1、AMSC N/A FSC 2935 INCH-POUND MIL-PRF-5636E 26 September 2008 SUPERSEDING MIL-PRF-5636D 29 December 1997 PERFORMANCE SPECIFICATION VALVE, LUBRICATING OIL COOLER, TEMPERATURE REGULATING WITH SURGE PROTECTION GENERAL SPECIFICATION FOR This specification is approved for use by the Department of the Air
2、Force and is available for use by all Departments and Agencies of the Department of Defense. Comments, suggestions, or questions on this document should be addressed to: Oklahoma City Air Logistics Center/ENSDAA, 3001 Staff Drive, Tinker AFB, OK 73145-3036 or emailed to af71tinker.af.mil. Since cont
3、act 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. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-5636E 2 1. SCOPE 1.1 Scope. This is a g
4、eneral specification for temperature regulating with surge protection lubricating oil cooler valves, incorporating oil pressure relief bypass, for use on oil coolers using petroleum or synthetic base lubricating oils. 1.2 Classification. Lubricating oil cooler valves (valves) will have a maximum con
5、tinuous oil flow capacity, and will be one of the following types, as specified (see 6.2): Type I - 300 pounds per minute capacity. Type II - 425 pounds per minute capacity. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are cited in sections 3, 4, or 5 of this specificati
6、on. 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 these lists, document users are cautioned that they must meet the requirements specified
7、in the 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 document to the extent specified herein. Unless other
8、wise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE STANDARDS MS33786 - Fitting Installation, Flared Tube and Hose, Swivel (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or from the Standardiz
9、ation 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 solicitatio
10、n or contract. AMERICAN SOCIETY FOR QUALITY (ASQ) ASQC-Z1.4 - Sampling Procedures and Tables for Inspection by Attributes (DoD-adopted) (ASQ documents may be obtained at http:/www.asq.org/ or from American Society for Quality, P.O. Box 3005, Milwaukee, WI 53201-3005 or 600 North Plankinton Avenue Mi
11、lwaukee, WI 53203.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-5636E 3 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM-B117 - Standard Practice for Operating Salt Spray (Fog) Apparatus (ASTM documents may be obtained at http:/www.
12、astm.org/ or addressed to the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) NATIONAL AEROSPACE STANDARDS METRIC (NASM) NASM33588 - Sampling Procedures and Tables for Inspection by Attributes (NASM documents may be obtained at http:/www.aia-aero
13、space.org/ or addressed to Aerospace Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3901.) 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
14、 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 Associated specification. The individual item requirements shall be as specified herein and in accordance with the appl
15、icable specification sheet. In the event of any conflict between the requirements of this specification and the specification sheet, the latter shall govern. 3.2 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2. 3.3 Recycled, rec
16、overed, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle cos
17、ts. 3.4 Materials. All materials shall be corrosion resistant or suitably treated to resist corrosion due to electrolytic decomposition, salt fog, and any other atmospheric condition that may be encountered during operational use or storage. The use of toxic chemicals, hazardous substances, or ozone
18、 depleting chemicals shall be avoided whenever feasible. 3.4.1 Compatibility. All materials shall be compatible with the lubricating oil specified in the acquisition document (see 6.2). No copper or magnesium shall be used. 3.5 Interface. Provided by IHSNot for ResaleNo reproduction or networking pe
19、rmitted without license from IHS-,-,-MIL-PRF-5636E 4 3.5.1 Fittings. The oil inlet and outlet fittings shall conform to MS33786. 3.5.2 Interface dimensions and weight. The interface dimensions and weight shall be as specified in the associated specification. 3.5.3 Locking threaded parts. Threaded pa
20、rts shall be secured to prevent loss during operation. Self-locking nuts, if used shall be in accordance with NASM33588. Staking or the use of lockwashers shall not be permitted. 3.6 Performance. 3.6.1 Leakage. The valve shall not leak when subjected to an air pressure of 85 +15 psi. 3.6.2 Valve oil
21、 pressure drop. The oil pressure drop across the valve shall not exceed 12 psi for both Type I and Type II valves at their maximum continuous oil flow capacity. 3.6.3 Temperature regulation. The valve shall incorporate a thermostatic device which, using a bypass passage, controls the temperature of
22、the oil at the valve outlet to the rated oil temperature and tolerance specified in the associated specification. The thermostatic device shall have temperature ratings for opening and closing as specified in the associated specification. The thermostatic device shall not allow the pressure differen
23、ce between the oil cooler inlet and outlet to cause an internal pressure that exceeds the oil cooler proof pressure specified in the associated specification. 3.6.3.1 Endurance of thermostatic device. The thermostatic device shall be capable of withstanding 10,000 thermal cycles of opening and closi
24、ng. 3.6.4 Pressure relief. The valve shall incorporate an oil pressure relief device for bypassing the oil cooler when oil pressure in the oil cooler reaches the oil pressure drop value tolerance specified in associated specification. When operating, the oil pressure drop shall not exceed the maximu
25、m oil pressure drop specified in the associated specification. 3.6.5 Surge protection. The valve shall incorporate a surge protection device for bypassing the oil cooler if subjected to an oil pressure at the oil cooler inlet that exceeds the oil cooler proof pressure, or to an oil surge with: a. vi
26、scous oil (10o +2oF). b. pressure at the inlet of twice the oil cooler proof pressure. c. hot oil (225o +2oF for petroleum base oil, 300o +10oF for synthetic base oil). 3.6.5.1 Endurance of surge device. The surge device shall withstand 100 cycles of oil pressure surges of 400 +5 psi for a period of
27、 15 seconds each. 3.6.6 Endurance of valve. The valve shall withstand 10,000 oil pressure cycles of opening and closing in the horizontal and vertical position. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-5636E 5 3.6.7 Fluid temperature.
28、The valve shall withstand oil temperatures of -65o to 275oF for petroleum base lubricating oil, and -65o to 350oF for synthetic base lubricating oil. 3.6.8 Vibration. The valve shall not leak when subjected to vibration with an acceleration of +10g and at the rated oil flow specified in the associat
29、ed specification. 3.7 Maintainability. The valve shall not require the use of special tools for maintenance. 3.8 Identification. The valve shall be permanently and legibly marked with the following (see 6.2): a. Nomenclature b. Serial number c. National stock number d. Contract number e. Manufacture
30、rs CAGE code f. Manufacturers part number g. Date of manufacture 3.9 Interchangeability. All parts having the same manufacturers part number shall be functionally and dimensionally interchangeable. 3.10 Cleanliness. The valve shall be free of foreign materials such as acids, alkaloids, halides, or o
31、ther foreign materials. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.2). b. Conformance inspection (see 4.3). 4.2 First article inspection. When required (see 6.2), first article inspecti
32、on shall be performed on two valves and shall include all tests in 4.6. 4.3 Conformance inspection. Conformance inspection shall include the tests indicated in 4.3.1 and 4.3.2. 4.3.1 Individual tests. Each valve shall be subjected to the following tests: a. Examination (see 4.6.1). b. Leakage (see 4
33、.6.2). 4.3.2 Sampling tests. Sampling tests shall be performed in accordance with the guidance in ASQC-Z1.4. Sampling shall begin at the inspection level (normal, tightened, or reduced) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-5636E 6
34、specified in the acquisition document (see 6.2). The sample of valves shall be subjected to the following tests: a. Temperature regulation (see 4.6.3). b. Pressure relief (see 4.6.4). c. Twice the oil cooler proof pressure oil surge (see 4.6.5.2). 4.4 Test conditions. Unless otherwise specified (see
35、 6.2), all inspections shall be performed in accordance with the following test conditions. 4.4.1 Atmospheric conditions. Tests shall be conducted at standard atmospheric conditions. 4.4.2 Oil. The oil used for all tests shall be specified in the acquisition document (see 6.2). 4.5 Requirements cros
36、s-reference matrix. Table I provides a cross-reference matrix of the section 3 requirements tested or verified in the paragraphs below. 4.6 Tests. 4.6.1 Examination. The valve shall be examined for compliance with requirements for materials, compatibility, interface, maintainability, identification,
37、 interchangeability, and the presence of foreign materials. 4.6.2 Leakage. The valve shall be submerged in water at 165o +10oF for 1 minute with air pressure of 85 +15 psi applied to the valve inlet with all other valve openings closed. There shall be no leakage. TABLE I. Requirements cross-referenc
38、e matrix. Requirement Verification Requirement Verification 3.2 4.2 3.6.4 4.6.4 3.4 4.6.1, 4.6.11 3.6.5 4.6.5 3.4.1 4.6.1, 4.6.8 3.6.5.1 4.6.6 3.5.1 4.6.1 3.6.6 4.6.7 3.5.2 4.6.1 3.6.7 4.6.8 3.5.3 4.6.1 3.6.8 4.6.9 3.6.1 4.6.2 3.7 4.6.1 3.6.2 4.6.10 3.8 4.6.1 3.6.3 4.6.3 3.9 4.6.1 3.6.3.1 4.6.3.1 3.
39、10 4.6.1, 4.6.12 4.6.3 Temperature regulation. In order to isolate the temperature regulation ability of the valve from any oil pressure relief device effects, the oil pressure at the valve inlet (PA) shall be less than the oil pressure drop which would start oil flow through the bypass passage. Oil
40、 at a temperature of 45o +2oF shall be circulated through the valve and bypass passage (see figure 1). The oil temperature shall be increased until oil starts to circulate into the oil cooler. This shall not Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
41、S-,-,-MIL-PRF-5636E 7 occur until the oil temperature reaches the valve opening temperature rating. The oil pressure at the oil cooler inlet (PB) shall not exceed the oil cooler proof pressure. The oil temperature shall be decreased until oil starts to flow through the bypass passage. This shall not
42、 occur until the oil temperature reaches the valve closing temperature rating. 4.6.3.1 Endurance of thermostatic device. The valve shall be immersed in oil hot enough to cause the thermostatic device to fully activate. It shall remain in the fully activated position for at least 1 minute. The valve
43、shall be removed from the oil until the thermostatic device has fully inactivated. It shall remain in the fully inactivated position for at least 1 minute. One cycle shall consist of the device completely activating and inactivating once. This shall be repeated 10,000 times. The valve shall then be
44、subjected to the temperature regulation test. 4.6.4 Pressure relief. With the valve bypass closed, oil shall be applied to the valve inlet at rated oil temperature and circulated through the valve at the maximum continuous oil flow capacity. Oil flow into the valve from the oil cooler outlet shall b
45、e gradually restricted. The minimum oil pressure drop PB - PD (see figure 1) required to start oil flow through the bypass passage of the valve shall be as specified in the associated specification. With the oil cooler outlet closed, the oil pressure drop PB - PD shall not exceed the maximum oil pre
46、ssure drop. 4.6.5 Surge protection. All air shall be eliminated from the system. 4.6.5.1 Viscous oil surge. The valve and oil cooler shall be filled with oil and then chilled to 10o +2oF. An oil surge of 400 +5 psi at a temperature not less than 60oF shall be applied to the valve inlet (see figure 1
47、). This oil pressure shall be maintained for a period of 15 seconds. The oil pressure at the oil cooler inlet shall not exceed the proof pressure of the oil cooler. The valve shall then be subjected to the leakage test specified in 4.6.2. 4.6.5.2 Twice the oil cooler proof pressure oil surge. If the
48、 valve has a combined temperature control and surge protection device, isolate any thermal effect on the temperature control device. Oil at a temperature of 45o +2oF and at twice the oil cooler proof pressure shall be applied to the valve inlet (see figure 1). The oil pressure shall be maintained fo
49、r a period of 15 seconds. The oil pressure at the oil cooler inlet shall not exceed the proof pressure of the oil cooler. The valve shall then be subjected to the leakage test specified in 4.6.2. 4.6.5.3 Hot oil surge. Oil at a temperature of 225o +2oF for petroleum base oil or 300o +10oF for synthetic base oil shall be circulated through the valve and oil cooler. Gradually restrict the oil flow at the o
