NAVY MIL-H-43895 B-1986 HEATERS HOT WATER BOOSTER ELECTRIC SINK SANITIZING《电子热水调压加热器 消毒水槽》.pdf
《NAVY MIL-H-43895 B-1986 HEATERS HOT WATER BOOSTER ELECTRIC SINK SANITIZING《电子热水调压加热器 消毒水槽》.pdf》由会员分享,可在线阅读,更多相关《NAVY MIL-H-43895 B-1986 HEATERS HOT WATER BOOSTER ELECTRIC SINK SANITIZING《电子热水调压加热器 消毒水槽》.pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、MIL-H-438756 73 7777706 0242223 7 MIL-H-43895B 24 June 1986 SUPERSEDING MIL-H-43895A 25 August 1976 MILITARY SPECIFICATION HEATERS, HOT WATER BOOSTER, ELECTRIC; SINK, SANITIZING This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. T
2、his document covers electric water heaters designed to increase a sinks hot water temperature to 180F, 1.2 Classification. Heaters shall be of the following types and power ratings (see 6.1 and 6.2). Type Power rating (kilowatts) Dir e c t current (dc) 6 Alternating current (ac) 3, 4.5, 6, 9 2. APPL
3、ICABLE DOCUMENTS 2.1 Government documents. Unless otherwise specified, the following documents of the issue in effect on date of invitation for bids or request for proposal form a part of this document to the extent specified herein. I 1 Beneficial comments (recommendations, additions, deletions) an
4、d any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Natick Research, Development and Engineering Center, Natick, MA 01760-5014 by using the : =if-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this docu
5、ment or by letter. 1 1 msc N/A FSC 7320 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-43895B SPECIFICATIONS FEDERAL PPP-B-636 - Boxes, Shipping, Fiberboard MI L
6、I TARY MIL-L-35078 - Loads, Unit: Preparation of Semiperishable Subsistence Items; Clothing, Personal Equipment and Equipage: General Specification For STANDARDS MI LI TARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-129 - Marking for Shipment and Storage MIL-STD-130 - Ide
7、ntification Marking of US Military Property MIL-STD-255 - Electric Voltages Alternating and Direct Current Attributes (Copies of documents required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting offi
8、cer,) 2.2 Other publications. Unless otherwise specified, the following documents of the issue in effect on date of invitation for bids or request for proposal - form a part of this document to the extent specified herein. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 167 - Stainless and Heat-
9、Resisting Chromium-Nickel Steel Plate, Sheet and Strip D 3951 - Standard Practice for Commercial Packaging (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) UNDERWRITERS LABORATORIES, INC. (UL) UL 174 - Household
10、 Electric Storage-Tank Water Heaters UL 499 - Electric Heating Appliances (Application for copies should be addressed to the Underwriters Laboratories, Inc., 333 Pfingsten Rd., Northbrook, IL 60062.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
11、MIL-H-438958 73 W 9999906 02qZZ25 O W MIL-H-43895B (Technical society and technical association documents are generally available for reference from libraries, They are also distributed among technical groups and using Federal agencies.) +: 2.3 Order of precedence. In the event of a conflict between
12、 the text of this document and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this docu- ment shall take precedence. Nothing in this document, however, shall supersede applicable laws and regulations unless a specific exem
13、ption has been obtained. 3. REQUIREMENTS 3.1 Standard product. The heaters shall, as a minimum, be in accordance with the requirements of this document and shall be the manufacturers standard commercial product with any added features needed to comply with the requirements of this document. Modifica
14、tions to add features shall not incorporate different parts unless such parts are used on other current commercial models. Standard or modified commercial products furnished in accordance with this document shall be identifiable by all regular manufacturers or commercial service organizations servic
15、ing the brand involved. Service organizations shall be capable of providing complete parts and repair services on models furnished to the Government consistent with their normal commercial practices. s: 3.2 Codes and standards. The heaters shall comply with the applicable requirements of UL 174 or U
16、L 499 (see 4.1.2.1). * 3.3 Materials. Materials shall be as specified herein. Materials not definitely specified shall be of the quality normally used by the manufacturer in his standard heater provided the completed item complies with all provisions of this document. Recycled material may be used (
17、see 6.3). 3.3.1 Stainless and heat-resisting steel sheet, plate, and strip. Stainless and heat-resisting steel sheet, plate, and strip shall conform to type 302 or 304 of ASTM A 167. 3.4 Design and construction. The sink heater shall consist of a water heating reservoir, a waste collecting reservoir
18、, controls, safety device(s), and intake and outlet sink plumbing connections. The heater shall be designed to be securely mounted to the underside of.the sink. The heater shall be designed to boost the temperature of 140F water to a minimum of 180F and shall function by means of the sink water circ
19、ulating through the heating reservoir and back to the sink.by convection currents. The water heating reservoir shall be filled with water, even when the sink is drained, and there shall not be any leakage when tested as specified in 4.4.1. Maximum overall dimensions, excluding plumbing fittings, sha
20、ll be 18 inches long, inches wide, and 10 1/4 inches high. 3.4.1 Sink connections. Intake and outlet sink plumbing connections shall be provided for attaching the heater to the sink. Overall height of connections 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
21、from IHS-,-,-MIL-H-43895B shall not exceed 2 7/8 inches when installation to the sink is completed, Connections shall be along the center top of the unit. 3.4.2 Waste collecting reservoir. A waste collecting reservoir, adjacent to the water heating reservoir, shall be provided to remove and trap was
22、te particles from the main stream of the circulating water. . 3.4.2.1 Waste outlet. The waste reservoir shall be fitted with a quick opening discharge valve for the purpose of draining the waste reservoir without draining the heater reservoir. accessible to the operator when facing the front of the
23、heater. If the point of discharge of the discharge valve is a floor drain, there shall be an air gap or other backflow prevention device between the valve and drain. The valve operating handle shall be readily 3.4.3 Electrical characteristics. Unless otherwise specified (see 6.2), the heaters shall
24、operate on specified nominal system voltages of 120/208, 120/240 or 450-480 volts, 50/60 hertz (Hz), except that for dc operation the heater shall be 6 kW, with minimum 230 volts dc (vdc). The heater control system shall operate on nominal system voltages of 120, 208-240 volt ratings in ac. For line
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