1、MIL-DTL-32434/3 23 January2013 DETAIL SPECIFICATION SHEET HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, CONVOLUTED, REUSABLE FITTINGS, HIGH TEMPERATURE, MEDIUM PRESSURE, FLARE-TO-FLANGE This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements fo
2、r 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 tables I and II for fi
3、tting ends and HCOF. 2. Fittings shall mate with parts designed to SAE-AS4395 and the mounting pad as shown on MS33786. FIGURE 1. Class 1 hose assembly styles with flare-to-flange reusable fittings. AMSC N/A FSC 4720INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted with
4、out license from IHS-,-,-MIL-DTL-32434/3 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 tables I an
5、d II for fitting ends and HCOF. 2. Fittings shall mate with parts designed to SAE-AS4395 and the mounting pad as shown on MS33786. FIGURE 2. Class 2 hose assembly styles with flare-to-flange reusable fittings. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
6、IHS-,-,-MIL-DTL-32434/3 3 Hose cut-off factor (HCOF) for assembly with class 1 fittings: See table l. TABLE I. HCOF for assembly with class 1 fittings. 1/ Hose assembly style with class 1 corrosion resistant steel (CRES) 2/ Fitting ends HCOF (size vs length) 3/ 1 2 8 10 12 16 20 24 A MS27053 MS27054
7、 2.16 2.47 2.51 2.91 3.13 3.47 B MS27053 MS27056 2.18 2.47 3.03 3.28 3.66 4.16 C MS27053 MS27058 2.14 2.46 3.05 3.35 3.78 4.34 D MS27059 MS27056 3.04 MS27055 MS27056 3.00 3.95 4.12 4.64 5.25 E MS27059 MS27058 3.00 MS27055 MS27058 2.99 3.97 4.19 4.76 5.43 F MS27060 MS27058 2.52 MS27057 MS27058 2.82 3
8、.84 4.10 4.68 5.36 G MS27059 MS27054 3.02 MS27055 MS27054 3.00 3.43 3.75 4.11 4.56 H MS27060 MS27054 2.54 MS27057 MS27054 2.83 3.30 3.66 4.03 4.49 J MS27060 MS27056 2.56 MS27057 MS27056 2.83 3.82 4.03 4.56 5.18 1/ Class 1 fittings, styles A through J, are made from CRES. 2/ For depiction of styles s
9、ee 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 25.50 inch length assembly of size 10, style J is
10、 calculated as follows: 25.50 - 2.83 = 22.67. 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-32434/3 4 TABLE II. HCOF for assembly with class 2 fittings. 1/ Hose assembly style with clas
11、s 2 aluminum and CRES fittings 2/ Fitting ends HCOF (size vs length) 3/ 1 2 8 10 12 16 20 24 K MS27053 MS27054 2.16 2.47 2.51 2.91 3.13 3.47 M MS27053 MS27056 2.18 2.47 3.03 3.28 3.66 4.16 N MS27053 MS27058 2.14 2.46 3.05 3.35 3.78 4.34 P MS27059 MS27056 3.04 MS27055 MS27056 3.00 3.95 4.12 4.64 5.25
12、 R MS27059 MS27058 3.00 MS27055 MS27058 2.99 3.97 4.19 4.76 5.43 S MS27060 MS27058 2.52 MS27057 MS27058 2.82 3.84 4.10 4.68 5.36 T MS27059 MS27054 3.02 MS27055 MS27054 3.00 3.43 3.75 4.11 4.56 U MS27060 MS27054 2.54 MS27057 MS27054 2.83 3.30 3.66 4.03 4.49 V MS27060 MS27056 2.56 MS27057 MS27056 2.83
13、 3.82 4.03 4.56 5.18 1/ Class 2 fittings, styles K through V, 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: A
14、ssembly length - HCOF = Hose length. For example, the hose length required to produce an 25.50 inch length assembly of size 10, style J is calculated as follows: 25.50 - 2.83 = 22.67. REQUIREMENTS Assembly classification: Class 1 and class 2 hose assemblies, as specified in MIL-DTL-32434, have been
15、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 qualified in accordance with MIL-DTL-27272. Hose: The hose shall be in accordanc
16、e with MIL-DTL-32435. Hose size code and elbow fitting drop height: See table III. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/3 5 TABLE III. Size code and elbow fitting drop height. 1/ Dimensions (a), (b), (c) and (d) are shown on
17、figure 3. 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 in
18、ches to 36 inches. c. 1/2 inch for lengths from 36 inches to 50 inches. d. 1% for lengths over 50 inches. Size Reference tube OD Size code Maximum drop height of elbow fitting (a) 1/ (b) 1/ (c) 1/ (d) 1/ 8 .500 H .485 .850 .458 .927 10 .625 J .571 1.161 .410 .931 12 .750 K .658 1.411 .503 1.191 16Z
19、1.000 M .695 1.535 .540 1.317 20Z 1.250 N .803 1.817 .604 1.535 24Z 1.500 P .902 2.067 .659 1.723 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/3 6 NOTES: 1. Hose assembly length “L” shall be measured, with the hose laid out horizonta
20、lly and straight between the center of the nipple end and the center of the flange sealing surface, along a straight line parallel to the hose length. 2. See table III for dimensions of (a), (b), (c) and (d). FIGURE 3. Elbow fitting drop height, dimensions (a), (b), (c) and (d). Angular alignment: H
21、ose assemblies with elbow fittings on each 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
22、 on figure 3 and table III. When applicable, the angular alignment shall be expressed in three digits and specified in the PIN. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/3 7 NOTE: Angular alignment shall be measured in degrees wit
23、h a tolerance of 2. FIGURE 4. Measurement of angular alignment between elbow fittings. Protective sleeve: If required, 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
24、 MIL-DTL-32434. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/3 8 TABLE IV. Protective sleeve code. Code Type Blank None A SAE-AS1072 sleeve, fire protection, silicone covered, temperature ranging from -65F to 450F and intermittently
25、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 250 F. C SAE-AS1291 - code A sleeve, chafe guard, extruded seamless white PTFE, temperature ranging from -65F to 450F, secured with
26、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, extruded seamless black PTFE, temperature ranging from -65F to 450F, secured
27、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 temperature vulcanized (RTV) silicone rubber prior to installation. After insta
28、llation, 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-32434/3 9 PIN: The PIN consists of letter M, specification sheet number
29、, 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 32434/3 H 08 2 F A 030 PIN example: M32434/3H082FA030 represents inch OD PTFE convoluted hose assembly, 8.25 inches long, flare-to-flange reu
30、sable fitting 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 MS27057 MS27056 MS27058 MS27053 MS27059 MS27054 MS27060 MS27055 MS33786 SAE-AS1072 SAE-AS1073 SAE
31、-AS1291 SAE-AS1298 SAE-AS4395 Angular alignment between elbow fittings as specified on figure 4 (leave blank for styles A, B, C, G, H, and J). Protective sleeve code (see table IV). Leave blank if not required. Style (see table I and figures 1 or 2). Length in eights of an inch. Length in inches. Si
32、ze code (see table III). Specification sheet number. M Prefix Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434/3 10 CONCLUDING MATERIAL Custodians: Preparing activity: Army - AV DLA - CC Navy - AS Air Force - 99 (Project 4720-2012-021) D
33、LA - 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-,-,-
