1、MIL-N-12314E 20 October 1983 SUPERS ED ING MIL-N-12314D 28 June 1977 MILITARY SPECIFICATION NOZZLES, FIRE HOSE, WATER: SPRAY AND STREAM This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers fire hose water n
2、ozzles for connect- ing to fire hose or playpipe. 1.2 Classification. The water nozzles shall be the following types, classes, and size, as specified (see 6.2): Type I - Revolving, cellar, 2-1/2 inch. Type II - Combination spray and stream. Class A - Adjustable. Size: 1 inch. 1-1/2 inch. 2-l/? inch.
3、 lieneficial comments (rccommendations, additions, deletions). and any pertinent data which may be of use in improving this document should be addressed to: USA Mobility Equipment Research and Development Command, ATTN: DRDME-DS, Fort Belvoir , VA 22060 by using the self-addressed Standardization Do
4、cument Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. FSC 4210 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-N-LE3LLIE LIE m 7777906 0232050 7 m - MIL-N-12314E Class B - Nonadjustable. Size : 1 inch, wit
5、h 114-inch tip 4-foot applicator. 1-112 inch, with 112-inch tip 10-foot applicator. 2-112 inch, with 1 inch tip 10-foot applicator. Class C - Nonadjustable, high pressure, 1 inch. Type III - Solid stream. Class A - Plain. Size : 1-112 inch, with 318-inch tip opening. 1-112 inch, wit.h 112-inch tip o
6、pening. 1-112 inch, with 518-inch tip opening. 2-112 inch, with 1 inch tip opening. Class B - Shut-off. Size : 1 inch 1-112 inch. 2-112 inch. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. Unless otherwise specified, the follow- ing specifications and standards
7、 of the issue listed in that issue of the Depart- ment of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. SPECIFICATIONS FEDERAL QQ-P-416 - Plating , Cadmium (Electrodeposited) . 2 Provided by IHSN
8、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILITARY MI Rubber, Plastic, Fabric, or Metal (Including Tubing); and Fittings, Nozzles, and Strainers. - Playpipes: Nozzle, Fire Hose. - Gasket Material, Wool Felt, Impregnated, Adhesive, Pressure-Sensitive. - Primer
9、Coatings: Epoxy-Polyamide, Chemical and Solvent Resistant. - Sealing and Coating Compound, Corrosion Inhibitive. - Screw Thread Standards for Federal Services, Section 10, American National Hose Couplings and Fire-Hose Coupling Threads. - Sampling Procedures and Tables for - Marking for Shipment and
10、 Storage. - Identification Marking of US Military - Dissimilar Metals. - Commercial Packaging of Supplies and Inspection by Attributes. Property. Equipment. (Copies of specifications and standards required by contractors in connection with specific acquisition functions should be obtained from the c
11、ontracting activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this speci- The issues of the documents which are fication to the extent specified herein. indicated as DoD adopted shall be the issue listed in the current DoDISS and the s
12、upplement thereto, if applicable. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-12314E AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM A 47 - Malleable Iron Castings. ASTM A 519 - Seamless Carbon and Alloy Steel Mechanical Tubing. AS
13、TM B 16 - Free-Cutting Brass Rod, Bar, and Shapes for Use in Screw Machines. ASTM B 26 - Aluminum-Alloy Sand Castings. ASTM B 108 - Aluminum-Alloy Permanent Mold Castings. ASTM B 124 - Copper and Copper Alloy Forging Rod, Bar, and Shapes. ASTM B 210 - Aluminum-Alloy Drawn Seamless Tubes. ASTM B 584
14、- Copper Alloy Sand Castings for General Applications. (Application for copies should be addressed to American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Industry association specifications and standards are generally available l for reference from libraries. They
15、 are also distributed among technical groups and using Federal agencies. 2.3 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. I 3. REQUIREMENTS 3.1 Description. The nozzles
16、shall provide either a continuous stream or a combination spray and stream under specified pressures and rate of flow. nozzles shall be similar to the nozzles shown in figure 3 through 6 (see 6.5). The 3.2 First article. When specified (see 6.2), a sample shall be subjected to first article inspecti
17、on (see 4.3 and 6.3). 3.3 Material. Material shall be as specified herein. Materials not speci- fied shall be selected by the contractor and shall be subject to all provisions of this specification (see 6.4). 3.3.1 Material deterioration and control. The nozzle shall be fabricated from compatible ma
18、terials, inherently corrosion and deterioration resistant or treated to provide protection against the various forms of corrosion and deterioration that may be encountered in any of the applicable storage and operating environment to which the nozzle may be exposed. 4 Provided by IHSNot for ResaleNo
19、 reproduction or networking permitted without license from IHS-,-,-MIL-N-12314E 3.3.1.1 Dissimilar metals. Dissimilar metals, as defined in MIL-STD-889, shall be electrically insulated from one another to minimize or prevent gal- vanic corrosion. Insulation may be provided by an insulating barrier s
20、uch as a coat of epoxy primer conforming to MIL-P-23377, or corrosion inhibiting sealant conforming to MIL-S-81733 or chromate tape conforming to MIL-G-20241. Protection against any galvanic corrosion could also be obtained by exclusion of the electrolyte if feasible. 3.3.1.2 Identification of mater
21、ials 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, upon request, to the contracting officer or designated representative. 3.3.2 Malleable cast iron. Malleable iron cast
22、ings for nozzles shall con- form to ASTM A 47, grade 32510. 3.3.3 Cast aluminum. Aluminum castings for nozzles shall conform to ASTM B 26 or ASTM B 108, Alloy UNS A03560, T6. 3.3.4 Brass. 3.3.4.1 Brass bars. Brass bars shall conform to ASTM B 16. Drop forged brass shall conform to ASTM B 124, Alloy
23、UNS C37700. 3.3.4.2 Cast brass. Brass castings shall conform to ASTM B 584, Alloy UNS C83600 or UNS C84400. 3.3.5 Aluminum tubing. Aluminum tubing shall conform to ASTM B 210, Alloy 6061, temper to suit application. 3.3.6 Steel tubing. Steel tubing shall conform to ASTM A 519, type, grade and finish
24、 to suit application . 3.3.7 Gaskets. Gaskets shall be furnished on all nozzles equipped with internal threads. 3.4 Threads. All threads shall be American National Fire Hose Coupling Threads (NH) conforming to FED-STD-H28/10. 3.5 Design. The nozzles shall be aluminum, brass, malleable cast iron, or
25、Lugs, when provided, steel as specified (see 6.2). threaded for connecting to a fire hose or to a playpipe. shall be the rocker-lug type. The nozzles shall have one end internally 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-12314E 3.6 Env
26、ironmental conditions. 3.6.1 Operating temperature. All moving parts of the nozzles shall be free . moving and nonbinding under normal operating conditions in any ambient tempera- ture from minus 25O F to plus llOo F. 3.6.2 Storage temperature. The nozzle assembly shall not be damaged by storage in
27、any ambient temperature from minus 28O F to plus 145O F. 3.7 Hydrostatic pressure. The nozzles shall withstand an internal hydro- static pressure of 500 pounds per square inch (psi), except that type II, class C nozzles shall withstand 1000 psi, without damage or physical distortion to the body of t
28、he nozzles which might impair its serviceability. 3.8 Finish. All ferrous surfaces, including threaded and sliding surfaces, shall be cadmium plated in accordance with QQ-P-416, class I, type II. 3.9 Identification marking. When specified (see 6.21, each nozzle shall be identified in accordance with
29、 MIL-STD-130. Marking shall be placed in a conspicuous location on the body of the nozzle. 3.10 .Type I, revolving, cellar, 2-112 inch. The nozzle shall consist of a revolving barrel having not less than six machined orifices set at different angles, and not less than two water-stream orifices of di
30、fferent sizes so positioned as to cause the barrel to rotate when the nozzle is in operation. The barrel shall rotate on enclosed ball bearings which shall insure free- moving and nonbinding operation at a nozzle pressure of 100 psi. volving cellar nozzle shall be such shape and size as to pass thro
31、ugh a 6- inch circular opening and shall be similar to figure 3 (see 6.5). shall discharge not less than 280 gallons per minute (gpm) of water at a pressure of 100 psi and shall weigh not more than 9 pounds. The inlet con- nection shall have 2 112 - 7 112“ internal threads. The overall length of the
32、 nozzle shall be not less than 7 inches. The re- The nozzle h 3.11 Type II, combination spray and stream. 3.11.1 Class A, adjustable. The adjustable nozzle shall have a control mechanism capable of producing a continuous stream varying from a solid stream to a conical fog pattern and an adjustable g
33、allons flow mechanism to control water discharge. The nozzle tip shall be equipped with a natural rubber or synthetic rubber ring. The nozzle shall be of the weight and flow character- istics shown in table I. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
34、m IHS-,-,-MIL-N-L23L4E 42 m 9999906 0232055 b m Minimum 12 95 120 MIL-N-123 14E TABLE I. Weight and flow characteristics. Minimum 12 95 120 In terna1 thread size (inches) Weight (brass) ( pounds 1 I Flow characteristics I (discharge Dressure. 100 psi) 1 1-112 2-112 Minimum Maximum 2 4-314 2-112 6-31
35、4 4 11-1/2 3.11.1.1 Size l-inch nozzle. The control mechanism shall operate smoothly at pressures up to 400 psi and shall provide a continuous change from straight stream to conical water fog pattern at any angle up to 140 degrees. The shut- off valve shall not leak more than 0.5 percent of specifie
36、d minimum discharge at 100 psi. The butt end of the nozzle shall have 1 -.8NH internal threads. 3.11.1.2 Size 1-112 inch and 2-112 inch nozzle. The control mechanism shall operate smoothly at pressures up to 150 psi and shall provide a continuous change from straight stream to conical water fog patt
37、ern at any angle up to 140 degrees. The shutoff valve shall not leak more than 0.5 percent of specified minimum discharge at 100 psi. The butt end of the nozzles shall have 1 1/2 - 9“ and 2 1/2 - 7 112 NH internal threads, as applicable. 3.11.2 Class B, nonadjustable. The nonadjustable nozzle discha
38、rge end shall conform to figure 2 and as specified herein. The nozzle shall be similar to that shown in the “FOG“ or “SPRAY“ position, water shall be delivered to the spray-head opening; in the “OPEN“ or “STREAM“ position, water shall be delive,red to the solid-stream opening. sea water conditions.
39、The nozzles shall be shutoff type and shall The valve mechanism shall be operated by means of a D-frame or The nozzle shall operate at pressures up to 500 psi under 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-N-12314E 3.11.2.1 Shutoff valv
40、e. The shutoff valve shall be full-flow, ball (single or double seat type), or cylindrical floating-gland type with ground joints. The floating gland shall operate by pressure through bypasses in the body of the ball or cylinder. The valve shall be leakproof under pressures up to 500 psi. 3.11.2.2 T
41、ip. A tip of the size specified herein shall be incorporated in The tip shall be smooth-bore type and the solid-stream opening of the nozzle. shall be built into the nozzle to deliver a solid stream. 3.11.2.3 Attachments. Each nozzle shall be equipped with a removable, The applicator high-velocity s
42、pray head, attached to the main nozzle body by a metal chain, and a removable applicator with a low-velocity spray head. tube shall be aluminum tubing of the size and wall thickness shown in figure 2. The spray-head opening of the nozzle shall be constructed to receive either a high-velocity head or
43、 an applicator by means of a bayonet joint. The applicator shall have an additional seat behind the bayonet bushing seat in accordance with figure 2. downward in the vertical plane of the nozzle. the length of the tube before bending. fastened by means of external and internal threads to a bushing o
44、n the applicator. The low-velocity spray head shall be fitted with a strainer having an area 20 times the total effective free-water area through the orifices. The strainer openings shall measure not more than 3164-inch. to have a base that will push-fit in the head. joint and the head shall be pres
45、sure rolled or welded. Bends in the applicators shall have 6- to 8-inch radius and shall be The length of the applicator is The low-velocity spray head shall be The strainer shall be designed The bushings for the bayonet 3.11.2.4 Sizes. 3.11.2.4.1 Size 1-inch nozzle. The tip for the 1-inch nozzle sh
46、all have a The high-velocity spray head shall deliver not less than 12 ll4-inch opening. gpm of water fog in a consistent 90-degree conical pattern at a nozzle pressure of 100 psi, and deliver a straight stream of not less than 17 gpm at a nozzle pressure of 100 psi. an angle of 45-degrees at the sp
47、ray-head end. diameter, shall be provided for that end of the applicator which fits into the nozzle body. If smaller than 1-inch outside diameter (OD) tubing is used for the applicator, the end that seats in the nozzle body shall be expanded or bushed so that it will fit properly. The applicator hea
48、d shall be designed to produce an umbrella fog pattern and to discharge not less than 15 gpm of water at 100 psi. The butt end of the nozzle shall have 1 - 8NH internal threads. The applicator shall be 4 feet long and shall be curved at An additional seat, 1-inch in 8 Provided by IHSNot for ResaleNo
49、 reproduction or networking permitted without license from IHS-,-,-MIL-N-1231qE 42 W 777770b 0232057 T MIL-N-12314E 3.11.2.4.2 Size 1-1/2 inch nozzle. The tip for the 1-1/2 inch nozzle shall have a 1/2-inch opening. The straight bore and high-velocity spray head shall discharge not less than 65 gpm straight stream at 100 psi, and not less than 65 gpm of water fog in a consistent 70-degree conical pattern at a nozzle pressu
