1、MIL-N-2440E 9999906 1995075 103 IINCH-POUNDJ MIL-N-24408E(SH) 30 November 1994 SUPERSEDING 5 February 1993 MIL-N-24408D(SH) MILITARY SPECIFICATION NOZZLES, FIRE HOSE, COMBINATION AQUEOUS FILM FORMING FOAM, WATER SPRAY, ADJUSTABLE PATTERN (SHIPBOARD USE) This specification is approved for use by the
2、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 1.1 Scope. This specification covers fire hose nozzles which are for use with aqueous film forming foam (AFFF) sea water solution or sea water/fresh wate
3、r only either in straight stream or adjustable spray patterns. 1.2 Classification. 1.2.1 Nozzle tme. size and cavacitv. The nozzle type, size and capacity shall be identified by a code as follows: Type I - Bail handle operated Code T1-1 - Size 1-1/2 inch pistol grip with free swivel coupling - 95 ga
4、llons per minute (gal/min) Code T1-2 - Size 1-1/2 inch pistol grip with free swivel coupling - 125 gal/min Code T1-3 - Size 2-1/2 inch with free swivel coupling - 250 gal/min Type III - Bail handle operated Code T3-1 - Size 3/4 inch pistol grip with free swivel coupling - and settings for 12, 23, an
5、d 30 gal/min Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, SEA 03R42, Naval Sea Systems Command, 2531 Jefferson Davis Hwy, Arlington, VA 22242-5160 by using the self-addressed Stand
6、ardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. 1 I AMSC N/A FSC 4210 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
7、m IHS-,-,-2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications. standards. and handbooks. The following specifica- tions, standards, and handbooks form a part of this document to the extent specified herein. those listed in the issue of the Department of Defense Index of Specificat
8、ions and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Unless otherwise specified, the issues of these documents are SPECIFICATIONS FEDERAL PPP - F- 320 WW- C- 621 MILITARY MIL-P-116 MIL- S - 196 MIL-H-775 MIL-1-17563 MIL-L-19140 MIL-F-24385 MIL-R-83248 - Fiberboard
9、, Corrugated and Solid Sheet Stock - Coupling Assembly, Fire, Woven Jacketed, Rubber or (Container Grade), and Cut Shapes. Fabric-Lined and Unlined. - Preservation, Method of. - Support Items, Accessories, and Kits, Mechanical; Packaging of. - Hose, Hose Assemblies; Rubber, Plastic, Fabric, or Metal
10、 (Including Tubing) and Associated Hardware: Packaging of. and Zinc Alloy Castings. - Impregnants for Aluminum, Copper, Iron, Magnesium - Lumber and Plywood Fire-Retardant Treated. - Fire Extinguishing Agent, Type 6, Aqueous Film Forming Foam (AFFF) Liquid Concentrate, for Fresh and Sea Water. Fluid
11、 and Compression Set Resistant. - Rubber, Fluorocarbon Elastomer, High Temperature STANDARDS FEDERAL FED-STD-H28/10 - American National Hose Coupling and Fire-Hose FED-STD-151 - Metals; Test Methods. Coupling Threads. MILITARY MIL-STD-2073-1 - DOD Material Procedures for Development and Application
12、of Packaging Requirements. (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2 Provided by IHSNot for ResaleNo reproduction or n
13、etworking permitted without license from IHS-,-,-. MIL-N-2440E m 9Ob 1995077 Tb m 2.1.2 Other Government documents. drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified
14、, the issues are those cited in the solicitation. DRAWINGS NAVAL SEA SYSTEMS COMMAND (NAVSEA) 810-4444647 - Navy Fire Hose Spanner Wrench. (Application for copies should be addressed to Commander, Portsmouth Naval Shipyard, Code 280.6, Portsmouth, NH 03801.) 2.2 Non-Government Dubiications. The foll
15、owing documents 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 not listed in the DODI
16、SS are the issues of the documents cited in the solicitation (see 6.2). NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) NFPA 1964 - Standard for Spray Nozzles (Shutoff and Tip). (Application for copies should be addressed to the National Fire Protection Association, Batterymarch Park, Quincy MA.) AMERIC
17、AN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 313 - Standard Specification for Chromium Nickel Stainless and A 580 - Standard Specification for Stainless and Heat Resisting B 62 - Standard Specification for Composition Bronze or Ounce B 134 - Standard Specification for Brass Wire. (DoD adopted) B 15
18、0 - Standard Specification for Aluminum Bronze Rod, Bar, and B 164 - Standard Specification for Nickel-Copper Alloy Rod, Bar, B 196 - Standard Specification for Copper-Beryllium Alloy Rod and B 197 - Standard Specification for Copper Beryllium Alloy Wire. B 446 - Nickel Chromium Molybdenum Columbium
19、 Alloy, Rod and Bar. B 505 - Standard Specification for Copper Base Alloy Continuous B 584 - Standard Specification for General Application for Copper D 2000 - Standard Classification System for Rubber Products in Heat Resisting Steel Spring Wire. Steel Wire. (DoD adopted) Metal Castings. (DoD adopt
20、ed) (DoD adopted) Shapes. (DoD adopted) and Wire. Bar. (DoD adopted) (DoD adopted) Castings . Alloy Sand Castings. Automotive Applications. (DoD adopted) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-24408E 999990b 1995078 912 = ASTM S (Con
21、t d) D 3951 - Standard Practice for Commercial Packaging. (DoD adopted) D 4020 - Standard Specification for Ultra-High-Molecular-Weight Polyethylene Molding and Extrusion Materials. (DoD adopted) D 4066 - Standard Specification for Nylon Injection and Extrusion Materials (PA). D 4181 - Standard Spec
22、ification for Acetal (POM) Molding and Extrusion Materials. (DoD adopted) (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) 5462 - Cast Copper Alloys, Standard. (Application
23、for copies should be addressed to the Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.) AMERICAN NATIONAL STANDARDS INSTITUTE, INC. (ANSI) B 18.3 - Socket, Cap, Shoulder and Set Screws. (DoD adopted) (Application for copies should be addressed to the American National S
24、tandards Institute, Inc., 4030 Broadway, New York, NY 10018.) (Non-Government standards and other publications are normally available from These documents also the organizations that prepare or distribute the documents. may be available in or through libraries or other information services.) 2.3 Ord
25、er of DreCedenCe. In the event of a conflict 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 3.1
26、 First article. When specified (see 6.4), four samples shall be subjected to first article inspection in accordance in with 4.4. 3.2 Materials. The materials for each part shall be made as specified herein. and suitable for the purpose intended. material is prohibited except that stainless steel in
27、accordance with 3.2.1 is permitted. galling, seizing, or excessive wear of component parts. Impregnant sealing, if used, shall be in accordance with MIL-1-17563. Materials, gaskets, and seals in contact with AFFF shall be compatible with the fluid. Acceptance or approval of any individual material s
28、hall not be construed as a guaranty of the acceptance of the finished product. Material not definitely specified shall be of the best commercial grade The use of aluminum or any ferrous Material shall be selected to reduce erosion and corrosion and prevent 3.2.1 Stainless steel. Stainless steel shal
29、l be a 300 series in accordance with ASTM A 313, or ASTM A 580. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-24408E 9999906 1995079 859 3.2.2 Brass wire. accordance with ASTM B 134. Brass wire shall conform to copper alloy 260 in 3.2.3 Ide
30、ntifving of materials and finishes. The contractor shall identify the specific material, material finish or treatment for use with components and sub-components, and shall make information available and provide copies to the contracting officer or designated representative, provided by identifying t
31、he above requirements on an exploded view of the nozzle (see 6.3). The information shall be 3.2.4 Recovered materials. Unless otherwise specified herein, all equipment, material, and articles incorporated in the products covered by this specification shall be new and may be fabricated using material
32、s 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 recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials.
33、 None of the above shall be interpreted to mean that the use of used or rebuilt products is allowed under this specification unless otherwise specifically specified. 3.3 Construction. 3.3.1 Description. The purpose of these nozzles is to extinguish and control, without attachments, fires as encounte
34、red on board navy ships. Nozzle design shall be appropriate to operating conditions, that is all features shall be operable by one hand of the operator while the other hand is holding the nozzle or hose. Nozzles shall be capable of developing discharge flow patterns varying from straight stream to a
35、 wide angle fog. Fog patterns shall be enhanced with an impinging action by means of not less than one and not greater than two fixed concentric rows of teeth around the discharge orifice except for the type III nozzle which may use a ring of spinning teeth. Fog patterns shall be a uniform cone with
36、 no waterless gaps in the pattern. Straight stream, narrow angle fog and wide angle fog positions shall be stopped by detents. be incorporated into the nozzle and shall pass a specified sized ball through the nozzle. without disassembly of the nozzle. trunnions, one on each side of the ball and atta
37、ched to the bail handle. Nozzle couplings shall be of a free swivel type. following components and design (see 6.3): A flush mechanism shall Nozzle ball shut-off seats shall be self-adjusting or shall be adjustable Ball shut-Offs shall be operated by two The nozzle shall consist of the Nozzle body.
38、Free swivel coupling. Ball shut-off. Ball shut-off seat. Bail handle to operate the ball shut-off. Bumper. Seals. Pistol grip (except for 2-1/2 inch size). Constant flow in all positions (except flush). Positive detents in the specified positions. Flushing mechanism. 5 Provided by IHSNot for ResaleN
39、o reproduction or networking permitted without license from IHS-,-,-MIL-N-2440E 9999906 L995080 570 3.3.2 Nozzle bodv and internal components. The nozzle body, and all parts that are internal and in contact with the fluid flow, unless otherwise specified, shall be of bronze in accordance with alloy
40、836 of ASTM B 62 or ASTM B 505, alloy 642 of ASTM B 150, or alloy 932 of SAE 5462 (see appendix B) . 3.3.2.1 TvDe III nozzle. The type III nozzle shall be chromed on the exterior surface including the coupling using chromic acid (CrO,) and a low electric process. 3.3.3 Ball shut-off. Ball shut-off s
41、hall be made of acetal resin material and shall conform to ASTM D 4181. 0.01 percent by weight. Contaminant or filler shall be not greater than Material shall have a Rockwell M scale of 80. 3.3.4 Ball shut-off seat. Ball shut-off seats shall be made of ultrahigh molecular weight polyethylene, 100 pe
42、rcent virgin material, in accordance with ASTM D 4020. weight. the ball or a single seat on the outlet side of the ball. Contaminant or filler shall not be greater than 0.01 percent by Nozzle design shall include either seats on the inlet and outlet side of 3.3.5 BumDer. A bumper shall be provided a
43、t the discharge end of the nozzle for protection against physical damage. Thermoplastic and shall conform to ASTM D 2000. The bumper shall be made of Urethane 3.3.6 O-ring seals. O-ring seals shall be made of Viton, (rubber, fluorocarbon, elastomer), conforming to Shore A durometor of 70-75 and be m
44、ade in accordance with MIL-R-83248. 3.3.7 Bail handle. Handle shall be made of Urethane Thermoplastic and shall conform to 2BG540B31F17, Shore D, of ASTM D 2000, or shall be made of bronze in accordance with alloy 836 of ASTM B 62 or alloy 876 of ASTM B 584. inside clearance of the bail handle shall
45、 be not less than 3 inches. In an open or shut position, clearance between the bail handle and the nozzle body shall be not less than 3/4 inch. inch during any test (rough usage excepted). There shall be no permanent distortion of the handle after completion of any test. The widest Deflection of the
46、 handle shall not be greater than 1/2 3.3.8 Pistol grip. Pistol grip shall be made of Ethylene Propylene (with a bronze or stainless steel insert) and shall conform to 2CE814A16B15F19, Shore A, of ASTM D 2000; Nylon in accordance with PA162 of ASTM D 4066(PA); or shall be made of bronze in accordanc
47、e with alloy 836 of ASTM B 62. The pistol grip shall not exceed 6-1/2 inches in length. The measurement shall be taken from the centerline of the inlet coupling to the bottom of the pistol grip along a perpendicular to the center axis. spread over the lower 4-1/2 to 5 inches of the forward end of th
48、e pistol grip. The smallest perimeter in the lower two thirds of the pistol grip shall be 4-1/2 inches 1/4 inch. There shall be four finger notches uniformly 3.3.9 Pattern adiustments. Pattern adjustments shall be accomplished by rotation of a pattern adjustment sleeve at the discharge end of the no
49、zzle. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-24408E 999990b L508L 407 3.3.10 Pattern Position. Pattern position markings shall be at straight stream, 30 degrees (narrow fog), and 90 degrees (wide fog) settings based on a nozzle pressure of 100 psi. “hold in position feature“ (detent) at each of the three pattern settings. There shall be a mechanism to provide for a dedicated 3.3.11 Free swiv
