1、AEROSPACE STANDARDMA2007REV.AIssued 1983-07Revised 1984-03Reaffirmed 2007-08Hose Assembly, Tetrafluoroethylene, Lightweight, 204 C,21 000 kPa Hydraulic, Metric1. SCOPE:This specification covers lightweight hose assemblies intended for use in high-temperature, 204 C, high-pressure, 21 000 kPa (210 ba
2、r) aircraft hydraulic systems, also for use in pneumatic systems which allow some gaseous diffusion through the PTFE wall.2. APPLICABLE DOCUMENTS:The following documents of the issue in effect on date of invitation for bids or request for proposals, form a part of this specification to the extent sp
3、ecified herein.2.1 Specifications:2.1.1 Federal:QQ-W-423 Wire, Steel, Corrosion-ResistingP-D-680 Dry Cleaning SolventQQ-S-763 Steel Bars, Wire Shapes, and Forgings, Corrosion-ResistingTT-I-735 Isopropyl Alcohol2.1.2 Military:MIL-C-5501 Caps and Plugs, Protective, Dust and Moisture Seal, General Spec
4、ification forMIL-F-8815 Filter and Filter Elements, Fluid Pressure, Hydraulic Lines, 15 Micron Absolute and 5 Micron Absolute, Type II SystemsMIL-H-5606 Hydraulic Fluid, Petroleum Base, Aircraft, Missile, and OrdnanceMIL-H-8446 Hydraulic Fluid, Nonpetroleum Base, AircraftMIL-H-83282 Hydraulic Fluid,
5、 Fire-Resistant, Synthetic, Hydrocarbon Base, AircraftRATIONALE 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 thi
6、s report is entirely voluntary, 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 canc
7、elled. SAE invites your written comments and suggestions. Copyright 2007 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, photocopying, recording, or otherwise, with
8、out 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 WEB ADDRESS: http:/www.sae.org SAE MA2007 Revision A- 2 -2.1.2 (Continued):MIL-L-7808 Lubricating Oil, Air
9、craft Turbine Engine, Synthetic BaseMIL-T-8504 Steel, Corrosion-Resisting (304) Aerospace Vehicle Hydraulic Systems, Annealed, Seamless and WeldedMIL-T-8808 Tubing, Steel, Corrosion-Resistant (18-8 Stabilized), Aircraft Hydraulic QualityMIL-T-27602 Trichloroethylene, Oxygen Propellant Compatibility2
10、.2 Standards:2.2.1 Military:DOD-STD-100 Engineering Drawing PracticesMIL-STD-105 Sampling Procedures and Tables for Inspection by AttributesMIL-STD-129 Marking for Shipment and StorageMIL-STD-130 Identification Marking of U.S. Military PropertyMIL-STD-831 Test Reports, Preparation ofCopies may be ob
11、tained from the procuring activity or as directed by the contracting officer.2.3 Other Publications:American Society for Testing and Materials:ASTM A 262 Detecting Susceptibility to Intergranular Corrosion on Stainless SteelASTM D 412 Rubber, Determination of Tension CharacteristicsASTM D 571 Rubber
12、 Hose for Automotive Hydraulic Brake SystemsASTM D 792 Specific Gravity and Density of Plastics by DisplacementASTM D 1457 TFE - Fluorocarbon Resin Molding and Extrusion MaterialsCopies may be obtained from the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA
13、19428-2959.Society of Automotive Engineers:AMS 3380 Hose, Polytetrafluoroethylene, TFE Fluorocarbon Resin, Wire Braid ReinforcedAMS 5556 Steel Tubing, Seamless or Welded, Corrosion and Heat-Resistant 18 Cr - 11 Ni - (Cb + Ta) (SAE 30347) HydraulicAMS 5557 Steel Tubing, Seamless and Welded, Corrosion
14、 and Heat-Resistant 18 Cr - 11 Ni - Ti (SAE 30321) HydraulicAMS 5567 Steel Tubing, Seamless and Welded, Corrosion Resistant 19 Cr - 10 Ni (SAE 30304) Hydraulic, Solution TreatedAMS 5570 Steel Tubing, Seamless, Corrosion and Heat-Resistant 18.5 Cr - 10.5 Ni - 0.40 Ti (SAE 30321)AMS 5571 Steel Tubing,
15、 Seamless, Corrosion and Heat-Resistant 18 Cr - 11 Ni - 0.70 (Cb + Ta) (SAE 30347)AMS 5575 Steel Tubing, Welded, Corrosion and Heat-Resistant 18 Cr - 10.5 Ni - 0.70 (Cb + Ta) (SAE 30347)SAE MA2007 Revision A- 3 -2.3 (Continued):AMS 5639 Steel Bars, Forgings, Tubing and Rings, Corrosion-Resistant 19
16、Cr - 10 Ni (SAE 30304)AMS 5643 Steel Bars, Forgings, Tubing and Rings, Corrosion Resistant 16.5 Cr - 4.0 Ni - 4.0 CuAMS 5644 Steel Bars and Forgings, Corrosion and Heat Resistant 17 Cr - 7 Ni - 1 AlAMS 5645 Steel Bars, Forgings, Tubing, and Rings, Corrosion and Heat Resistant 18 Cr - 10 Ni - 0.40 Ti
17、 (SAE 30321)AMS 5646 Steel Bars, Forgings, Tubing, and Rings, Corrosion and Heat Resistant 18 Cr - 11 Ni - 0.60 (Cb + Ta) (SAE 30347)AMS 5689 Steel Wire, Corrosion and Heat Resistant 18 Cr - 9.5 Ni - Ti (SAE 30321) Solution Heat-TreatedAMS 5690 Steel Wire, Corrosion and Heat-Resistant 17 Cr - 12 Ni
18、- 2.5 Mo (SAE 30316)AMS 5697 Steel Wire, Corrosion-Resistant 19 Cr - 9.5 Ni (SAE 30304)AMS 5743 Steel Bars and Forgings, Corrosion and Moderate Heat-Resistant 15.5 Cr - 4.5 Ni - 2.9 Mo - 0.10 N, Solution Heat-Treated, Subzero Cooled, Equalized, and Oven TemperedARP611 Tetrafluoroethylene Hose Assemb
19、ly Cleaning MethodsARP1153 Method for Determining Relative Specific Gravity, PTFE TubingARP1835 Preparation for Delivery, General Requirements for Hose AssembliesAS1055 Fire Resistance, Fire Test and Performance Requirements for Flexible Hose and Rigid Tube AssembliesAS1072 Sleeve, Hose Assembly, Fi
20、re ProtectionMA1370 Screw Threads, Controlled Radius Root with Increased Minor Diameter; General Specification forMA2002 Impulse Testing of Hydraulic Hose Assemblies, Tubing and FittingsMA2005 Tube Fittings, Fluid Systems, Separable, General Specification forMA2011 Fitting End, Standard Dimensions f
21、or Flareless Tube Connection and Gasket SealMA2014 Fitting End, Flareless Acorn, Standard Dimensions forMA2019 Fitting End, Standard Dimensions for Flared Tube Connection and Gasket SealCopies may be obtained from the Society of Automotive Engineers, Inc., 400 Commonwealth Drive, Warrendale, PA 1509
22、6-0001.3. REQUIREMENTS:3.1 Qualification:The hose assemblies furnished under this specification shall be products which are qualified by meeting all the requirements covered by this document.SAE MA2007 Revision A- 4 -3.2 Material:The hose assembly materials shall be uniform in quality, free from def
23、ects, consistent with good manufacturing practice and shall conform to applicable specifications and the requirements specified herein. All materials not specifically described herein shall be of the highest quality and suitable for the purpose intended.3.2.1 Metals: Metals used in the hose and fitt
24、ings shall be corrosion-resistant and shall conform to the applicable specifications as follows:Bars and Forgings:QQ-S-763 Class 304 - Condition A and Condition B (AMS 5639)QQ-S-763 Class 321 - Condition A (AMS 5645)QQ-S-763 Class 347 - Condition A (AMS 5646)AMS 5643 17-4 PHAMS 5644 17-7 PHAMS 5743
25、AM-355Tubing:MIL-T-8504 Composition 304 (AMS 5567)MIL-T-8808 Type I or Type II, Composition 321 (AMS 5570 or AMS 5557)MIL-T-8808 Type I or Type II, Composition 347 (AMS 5571 or AMS 5575, AMS 5556)Wire:QQ-W-423 Composition 305 (AMS 5691)QQ-W-423 Composition 304 (AMS 5697)QQ-W-423 Composition 316 (AMS
26、 5690)AMS 5689 Composition 321 (QQ-W-423, Form 1, Composition 321)3.3 Construction:The hose assembly shall consist of a seamless tetrafluoroethylene inner tube, corrosion-resistant steel-wire reinforcement, and corrosion-resistant steel end fittings are required to meet the construction and performa
27、nce requirements of this specification, and as required for its intended use.3.3.1 Inner Tube: The inner tube shall be of a seamless construction of virgin tetrafluoroethylene resin of uniform gage. It shall have a smooth bore and shall be free from pitting or projections on the inner surface. Addit
28、ives may be included in the compound from which the tube is extruded.3.3.2 Reinforcement: The reinforcement shall consist of corrosion-resistant steel wires conforming to the applicable specifications listed in 3.2.1. The wires shall be so arranged over the inner tube as to provide sufficient streng
29、th to ensure conformance with the requirements specified herein. Broken reinforcing wires shall be cause for rejection. Crossed-over reinforcing wires shall not be cause for rejection of the hose assembly.SAE MA2007 Revision A- 5 -3.3.3 Fittings: All fittings shall be proven to meet the requirements
30、 herein. Standard hose assemblies shall have flared fittings to mate with MA2019 or flareless fittings according to MA2014 to mate with MA2011. Fitting hex portions shall fit standard wrench openings.3.3.3.1 Insert Fittings: Standard insert fittings shall be of one piece construction. Welded and red
31、rawn tubing per MIL-T-8504 or MIL-T-8808 may be used.3.3.3.2 Nonstandard Fittings: Nonstandard fitting nipples shall be of one piece construction to the maximum extent possible. Those made with other than one piece construction can use welded and redrawn tubing per MIL-T-8808 and shall employ a butt
32、-weld joint method.3.3.3.3 Crimped or swaged sockets of 304 steel shall pass testing per ASTM A 262 practice E prior to crimping or swaging.NOTE: This requirement does not apply to sockets of 321, 347 or 304L corrosion resistant steel.3.4 Dimensions:The hose assembly dimensions, except for length, s
33、hall be as specified in Figure 6 and Table 6.3.4.1 Hose Weight: Hose consisting of inner tube and reinforcement as outlined in 3.3.1 through 3.3.3 shall not exceed the maximum hose weights covered in Table 1.TABLE 1 - Physical Requirements of Hose Assemblies and Weight of Hose3.5 Performance:The hos
34、e assembly shall meet the following performance requirements:3.5.1 Tube:3.5.1.1 Tube Roll: The tube shall not leak, split, burst, or show any evidence of malfunction, when tested through the sequence as specified in 4.6.2.1.SAE MA2007 Revision A- 6 -3.5.1.2 Tube Proof Pressure: The tube, without rei
35、nforcing wires, shall not leak, burst or show any evidence of malfunction when held for one (1) minute at the proof pressure values as specified in Table 4 and under 4.6.2.1.3.5.1.3 Tensile Strength: The longitudinal tensile strength for all sizes of tubes shall be 15 100 kPa minimum at 25 C 1 C whe
36、n tested in accordance with 4.6.2.2. The transverse tensile strength for sizes DN16 and larger shall be 12 400 kPa minimum at the same temperature. For sizes under DN16, the transverse strength need not be tested.3.5.1.4 Elongation: Elongation at 25 C 1 C shall be a minimum of 200 percent when teste
37、d in accordance with 4.6.2.3.3.5.1.5 Specific Gravity: The apparent specific gravity of the hose inner tube shall not exceed 2.155, the relative specific gravity shall not exceed a value of 2.210 when tested as specified in 4.6.2.4.3.5.2 Hose Assembly: The hose, complete with reinforcing wires and a
38、ssembled with end fittings, shall meet the following performance requirement.3.5.2.1 Proof Pressure: The hose assembly shall withstand the proof pressure listed in Table 1 without malfunction or leakage, when tested as specified in 4.6.3.3.5.2.2 Elongation and Contraction: The hose assembly shall no
39、t change in length by more than 2% of hose length, when subjected to the operating pressure in Table 1 for a minimum of 5 minutes. Hose assemblies shall be tested in accordance with 4.6.4.3.5.2.3 Volumetric Expansion: The volumetric expansion of the hose assemblies, when tested in accordance with 4.
40、6.5, shall not exceed the limits specified in Table 1.3.5.2.4 Leakage: The hose assembly shall not leak when subjected to two (2) pressure cycles of 70 percent of minimum room temperature burst pressure, when tested in accordance with 4.6.6.3.5.2.5 Room Temperature Burst Pressure: The hose assembly
41、shall not leak nor burst at any pressure below the burst value specified in Table 1, when tested in accordance with 4.6.7.3.5.2.6 Thermal Shock: The hose assemblies shall not leak nor show any evidence of malfunction when pressure tested from -54 C to 204 C as specified in 4.6.8.3.5.2.7 Impulse: The
42、 hose assemblies shall be capable of withstanding 250,000 impulse cycles when tested in accordance with 4.6.9.3.5.2.8 Assembly Flexibility: The hose assembly shall not leak when flex cycle tested from -54 C to 204 C as specified in 4.6.10. Any leakage from the hose or fittings, hose burst, fitting b
43、low-off, or any other evidence of malfunction during the test shall constitute failure.3.5.2.9 Stress Degradation: When tested in accordance with 4.6.11, the hose assembly shall not exceed an average effusion rate of 78 cm3/m/min for any size.SAE MA2007 Revision A- 7 -3.5.2.10 Pneumatic Surge: The i
44、nner tube of the hose assembly shall not collapse nor show evidence of degradation when tested in accordance with 4.6.12.3.5.2.11 Pneumatic Effusion: The hose assemblies, when tested in accordance with 4.6.13, shall not exceed a total effusion rate of 26 cm3/m of hose for any size.3.5.2.12 Repeated
45、Assembly: The fitting shall withstand, without leakage or failure, the repeated assembly test as described under 4.6.14. There shall be no leakage, galling or other malfunction in proof testing, or pneumatic testing after the last assembly cycle.3.5.2.13 Conductivity: When tested as specified in 4.6
46、.15, hose assemblies of sizes DN06 through DN12 shall be capable of conducting a direct current equal to or greater than six (6) microamperes, and sizes DN16 through DN25 a current equal to or greater than twelve (12) microamperes, with a test potential of 1000 volts, direct current.3.6 Screw Thread
47、s:Fitting threads shall be in accordance with AS1370. Fitting nut thread tolerance increase of 10 percent during assembly or testing shall not be cause for rejection of the hose assembly.3.7 Length:Hose assembly length shall be specified in the following increments only:Under 500 mm, not less than 5
48、 mm500-1000 mm, not less than 10 mm1000-1500 mm, not less than 20 mmOver 1500 mm, not less than 30 mmNOTE: Flareless hose assembly lengths shall be measured from gage point to gage point.Tolerances on hose assembly lengths shall be as follows:3 mm for lengths under 500 mm7 mm for lengths from 500 to
49、 900 mm13 mm for lengths from 900 to 1300 mm1% for lengths over 1300 mm3.8 Part Numbering of Interchangeable Parts:All parts having the same manufacturers part number shall be functionally and dimensionally interchangeable. The item identification and part number requirement of DOD-STD-100 shall govern the manufacturers part numbers and changes thereto.SAE MA2007 Revision A- 8 -3.9 Identification of Product:Equipment, assemblies, and parts shall be marked for identification in accordance with MIL-STD-130. The following special markin
