DLA MIL-DTL-32434 5-2013 HOSE ASSEMBLY POLYTETRAFLUOROETHYLENE CONVOLUTED REUSABLE FITTINGS HIGH TEMPERATURE MEDIUM PRESSURE FLANGE-TO-FLANGE.pdf

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1、MIL-DTL-32434/5 23 January 2013 DETAIL SPECIFICATION SHEET HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, CONVOLUTED, REUSABLE FITTINGS, HIGH TEMPERATURE, MEDIUM PRESSURE, FLANGE-TO-FLANGE This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements

2、for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-32434. Hose assembly with class 1 fittings (450F) corrosion resistant steel Hose assembly with class 1 fittings (450F) corrosion resistant steel End 1 End 2 End 1 End 2 NOTES: 1. See table I for fitting

3、ends and HCOF. 2. Fittings shall mate with the mounting pad as shown in MS33786. FIGURE 1. Class 1 hose assembly styles with flange-to-flange reusable fittings. AMSC N/A FSC 4720 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3243

4、4/5 2 Hose assembly styles with class 2 fittings (275F) combination of aluminum and corrosion resistant steel Hose assembly styles with class 2 fittings (275F) combination of aluminum and corrosion resistant steel End 1 End 2 End 1 End 2 NOTES: 1. See table II for fitting ends and HCOF. 2. Fittings

5、shall mate with the mounting pad as shown in MS33786. FIGURE 2. Class 2 hose assembly styles with flange-to-flange reusable fittings. Hose cut-off factor (HCOF) for assembly with class 1 fittings: See table l. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from

6、IHS-,-,-MIL-DTL-32434/5 3 TABLE I. Hose cut-off factor (HCOF) for assembly with class 1 fittings. 1/ Hose assembly styles with class 1 corrosion resistant steel fittings (CRES) 2/ Fitting ends HCOF (size vs length) 3/ 1 2 8 10 12 16 20 24 A MS27054 MS27054 2.46 2.84 2.76 3.22 3.38 3.62 B MS27054 MS2

7、7056 2.48 2.84 3.28 3.59 3.91 4.31 C MS27054 MS27058 2.44 2.83 3.30 3.66 4.03 4.49 D MS27056 MS27056 2.50 2.84 3.80 3.96 4.44 5.00 E MS27056 MS27058 2.46 2.83 3.82 4.03 4.56 5.18 F MS27058 MS27058 2.42 2.82 3.84 4.10 4.58 5.36 1/ Class 1 fittings, styles A through F, are made from CRES. 2/ For depic

8、tion 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 a 23.50 inch length assembly of size

9、 10, style F is calculated as follows: 23.50 - 2.82 = 20.68. HCOF for assembly with class 2 fittings: See table II. TABLE II. HCOF for assembly with class 2 fittings. 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 MS270

10、54 MS27054 2.46 2.84 2.76 3.22 3.38 3.62 H MS27054 MS27056 2.48 2.84 3.28 3.59 3.91 4.31 J MS27054 MS27058 2.44 2.83 3.30 3.66 4.03 4.49 K MS27056 MS27056 2.50 2.84 3.80 3.95 4.44 5.00 M MS27056 MS27058 2.46 2.83 3.82 4.03 4.56 5.18 N MS27058 MS27058 2.42 2.82 3.84 4.10 4.68 5.36 1/ Class 2 fittings

11、, styles G through N, are made from combination of aluminum and CRES. 2/ See figure 1 for depiction of styles. 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

12、 example, the hose length required to produce a 23.50 inch length assembly of size 10, style F is calculated as follows: 23.50 - 2.82 = 20.68. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/5 4 REQUIREMENTS Assembly classification: Cla

13、ss 1 and class 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). Dimensions: Unless otherwise specified, all dimensions are in inches. Fittings: All fittings shall be quali

14、fied in accordance with MIL-DTL-27272. Hose: The hose shall be in accordance with MIL-DTL-32435. Hose size and elbow drop height: Hose size code and elbow drop height see table III. TABLE III. Size code and elbow fitting drop height. Size Reference tube OD Size code Maximum drop height of elbow fitt

15、ing (a) 1/ (b) 1/ 8 .500 H .458 .927 10 .625 J .410 .931 12 .750 K .503 1.191 16Z 1.000 M .540 1.317 20Z 1.250 N .605 1.535 24Z 1.500 P .659 1.723 1/ Dimensions (a) and (b) are shown on figure 3. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DT

16、L-32434/5 5 Assembly length and tolerance: Hose assembly shall 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

17、inches to 36 inches. c. 1/2 inch for lengths from 36 inches to 50 inches. d. 1% for lengths over 50 inches. NOTES: 1. Hose assembly length “L” shall be measured, with the hose laid out horizontally and straight between the centers of the flange sealing surfaces, along a straight line parallel to the

18、 hose length. 2. See table III for dimensions of (a) and (b). FIGURE 3. Elbow fitting drop height, dimensions (a) and (b) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/5 6 Angular alignment: Hose assemblies with elbow fittings on each

19、 end shall have the angular orientation between the elbows measured counter-clockwise from the centerline of the nearest fitting, positioned at six-oclock, to the centerline of the other fitting (see figure 3). The elbow fitting drop height shall be as shown on figure 3 and table III. When applicabl

20、e, the angular alignment shall be expressed in three digits and specified in the PIN. NOTE: Angular alignment shall be measured in degrees with a tolerance of 2. FIGURE 3. Measurement of angular alignment between elbow fittings. Protective sleeve: If required, the hose assembly shall include a prote

21、ctive 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. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/5 7 TABLE IV. Protective sleev

22、e code. Code Type Blank None A SAE-AS1072 sleeve, fire protection, silicone 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 fro

23、m -65F to 250F. C SAE-AS1291 - code A sleeve, chafe guard, extruded seamless 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

24、bands as required. E SAE-AS1298 sleeve, heavy wall chafe guard, extruded 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

25、the fire protective sleeve (code A) shall be coated with room temperature 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 repr

26、oduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/5 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

27、32434/5 H 08 2 F A 030 PIN example: M32434/5H082FA030 represents inch OD PTFE convoluted hose assembly, 8.25 inches long, flange-to-flange reusable fitting with fire protective sleeve and 30O angular alignment between elbows. Referenced documents. In addition to MIL-DTL-32434, this document referenc

28、es the following: MIL-DTL-27272 MIL-DTL-32435 MS27054 MS27056 MS27058 MS33786 SAE-AS1072 SAE-AS1073 SAE-AS1291 SAE-AS1298 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 require

29、d. Style (see table I and figures 1 or 2). Length in eights of an 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-32434/5 9 CONCLUDING MATERIAL Custodians

30、: Preparing activity: Army - AV DLA - CC Navy - AS Air Force - 99 (Project 4720-2012-023) 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 at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-