1、MIL-DTL-32330 10 August 2009 DETAIL SPECIFICATION HOSE ASSEMBLY, CONDUCTIVE POLYTETRAFLUOROETHYLENE TUBE, SMOOTH BORE, FLARED AND FLARELESS, TUBE TO HOSE, WITH SWIVEL NUT This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This spe
2、cification covers the requirements for hose assembly, conductive polytetrafluoroethylene tube, smooth bore, flared and flareless, tube to hose, with swivel nut (see 6.1). Hose assemblies are manufactured with hose for high temperature applications (pneumatic -66F to +160F, hydraulic -65F to +400F),
3、and a maximum operating pressure of 3000 psi, connectors are corrosion resistant steel. 1.2 Part or Identifying Number (PIN). The definitive specification PIN will be formatted to identify each item covered by this specification. The PIN format will consist of the letter M, specification number, a n
4、umber for hose size, five numbers, two for length in feet, two for inches, and one for eights of an inch, a letter for style, and two numbers for angle between elbows as follows: M 32330/1 -8 05 08 2 F 06 Example: M32330/1-805082F06 indicates - Hose assembly for 1/2 inch hose ID, 5 feet 8 1/4 inches
5、 in length, style F (90 elbow to 90 elbow), and 30 between angular displacement between elbows. AMSC N/A FSC 4720Comments, suggestions, or questions on this document should be addressed to: Defense Supply Center, Columbus, Attn: DSCC-VAI, P.O. Box 3990, Columbus, OH 43218-3990, or emailed to FluidFl
6、owdla.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil. INCH-POUND Angle between elbows to be specified in 5 increments, 30 / 5 = 06 Style (see 1.2.3) Length in eighths of an inch
7、(see 1.2.2) Length and inches (see 1.2.2) Size code (see 1.2.1) Specification number M prefix Length in feet (see 1.2.2) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32330 2 1.2.1 Hose dimensions. Hose inside and outside diameters are spec
8、ified in table I. TABLE I. Hose dimensions. 1/ 2/ Size dash no. Hose ID Inches Min. hose ID inches (mm) Max. over braid OD inches (mm) -4 1/4 .217 (5.51) .470 (11.94) -6 3/8 .310 (7.87) .575 (14.61) -8 1/2 .425 (10.80) .742 (18.85) -10 5/8 .552 (14.02) .882 (22.40) 1/ Dimensions are in inches. 2/ Me
9、tric equivalents are given for information only. 1.2.2 Lengths of hose. Lengths of hose are represented by feet (00 through 99), inches (00 through 11) and fractions in 1/8 inch increments (0 thru 7). 1.2.3 Styles. Styles are specified in the individual specification sheets. 2. APPLICABLE DOCUMENTS
10、2.1 General. The documents listed in this section are specified in sections 3, 4, and 5 of this specification. This section does not include documents in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the comp
11、leteness of this list, document users are cautioned that they must meet all specified requirements cited in sections 3, 4, and 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards an
12、d handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-PRF-680 - Degreasing Solvent MIL-PRF-5606 - Hydraulic Fluid, Petroleum Base, Ai
13、rcraft, Missile and Ordnance MIL-PRF-7808 - Lubricating Oil, Aircraft, Turbine Engine, Synthetic Base MIL-PRF-83282 - Hydraulic Fluid, Fire Resistant, Synthetic Hydrocarbon Base, Metric, NATO code Number H-537 MIL-DTL-83296 - Fitting, Corrosion Resistant Steel, High Temperature, High Pressure, Gener
14、al Requirements for MIL-DTL-83298 - Hose, Polytetrafluoroethylene, High Temperature, High Pressure (3000 PSI), Hydraulic and Pneumatic MIL-PRF-87257 - Hydraulic Fluid, Fire Resistant; Low Temperature, Synthetic Hydrocarbon Base, Aircraft and Missile MIL-DTL-32330/1- - Hose Assembly, Conductive Polyt
15、etrafluoroethylene Tube, Flared, Tube to Hose with Swivel Nut MIL-DTL-32330/2- - Hose Assembly, Conductive Polytetrafluoroethylene Tube, Flareless, Tube to Hose with Swivel Nut (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or from the Standardization Docum
16、ent Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32330 3 2.3 Non-Government publications. The following documents form a part of this document to the extent specifi
17、ed herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. AEROSPACE INDUSTRIES ASSOCIATION (AIA) NAS 847 - Caps and Plugs, Protective, Dust and Moisture Seal (Copies of these documents are available from www.aia- or Aerospace Industries Ass
18、ociation, 1000 Wilson Blvd., Suite 1700, Arlington, Virginia, 22209-3901.) INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) ISO 17025 - General requirements for the competence of testing and calibration laboratories (Copies of these documents are available online at http:/www.iso.ch or from the
19、International Organization for Standardization American National Standards Institute, 11 West 42ndStreet, 13thFloor, New York, NY 10036.) NCSL INTERNATIONAL NCSL Z540.3 - Requirements for the Calibration of Measuring and Test Equipment (Copies of these documents are available online at http:/www.ncs
20、li.org or from NCSL International 2995 Wilderness Place, Suite 107 Boulder, Colorado 80301-5404.) SAE INTERNATIONAL SAE-AS603 - Impulse Testing of Hydraulic Hose, Tubing, and Fitting Assemblies SAE-AS611 - Hose Assembly and Tubing, Polytetrafluoroethylene, Cleaning Methods for SAE-AS2078 - Test Meth
21、ods, Hose Assemblies, Polytetrafluoroethylene (PTFE) (Copies of these documents are available online at http:/www.sae.org or from the SAE World Headquarters, 400 Commonwealth Drive, Warrendale, PA 15096-0001.) 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in event of a c
22、onflict between the text of this document and the references cited herein (except for related specification sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENT
23、S 3.1 Specification sheets. The individual item requirements shall be as specified herein and in accordance with the applicable specification sheet. In the event of any conflict between the requirements of this specification and the specification sheet, the latter shall govern. 3.2 Qualification. Th
24、e hose assemblies furnished under this specification shall be products that are authorized by the qualifying activity for listing on the applicable qualified products list before contract award (see 4.4 and 6.3). Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
25、om IHS-,-,-MIL-DTL-32330 4 3.3 Materials. Materials shall be as specified herein and in referenced specifications and standards and other referenced documents. Materials not specified shall be selected by the contractor and shall be subject to all provisions of this specification. Materials shall be
26、 free of defects, which adversely affect performance of the finished product. 3.3.1 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds th
27、e operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.3.2 Other materials. Materials not otherwise specified shall conform to applicable specifications and to the requirements specified herein. All materials that are not specifically described shall b
28、e of the highest quality and suitable for the purpose intended. 3.3.3 Fungus proof materials. Materials that are nutrients for fungi shall not be used where it is practical to avoid them. 3.4 Design and construction. The hose assembly shall be constructed to meet the requirements specified herein an
29、d to retain the end fittings without slipping or leaking when tested as specified. The hose assembly shall be designed for working pressure shown in table II and a minimum hydrostatic burst pressure shown in table II. TABLE II. Performance requirements of hose assemblies. 1/ Size dash no. Maximum op
30、erating pressure Proof pressure Min. burst pressure at room temp Min. burst pressure at high temp psi MPa psi MPa psi MPa psi MPa -4 3,000 20.7 6,000 41.4 16,000 110.3 12,000 82.7 -6 3,000 20.7 6,000 41.4 14,000 96.5 10,500 72.4 -8 3,000 20.7 6,000 41.4 14,000 96.5 10,500 72.4 -10 3,000 20.7 6,000 4
31、1.4 12,000 82.7 9,000 62.1 TABLE II. Performance requirements of hose assemblies - Continued. 1/ Size dash no. Min. bend radius (inside of bend) inch (mm) Volume expansion (cc/in.) Pneumatic temperature range Hydraulic temperature range F (C) -4 3.00 (76) .065 -65F to+160 F -54C to +71C -65F to +400
32、F -54C to +204C -6 5.00 (127) .085 -8 5.75 (146) .135 -10 6.50 (165) .220 1/ Metric equivalents are given for information only. 3.4.1 Hose assembly construction. The hose assemblies in this specification and associated slash sheets shall consist of hose made in accordance with MIL-DTL-83298 and fitt
33、ings shall be made in accordance with MIL-DTL-83296. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32330 5 3.4.2 Dimensions and configuration. 3.4.2.1 Hose dimensions. Hose dimensions shall be in accordance with MIL-DTL-83298. Typical hose
34、configurations are shown on figure 1. 3.4.2.2 Length. The hose assembly shall be furnished in lengths specified by the procuring activity. The hose shall be measured as shown on the applicable detail specification sheet. Tolerances shall be in accordance with 3.4.2.2.1. FIGURE 1. Typical hose assemb
35、ly configurations. 3.4.2.2.1 Tolerances for length. Tolerances for the length “L” of hose assemblies shall be a specified below: a. L under 24 inches (610 mm): .125 (3.18 mm) b. L from 24 to 36 inches (610 to 910 mm): .250 (6.35 mm) c. L from 36 to 50 inches (910 to 1270 mm): .500 (12.70 mm) d. L ov
36、er 50 inches (1270 mm): 1 percent 3.4.2.3 End fittings. The end fittings shall be made in accordance with MIL-DTL-83296. The end fittings shall be retained on the assembly without slipping or leaking when coupled to the hose and tested as specified herein. 3.4.2.3 Lubricants. Lubricants may be used
37、in the assembly of hose components. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32330 6 3.5 Performance. 3.5.1 Proof pressure. The hose shall withstand the proof pressure listed in table II without malfunction or leakage when tested in ac
38、cordance with 4.8.2. 3.5.2 Leakage. There shall be no leakage through the wall of the hose or around the fittings when the hose assembly is subjected to testing in accordance with 4.8.3. 3.5.3 Burst pressure (see 4.8.4). 3.5.3.1 Room temperature burst pressure. The hose assembly shall not leak or ru
39、pture at any pressure below the minimum room temperature burst pressure specified in table II, when tested in accordance with 4.8.4.1. 3.5.3.2 High temperature burst pressure. When tested in accordance with 4.8.4.2, the hose assembly shall not leak, rupture, or blow off the hose at any pressure belo
40、w the minimum high temperature burst pressure specified in table II. 3.5.4 Hose conductivity. When subjected to testing in accordance with 4.8.5 using a test potential of 1,000 V dc, hose assembly sizes 4 through 8 shall conduct a direct current of not less than 6 A. 3.5.5 Elongation and contraction
41、. The hose assembly shall not change in length by more than .20 inch (5.08 mm) in 10 inches (254 mm) of length when tested in accordance with 4.8.6. 3.5.6 Stress degradation. The average air effusion shall not exceed 2.0 cc/in/min when tested in accordance with 4.8.7. 3.5.7 Impulse. The hose assembl
42、y shall not burst, leak, or show evidence of malfunctioning when subjected to a minimum of 250,000 impulse cycles when tested in accordance with 4.8.8. 3.4.8 Thermal shock. The hose assembly shall not leak or rupture at any pressure below the minimum high temperature burst pressure specified in tabl
43、e II, when tested in accordance with 4.8.9. 3.5.9 Flexibility. The hose assembly shall not leak or show any evidence of malfunction when tested in accordance with 4.8.10. 3.5.10 Pneumatic surge. When tested in accordance with 4.8.11, the hose assembly shall no signs of leakage when proof pressure te
44、sted or show any evidence of malfunction when examined internally and externally. 3.5.11 Pneumatic leakage test. When tested in accordance with 4.8.12, the hose assembly shall show no evidence of leaks. 3.5.12 Corrosion. The hose assembly shall function satisfactorily at the specified operating pres
45、sure after 172 hours of cycling when tested in accordance with 4.8.13. 3.5.13 Tensile strength. The hose assembly when tested in accordance with 4.8.14 shall withstand a tensile pull of 1,000 pounds (453.59 kg). Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
46、m IHS-,-,-MIL-DTL-32330 7 3.6 Identification of the product. For hose lengths under 4 feet (1.22 m) each hose assembly shall be identified by a permanently attached snug-fitting aluminum or stainless steel band around the hose near the end fitting. Hose assemblies 4 feet (1.22 m) and greater in leng
47、th, a band shall be attached near each end fitting of the assembly. The metal band shall be marked in raised, etched, or stamped lettering shall contain the following information appropriately identified: a. Date of hose assembly manufacture expressed in month and year. b. The rated working pressure
48、 in PSI (3000 psi). c. Hose assembly manufacturers commercial and government entity (CAGE). d. Hose manufacturers CAGE if different from hose assembly manufacturer. e. PIN (see 1.2). 3.7. Cleaning. All hose assemblies shall be cleaned in accordance with SAE-AS611, class 0. The interior surface of th
49、e hose assemblies shall be free from oil, grease, dirt, moisture, cleaning solvents and foreign materials when examined in accordance with 4.8.1. The ends of each hose assembly length shall be capped or plugged, with caps or plugs in accordance with NAS 847 to prevent entrance of moisture and foreign matter. The caps or plugs shall be securely attached and shall withsta
