1、 MS28052C 14 October 2011 SUPERSEDING MS28052B 29 November 1956 DETAIL SPECIFICATION SHEET VALVE, CHECK, PRESSURE GAGE LINES BLEEDER AND FILLER This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described he
2、rein shall consist of this specification sheet. FIGURE 1. Valve, check, dimensions and configuration. AMSC N/A FSC 4820 INCH-POUND (See detail A) (See detail B) (See detail A) (See detail C) BLEEDER CHECK FILLER CHECK MS28052-1 MS28052-2 Inactive for new design after 10 May 1999. Provided by IHSNot
3、for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS28052C 2 Inches mm .002 .05 .006 .15 .187 4.75 FIGURE 1. Valve, check, dimensions and configuration - Continued. Detail B Detail C Detail A Provided by IHSNot for ResaleNo reproduction or networking permitted without li
4、cense from IHS-,-,-MS28052C 3 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for information only. 3. Unless otherwise noted, tolerances are .016 inch (.406 mm) and angles 0.5. FIGURE 1. Valve, check, dimensions and configuration - Continued. REQUIREMENTS Valve type dash number
5、(see table I). TABLE I. Valve type dash numbers. Dash number Item Boss -1 Bleeder check valve AND10050-4 -2 Filler check valve Performance requirements. Internal designs, other than what is shown on figure 1, shall be acceptable provided external dimensions and performance requirements are met as fo
6、llows: a. Valve to hold, with slight leakage, to 2 psi (13.8 MPa). b. Valve shall break open between 2 psi and 5 psi (13.8 MPa and 34.5 MPa). c. Maximum leakage under 2 psi (13.8 MPa) to be 3 cubic inches (50 cubic centimeters) of air per minute. Dimension Dimension Tolerance Inch mm Inch mm A 1.125
7、 28.575 B .428 10.871 .015 .381 C .600 max 15.240 max D1 .688 hex 17.475 hex D2 .251 dia 6.375 dia .003 .076 D3 .078 dia 1.981 dia .003 .076 D4 .062 dia 1.575 dia .003 .076 D5 .096 max .059 min 2.438 max 1.499 min E .157 3.988 +.015 -.000 +.381 -.000 F .550 13.970 G .063 max 1.600 max H .005 .127 +.
8、005 -.000 +.127 -.000 R .005 max .127 max Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS28052C 4 Materials. a. Spring: phosphor bronze, in accordance with ASTM B159/B159M. b. Body, seat, and retainer: Brass, in accordance with ASTM B16/B16M. Comp
9、osition 22 half hard. Finish. a. MS28052-1, aluminum or brass. b. MS28052-2, any black oxidizing finish. Valve characteristic: See figure 1. Part or Identifying Number (PIN). The PIN is as follows: MS28052 - 1 Dash number (see table I) Specification sheet number MS prefix Referenced documents shall
10、be of the issue in effect on the date of the invitation for bid. Marking. Letter B or F shall be stamped on three alternate hexagon flats in accordance with MPI ASM, “The Master Painters Institute Architectural Painting Specification Manual”. Letter B shall be stamped on MS28052-1 and filled with bl
11、ack enamel. Letter F shall be stamped on MS28052-2 and filled with white enamel. In addition, the MS PIN shall be stamped on the flats of the hexagon. All markings shall be not less than .062 inch (1.575 mm) high by .016 inch (.406 mm) deep by .016 (.406 mm) inch line width. For design feature purpo
12、ses, this standard takes precedence over procurement documents referenced herein. Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Referenced documents. This document references the
13、following: MIL-S-7742 ASTM B16/B16M ASTM B159/B159M MPI ASM SAE AS4395 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS28052C 5 CONCLUDING MATERIAL Custodians: Preparing activity: Navy AS DLA - CC Air Force 99 DLA CC (Project 4820-2011-007) NOTE: T
14、he activities listed above were interested in this document as of the date of this document. Since organization and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
