1、f MIL-V-2465 Li8 m 7777906 0275260 2 m ,? a I I a O MIL-V-24658(SH) 30 August 1985 SUPERSEDING 24 September 1973 (See 6.7) MIL-V-24272A(SHIPS)(IN PART) MILITARY SPECIFICATION VALVE MANIFOLDS, QUIET DESIGN, HIGH PRESSURE GAS REDUCING This specification is approved for use within the Naval Sea Systems
2、 Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the design, construction, test, and operating requirements for quiet design, high pressure air or nitrogen reducing valve manifolds.
3、1.2 Classification. Valve manifolds shall be of the following configura- tions, as specified (see 6.2.1) : , Configuration 1-1 - One reducer, one relief (see figure i). Configuration 2-1 - Two reducers, one relief (see figure 2). Configuration SP - Special configuration (see 6.2.1). 1.3 Pressure rat
4、ings. Valve manifolds shall have nominal inlet pressure ratings of 400, 1500, 3000 and 6000 pounds per square inch (lb/in2), as specified (see 6.2.1). 2. APPLICARLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following specifications and standards form a part of this
5、specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. Beneficial comments (recommemdatio
6、ns, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form
7、1426) appearing at the end of this document or by letter. FSC 4820 DISTRIBUTION STATEMENT A Approved for public release; distribution unlimited / THIS DOCUMENT COHTAINS 3a PAGES Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without lice
8、nse from IHS-,-,-MIL-V-2Ll658 LlA 977770b 0275263 m SPECIFICATIONS FEDERAL UV-P-268 PPP-C-850 PPP-c-I120 MILITARY MIL-V-3 MIL-S-901 MIL-F-1183 MIL-V-2961 MIL-R-6130 MIL-F-8815 MIL-R-20092 MIL-V-22549 MIL-V-22 6 8 7 MIL-V-24109 MIL-P-26514 STANDARDS FEDERAL - Paper, Kraftf Wrapping. - Cushioning Mate
9、rial, Polystyrene, Expanded, - Cushioning MateriaI, Uncompressed Bound Fiber for Resilient (for Packaging Uses). Packaging. - Valves, Fittings, and Flanges (Except for Systems - Shock Tests, H. I. (High-Impact) ; Shipboard Indicated Herein); Packaging of. Machinery, Equipment and Systems, Requiremen
10、ts for. General Specification for. 1/4 to 2 inches IPS). - Fittings, Pipe, Cast Bronze, Silver-Brazing, - Valves, Pressure P.educing, for Gas Service (Cizes - Rubber, Cellular, Chemically Blown. - Filter and Filter Elements, Fluid Pressure, Hydraulic Line, 15 Micron Absolute and 5 Micron Absolute, T
11、ype II Systems, General Specification forr - Rubber Sheets and Molded Shapes, Cellular, Synthetic, Open Cell (Foamed Latex). - Valves, Angle, Relief, for Gas and Oxygen Service (Sizes 2-Inches IPS and Below); Naval Shipboard. - Valves, Ball, Naval Shipboard, for Ar, Nitrogen, Helibm or HydrauIic Ser
12、vice (Sizes 2-1/2 Inches I.P.S. and Below). High Pressure (H.P.) Hydraulic and Pneumatic (Sizes 1/8 - 1-1/4 Inches). - Valves, Globe, Angle, Quick Change Cartridge Trim, - Polyurethane Foam, Rigid or Flexible for Packaging. FED-STD-H28/2 - Unified Thread Form and Thread Series for Bolts, Screws, Nut
13、s, Tapped Holes and General Applications. MILITARY MIL-STD-167-1 - Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II - Inter- nally Excited). and Acceptance Criteria of Shipboard Equipment, Standard Dimensions for. MIL-STD-740 - Airborne and Structureborne Noise Measur
14、ements MS16142 . - Boss, Gasket Seal Straight Thread Tube Fitting, 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-2LJb5 LJ m 9999906 0275262 6 m 2.1.2 Government drawings. The following Government drawings form a part of this specification t
15、o the extent specified herein. fied, the issues shall be those in effect on the date of the solicitation. Unless otherwise speci- DRAWINGS NAVAL SEA SYSTEMS COMMAND (NAVSEA) NAVSHIPS 810-1385884 - Unioni;, Fittings and Adapters Butt and Socket Welding 6000 PSI, WOG and,OXY NAVSHIPS 810-1385943 - Uni
16、ons, Silver Brazing 3000 PSI, WOG, IPS for UT Inspection. NAVSHIPS 810-1385946 - Unions, Bronze Silver Brazing, WOG for UT Inspection. (IPS). (Copies of specifications, ntandards and drawings required by contractors in connection with specific acquisition functions should be obtained from the contra
17、cting activity or as directed by the contracting officer.) 2.2 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specifi- cation shall take precedence. Nothing in this specification, however, shall supersede appli
18、cable laws and regulations unless a specific exemption has been obtained . 3. REQUIREMENTS 3.1 First article. When specified in the contract or purchase order (see 6.2.1), a sample shall be subjected to first article inspection (see 4.3 and 6.3). 3.2 General description. Quiet design reducing valve
19、manifolds shall incorporate all the components normally associated with a reducing station into a single assembly (body or block) requiring only one inlet and one outlet con- nection to the main flow path. The manifolds shall incorporate design features which enable them to meet the noise requiremen
20、ts specified herein when operating in the normal automatic regulating mode. lowing baseline features: The manifolds shall provide the fol- (a) Automatic means of regulating outlet pressure. (b) Provision for attachment of a pressure gauge to monitor outlet (c) Contamination (particulate) protection
21、for the pressure regulators. (d) Full-flow manual bypass. (e) Provision for isolating regulators, gauges and filtration equipment. (f) (6) Suitable bleeds to permit depressurization of regulators, gauges, pressure. Nonisolatable relief valve protection for both automatic and manual operation. relief
22、 valves arid filtration equipment. 3.3 Materials. Material requirements for subassemblies shall be as specified in the applicable .component specifications referenced herein. Materials for all other parts, including manifold body, shall be selected to provide inherent corrosion resistance in a marin
23、e atmosphere without requiring 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-V-2LIbS L.18 9777906 02752b3 painting, coating or plating. Materials for contacting parts shall be selected to minimize electrolytic corrosion and galling. material
24、s shall be compatible with ships air containing sea water vapor (100 percent humidity) and 2190 TEP lubricating oil. wrought or made from a wrought material. Nonmetallic Manifold bodies shall be 3.3,1 Recovered materials. Unless otherwise specified herein, all equip- ment, material, and articles inc
25、orporated in the products covered by this speci- ification shall be new and may be fabricated using materials produced from recovered materials to the maximum extent practicable without jeopardizing the intended use. The term “recovered materials“ means materials which have been collected or recover
26、ed from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials. interpreted to mean that the use of used or rebuilt products is allowed under this specification unless otherwise specifically specified. None of the above shall be 3.3.2 Verification of mate
27、rial identification and control. The material covered by this specification will be used in critical shipboard systems. The use of incorrect material would create a high probability of failure resulting in serious personnel injury, loss of life, loss of vital shipboard systems or loss of the ship it
28、self. The manifold has been designated as level I material and special control procedures are invoked to ensure receipt of correct material. 3.3.2.1 Materials which form the pressure boundary of the manifold shall be controlled by the level I requirements specified in 3.3.2.1.1 through 3.3.2.1.3. 3.
29、3,2.1.1 Quantitative chemical and physical analysis of material traceable to heat identification are required for the following, which shall be designated on the drawings as “level I“ or “I“. (a) Manifold body. (b) Stems which penetrate the pressure boundary. (c) Metallic pressure boundary parts. (d
30、) Threaded fasteners, 1/2 inch nominal and larger. Certification documentation shall include, in addition to the material specifi- cation, the class, form, condition, grade, type and composition applicable to the material supplied (see 6.2.2). 3,3,2.1.2 Pressure seals, such as O-rings, are specifica
31、lly excluded for level I material control requirements. 3.3.2.1.3 Questions regarding applicability of level I requirements shall be referred %o the Naval Sea Systems Command (NAVSEA). 3.4 Design and construction. 3.4.1 Design concept. Sub-components shall be cartridge mounted in the manifold body a
32、nd shall be readily replaceable without requiring removal of the manifold body from the line. construction such that flow paths between sub-components are provided by integral passages in the block and the joints normally required to connect The manifold body shall be of single-block e 4 Provided by
33、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-211658 48 m 7999706 02752611 T m Pressure rating (lb / in) sub-components into the flow path are eliminated. emphasize ruggedness, reliability and simplicity. The complete manifold shall be as small, compact
34、 and light as possible, consistent with satisfactory performance, durability, reliability and safety. The manifold and all sub-components shall be designed so that engagement or disengagement of parts against any significant spring compression shall not be necessary. shall be completely repairable b
35、y using the tools specified in 3.4.6.2. Sub-components shall The manifold Applicable document 3.4.2 Design pressures. For design purposes, factors of 1.5 and 3 shall be used for proof and burst pressures. These factors shall be applied to the specified maximum operating pressure at the applicable ma
36、nifold section, that is proof pressure of 1.5 times the nominal inlet pressure rating from the mani- fold inlet to the downstream cutout valve and 1.5 times the accumulation pressuae of the relief valve from the downstream cutout valve to the manifold outlet. 3.4.3 End connections. The main-line inl
37、et and outlet connections shall be in accordance with table I based on the design pressure requirements in accordance with 3.4.2. Union threadpiece adapters shall be secured to the manf- fold block with a straight thread and O-ring seal. The O-ring shall be retained in a groove on the outer diameter
38、 of the threadpiece adapter inboard of the adapter threads. Only the threadpiece dimensions of the documents specified in table I which are pertinent to the requirements of the straight thread and O-ring seal adapter configuration shall apply. The materials Por the union tailpieces shall be as speci
39、fied (see 6.2.1). The end connections shall permit axial adjustment of the threadpieces to expedite proper installation of the manifold. The range over which each connection can be adjusted shall be specified in table II. A positive and 2ermanent means shall be incorporated to insure that threadpiec
40、es are not backed out beyond their minimum engagement position. Size of end connections shall be as specified (see 6.2.1). O TABLE I. End connections. 400 1500 3000 6000 MIL-F-1183 (O-ring type) 810-1385946 810-1385943 810-1385884 Provided by IHSNot for ResaleNo reproduction or networking permitted
41、without license from IHS-,-,-MIL-V-24b58 44 = 777770b 02752b5 L H MIL-V-24658(SH) TABLE II. Adjustable range of end connections. Minimum adjustment range (inch) I nominal pipe size (nps) I Connection size 1/8, 1/4 and 3/8 1/2, 3/4, 1 and 1-1/4 3/8 I 1-1/2, 2 and 2-1/2 3/4 3.4.4 Mounting. The body of
42、 the manifold shall have provision for either bottom or back mounting to the ship structure as specified (see 6.2.1). Sub-components used in the manifold assembly shall be easily accessible for operation, adjustments, service or removal from the manifold, with the manifold mounted to the ship struct
43、ure. 3.4.5 Threads. Threads shall be in accordance with FED-STD-H28/2. Pipe threads shall not be used. Where necessary, provisions shall be incorporated to prevent the accidental loosening of threaded parts, The design shall be such that standard wrenches may be used on all external bolting. Lock-wi
44、re shall not be used. Low efficiency threads with small pitch to diameter ratios shall not be used. 3.4.6 Interchangeability. The entire manifold, including sub-components, shall incorporate complete parts interchangeability. Each part (see 3.4.6.1) shall have part number identity, and shall be repl
45、aceable from stock or the manufacturer on a nonselective and random basia. Parts having the same manufac- turers part number shall be directly interchangeable with each other with respect to installation (physical) and performance (function). Physical interchangeability shall be in accordance with t
46、he following definition: Interchangeable assemblies, components and parts are those which are capable of being readily installed, removed or replaced without alteration, misalignment, or damage to parts being installed or to adjoining parts. operations such as cutting, filing, drilling, reaming, ham
47、mering, bending, prying or forcing shall be required. No fabrication 3.4.6.1 Parts. Nonmetallic elements, including but not limited to, aeat rings, poppet seat inserts, cushions, and O-rings shall be treated as separately identified and readily replaceable parts. 3.4.6.2 Tools. Any special tools req
48、uired for maintenance of the mani- fold shall be supplied with the manifold. 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 Contract Administration Services Management Area (DCASMA). 3.4.7 O-ring
49、 locations. As far as practical, O-rings in face-seal applications shall have the grooves located in the lower members to simplify assembly. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-2g658 48 9977906 0275266 3 W 3.4.8 Gauge connection. The manifold shall be provided with a 1/4-inch gauge connection port in accordance with MS16142 to permit attachment of a pressure gauge for sensing the regulated ou
