1、MIL-V-24232A Li Shipboard Machinery, Equip- MIL-D-1000/2 - Drawings, Engineering and Associated List. MIL-H-15071 - Manuals, Technical: Equipments and System Content MIL-B-23921 - Bronze, Nickel Aluminum Castings for Seawater Sekvice. MIL-B-24059 - Bronze-Nickel Aluminum; Rod, Flat Products with Fin
2、ished MILITARY ment and Systems, Requirements for. Requirements For. Edges, Shapes and Forgings. STANDARDS MILITARY MIL-STD-167 - Mechanical Vibrations of Shipboard Equipment. DRAWINGS MILITARY 810-1385884 - Unions, Fittings and Adapters, Butt and Socket ?elding 6000 PSI WOG and Oxygen (IPS). (Copie
3、s of specifications, standards, drawings, and publications required by cuppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) # 2.2 Other ublications. The following documents form a part of this specifica
4、tion to the extent-i- Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. NATIONAL BUREAU OF STANDARDS Handbook 1128 - Screw-Thread Standards for Federal Services. (Application for copies should be addressed to the Superintendent Of Doc
5、uments, Government Printing Office, Washington, D.C. 20402.) UNIFORM CLASSIFICATION COMMITTEE Uniform Freight Classification Rules (Application for copies should be addressed to the Uniform Classification Committee, 222 South Riverside Plaza, Room 1106, Chicago, Illinois 60606.) FSC 4820 Licensed by
6、 Information Handling ServicesMIL-V-24 23 2A (SllIPS AM%ICAN SOGILTY FOP. TCGFIl!G APIII HATERIALS (ASTil) I) 471-68 - Chanqe in Properties of Elastomeric Vul.canizates Resulting D 141448 - Rubber O-Rinus. D 2240-68 - Indentation Ilardiiess o Rubber and Plastic hy tleans of a From Immersion in Liqui
7、ds. Durometer. (Application for copics should )JC addressed to the American Society for Testing and (Technical society and toclinicalascociation specifications and standards are generally flatorialfi, 1316 Race Strcet, Philaclpliia, Pennsylvania 19103.) available for reference from libraries. and us
8、ing Federal agencies.) They are also distributed among technical groups 3. REQUIREHEkITS 3.1 Qualification. The valves furnished under this specification shall be products which aro qualified for listing on the applicable qualified products list at the time set for opening of biUo (see 4.2 and 6. 3)
9、. tho lino. dedhl permit loss, displacement, or severe damage to any one or more of tho non-metallic internal sliding seals or seats without jeopardizing the valves func- tioning and ability to meet the criteria of 3.15. Flnphasis shall be placed on ruggedness, reliability and oimplicity of design.
10、laver ao that interfiediate spring forces are not required for positioning or affecting a coal. ohall he actuated by means of a sliort throw lever. positions shall not exceed 90 deqrees. valve in each position and positively prevent an inadvertent shift of position. I 3.2 Desi n conce t All internal
11、 trin shall be readily replaceable with the valve in 3.3 Actuation. The main spool or poppet shall be directly connected to the actuating Tho operation of tho valve shall not be dependent on any critical adjustments. Valve Total travel of lever between the two A detent construction shall be provided
12、 to lock Pressure containing envelope (tmdy, top and bottom coversr and ao forth) I 70-30 nickel-copper 70-30 copper-nickel CRES (300 series) Aluminum Cast: NIL-B-23921 3.4 Materialfi of construction. Materials shall be as specified in table I. All materials shall be sected to prevent corrosionr gal
13、ling, seizing or excessive wear. Internal trim Bronze Forged: MIL-B-24059 70-30 nickel-copper CRES (300 series) Stellite 17-4PH Lever, lover bracket and other parta external to prefisure containing envelope Gtatic and dynanic seals CRCS (300 series) Aluminum Brass Aluminum-bronze Bronze 70-30 nickel
14、-copper 7 0-3 O copper-nickel Itaterials suitable or this applica- tion and meeting all performances and compatibility criteria specified herein. External bolting CRCS (300 series) Cadmium plated steel I 2 Licensed by Information Handling ServicesMIL-V-24232A 48 797990b 0274737 O W MIL-V-Z4232A(SHIP
15、S) 3.5 Design and test ressures. The design and test pressures of the pressure con- Nominal rating Proof pressure Burst pressure Psiq Psig Psiq 4500 6750 13,500 taining envelope XTZ as follows: # 3.6 Ports. Valves shall be equipped with 1/4 inch iron pipe size (ips) 6000 psig union connecfons in acc
16、ordance with Drawing 810-1385884. this drawing apply. secured to the body with a straight thread and O-ring seal. O-ring seal is used, the O-ring shall be inboard of the threads. through eaMpath (pressure port to cylinder 1 port, pressure port to cylinder 2 port, cylinder 1 port to vent port, cylind
17、er 2 port to vent port) of at least 0.2 inches. shift shalf there be communication between pressure and vent. Only the pertinent dimensions of Where a straight thread and Union thread pieces may be forged integral with the valve body or 3.7 Ca acit . Valves shall have an Equivalent Sharp Edge Orific
18、e Diameter (ESEOD) # 3.8 Interflow. The valve design shall prevent interflow. At no position during spool # 3.9 Mechanical shock and vibration. Valves shall be designed to meet the mechanical shock requirements of-S-901 and the vibration requirements of MIL-STD-167. There shall be no damage, shift i
19、n position, or degradation of operational capacity to the valve when subjected to the above conditions. failure mode criteria of 3.15 is not exceeded during the transient and that the valve returns immediately to full performance. Momentary internal leakage is acceptable, providing the 3.10 Actuatio
20、n force. The tangential force required to shift positions of the valve shall not exceed 15 poundc under any operating condition. under any tGazce stack-up condition. # 3.11 Stem uidins. The spool shall be positively guided to prevent cocking or binding 3.12 Threads. All threads shall conform to Hand
21、book H28. Pipe threads shall not be Acciaental loosening of all threaded parts shall be prevented by safety wiring on a used. prevailing-torque locking feature. Each part shai be identified by part number, and shall be replaceable from stock or the manufacturer on a non-selective and random basis. A
22、ll parts having the same manufacturers part number shall be directly interchangeable with each other with respect to installation (physical) and performance (function). Physical interchangeability shall be in accordance with the following definition: Interchangeable assemblies, components, and parts
23、 are those which are capable of being readily installed, removed, or replaced without alteration, mis- alignment, or damage to parts being installed or to adjoining parts. No fabrication opera- tions such as cutting, filing, drilling, reaming, hammering, bending, prying, or forcing shall be required
24、. This is not intended to preclude the use of special tools, fixtures, and other shop aids during original assembly of the parts into the article. Special tools are defined as those tools not listed in the Federal Supply Catalog (copies of this catalog may be consulted in the office of the Defense C
25、ontract Administration Service (DCAS). # 3.14 Seat ti htness. All seals (static and dynamic) shall provide zero internal and external leGe* as no visible signs of leakage over a 5-minute period using a bubble-fluid method or submerging the valve in water). # 3.13 Interchangeability. The valve shall
26、incorporate complete parts interchangeability. # 3.15 Failure-mode. The valve shall be capable of failure-mode performance (defined as providing not less than 3000 psig at the on port and not more than 100 psig at the off port with a 4500 psig air supply) with loss, displacement, or severe damage to
27、 any one or more of its non-metallic sliding seals or seating elements or any damage or wear caused by line media contamination. 3.16 Marking. 3.16.1 Body markings. Valve bodies shall be marked to show the cylinder 1, cylinder 2, pressure and vent or return ports. different lever positions. In addit
28、ion markings shall he provided to identify the 3 Licensed by Information Handling ServicesMIL-V-E!qZ3ZA 98 4Ob OZ74738 i MIL-V-2 4232A (SIIIPB) bram, or anoazer! aluninusi hhe securely attached to the valve and shall list the following data or a space tliercfor: 3.16.2 Identification ilaten. An iden
29、tification plate of corrosion resisting steel, (a) flanufacturero nano or trademark. (c) Valve aerial nuder. (d) Hanufacturers drawin nunber. (o) (f) Applicable manual nunber. (q) (b) MIL-V-2 4 2 3 2 Yanufacturcrs node1 and part numker. pace for 9-digit CID number. 3.17 Drawings. 3 17 1 Frelimirar d
30、rawinqs. Preliminary drawings which arc sufficient to permit cvaluafioi of4 and of materials shall be submitted to the procuring activity. Drawingo shall show the following: (a) (b) (Cl Clearances (maximum and minimum) of the dynamic guiding surfaces. (dl (e) End connection detail. (f) Bill of mater
31、ial listing specification, grade, condition and any other (h) Installation dimensions, end connection detail, and clearance dimensions A sectional assembly of the valve. Finish and hardness of the dynamic guiding surfaces. Concentricity and parallel requirements for the dynamic guiding surfaces in t
32、he assenbled valve. data required to fully identify the properties of the materials proposed. rcquireG for disassembly. up all joints and threaded assemblies. I (g) ESEBD for each flo:i path. I (i) Re-corrsnendcd assenbly, torques, or other equivalent procedures, for making I 3.17.2 Final dravinas.
33、Final drawinqs and certification data sheets shall be submitted to tho procurincJ-activity-witliin 60 days after date of contract. accordanco with types II ana III of l4IL-D-1000/2 except for extent of detail. Only the infomtion required in 3.17.1 need be furnished for the type XI drawings. The foll
34、owing data, in addition to that rcguircd in IllL-D-1000/2, shall be furnished for the type III drawings: These drawings shall be in (a) (b) Tabulated data fron Infra Red (IR) test analysis on all elastomeric materials Applicable assenbly drawing nunher (8). in valve (see 4.2.131. I 3.17.3 Limited ri
35、ghts lecrend. When the Government has only limited rights in the data shown cannawingo, asernined by the contractural provisions regarding rights in technical data, tho dravings furnished nay ho marked with the following restrictive legends “Furnished under United States Government Contract NO. . Sh
36、all not bo either released outside the Government, or used, duplicated, or dis- closed in wholo or in part for manufacture or procurement, without the written permission of , except for: (a) emergency re- pairs or ovcrliaul work by or for the Cavernment, where the iten or process concerned is not ot
37、herwise reasonably available to enable timely performance of tho work1 or (b) release to a foreign government, as the interests of the United States may require; provided that in either case the release, use duplication or disclosure hereof shall te subject to the foregoing limitations. This legend
38、shall be marked on any reproduction hereof in whole or in part.* I 3.18 Manuals. Manuals s!iall ijj furnished in accordance with type I of MIL-M-15071. The following, TAO quantityistribution of nanuals shall be as specified (see 6.2). in addition to that required for type I of fIIL-11-15071, shall h
39、e included as part of the manual contents: (a) Tlie engineering drawings for the valve (including certification data sheet). tions wzioro necessary to adequately illustrate operation and maintenance. Thccc aclditiorial illustrations may consist of hlwouts, partial or full sections, etc, and may elim
40、inate extraneous lines and details to clarify the interaction of parto. Tlicsc drawings shall be suppleir.ented by additional illustra- 4 Licensed by Information Handling ServicesMIL-V-24232A 48 W 7777906 027Ll737 4 W HI L-V- 2 4 23 2A (SHIPS) (b) Table listing wrench sizes and assembly torques (or
41、other equivalent pro- (c) cedures) for making up all joints and threaded assemblies, Instructions to permit overhauI by shipyarrl or other repair facilities. These should include procedures for checking all critical dimensions subject to wear or change and the acceptable dimensional limits, surface
42、finish condition, etc. Also, the appropriate procedure (that is, part replacement, correction at repair facility, or repair at manufacturers facility) which should be followed to correct each case of damage or wear. (d) Detailed disassembly and reassembly procedures. In addition to providing procedu
43、res for the complete disassembly and reassembly of the equipment, maintenance and troubleshooting sections shall contain, or refer to, only the limited disassembly and reassembly required to accomplish each particular operation. This is intended to reduce the possibility of un- necessary disassembly
44、 and unnecessary disturbance of adjustments when performing specific or limited maintenance or troubleshooting operations. (e) Adjustment procedures. 3.19 Installation attern The valve configuration shall be in accordance with pattern A or B as specified (seehi 1 and 2). 4. QUALITY ASSURANCE PROVISI
45、ONS 4.1 Res onsibility for ins ection. Unless otherwise specified in the contract, or purchase ordef, the supplier 1s fesponsible for the performance of all inspection require- ments as specified herein. Except as otherwise specified in the contract or order, the supplier may use his own or any othe
46、r facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Govern- ment reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and ser
47、vices conform to prescribed requirements. satisfactory to the Navamp Engineering Center. examination and tests specified in 4.2.1. submitted fodxxnztion and tests outlined inable1 and as specified in 4.2.2 through 4.2.13. drawings shall be submitted with the valve(s) to be tested, in addition to 100
48、 percent repair parts. 4.2 Qualification tests.L/ Qualification tests shall be conducted at a laboratory Qualification tests shall consist of the 4.2.1 Sam les for ualification examination and tests. One actuation.valve shall be Acceptance criteria shall be as given in table II. Detail engineering T
49、able 11 - Qualification examination and test outline. Test conditions examination port for each internal seals Check at both posi- I I/Application. for Qualification tests shall be made in accordance with “Provisions Governing Qualification SD-6“ (see 6.3 and 6.4). 5 Licensed by Information Handling ServicesMIL-U-24232A 44 79990b 0274740 O Examination and Test conditions Row capacity Air hdurance test 4500 psig air, 1000 tests (SQQ 4.2.6) (seo 4.2.71 CYClCS Purpose of examination Acceptance and tests criteria To determine ESEOD of flow ECEOD O .2 inches paths thr
