DLA MIL-DTL-32434 1-2013 HOSE ASSEMBLY POLYTETRAFLUOROETHYLENE CONVOLUTED REUSABLE FITTINGS HIGH TEMPERATURE MEDIUM PRESSURE FLARE-TO-FLARE.pdf

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1、 MIL-DTL-32434/1 23 January 2013 DETAIL SPECIFICATION SHEET HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, CONVOLUTED, REUSABLE FITTINGS, HIGH TEMPERATURE, MEDIUM PRESSURE, FLARE-TO-FLARE This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements f

2、or acquiring the product described herein shall consist of this specification sheet and MIL-DTL-32434. Class 1 (450) and class 2 (275) hose assembly styles with flare-to-flare reusable fittings see figures 1 and 2. Hose assembly styles with class 1 fittings (450F) corrosion resistant steel” Hose ass

3、embly styles with class 1 fittings (450F) corrosion resistant steel” End 1 End 2 End 1 End 2 NOTES: 1. See table I for fitting ends and hose cut off factor (HCOF). 2. Fittings shall mate with parts designed to SAE-AS33514, flared fitting end standard. FIGURE 1. Class 1 hose assembly styles with flar

4、e-to-flare reusable fittings. AMSC N/A FSC 4720 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/1 2 Hose assembly styles with class 2 fittings (275F) Combination aluminum and corrosion resistant steel Class 2 fittings (275F)

5、Hose assembly styles with combination aluminum and corrosion resistant steel End 1 End 2 End 1 End 2 NOTES: 1. See tables I and II for fitting ends and HCOF. 2. Fittings shall mate with parts designed to SAE-AS33514, flared fitting end standard. FIGURE 2. Class 2 fittings styles and designators. HCO

6、F for assembly with class 1 fittings: See table l. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/1 3 TABLE I. HCOF for assembly with class 1 fittings. 1/ Hose assembly styles with class 1 corrosion resistant (CRES) fittings 2/ Fitting

7、 ends HCOF (size vs length) 3/ 1 2 3/4 4 5 6 8 10 12 16 20 24 A MS27053 MS27053 1.40 1.48 1.54 1.62 1.86 2.10 2.26 2.60 2.88 3.32 B MS27053 MS27059 1.78 1.92 1.99 2.10 2.72 MS27053 MS27055 2.63 3.18 3.44 3.86 4.41 C MS27053 MS27060 1.56 1.65 1.74 1.84 2.24 MS27053 MS27057 2.46 3.05 3.35 3.78 4.34 D

8、MS27059 MS27059 2.16 2.36 2.44 2.58 3.58 MS27055 MS27055 3.16 4.10 4.28 4.84 5.50 E MS27059 MS27060 1.94 2.09 2.19 2.32 3.10 MS27055 MS27057 2.99 3.97 4.19 4.76 5.43 F MS27060 MS27060 1.72 1.82 1.94 2.06 2.62 MS27057 MS27057 2.82 3.84 4.10 4.68 5.36 1/ Class 1 fittings, styles A through F, are made

9、from CRES. 2/ For depiction of styles see figure 1. 3/ The HCOF is used in the following calculation to determine the hose length required to produce an assembly of a specific size, style and length: Assembly length - HCOF = Hose length. For example, the hose length required to produce an 18.50 inch

10、 length assembly of size 4, style D is calculated as follows: 18.50 - 2.36 = 16.14. HCOF for assembly with class 2 fittings: See table ll. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/1 4 TABLE II. HCOF for assembly with class 2 fitt

11、ings. 1/ Hose assembly styles with class 2 aluminum and CRES fittings 2/ Fitting ends HCOF (size vs length) 3/ 1 2 8 10 12 16 20 24 G MS27053 MS27053 1.86 2.10 2.26 2.60 2.88 3.32 H MS27053 MS27059 2.72 MS27053 MS27055 2.63 3.18 3.44 3.86 4.41 J MS27053 MS27060 2.24 MS27053 MS27057 2.46 3.05 3.35 3.

12、78 4.34 K MS27059 MS27059 3.58 MS27055 MS27055 3.16 4.10 4.28 4.84 5.50 M MS27059 MS27060 3.10 MS27055 MS27057 2.99 3.97 4.19 4.76 5.43 N MS27060 MS27060 2.62 MS27057 MS27057 2.82 3.84 4.10 4.68 5.36 1/ Class 2 fittings, styles G through N, are made from combination of aluminum and CRES. 2/ For depi

13、ction of styles see figure 1. 3/ The HCOF is used in the following calculation to determine the hose length required to produce an assembly of a specific size, style and length: Assembly length - HCOF = Hose length. For example, the hose length required to produce an 18.50 inch length assembly of si

14、ze 10, style K is calculated as follows: 18.50 - 3.16 =15.34. REQUIREMENTS Assembly classification: Classes 1 and 2 hose assemblies, as specified in MIL-DTL-32434, have been incorporated into the Part or Identifying Number (PIN) as a part of styles (see tables I and II, and figures 1 and 2). Dimensi

15、ons: Unless otherwise specified, all dimensions are in inches. Fittings: All fittings shall be in accordance with MIL-DTL-27272. Hose: The hose shall be in accordance with MIL-DTL-32435. Hose size code and elbow drop height: See table III. Provided by IHSNot for ResaleNo reproduction or networking p

16、ermitted without license from IHS-,-,-MIL-DTL-32434/1 5 TABLE III. Size code and elbow fitting drop height. Size Reference tube OD Size code Maximum drop height of elbow fitting (a) 1/ (b) 1/ 3/4 .250 2/ B .303 .550 4 .250 E .342 .600 5 .313 F .360 .675 6 .375 G .409 .740 8 .500 H .485 .850 10 .625

17、J .571 1.161 12 .750 K .658 1.411 16Z 1.000 M .695 1.535 20Z 1.250 N .803 1.817 24Z 1.500 P .902 2.067 1/ Dimensions (a) and (b) are shown on figure 3. 2/ Size 3/4 hose assembly consists of a size 4 tube OD hose assembled with size 3 tube OD fittings. Assembly length and tolerance: Hose assembly sha

18、ll be furnished in lengths as specified in the contract or purchase order (see figure 3); however, tolerances on the length of each hose assembly shall be as follows: a. 1/8 inch for lengths under 18 inches. b. 1/4 inch for lengths from 18 inches to 36 inches. c. 1/2 inch for lengths from 36 inches

19、to 50 inches. d. 1% for lengths over 50 inches. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/1 6 NOTES: 1. Hose assembly length “L” shall be measured, with the hose laid out horizontally and straight between the centers of the nipple

20、 ends, along a straight line parallel to the hose length. 2. See table III for dimensions of (a) and (b). FIGURE 3. Elbow fitting drop height, dimensions (a) and (b). Angular alignment: Hose assemblies with elbow fittings on each end shall have the angular orientation between the elbows measured cou

21、nter-clockwise from the centerline of the nearest fitting, positioned at six-oclock, to the centerline of the other fitting (see figure 4). The elbow fitting drop height shall be as shown on figure 3 and table III. When applicable, the angular alignment shall be expressed in three digits and specifi

22、ed in the PIN. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/1 7 NOTE: Angular alignment shall be measured in degrees with a tolerance of 2. FIGURE 4. Measurement of angular alignment between elbow fittings. Protective sleeve: If requ

23、ired, the hose assembly shall include a protective sleeve (see table IV) and its code shall be included in the PIN. Fire protective sleeve shall be subjected to testing in accordance with MIL-DTL-32434. TABLE IV. Protective sleeve code. Code Type Blank None A SAE-AS1072 sleeve, fire protection, sili

24、cone covered, temperature ranging from -65F to 450F and intermittently to 500F, secured with CRES bands as required. 1/ B SAE-AS1073 - code B sleeve, abrasion protection, heat shrinkable, black polyolefin, temperature ranging from -65F to 250F. C SAE-AS1291 - code A sleeve, chafe guard, extruded sea

25、mless white PTFE, temperature ranging from -65F to 450F, secured with CRES bands as required. D SAE-AS1291 - code C sleeve, chafe guard, extruded seamless transparent FEP, temperature ranging from -65F to 350F, secured with CRES bands as required. E SAE-AS1298 sleeve, heavy wall chafe guard, extrude

26、d seamless black PTFE, temperature ranging from -65F to 450F, secured with CRES bands as required. L Lock-wire hole F Code A + L G Code B + L H Code C + L J Code D + L K Code E + L 1/ To prevent wicking of fluids, the cut end of the fire protective sleeve (code A) shall be coated with room temperatu

27、re vulcanized (RTV) silicone rubber prior to installation. After installation, cracks and voids in the fire protective sleeve shall be coated with RTV rubber to prevent exposure of fiberglass. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3

28、2434/1 8 PIN. The PIN consists of letter M, specification sheet number, hose size code, hose length in inches and an eighths of an inch, hose assembly style, sleeve code, and angular alignment in degree between elbow fittings. M 32434/1 H 08 2 F A 030 Example: M32434/1H082FA030 represents 1/2 inch O

29、D PTFE convoluted hose assembly, 8.25 inches long, flare-to-flare reusable fittings with fire protective sleeve and 30 angular alignment between elbows. Referenced documents. In addition to MIL-DTL-32434, this document references the following: MIL-DTL-27272 MIL-DTL-32435 MS27055 MS27057 MS27059 MS2

30、7053 MS27060 SAE-AS1072 SAE-AS1073 SAE-AS1291 SAE-AS1298 SAE-AS33514 Angular alignment between elbow fittings as specified on figure 3 (leave blank for styles A, B, C, G, H, and J). Protective sleeve code (see table IV). Leave blank if not required. Style (see figures 1 or 2). Length in eights of an

31、 inch. Length in inches. Size code (see table III). Specification sheet number. M Prefix Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/1 9 CONCLUDING MATERIAL Custodians: Preparing activity: Army - AV DLA - CC Navy - AS Air Force - 99

32、 (Project 4720-2012-019) DLA - CC Review activities: Army - AR, AT, EA, MI Navy - MC, SA, SH Air Force - 70 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database a https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-