALL BE TERMINATED WITH A LENGTH OF MIL-I-23053/11 (FEP) PER TABLE 5 AND FIGURE 2. 11. SHRINK ABRASION SLEEVES, FEP OR POLYOLEFIN, SHALL BE SHRUNK TO A SNUG FIT OVER THE HOSE AND END FITTING COLLARS. 12. FOR FIRESLEEVES, ADD “AS1055 TYPE IIB CLASS B-S/P“ TO I
28、DENTIFICATION MARKING TO SHOW LEVEL OF COMPLIANCE. FIRE PROOF (15 MIN) WITH AS1055. AEROSPACE STANDARD MA2178 SHEET 4 OF 4 REV. B HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, PTFE CRES REINFORCED, 232 C, 10,500 KPA, BEAM SEAL, STRAIGHT TO 90, METRIC 13. MARKING: THE HOSE ASSEMBLIES SHALL HAVE ALL IDENTIF
29、ICATION MARKING AS REQUIRED BY MA2126 PERMANENTLY ON A PERMANENT STAINLESS STEEL BAND NOT MORE THAN 25.4 MM WIDE OR ON TOP OF THE END FITTING. THE CHARACTERS SHALL BE A MINIMUM OF 1.6 MM HIGH. THE BAND SHALL BE SO DESIGNED AS TO REMAIN TIGHT ON THE HOSE TO PREVENT RELATIVE MOVEMENT AND RESULTANT CHA
30、FING AND OF SUFFICIENT STRENGTH TO PREVENT REMOVAL BY HAND. 14. LOCKWIRE HOLE DESIGNATION IS AS FOLLOWS: a. U = TWO HOLES, 180 APART b. W = THREE HOLES, 120 APART LOCATION PER PROCUREMENT STANDARD MA2126. 15. EXAMPLE OF PART NUMBER: 16. DO NOT USE UNASSIGNED SIZE CODES OR SLEEVES. 17. THE 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 TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT.
