1、Comments, suggestions, or questions on this document should be addressed to Commander, Naval Sea Systems Command, ATTN: SEA 05Q, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or emailed to: commandstandardsnavsea.navy.mil, with the subject line “Document Comment”. Since c
2、ontact information can change, you may want to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil. AMSC N/A FSC 4330 INCH-POUND MIL-PRF-15618H (SH) 18 January 2006 SUPERSEDING MIL-PRF-15618G(SH) 7 January 2002 PERFORMANCE SPECIFICATION FILTE
3、R-SEPARATOR, FLUID, PRESSURE, AVIATION AND DISTILLATE FUEL, NAVAL SHIPBOARD This specification is approved for use by the 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 c
4、overs filter-separator assembly (see 6.5.2) for use in shipboard fuel systems. The filter-separator assembly described in this specification, with filter elements qualified to MIL-PRF-32148, is intended for use onboard Naval ships to remove solids and water from fuel systems. These filter-separator
5、assemblies are used with JP-5 fuel for aircraft, Naval Distillate or JP-5 for propulsion and auxiliary power gas turbines, Naval Distillate or JP-5 for diesel engines, and other miscellaneous internal combustion engines. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are s
6、pecified 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 information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautione
7、d 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 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this docum
8、ent to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-S-901 - Shock Tests, H.I. (High-Impact) Shipboard Machinery, Equipment, and Systems, Requirements For MIL-DTL-5624 -
9、 Turbine Fuel, Aviation, Grades JP-4 and JP-5 MIL-PRF-16884 - Fuel, Naval Distillate MIL-PRF-32148 - Filter Separator Elements, Fluid, Pressure, Aviation and Distillate Fuel, Naval Shipboard DEPARTMENT OF DEFENSE STANDARDS MIL-STD-167-1 - Mechanical Vibrations of Shipboard Equipment (Type I - Enviro
10、nmental and Type II - Internally Excited) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-15618H (SH) 2 (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or http:/assist.daps.dla.mil or from the Standar
11、dization 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 document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicita
12、tion or contract. AMERICAN PETROLEUM INSTITUTE (API) API/IP 1581 - Specifications and Qualification Procedures for Aviation Jet Fuel Filter/Separators (Copies of this document are available from API Publications, Global Engineering Documents, 15 Inverness Way East, M/S C303B, Englewood, CO 80112-577
13、6 or online at www.api.org.) ASME INTERNATIONAL ASME Boiler and Pressure Vessel Code, Section VIII, Pressure Vessels ASME B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 through 24 (DoD adopted) (Copies of these documents are available from ASME International, 22 Law Drive, PO Box 2900, Fairfield
14、, NJ 07007-2900 or online at www.asme.org.) 2.4 Order of precedence. 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 specif
15、ic exemption has been obtained. 3. REQUIREMENTS 3.1 General. The filter-separator assembly shall conform to API/IP 1581 unless otherwise indicated by this specification. The filter-separator shall utilize coalescer and separator elements (see 6.5.1 and 6.5.3) qualified to MIL-PRF-32148. 3.2 First ar
16、ticle. When specified (see 6.2), the filter-separator assembly shall be subjected to first article inspection in accordance with 4.1.1. 3.3 Materials. Materials used in the fabrication of the filter-separator assembly shall be stainless steel as specified (see 6.2) in accordance with API/IP 1581 exc
17、ept that copper-nickel alloys are allowed for replacement of existing units in copper-nickel piping systems. 3.3.1 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that t
18、he material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.3.2 Gaskets. Gasket material shall be compatible with the fuel types listed in 3.6.2. 3.4 Performance requirements. 3.4.1 Working pressure and flow rate. The filter-s
19、eparator assembly maximum allowable working pressure and flow rate shall be as specified (see 6.2). 3.4.2 Hydrostatic test. The filter-separator assembly shall meet hydrostatic test requirement of 150 percent of the design pressure. 3.4.3 Effluent fuel. The filter-separator assembly shall meet the e
20、ffluent fuel requirements specified in MIL-PRF-32148. 3.4.4 Solids holding capacity. The filter-separator assembly shall meet the solids holding capacity requirements specified in MIL-PRF-32148. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF
21、-15618H (SH) 3 3.5 Physical requirements. 3.5.1 Size and weight. The size and weight of the filter-separator assembly shall meet the specified flow capacity (see 3.4.1) and all other requirements of this specification. 3.5.2 Air eliminator. When specified (see 6.2), an air eliminator meeting the req
22、uirements of API/IP 1581 shall be provided. The air eliminator shall be removable for maintenance. 3.5.3 Water-slug shutoff. The filter-separator assembly shall be provided with a means of automatically stopping fuel discharge from the vessel when water in the sump exceeds the capacity of the drain
23、system. The device shall automatically revert to normal operation of the filter-separator during release of and after water is drained. The water-slug shutoff shall be designed to secure filter-separator effluent upon failure of the automatic device. A means of periodically testing the water-slug sh
24、utoff feature (without adding water) shall be provided. 3.5.4 Manual sump drain. A manually operated drain shall be installed at the low point of the filter-separator sump. The sump shall be fitted with an anti-vortex device to inhibit discharge of fuel with the water. 3.5.5 Automatic sump drain (op
25、tional). When specified (see 6.2), an automatic drain shall be installed in the sump drain line to automatically drain water during normal filter-separator operation. The automatic sump drain shall be designed to secure drain line flow upon failure of the automatic device. A means of isolation shall
26、 be provided upstream of the automatic drain device to permit maintenance. A visual flow indicator shall be provided downstream of the automatic drain device and shall be removable for maintenance. 3.5.6 Sampling connections. Sample connections shall be provided at the filter-separator inlet, outlet
27、, and sump to permit taking of fuel samples under flow conditions. 3.5.7 Level indication. A level indicating device shall be provided for observing water accumulation in the sump. The range of indication shall extend as close as possible to or below the bottom of the sump and shall provide indicati
28、on of the cleavage line between the fuel and water. A means of isolation and draining shall be provided. 3.5.8 Pressure indication. Pressure indicating devices shall be provided for observing the filter-separator inlet and outlet pressures. A differential pressure gage shall be installed with an aud
29、ible alarm to alert operator when pressure has reached prescribed limits across each stage of filtration, and display the pressure drop across each stage. A means of isolation shall be provided for maintenance of gages. 3.5.9 Accessibility and location. All components requiring manual operation or p
30、eriodic maintenance shall be easily accessible. Indicators shall be located within view of components requiring operation. 3.5.10 Fabrication. The filter-separator assembly shall be fabricated in accordance with the ASME Boiler and Pressure Vessel Code, Section VIII, Pressure Vessels. Pipe thread co
31、nnections shall not be used. Silver braze and solder joints shall not be used. Permanent joints shall be welded. Mechanical joints required for disassembly shall be flanged (2-inch NPS and larger) or union (below 2-inch NPS). 3.6 Interface requirements. 3.6.1 Inlet and outlet connections. Filter-sep
32、arator assemblies shall have horizontal, flanged inlet and outlet connections in accordance with ASME B16.5. Inlet and outlet connections shall be permanently marked. End connection size and type, shall be specified by the purchaser (see 6.2k). 3.6.2 Fuel types. The filter-separator assembly shall m
33、eet the requirements of this specification when operated with the following fuels: Type NATO code no. Specification JP-5 F-44 MIL-DTL-5624 Naval distillate F-76 MIL-PRF-16884 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-15618H (SH) 4 3.6.3
34、 Element spacing. Element spacing shall meet the requirements of API/IP 1581. 3.6.4 Element mounting. Element mounts shall be installed such that removal and installation of elements does not cause mount to rotate or loosen and a tight seal to the mounting plate is maintained. Element mounts shall h
35、ave a blunted V-type knife edge for sealing to a flat gasket on the filter-coalescer or separator. The height of the V section shall be 0.125 inch (3 mm) +10 percent. Torque requirements for installation of elements shall be provided as specified (see 6.2). Element mounts shall be designed to withst
36、and 150 percent of recommended assembly torque without permanent distortion, cracking, or failure. 3.7 Maintainability. 3.7.1 Access. Components that require regular maintenance or servicing shall be readily accessible and not require personnel to enter the filter-separator vessel. For very large fi
37、lter-separator assemblies, this may be unavoidable. If personnel entry is required, at least two equally spaced access openings shall be provided for safe personnel access and temporary ventilation. Filter-separators with access covers heavier than 50 pounds shall have an integral lifting device for
38、 removal. 3.7.2 Special tools. Special tools, if required for maintenance and servicing, shall be provided with the filter-separator assembly. 3.7.3 Case drainage. The filter design shall permit the casing to be completely drained of all fluids before servicing and maintenance. 3.8 Environmental req
39、uirements. 3.8.1 Shock. When first article inspection is required, the filter-separator assembly shall withstand Grade A shock requirements of MIL-S-901, without any leakage (see 4.1.1). 3.8.2 Vibration. When first article inspection is required, the filter-separator assembly shall withstand vibrati
40、on in accordance with MIL-STD-167-1, Type I Environmentally Excited (see 4.1.1). 3.8.3 Temperature variation. The filter-separator assembly shall meet the temperature variation requirements of API/IP 1581. 3.8.4 Materials. Filter-separator materials shall meet the environmental requirements of API/I
41、P 1581 for fuel types in this specification (see 3.6.2). 3.9 Identification plate. Identification plates shall be provided and comply with the requirements of API/IP 1581. Identification plates shall be visible from the location where gages are normally viewed. The permanent identification plate sha
42、ll also include the following information: MIL-PRF-15618, revision, amendment, and date. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.1.1). b. Conformance inspection (see 4.1.2). 4.1.1 Fi
43、rst article inspection. When first article inspection is required (see 6.2), one complete filter-separator assembly (see 3.1) shall undergo the tests and inspections outlined in Table I. 4.1.2 Conformance inspection. Each filter-separator assembly shall be inspected for conformance according to the
44、requirements specified in Table I. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-15618H (SH) 5 TABLE I. Inspection and test requirements. Attribute Requirement Verification First article Conformance INSPECTIONS Elements 3.1 4.2.1 X X Materi
45、als 3.3 4.2.1 X X Gaskets 3.3.2 4.2.1 X X Air eliminator 3.5.2 4.2.1 X X Water-slug shutoff 3.5.3 4.2.1 X X Manual sump drain 3.5.4 4.2.1 X X Automatic sump drain (if installed) 3.5.5 4.2.1 X X Sampling connection 3.5.6 4.2.1 X X Level indication 3.5.7 4.2.1 X X Pressure indication 3.5.8 4.2.1 X X A
46、ccessibility and location 3.5.9 4.2.1 X X Fabrication 3.5.10 4.2.1 X X Inlet and outlet connections 3.6.1 4.2.1 X X Element spacing 3.6.3 4.2.1 X X Element mounting 3.6.4 4.2.1 X X Access 3.7.1 4.2.1 X X Identification plate 3.9 4.2.1 X X TESTS Hydrostatic 3.4.2 4.2.2 and 4.2.2.1 X X Full scale 3.4.
47、1, 3.4.3, 3.4.4, and 3.5.1 4.2.2 and 4.2.2.2 X Water defense system 3.5.3 and 3.5.5 4.2.2 and4.2.2.3 X Shock 3.8.1 4.2.2 and 4.2.2.4 X Vibration 3.8.2 4.2.2 and 4.2.2.5 X Temperature variation 3.8.3 4.2.2 and 4.2.2.6 X Materials 3.8.4 4.2.2 and 4.2.2.7 X Provided by IHSNot for ResaleNo reproduction
48、or networking permitted without license from IHS-,-,-MIL-PRF-15618H (SH) 6 4.2 Inspections and tests. 4.2.1 Inspections. The filter-separator assembly, containing elements qualified to MIL-PRF-32148 shall be examined visually and checked dimensionally for conformance to drawings and the applicable r
49、equirements of Section 3 of this specification. 4.2.2 Tests. The filter-separator assembly, containing elements qualified to MIL-PRF-32148, shall be subjected to the full-scale test method in accordance with API/IP 1581. The test facility shall be in accordance with API/IP 1581. The test fluid shall be in accordance with API/IP 1581, Category M fuel. 4.2.2.1 Hydrostatic. The filter-separator assembly shall be hydrostatically tested in accordan
