1、MIL-V-LbS5bE 48 999770b 0272253 B W 29 March 1988 SUPERSEDING MIL-V-l6556D(SHIPS) 1 May 1973 (See 6.7) MILITARY SPECIFICATION VALVE, SOLENOID, THREE-WAY BYPASS (NAVAL SHIPBOARD USE) This specification is approved for use within the Naval Sea Systems Command, Department of the Navy, and is available
2、for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 ScoDe. This specification covers three-way bypass valves, solenoid operated, for use as salinity actuated dump valves. 2. APPLICABLE DOCUHENTS 2.1 Governent docum ents . 2.1.1 $De cifications standar ds. The following
3、 specifications and standards form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in th
4、e solicitation. SPECIFICATIONS FEDERAL QQ-N-281 - Nickel-Copper Alloy Bar, Rod, Plate, Sheet, Strip, Wire, Forgings, and Structural and Special Shaped Sections. MIL-S-901 - Shock Tests, H.I. (High Impact); Shipboard Machinery, Equipment and Systems, Requirements for. MIL-E-917 - Electric Power Equip
5、ment, Basic Requirements (Naval Shipboard Use). Beneficial comments (recommendations, additions, deletions) and any pertinent 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
6、by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 4810 PISTRIBUTION STATEMENT 4 Approved for public release; distribution unlimited T Provided by IHSNot for ResaleNo reproduction or networking per
7、mitted without license from IHS-,-,-MIL-V-Zb55bE r 777790b 0272252 T MILITARY MIL-S-1222 MIL-E-2036 MIL-S-8805 MIL-S-8805/1 MIL-E-17555 MIL-F-20042 MIL-G-22050 MIL-C-24643 - Studs, Bolts, Hex Cap Screws, Socket Head Cap Screw and Nuts. - Enclosures for Electric and Electronic Equipment, Naval Shipbo
8、ard. - Switches and Switch Assemblies, Sensitive and Push (Snap Action), General Specification for. - Switches, Sensitive, SPDT, Unsealed. - Electronic and Electrical Equipment, Accessories, and Provisioned Items (Repair Parts): Packaging of. Brazing). Polar Fluids, Steam, and Air at Moderately High
9、 Temperatures. - Cable and Cord, Electrical, Low Smoke, for Shipboard Use, General Specification for. - Flanges, Pipe and Bulkhead, Bronze (Silver - Gasket and Packing Material, Rubber, for Use with MIL-C-24643/15 - Cable, Electrical, 1000 Volts, Type LSDSGU (Including Variation LSDSGA). STANDARDS F
10、EDERAL FED-STD-H28 - Screw-Thread Standards for Federal Services. MILITARY MIL-STD-167-1 - Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II - Internally Excited). MIL-STD-278 MIL-STD-798 - Nondestructive Testing, Welding, Quality Control, Material Control and Identifi
11、cation and HI-Shock Test Requirements for Piping System Components for Naval Shipboard Use. - Welding and Casting Standard. (Copies of specifications and standards required by contractors in connec- tion with specific acquisition functions should be obtained from the contracting activity or as direc
12、ted by the contracting activity.) 2.2 Other Dubiications. The following documents form a part of this specification to the extent specified herein, Unless otherwise specified, the issues of the documents which are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicita
13、tion. Unless otherwise specified, the issues of documents not listed in the DoDISS shall be the issue of the nongovern- ment documents which is current on the date of the solicitation. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-Lb55hE 48
14、 m 77777Oh 0272253 L m MIL-V-l6556E(SH) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 125 - Standard Specification for Steel Springs, Helical, Heat Treated. A 313 - Standard Specification for Chromium-Nickel Stainless and Heat-Resisting Steel Spring Wire. B 21 - Standard Specification for Nava
15、l Brass Rod, Bar, and Shapes. (DoD adopted) B 61 (DoD adopted) B 62 - Standard Specification for Composition Bronze or Ounce Metal Castings. (DoD adopted) 3 127 - Standard Specification for Nickel-Copper Alloy (UNS N04400) Plate, Sheet, and Strip, (DoD adopted) B 164 - Standard Specification for Nic
16、kel-Copper Alloy Rod, Bar, and Wire. (DoD adopted) (DoD adopted) - Standard Specification for Steam or Valve Bronze Castings (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Nongovernment standards and other pu
17、blications are normally available from the organizations which prepare or which distribute the documents. documents also may be available in or through libraries or other informational services.) These 2.3 Order of mecedence. In the event of a conflict between the text of this specification and the
18、references cited herein (except for associated detail specifikations, specification sheets or MS standards), the text of this specific- ation shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained.
19、3. REQUIREMENTS 3.1 First article. When specified in the contract or purchase order, a sample shall be subjected to first article inspection (see 4.2 and 6.3). 3.2 Materials. Materials used in the construction of the valve shall be as shown in table I. Where no material is specified for a particular
20、 application, the material used shall be of the quality best suited for the purpose intended. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-Lb55bE q8 = 999970b 027225Li 3 m Part TABLE I. Bateriala. Material Applicable document Stem Bonnet B
21、ody _ Nickel-copper-alloy ASTM B 164; QQ-N-281 Valve bronze ASTM B 61; ASTM B 62 I Valve bronze ASTM B 61 Bolts and nuts L/ Springs Solenoid and switches Disc I Nickel-copper-alloy I ASTM B 127; QQ-N-281 I Naval brass ASTM B 21, copper alloy No. C46400, half-hard Spring steel, cadmium ASTM A 125; AS
22、TM A 313 or electroplated zinc coated See 3.3.2 and 3.3.3 Seat rings I Nickel-copper-alloy I ASTM B 127; QQ-N-281 I Yoke _ Valve bronze or steel ASTM B 61; AISI C1018 or c1020 Lever Valve bronze or steel ASTM B 61; AISI C1018 or I c1020 I/ Manufactured and tested in accordance with MIL-S-1222. 3.3 C
23、onstruction. The valve shall be a three-way valve, arranged to allow flow from the outlet when the solenoid is energized via a relay from the salinity indicating system, and to be shifted by spring action into the dump position when the solenoid is de-energized. mechanically operated by the linkage
24、connected to the valve stem which will open the solenoid circuit upon solenoid de-energization, and which can only be closed when the valve is manually shifted to the outlet position. The valve shall be so constructed that it must be repositioned manually to allow flow to the outlet and that it may
25、be tripped manually to the dump position. An additional switch shall be connected to the linkage in such a way that it will close a circuit to a signal light to indicate when the valve is in the dump position. light shall not be a part of the valve. The complete valve shall be of the lightest and mo
26、st compact construction consistent with reliability. shall be constructed for 50 pounds per square inch (lb/in2) working pressure (see 4.2). The valve shall be provided with a switch The signal The valve 3.3.1 Valve. 3.3.1.1 ports. The inlet, outlet, and the dump port shall be flanged in accordance
27、with MIL-F-20042, 150-pound class. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-fiIL-V-Lb55bE 48 999990b 0272255 5 3.3.1.2 m. The valve bonnet shall be bolted to the body. 3.3.1.3 m. The valve disc shall be guided and positively secured to the val
28、ve stem, but in such a manner as to permit replacement. 3.3.1.4 Seata. The valve seats shall be renewable. The valve disc or seat The shall be provided with a resilient insert for seating (see 4.2.2 and 4.2.3). resilient material shall be in accordance with MIL-G-22050. 3.3.1.5 Stuff* boz. A stuffin
29、g box shall be provided, packed with acceptable packing. constructed as to prevent excessive bending on stem. and below may have gland nuts; those 2-1/2 inches and above shall be of the bolted type. Stuffing box shall be provided with glands, and shall be so Glands of valves 2 inches 3.3.2 Solen oid
30、. The electric equipment shall conform to MIL-E-917 and shall be suitable for an ambient temperature of 40 degrees Celsius (OC). noise level (hum) shall be kept to a minimum by using shading coils and accurate and small clearances between moving parts. dripproof covers in accordance with MIL-E-2036,
31、 and shall be arranged for entrance of cable conforming to type LSDSG of MIL-C-24643 and MIL-C-24643/15. The The solenoid shall be provided with 3.3.3 Switches. The switches shall be in accordance with MIL-S-8805 and MIL-S-8805/1, and shall be mounted in a watertight enclosure in accordance with MIL
32、-E-2036, arranged for entry of cable conforming to type LSDSG of MIL-C-24643 and MIL-C-24643/15. 3.3.4 Powe.1;. Electric equipment shall operate from a normal 115-volt, 60 hertz (Hz), single-phase power source. 3.3.5 Threaded Da rts. Threaded parts shall conform to FED-STD-H28. The construction shal
33、l be such that standard wrenches can be used throughout. 3.3.6 Weldine and allied mocesses. Welding and allied processes shall be in accordance with MIL-STD-278. 3.3.7 Shock. Valves shall pass the requirements of high-impact shock tests in accordance with MIL-S-901 and MIL-STD-798. shall be grade A,
34、 hull mounted, principal unit, complete assembly, class I, type A. Equipment and test classification 3.3.8 Vibration. Valves shall pass the vibration requirements in accor- dance with MIL-STD-167-1. 3.3.9 Interchangeabilitv. In no case shall parts be physically inter- changeable Dr reversible unless
35、 such parts are also interchangeable or reversible with regard to function, performance, and strength. 3.4 -. When specified in the contract or order, drawings shall be prepared (see 6.2.2 and the appendix). 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
36、IHS-,-,-tlIL-V-Lb55bE r8 993930b O272256 3 m 4. QUALITY ASSURANCE PROVISIONS 4.1 pesDonsibiJJ&v for inspection . Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise spe
37、cified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the sp
38、ecification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Besoonsibilitv f o C om D1 iance. All items must meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the cont
39、ractors overall inspection system or quality program. absence of any inspection requirements in the specification shall not relieve the contractor of any responsibility of assuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract.
40、Sampling in quality conformance does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. The 4.1.2 Insiiection system. When specified in the contract or order, an inspection system program plan shall
41、 be prepared (see 6.2.2). , 4.2 First article insDection. First article inspection shall be conducted at a laboratory satisfactory to the Naval Sea Systems Command (NAVSEA). article tests shall consist of the examination of 4.2.1 and the tests specified in 4.2.2 through 4.2.5. First 4.2.1 mation. Th
42、e various materials and parts of the components of each of the complete bypass valves shall be subjected to an examination to determine conformance with the various material specifications and with the requirements of this specification. 4.2.2 weration. The valve shall be installed in a line supplie
43、d with wet saturated steam at a minimum of approximately 215 degrees Fahrenheit (OF) (15.591 lb/in2 absolute) and the solenoid shall be connected to a source of the specified electrical current and voltage (see 3.3.4). steam flow for approximately 6000 cycles of operation. operation the valve shall
44、retain seat tightness in both of its operating posi- tions. mately 1000 cycles and at the completion of the cyclic test in accordance with 4.2.5. specified for the duration of the test. The valve shall be subjected to During this period of A test for seat tightness shall be conducted at intervals of
45、 approxi- The tripping mechanism and the electrical apparatus shall function as 4.2.3 Shock and vibration. Valves shall be shock and vibration tested in Upon completion of shock and vibration tests, accordance with 3.3.7 and 3.3.8. the valves shall be subjected to the tests specified in 4.2.4 and 4.
46、2.5. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-Lb55bE 48 999990b O272257 9 W 4.2.4 Ifydrostatic. The valve shall be subjected to a hydrostatic pressure of 100 lb/in There shall be no visible leakage through any part of the valve body, t
47、he packing gland, or seats with the valve in either of its operating positions. gauge for strength and porosity. 4.2.5 Seat tmtnesg. Each valve shall be subjected to the leak tests specified in 4.2.5.1 through 4.2.5.3. test condition. that no air is present. during the duration of each test. Test du
48、ration shall be 5 minutes at each The valve assembly shall be vented prior to each test to ensure No leakage shall be observed with the valve seat visible 4.2.5.1 tched Dosition. The valve shall be tested in the latched position, inleyport pressurized to 5 lb/in2 and the dump port at O lb/in2. 4.2.5
49、.2 PUW, Dositw. The valve shall be tested in the dump position, inlet port pressurized to 5 lb/in2 and the outlet port at O lb/in2. 4.2.5.3 btched Dosition. The valve shall be tested in the latched position, dump port pressurized to 15 lb/in2 and the inlet port at O lb/in2. 4.3 pro duction insDectioq . Each valve offered for delivery shall be subjected to the examination and test specified in 4.2.1, 4.2.4, and 4.2.5. 4.4 InsDection of Dac- .
