1、 Comments, suggestions, or questions on this document should be addressed to U.S. Army RDECOM, Tank Automotive Research, Development and Engineering Center, ATTN: RDTA-EN/STND/TRANS MS #268, 6501 E. 11 Mile Road, Warren, MI 48397-5000 or emailed to DAMI_STANDARDIZATIONconus.army.mil. Since contact i
2、nformation can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.daps.dla.mil. AMSC N/A FSC 4610 INCH-POUND MIL-PRF-12732F 24 November 2010 SUPERSEDING MIL-H-12732E 16 January 1987 PERFORMANCE SPECIFICATION HYPOCHLORINATION UNIT
3、, WATER PURIFICATION, FRAME MOUNTED, AUTOMATICALLY CONTROLLED 2 TO 350 GPM FLOW This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers a frame-mounted, automatically controlled, hypochlorination unit for trea
4、ting water flowing through a pressure main. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional inform
5、ation or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1
6、 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2). Provided by IHSNot for R
7、esaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-12732F 2 FEDERAL SPECIFICATIONS L-P-380 - Plastic Molding Material Methacrylate MMM-A-16l7 - Adhesive, Rubber Base, General Purpose A-A-50271 - Plate, Identification A-A-55308 - Cloth and Strip, Laminated or Coated, Vi
8、nyl Nylon or Polyester, High Strength, Flexible A-A-59567 - Hose and Hose Assemblies, Rubber, (Yarn or Fabric Reinforced) Water Service FEDERAL STANDARDS FED-STD-H28 - Screw Thread Standards for Federal Services FED-STD-595/33446 - Yellow, Flat or Lusterless DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-
9、T-704 - Treatment and painting of Materiel MIL-DTL-32072 - Thread, Polyester MIL-DTL-53072 - Chemical Agent Resistant Coating (CARC) System Application Procedures and Quality Control Inspection DEPARTMENT OF DEFENSE STANDARDS MIL-STD-130 - Identification Marking of US Military Property MIL-STD-889 -
10、 Dissimilar Metals (Copies of these documents are available from https:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 Non-Government publications. The following documents form a part of this docume
11、nt to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2). AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) ANSI/ASQ Z1.4 - Procedures, Sampling and Tables for Inspection by Attributes (Copies of these documents
12、 are available from www.ansi.org or ANSI Customer Service Department, 25 W. 43rd Street, 4th Floor, New York, NY 10036.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-12732F 3 AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) ASME B16.1 - Pip
13、e, Cast Iron, Flanges and Flanged Fittings Boiler and Pressure Vessel Code, Section IX, Welding Qualifications (Copies of these documents are available online at http:/www.asme.org or from American Society of Mechanical Engineers, Orders/Inquiries, P.O. Box 2300, Fairfield, NJ 07007-2300.) AMERICAN
14、WATER WORKS ASSOCIATION (AWWA) AWWA C-700 - Cold Water Meters, Displacement Type (Copies of this document are available from www.awwa.org or AWWA Bookstore, 6666 W. Quincy Ave., Denver, CO 80235.) AMERICAN WELDING SOCIETY (AWS) AWS D1.1 - Structra1 Welding Code, Steel - Section 5, Qualification AWS
15、D1.2 - Structural Welding Code - Aluminum (Copies of these documents are available from www.aws.org or American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.) ASTM INTERNATIONAL ASTM A53/A53M - Pipe, Steel, Black and Hot-Dipped, Zinc Coated, Welded and Seamless ASTM A126 - Gray Iron Casti
16、ngs for Valves, Flanges and Pipe Fittings ASTM B209 - Aluminum-Alloy Sheet and Plate ASTM B210 - Aluminum-Alloy Drawn Seamless Tubes ASTM B221 - Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes ASTM A1011/A1011M - Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Structural,
17、High-Strength Low-Alloy with Improved Formability, Standard and Ultra-High Strength ASTM D1248 - Polyethylene Plastics Molding and Extrusion Materials ASTM D4976 - Standard Specification for Polyethylene Plastics Molding and Extrusion Materials (Copies of these documents are available from www.astm.
18、org or ASTM International, P.O. Box C700, West Conshohocken, PA 19428-2959.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-12732F 4 NATIONAL SANITATION FOUNDATION (NSF) NSF STD 14 - Plastic Piping Systems Components and Related Materials NS
19、F STD 61 - Components, Drinking Water System Health Effect (Copies of this document are available from www.nsf.org or NSF International, P.O. Box 130140, 789 N. Dixboro Road, Ann Arbor, MI 48113-0140.) SAE INTERNATIONAL SAE J492 - Rivets and Riveting (Copies of these documents are available from www
20、.sae.org or SAE Customer Service, 400 Commonwealth Drive, Warrendale, PA 15096-0001.) 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. N
21、othing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Description. The hypochlorination unit, hereinafter called “unit“, shall consist of a hydraulically operated hypochlorinator, a water meter, a manual range-
22、adjusting valve, a hypochlorite solution reservoir, guard frame, pipe and pipe fittings. The chlorination shall be obtained from a prepared calcium hypochlorite solution. 3.2 First article. Unless otherwise specified (see 6.2), a sample shall be subjected to first article inspection (see 4.3 and 6.3
23、). Any changes or deviations of the hypochlorination unit from the approved first article during production will be subject to the approval of the contracting officer. Approval of the first article will not relieve the contractor of his obligation to furnish hyprochlorination units conforming to thi
24、s specification. 3.2.1 First article components. Prior to being installed in the first article model, the unit components shall be tested as specified herein. 3.3 Material. Material shall be as specified herein. Materials not specified shall be selected by the contractor and shall be subject to all
25、provisions of this specification (see 6.7). The material selected shall have no adverse effect on health of personnel when used for its intended purpose. Questions pertinent to this effect shall be referred by the procurring activity to the appropriate medical service who will act as an advisor to t
26、he procuring activity (see 6.4). Plastic piping system components and related materials shall conform to NSF STD 14. All materials in contact with liquid that will contact drinking water shall conform to NSF STD 61. Provided by IHSNot for ResaleNo reproduction or networking permitted without license
27、 from IHS-,-,-MIL-PRF-12732F 5 3.3.1 Material deterioration prevention and control. The hypochlorinator shall be fabricated from compatible materials, inherently corrosion resistant or treated to provide protection against the various forms of corrosion and deterioration that may be encountered in a
28、ny of the applicable operating and storage environments to which the hypochlorinator may be exposed. 3.3.1.1 Dissimilar metals. Dissimilar metals shall not be used in intimate contact with each other unless protected against galvanic corrosion. Dissimilar metals and methods of protection are defined
29、 and detailed in MIL-STD-889. 3.3.1.2. Identification of materials and finishes. The contractor shall identify the specific material, material finish or treatment for use with component and subcomponent, and shall make information available upon request to the contracting officer or designated repre
30、sentative. 3.3.2 Tubing. 3.3.2.1 Aluminum tubing. Aluminum tubing shall conform to ASTM B 210 or B 221. 3.3.2.2 Plastic tubing. All p1astic tubing sections between water supply, hypochlorite solution reservoir, and hypochlorinator shall be nominal 3/8-inch inside diameter (ID) by 5/8-inch outside di
31、ameter (OD) or 5/l6-inch ID by 9/l6-inch OD, lengths as required. The tubing shall be clear PVC and shall be reinforced with open mesh embedded nylon braid and shall have a working pressure of 180 pounds per square inch (psi), at +705 F (213 C). 3.3.3 Pipe, tubing and pipe fittings. Metal pipe and t
32、ubings shall be of copper or brass. Unless otherwise specified (see 6.2), pipe fittings sha1l be of brass or bronze. All metal pipe and tubing shall withstand a hydrostatic pressure of not less than 100 pounds per square inch gage (psig). 3.3.4 Rubber hose. The wastewater drain hose shall be nominal
33、 3/4-inch ID by l-inch OD, length 10 feet 3 inches. The drain hose and other hoses connecting the water treating duct to the water meter shall conform to A-A-59567, grade 3, class 2. 3.3.5 Recovered materials. For the purpose of this requirement, recovered materials are those materials which have be
34、en collected from solid waste and reprocessed to become a source of raw materials, as distinguished from virgin raw materials. The components, pieces and parts incorporated in the unit may be newly fabricated from recovered materials to the maximum extent practicable, provided the unit produced meet
35、s all other requirements of this specification. Used, rebuilt or remanufactured components, pieces and parts shall not be incorporated in the unit. 3.4 Threads. Threads shall be in accordance with FED-STD-H28. 3.5 Environmental conditions. Provided by IHSNot for ResaleNo reproduction or networking p
36、ermitted without license from IHS-,-,-MIL-PRF-12732F 6 3.5.1 Storage. The unit shall not be damaged by storage under the following conditions (see 4.5.2.4): Air temperature High: +160 F (+71 C), time period 4 hours. Low: -30 F (-34 C), time period 6 hours, no solar radition. 3.5.2 Operating. The hyp
37、ochlorinator shall perform as specified herein in any ambient temperature from 120 F to 32 F. The unit shall function properly when operated in desert environment conditions, especially blowing sand. 3.6 Hypochlorinator. The hypochlorinator shall consist of a hydraulically operated balanced diaphrag
38、m or single acting diaphragm with spring return, chemical feed pump, automatically controlled by connection to a water meter. The load placed on the water meter shall not exceed 8 inch-ounces, and no inaccuracy of metering shall result from the connection to the hypochlorinator. The diaphragm shall
39、be Hypalon or Viton and the pumping chamber shall be poly-vinylchloride or Tyril. The suction and discharge valves shall be the poppet type and shall be corrosion-resisting metal, plastic, Teflon, polyvinylchloride, or Viton. A manual dosage adjustment shall be provided for varying the hypo-chlorite
40、 solution treated water ratio over a maximum 5:1 range. Water for operating the hypoch1orinator shall be taken from the water being treated at a rate not to exceed 0.6 gallons per minute (gpm). A range-adjusting valve shall be located in the main water line. A drain nipple for attaching a 3/4-inch p
41、lastic tube shall be provided in the overflow chamber for disposing wastewater. The unit shall operate against line pressures up to 100 psig and shall treat flows of 2 to 350 gpm. The hypochlorinator shall automatically proportion the pumping rate to within 10 percent for any one setting of the rang
42、e-adjusting valve. The main inlet and outlet connection for the water being treated shall be fitted with standard 4-inch NPT class 125 cast iron companion flanges in accordance with ASME B16.1 or ASTM A126, class B material. 3.7 Hypochlorite-solution reservoir. The hypochlorite-solution reservoir sh
43、all be a frame-mounted tank having a capacity of 6 gallons, 1 pint. The material shall be polyethylene conforming to ASTM D 1248, type-I, class A, category 2, or ASTM D4976, type I, class H, grade 3, rated for continuous service at 180 F (82 C). The dimensions shall be 18 inches long by 4 inches wid
44、e by 18 inches deep. 3.8 Range-adjusting valve. The range-adjusting valve shall be a butterfly valve and shall be installed in the water-treating conduit for the purpose of creating sufficient pressure drop to operate the water meter. Manual adjustment of this valve shall serve to shift the automati
45、c range of the hypochlorinator to one of the three required range positions. The range valve handle shall be held in position at required settings by means of a secured quick-release pin engaging a fixed portion of the valve to the body. The valve shall be provided with labels describing the functio
46、n of the valve and the location and function of each valve setting. 3.9 Water meter. A 1-inch bronze-disk, frostproof type water meter, conforming to AWWA-C-700, shall be connected into the water-treating conduit across the range-adjusting Provided by IHSNot for ResaleNo reproduction or networking p
47、ermitted without license from IHS-,-,-MIL-PRF-12732F 7 valve. The water meter shall be connected to the hypochlorinator in such a manner that the hypochlorinator will pump hypochlorite solution into the water under treatment at a rate which is governed by the speed of the meter. The water meter shal
48、l be provided with a 1/4-inch NPT opening in its lower chamber to permit draining. A bronze shutoff cock shall be installed in the meter drain opening. 3.10 Sight assembly. When specified (see 6.2), a methacrylate plastic sight assembly shall be provided in the hose connection between the reservoir
49、and hypo-chlorinator for visual checking of the hypochlorite solution during operation of the hypochlorinator. The methacrylate plastic material shall conform to L-P-380, type I, class 1. 3.11 Chlorine photometer and test strips. When specified (see 6.2), a Chlorine Photometer (NSN 6850-01-487-8812) and Chlorine Test Strips (NSN 6640-01-490-7587), for the determination of residual chlorine, shall be fu
