1、i F. Beneficial comments (recommendations, 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
2、 Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. - IIL-P-ZLt589A Lt2 9999906 0528866 O H I I IINCH-POUND I MIL-P-24589A( SH) 20 May 1992 SUPERSEDING 30 January 1979 (See 6.9) MIL-P-24589(SH) MILITARY SPECIFICATION PROPORTIONER SYSTEMS, BALANCED PRESSU
3、RE, AQUEOUS FILM-FORMING FOAM (AFFF) LIQUID CONCENTRATE This specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE i. 1 Scope. This specification establishes requirem
4、ents for balanced pressure proportioning systems for use with AFFF liquid concentrate for fire fighting services. 1.2 Classification. 1.2.1 Proportioners. Proportioners shall be identified by a code for the following types as specified (see 6.2 and 6.7): Type II - Usable flow range of 90 to 500 gall
5、ons per minute (gal/min). Type III - Usable flow range of 90 to 1000 gal/min. 1.2.2 Components and assemblies. Proportioner systems shall consist of the following components and assemblies as specified (see 6.2 and 6.7). Components and assemblies shall be identified by a code corresponding to the co
6、mponent or assembly number shown below. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-24589A 42 9999906 0528867 2 MIL-P-24589A 3 - 4 - AFFF concentrate cutout valve (see 3.3.5). 5 - Pressure gauge (see 3.3.6). 6 - 7 - 8 - 9 - Electric motor (
7、see 3.3.10). 10 - AFFF concentrate discharge control valve with check feature (see 3.3.4). Gauge isolation valve (see 3.3.7). Pressure gauge root valve (see 3.3.8). AFFF concentrate pump (see 3.3.9). Motor controller (see 3.3.11). 12 - AFFF pump motor and pump assembly (see 3.3.12). 2. APPLICABLE DO
8、CUMENTS 2.1 Government documents. 2.1.1 Soecifications, standards, and handbooks. The following specificatlms ant standards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defens
9、e Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS: FEDERAL FF-B-171 QQ-C-390 TT-P-645 MILITARY MIL-S-901 MIL-F- 1 183 MIL-G-1149 MIL-c-22 12 MIL-P-15024 Bearings, Ball, Annular (General Purpose). Copper Alloy Castings (Includ
10、ing Cast Bar). Primer, Paint, Zinc-Chromate, Alkyd Type. Shock Tests, H.I. (High-Impact) Shipboard Machinery, Equipment, and Systems, Requirements for. Fittings, Pipe, Cast Bronze, Silver-Brazing, General Specification for. Gasket Materials, Synthetic Rubber, 50 and 65 Durometer Hardness Controllers
11、, Electric Motor A.C. or D.C. and Associated Switching Devices. Plates, Tags and Bands for Identification of Equipment. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STANDARDS MILITARY MIL-STD-129 - Marking for Shipment and Storage. MIL-STD-167-1
12、 - Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II - Internally Excited). MIL-STD-278 - Welding and Casting Standard. MIL-P-24589A 42 W 9799906 052BBb8 i.I MIL-P-24589A(SH) MIL-P- 15 024/5 MIL-E- 15090 MIL-T-16420 MIL-B-1654 1 MIL-P-16789 MIL-M-17060 MIL-V- 175 O 1 M
13、IL-V-18030 MIL-G- 18997 MIL-P-1913 1 MIL-F-20042 MIL-F-243 85 DOD-G-24508 MIL-V-24578 MIL-T-3 1000 MIL-R-83248 - Plates, Identification. - Enamel, Equipment, Light-Gray (Formula No. 111). - Tube, Copper-Nickel Alloy, Seamless and Welded (Copper Alloy Numbers 715 and 706). - Bronze, Valve: Castings.
14、- Pumps (Including Prime Movers and Support Items); Packaging of. - Motors, 60-Hertz, Alternating Current, Integral - Horsepower, Shipboard Use. - Valves, Magazine and Hangar Deck Sprinkler. - Valves, Control, Air-Diaphragm-Operated (Complete with Instrumentation). - Gauge, Pressure, Dial Indicating
15、. - Pumps, Rotary, Power Driven, Miscellaneous. - Flanges, Pipe and Bulkhead, Bronze (Silver Brazing). Fire Extinguishing Agent, Aqueous Film-Forming Foam (AFFF) Liquid Concentrate, for Fresh and Sea Water. (Metric). Valves, Globe, Pressure Instrument, Stem Test Connection, Union End. Technical Data
16、 Packages, General Specification for. Temperature, Fluid and Compression Set Resistant. - - Grease, High Performance Multi-Purpose - - - Rubber, Fluorocarbon Elastomer, High MS18229 - Plug for “o“ Ring Gasket. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
17、m IHS-,-,- NIL-P-24589A 42 9999906 0528869 6 = MJL-P-24589A( SH) (Unless otherwise indicated, copies of federal and military specifications and standards are available from the Standardization Documents Order Desk, Buliding 4D, 700 Robbins Avenue, Philadelphia, PA 19120-5099.). 2.1.2 Other Governmen
18、t documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this documentation to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS NAVAL, SEA SYSTEMS COMMAND (NAVSEA) 803
19、-1385714 - Valves, Bronze 1/4-2, Union End Gate. 803-5959218 - Valve, Pilot, Solenoid Operated. 803-5959273 - AFFF Balanced Pressure Proportioning System. (Application for copies should be addressed to: Commander, Portsmouth Naval Shipyard, Code 202.2, Portsmouth, NH 03801.). 2.2 Non-Government publ
20、ications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents no
21、t listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 182 - Pipe, Forged or Rolled Alloy Steel, Flanges, Forged Fittings and Valves, and Parts for High Temperature Service (DoD adopted) Hot-Rolled and Cold-Fini
22、shed Age-Hardening Stainless and Heat-Resisting Steel Bars, Wire, and Shapes (DoD adopted) Alloy Castings Corrosion Resistant Iron Chromium Nickel and Nickel Base Alloy Castings for General Application (DoD adopted) B62 - Standard Specification for Composition Bronze or Ounce Metal Castings (DoD ado
23、pted) B 148 - Aluminum Bronze Sand Castings (DoD adopted) B 164 - Standard specification for Nickel-Copper Alloy Rod, Bar, and Wire (DoD adopted) B 166 - Rod and Bar, Nickel Chromium Iron Alloy (UNS N06600) (DoD adopted) A 564 - A 744 - 4 Provided by IHSNot for ResaleNo reproduction or networking pe
24、rmitted without license from IHS-,-,-MIL-P-24589A 42 W 9999906 0528870 2 I ! I l l l I l l I I MIL-P-24589A( SH) (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.). 2.3 Order of precedence. In the event of a confl
25、ict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS b c 3.1 First article. A sample shall be sub
26、jected to first article inspection (see 6.4) in accordance with 4.4. b. 3.2 Materials. Proportioner components and assemblies covered by this specification shall be made from materials specified herein. Material not definitely specified shall be of the best commercial grade and suitable for the purp
27、ose intended. Material shall be selected so as to reduce erosion and corrosion and prevent galling, seizing, or excessive wear of operating parts. Materials, gaskets, and seals in contact with AFFF shall be compatible with the fluid. Acceptance or approval of any constituent material shall not be co
28、nstrued as a guaranty of the acceptance of the finished product. 3.2.1 Recovered materials. All equipment, material, and articles incorporated in 0 the products covered by this specification shall be new and may be fabricated using materials produced from recovered materials to the maximum extent pr
29、acticable without jeopardizing the intended use. The term “recovered materials“ means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials. None of the above shall be interpreted to mean that the use
30、 of used or rebuilt products is allowed under this specification. 3.2.2 Welding. Welding shall be in accordance with MIL-STD-278. 3.2.3 Castings. Castings shall not be plugged, brazed, or impregnated nor otherwise repaired without prior approval of NAVSEA. Routine industry standard metallic sealing
31、operations are acceptable prior to testing. 3.2.4 Painting. External unmachined surfaces of ungalvanized ferrous metal, except corrosion-resisting steel (CRES), shall be thoroughly cleaned and coated with one coat, formula 84 as specified in T-P-645 and two finish coats of light gray enamel, as spec
32、ified in MIL-E-15090, formula 111, class 2. External surfaces composed of nonferrous material such as metal castings, piping, or other parts shall not be painted. The remaining components shall be painted to the requirements of applicable specifications. 5 Provided by IHSNot for ResaleNo reproductio
33、n or networking permitted without license from IHS-,-,- MIL-P-24589A 42 7799906 0528871 4 MIL-P-24589A( SH) 3.3 General requirements. 3.3.1 Construction. Proportioner components and assemblies described herein shall be installed as part of a balanced pressure proportioning system in accordance with
34、Drawing 803-5959273 and figure 1. The balanced pressure proportioning system shall automatically proportion the correct amount of type 6 AFFF concentrate, specified in MIGF-24385, with seawater over a wide range of flows and firemain pressures. Components and assemblies shall be compact, consistent
35、with the requirements of reliability, and accessibility to repair. The requirement of reliability and accessibility to repair is paramount and no compromise of reliability and accessibility to repair shall be made with the other basic requirements. System valves shall be mounted in horizontal runs o
36、f pipe and upright with the bonnet on top. Valve position indicators shall be visible from the operating area. Position shall be such so that any valve may be dismantled, leaving the main body in place, or removed from the interconnecting piping without loosening, dismantling, or removing any other
37、component. Interconnecting pipe shall be in accordance with MIL-T-16420, composition 90-10 copper-nickel, type I or II, 200 pound class, and fittings shall be in accordance with type A of MIL-F-1183. 3.3.2 (ratio controller) (component number 1). The proportioning assembly shall include an AFFF orif
38、ice assembly (see 3.3.2.2). The proportioning assembly used to mix type 6 AFFF concentrate of MIL-F-24385 with seawater shall consist of a modified venturi in which the seawater inlet, which constitutes the primary inlet to the throat of the venturi, is separated from the throat section by an annula
39、r secondary inlet to the throat. The throat section shall be slightly enlarged to accommodate the AFFF entering through the secondary inlet and merging into the diverging or recovery (outlet) section of the venturi. Proportioning assembly body materials shall be bronze conforming to MIL-B-16541 allo
40、y 9220 or alloy C83600 of ASTM B 62. The proportioner nozzle shall be nickel-copper alloy conforming to alloy C95800 of ASTM B 148. Type II and III proportioning assembly seawater connections shall be integral 250 pound class, 4-inch and 5-inch flanges respectively, in accordance with MIL-F-20042, w
41、ith bolt holes straddling the vertical line. The face-to-face dimension shall not exceed 18 _+ 1/32 inches. When specified (see 6.2), type III seawater connections shall be 6-inch flanges. Proportioning assembly AFFF concentrate inlet connections shall be integral 250 pound class, MIL-F-20042, 1-1/2
42、 inch flanges, positioned with the concentrate flow line at right angles to the direction of seawater flow. A 3/8 inch nominal pipe size (nps) union connection conforming to MIL-F-1183 on a silver brazed short nipple for attaching the firemain pressure sensing line to the back pressure regulating va
43、lve of 3.3.3 shall be provided at the seawater inlet to the proportioning assembly. Proportioning assemblies shall contain no moving parts The proportioning assembly shall be configured to be supported by inlet and outlet piping. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted
44、 without license from IHS-,-,-MIL-P-24587A 42 W 779770b O528872 b MIL-P-24589A(SH) 3.3.2.1 Production unit sensing connection. Contractors may elect to furnish a regular production design proportioning assembly that does not provide an integral connection for attaching the firemain pressure sensing
45、line from the back pressure regulating valve. The installing activity shall provide a connection in the seawater supply line to the proportioning assembly. The connection shall be located within 5-feet upstream of the seawater inlet flange. 0 3.3.2.2 AFFF orifice assembly. The orifice plate shall be
46、 removable and mounted between the proportioning assembly AFFF inlet flange and the AFFF supply piping. The orifice shall consist of a 1/8-inch nominal thickness, square-edged, single orifice plate, with circular orifice and outlet edges deburred but not beveled. The orifice diameter shall be suitab
47、le to provide proportioner characteristics specified in 3.4.2 at AFFF concentrate pressures maintained as specified in 3.3.3. The orifice diameter shall be concentric with the outside diameter to not more than 0.125-inch . Orifice diameter tolerance shall not exceed plus or minus 0.003 inch. When pr
48、ovided the tab width and length shall be 1 k 1/16 inch and 2 k 1/16 inches, respectively. 0th sides of the tab approximately 5/8-inch from the end. Orifice plates without tabs shall have the orifice diameter etched or engraved in 1/8 to 1/4-inch high numerals on both sides of the orifice plate. Orif
49、ice plates shall conform to alloy C95800 of ASTM B148. Gasket material shall be nitrile (Buna N) rubber conforming to type I or II class 5 of MIL-G-1149. Flange bolting shall be monel nickel- copper conforming to ASTM A564 alloy number S17400. 3.3.3 Back pressure regulating valve !component number 2). The back pressure regulating valve shall be double spool type, constructed in accordance with MIL-V-18030, composition E, modified as follows: Valve pressure rat
