NAVY MIL-H-18158 E-1990 HOSE DUCTING LOW PRESSURE NAVAL SHIPBOARD PORTABLE VENTILATING SET USE《海军军舰可移动的低压导管通风装置》.pdf

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1、-8 .;- INCH-POUND MIL-H-l8158E(SH) 30 November 1990 SUPERSEDING 21 October 1980 MIL-H-18158D (SH) MILITARY SPECIFICATION HOSE DUCTING, LOW PRESSURE, NAVAL SHIPBOARD PORTABLE, VENTILATING SET USE This specification is approved for use by the Naval Sea Systems Command, Depanment of the Navy? and is av

2、ailable for use by all depanments and agencies of the Deparfment of Defense. 1. SCOPE 1.1 Scope. This specification covers lightweight, cloth covered, wire reinforced, helical seam, portable ventilation hose used aboard Navy ships. 1.2 Classification. Hose assembly and the stowage rack shall be of t

3、he following classes, as specified (see 6.2). Class 1 - Magnetic Class 2 - Nonmagnetic 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein.

4、 Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertin

5、ent 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 Document Improvement Proposal (DD Form 1426) appearing at the end of this docu

6、ment or by letter. AMSC NIA FSC 4720 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SPECIFICATIONS FEDERAL PPP-B-636 PPP-B-665

7、 PPP-F-320 t MILITARY MIL-P-116 MIL-E-15145 - MIL-H-L15E 47 W 7479706 0457260 2 i? MIL-H-l8158E(SH) DOD-P-15328 MIL-L- 19140 DOD-P-21035 STANDARDS FEDERAL FED-STD- 162 FED-STD-191 FED-STD-751 MILITARY MTT .-S7T)-37R ME-STD-1186 Boxes, Shipping, Fiberboard Boxes, Paperboard, Metal Edged and Component

8、s Fiberboard; Corrugated and Solid, Sheet Stock (Container Grade), and Cut Shapes Preservation, Methods of Enamel, Zinc Dust Pigmented, Fresh Water Tank Protective (Formula No. 102) Primer (Wash), Pretreatment, (Formula No. 117 for Metals); (1VIetric) Lumber and Plywood, Fire-Retardant Treated Paint

9、, High Zinc Dust Content, Galvanizing Repair; (Metric) Hose, Rubber, Visual Inspection Guide for Textile Test Methods Stitches, Seams, and Stitchings Weldino and CactinZ Standard I Cushioning, Anchoring, Bracing, Blocking, and Waterproofing with Appropriate Test Methods MIL-STD-2073-1 DOD Material P

10、rocedures for Development and Application of Packaging Requirements 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H- 181 58E(SH) (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are availabl

11、e from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 191 11-5094.) 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 her

12、ein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWING NAVAL SEA SYSTEMS COMMAND (NAVSEA) 803-607819 Hose 8, 10, 16 Inch and Pack for Portable Ventilation Set (Application for copies should be addressed to: Commander, Portsmouth Naval Shipyard, Code 202.2, Portsmout

13、h, NH 03801.) 2.2 Non-Government publications. The following document(s) form a part o 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 s

14、pecified, the issues of documents not listed in DODISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING MATERIALS (ASTM) A 123 Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products; (DOD adopted) A 525 Standard Speci

15、fication for General Requirements for Steel Sheet, Zinc- Coated (Galvanized) by the Hot-Dip Process; (DOD adopted) A 569 Standard Specification for Steel, Carbon (0.15 Maximum, Percent), Hot- Rolled Sheet and Strip, Commercial Quality; (DOD adopted) Standard Specification for Zinc; (D6D adopted) B6

16、B 159 Standard Specification for Phosphor Bronze Wire; (DOD adopted) B 201 Standard Practice for Testing Chromate Coatings on Zinc and Cadmium Surfaces B 209 Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate; (DOD adopted) 3 Provided by IHSNot for ResaleNo reproduction or networ

17、king permitted without license from IHS-,-,-t- t *, MIL-H-LBLSBE 47 W 0b OY592b2 b W B 633 Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel; (DOD adopted) A 764 Steel Wire, Carbon Drawn Galvanized, and Galvanized at Size for Mechanical Springs D 3951 Standard Practice f

18、or Commercial Packaging; (DOD adopted) (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) AIR MOVEMENT AND CONTROL ASSOCIATION (AMCS) Standard 210 Laboratory Methods of Testing Fans for Rating (Application for cop

19、ies should be addressed to the Air Movement and Control Association, 30 West University Drive, Arlington Heights, IL 60004.) AMERICAN WELDING SOCIETY (AWS) A5.1 Covered Carbon Steel Arc Welding Electrodes (Application for copies should be addressed to the American Welding Society, Inc., 500 N.W. LeJ

20、eune Road, P.O. Box 351040, Miami, FL 33135.) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of preceden

21、ce. 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 First article

22、. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.3 (see 6.4). 3.2 Material. Materials used in the construction of the hose assembly and hose storage rack shall be of a high grade and free from defects. 3.2.1 Dissimilar metals. Aluminum alloys s

23、hall not be placed in direct contact with copper or any copper bearing alloys. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2.2 Recovered materials. Unless otherwise specified herein, all equipment, material, and articles incorporated in the p

24、roducts covered by this specification shall be new and may be fabricated using materials 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 a

25、nd 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 of used or rebuilt products is allowed under this specification unless otherwise specifically specified. 33 Construction. 3.3.1 Dimensions and tolerance

26、s. The physical dimensions and tolerances of the hose assembly and the hose stowage rack shall conform to Drawing 803-607819. 33.1.1 Hose assembly. Each hose assembly, consisting of a length of hose to which required connectors are secured, shall be not less than 15 feet in length nor more than 15 f

27、eet 4 inches in length. The hose length shall be measured with the hose suspended vertically and with a 10-pound weight fastened to the lower end. Each length of hose shall be collapsible to a length not to exceed 30 inches. 33.2 Hose. The hose shall be of the helical seam type, stiffened with a hel

28、ically wound spring wire. On stitched seam type the helical spring wire shall have a free length pitch substantially greater than the pitch of the seam, to exert axial tension on and to prevent transverse collapse of the hose. The pitch of the seam shall not exceed 4-1/4 inches and shall benot less

29、than 3-1/4 inches. 333 Strip. A strip of the coated fabric (see 3.3.9), of the width necessary to give a pitch as specified in 3.3.2, shall be wound helically upon itself with overlapping edges between which shall be laid the helically wound spring wire. 3.3.4 Hose end. Each section of hose shall te

30、rminate at each end with a cuff which shall contain a retaining ring made from nylon rod. The hose end shall be collapsible by hand so as to be snapped within the hose connector. The hose end and retaining ring when not subjected to a deforming force shall return naturally to its original fully expa

31、nded shape. 33.5 Ground. Grounding straps shall be placed on each end of each hose section so as to ensure that a continuous ground will be established through the helical spring wire when hose sections are attached to end connectors. 33.6 Helical spring. The helical spring for holding the hose axia

32、lly extended shall have a minimum wire diameter of 0.135 inch. The free length diameter of the coil, when collapsed to the length of the extended hose, shall be the same as the hose diameter. The ends of the helical spring shall be secured to the end connectors or hose end in such a manner as to for

33、m a continuous electrical ground for the helical spring and .end connectors when multiple lengths of hose are joined together. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3.6.1 Helical spring for class 1. The helical spring for class 1 hose a

34、ssembly shall be made of a galvanized hard drawn MB wire conforming to ASTM A 764 with the exception that it shall have a minimum tensile strength of 215,000 psi. The wire shall be zinc coated or rendered corrosion resistant by a nonphosphate process with a rust inhibiting agent. 3.3.6.2 Helical spr

35、ing for class 2. The helical spring for class 2 hose assembly shall be of phosphor-bronze conforming to alloy A of ASTM B 159. 3.3.7 Connectors. Connectors furnished on hose lengths from all supply sources shall be interchangeable without the necessity of machining or handfitting of any kind. Each l

36、ength of hose shall be supplied with the appropriate couplings for the connection of additional hose lengths or the portable blower. Connectors for both classes of hose assembly shall be of aluminum alloy in accordance with alloy 6061 T6 of ASTM B 209. 33.8 Scuff strips. The hose shall be provided w

37、ith nonmetallic flame-resistant scuff strips in such a manner that the basic fabric and seams will be protected from excessive abrasion when dragged along a ships deck or lowered through a hatch. The flame resistance of the scuff strip shall equal or exceed the minimum requirements of the fabric (se

38、e 3.3.9.3). Additionally, the scuff strip shall not wear through in less than 3,000 cycles (see 4.5.1). 3.3.9 Fabric. 3.3.9.1 Base cloth. The base cloth used shall be made of a polyester fiber that conforms to the requirements of this specification. 3.3.9.2 Coating. The compound used in coating the

39、fabric shall be comprised of synthetic rubber utilizing polymerized chloroprene or chlorosulfonated polyethylene as the basic material. The coating on both sides of the fabric, and shall contain no material which will be injurious to the skin in handling. 35.93 Coated fabric. The coated fabric shall

40、 have the following characteristics: a. Weight, ounces per square yard - 10 to 25 b. Breaking strength - pounds minimum, 175 warp, 140 fill c. Abrasion resistance - wear through shall not occur in less than 7,500 cycles d. Weathering resistance - breaking strength shall be not less than 75 percent o

41、f the initial strength. e. Accelerated aging - breaking strength shall be not less than 75 percent of the initial strength 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-g. Low temperature effect - shall not crack h. Flame resistance - (1) After f

42、lame, 2 seconds maximum (2) Char length, 3 inches maximum (average) (3) Melt and drip, the coated fabric shall not melt or drip when exposed to flame, 33.10 Thread. The thread used in all stitching shall be 3-ply nylon or polyester and shal exhibit a minimum average breaking strength of 8.50 pounds.

43、 33.11 Seams. Seams shall conform to LSa-2 of ED-STD-751. The width of the seams shall contain the spring wire to form a satisfactory seam. Seams shall be stitched, cemented, or molded and cured to withstand the requirements and tests of this specification. 3.3.11.1 Seam stitching. Seams containing

44、the spring wire shall be stitched with a two-needle sewing machine with the needles straddling the wire. Seams joining the end cuts to the hose body shall be stitched with a double-needle sewing machine; all other seams shall be sewn with a single- or double-needle machine. Stitching shall conform t

45、o type 301 of FED-STD-751. The space between rows of stitching and the edge strip shall be not less than 1/8 or more than 318 inch. Not more than two bobbin breaks shall be allowed in a %-foot length of seam and where these occur the break shall be backstitched for a distance of not less than 1 inch

46、. 3.4 Tensile strength. Hose shall withstand a tensile pull of at least 400 pounds before breaking. 3.5 Pressure drop. The air pressure drop through three standard lengths of hose shall not exceed 1.25 inch watergauge for the following size hoses at the specified air flow rate: a. 8-inch hose at 500

47、 cubic feet per minute (ft3/min) b. 10-inch hose at 850 ft3/min c. 16-inch hose at 2,000 ft3/min. The middle section of hose shall have a 90-degree bend and the air flow shall be measured downstream of the hose discharge (see 4.5.5). 3.6 Abrasion resistance, simulated service. The hose shall withsta

48、nd a minimum of 200 abrasion cycles, simulating wear over a hatch coaming, before the reinforcing wire is exposed or holes are formed in fabric. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-lL5E 47 W 799770b O4572bb 3 MILH-l8158E(SH) 3.7 B

49、randing, Each length of hose assembly shall be branded in a color contrasting to that of the hose, showing the manufacturers name and address, date of manufacture by month and year, class of hose assembly and number of this specification. 3.8 Stowage racks. When specified (see 6.2), stowage racks shall be furnished and shall conform to the requirements specified in 3.3.1 and 3.8.1 through 3.8.4. 3.8.1 Stowage rack for class 1. St