1、INCH -POUNDDISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.MIL-DTL-51227C25 September 2013SUPERSEDINGMIL-P-51227B27 June 1972DETAIL SPECIFICATIONPUMP, CENTRIFUGAL, DECONTAMINATING APPARATUSInactive for new design after 14 March 1996This specification is approved for
2、use by the U.S. Army EdgewoodChemical Biological Center and is available for use by all Depart-ments and Agencies of the Department of Defense.1. SCOPE1.1 Scope. This specification covers a pump for a decontaminating apparatus.2. APPLICABLE DOCUMENTS2.1 General. The documents listed in this section
3、are specified in sections 3 or 4 of thisspecification. This section does not include documents cited in other sections of this specifica-tion or recommended for additional information or as examples. While every effort has beenmadetoensurethecompletenessofthislist, documentusersarecautionedthattheym
4、ustmeetall specifiedrequirementsofdocumentscitedinsections3or4ofthisspecification, whetherornot 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.
5、Unless otherwisespecified, the issues of these documents are those cited in the solicitation or contract.AMSC N/A FSC 4230Comments, suggestions, or questions on this document should be addressed to: U.S. Army EdgewoodChemicalBiologicalCenter, ATTN: RDCB-DEA-S, 5183BlackhawkRoad,AberdeenProvingGround
6、,MD 21010-5424oremailedtoAPGR-EcbcSpecsTeamconus.army.mil. Sincecontact informationcanchange, youmaywant toverifythecurrencyofthisaddressinformationusingtheASSIST Onlinedatabaseat https:/assist.dla.mil.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
7、MIL-DTL-51227C2DEPARTMENT OF DEFENSE SPECIFICATIONSMIL-DTL-12468 -Decontaminating Agent, STBMIL-DTL-51027 -Antisetting Compound, Decontaminating Slurry, M2DEPARTMENT OF DEFENSE STANDARDSMIL-STD-1916 - Preferred Methods for Acceptance of Product(Copies of these documents are available online at http:
8、/quicksearch.dla.mil/ or from theStandardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA19111-5094.)2.2.2 OtherGovernmentdocuments,drawings,andpublications. ThefollowingotherGov-ernment documents, drawings, and publications form a part of this document to the extentspe
9、cified herein. Unless otherwise specified, the issues of these documents are those cited inthe solicitation or contract.U.S. ARMY EDGEWOOD CHEMICAL BIOLOGICAL CENTERDRAWINGS5-45-2835 - Pump Assembly(Copies of these documents are available from U.S. Army Edgewood Chemical BiologicalCenter, ATTN: RDCB
10、-DEA-D, 5183 Blackhawk Road, Aberdeen Proving Ground, MD21010-5424.)2.3 Non-Governmentpublications. Thefollowingdocuments forma partofthisdocumentto the extent specified herein. Unless otherwise specified, the issues of these documents arethose cited in the solicitation or contract.AMERICAN INSTITUT
11、E OF CHEMICAL ENGINEERSAICHE E -31 - Centrifugal Pumps (Newtonian Liquids): A Guide toPerformance Evaluation, third edition(Copies of this document are available from http:/www.aiche.org/ or American Institute ofChemical Engineers (AIChE), 3 Park Avenue 19 Fl, New York, NY 10016-5991.)2.4 Order of p
12、recedence. Unless otherwise noted herein or in the contract, in the event ofa conflict betweenthe textof thisdocument andthe referencescited herein(except forrelatedspecification sheets), the text of this document takes precedence. Nothing in this document,however, supersedes applicable laws and reg
13、ulations unless a specific exemption has been ob-tained.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-51227C33. REQUIREMENTS3.1 Firstarticle. Whenspecified(see6.2),asampleshallbesubjectedtofirstarticleinspec-tion in accordance with 4.2.3.2
14、Design and construction.3.2.1 Materials. All materials cited on Drawing 5-45-2835 and its subsidiary drawingsshall conform to the specifications listed thereon or to the specific characteristics set forth onthe drawings. Material not definitely specified shall be of a quality regularlyused bymanufac
15、-turers of pumping equipment.3.2.2 Components. Allcomponentsoftheitemshallconformtothespecificationsanddraw-ings listed on Drawing 5-45-2835 and subsidiary drawings.3.2.3 Manufactureand assembly. The item shall be manufactured andassembled as shownon Drawing 5-45-2835.3.3 Functioning. The pumpshall
16、meetthe followingrequirementswhenrunningat 4400100revolutionsperminute(rpm)foraminimumperiodof15minuteswhentested asspecifiedin 4.4.1.(a) Discharge 100 gallons per minute (gpm) minimum of water at a discharge headof 205 feet1 foot with a minimum static lift of 15 feet.(b) Operate smoothly and not le
17、ak.(c) Prime in a maximum of 4 minutes by using no more than 9 gallons of water.3.4 Performance. The pump running at 4400100 rpm shall be capable of delivering aminimum of 50 gpm of STB slurry, made in accordance with 4.4.2, at a discharge head of 290feet1footandaminimumdynamicliftof10feet. Thepump
18、shall also delivera minimumof100 gpm of water at a discharge head of 205 feet1 foot with a minimum static lift of 15 feetwhen running at 4400100 rpm. The total head at zero flow shall be a minimum of 300 feet.The required horsepower (hp) to drive the pump shall not exceed 20 hp when running at440010
19、0 rpm andpumpinga minimum of50 gpm ofSTBslurryoranequivalentmassflowofwater at a minimum of 140 pounds per square inch (psi) at the discharge gage.3.5 Endurance. The pump shall be operated for a minimum of 250 hours with only minoradjustments. The pump shall operate smoothly without overloading or l
20、eakage when tested asspecified in 4.4.3.3.6 Performance curve. The discharge head versus capacity curve of the pump when testedas specified in 4.4.4 shall slope continuously from high head downward toward high capacity.The curve may approach constant head as the capacity increases but the head may n
21、ever in-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-51227C4crease. The head capacity coordinates indicated in 3.3 shall be on or below the pump perfor-mance curve.3.7 Weight. The assembledpump weightshall notexceed 100pounds whentested as
22、speci-fied in 4.4.5.3.8 Cavitation. Cavitation shall not occur when tested as specified in 4.4.6.3.9 Firstarticle. Whenspecified(see6.2),asampleshallbesubjectedtofirstarticleinspec-tion in accordance with 4.2.3.10 Workmanship. The pump shall be free from contamination (foreign matter, oil orgrease)
23、and damage such as cracks , burrs and sharp edges.4. VERIFICATION4.1 Classification of inspections. The inspection requirements specified herein are classi-fied as follows:(a) First article inspection (see 4.2)(b) Conformance inspection (see 4.3)4.2 First article inspection.4.2.1 Sample. The first a
24、rticle sample shall consist of two pumps manufactured using thesame methods, materials, equipment, and processes as will be used during regular production.The first article sample shall be submitted for inspection and approval in accordance with theterms of the contract.4.2.2 Inspection procedure. T
25、hefirstarticlesampleitemsshallbesubjectedtotheinspec-tion procedures specified in table I.TABLE I. First article inspection procedures.Inspection procedureNumber ofsample unitsRequirementparagraphPerformance 2 3.4Endurance 2 3.5Performance curve 2 3.6Weight 2 3.7Cavitation12 3.81Destructive test.Pro
26、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-51227C54.2.3 Acceptance criteria. If any first article sampleitem failsto complywith anyof theap-plicable requirements, the first article sample shall be rejected. The Government reserves therightt
27、oterminateinspectionuponanyfailuretocomplywithanyoftherequirements. Thecon-tractorshallobtainwrittenapprovalfromthecontractingactivitypriortoproceedingwithregu-lar production.4.3 Conformance inspection.4.3.1 Lotting. A lot shall consist of the items produced by one manufacturer, at one plant,from th
28、e same materials, under the same manufacturing conditions, and at the same time.4.3.2 Sampling. Sampling shall be conducted in accordance with the classification of char-acteristics in 4.3.5. Samples shall be selected at random.4.3.3 Inspectionprocedure. Sampleitemsshallbeinspectedinaccordancewithth
29、eclassifi-cation of characteristics in 4.3.5. Failure of any sample item to conform to any characteristicinthe classification of characteristics based on the sampling and acceptance criteria specifiedtherein shall be cause for rejection of the lot represented.4.3.4 Criticalcharacteristics. Unlessoth
30、erwisespecifiedintheclassificationofcharacteris-tics, the samplingandacceptance criteria forcritical characteristicsshall be in accordance withthe Critical characteristics paragraph of MIL-STD-1916.4.3.5 Classification of characteristics. Conformance inspections shall be as specified inthefollowingc
31、lassificationofcharacteristics paragraphs. Whenverificationlevels(VLs)arespeci-fiedforselectionofsamplesizesandacceptancecriteria, theattributessamplingplanofMIL-STD-1916 shall apply unless otherwise specified.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
32、IHS-,-,-MIL-DTL-51227C6CLASSIFICATION OF CHARACTERISTICSPARAGRAPH TITLE DRAWING NUMBER4.3.5(a) Pump assembly SHEET 1 OF1 5-45-2835CATEGORY CHARACTERISTICSAMPLING ANDACCEPTANCECRITERIAREQUIREMENTPARAGRAPHINSPECTIONMETHODCritical Functioning (less prime test) 100% inspection;acc 0, rej 13.3 4.4.1Major
33、101 Grease fitting present VL -III 3.2 VI102 Breather unobstructed VL -III 3.2 VI103 Prime time test VL -III 3.3 4.4.1104 Workmanship VL -III 3.10 VINOTES:CE - Commercial inspection equipmentVI - Visual inspectionProvided by IHSNot for ResaleNo reproduction or networking permitted without license fr
34、om IHS-,-,-MIL-DTL-51227C7CLASSIFICATION OF CHARACTERISTICSPARAGRAPH TITLE DRAWING NUMBER4.3.5(b) Tank pump SHEET 1 OF1 5-45-2756CATEGORY CHARACTERISTICSAMPLING ANDACCEPTANCECRITERIAREQUIRE-MENTPARA-GRAPHINSPEC-TIONMETHODCritical None definedMajor101 Mounting holes diameter VL -III 3.2 CE102 Mountin
35、g holes location VL -III 3.2 VI103 Thread (2-11-1/2NPT) VL -III 3.2 CE104 Thread (1/2-14NPT) VL -III 3.2 CE105 Marking correct and evident VL -III 3.2 CENOTES:CE - Commercial inspection equipmentVI - Visual inspectionProvided by IHSNot for ResaleNo reproduction or networking permitted without licens
36、e from IHS-,-,-MIL-DTL-51227C8CLASSIFICATION OF CHARACTERISTICSPARAGRAPH TITLE DRAWING NUMBER4.3.5(c) Cover, pump tankShaftSHEET 1 OF1 5-45-27765-45-2751CATEGORY CHARACTERISTICSAMPLING ANDACCEPTANCECRITERIAREQUIRE-MENTPARA-GRAPHINSPEC-TIONMETHODCritical None definedMajor101 Thread (3/8-18 NPT)(5-45-
37、2776)VL -III 3.2 CE102 Shaft diameter (0.875)(5-45-2751)VL -III 3.2 CE103 Keyway depth (0.245)(5-45-2751)VL -III 3.2 CE104 Width (0.2487)(5-45-2751)VL -III 3.2 CE105 Radius (0.887)(5-45-2751)VL -III 3.2 CENOTES:CE - Commercial inspection equipmentVI - Visual inspectionProvided by IHSNot for ResaleNo
38、 reproduction or networking permitted without license from IHS-,-,-MIL-DTL-51227C94.4 Tests.4.4.1 Functioning. Thepumpshall beoperated atthe requiredspeed forthe specifiedtimepumping water. Tests shall be conducted in accordance with procedures outlined in section500.0 of the American Institute of C
39、hemical Engineers Centrifugal Pump Manual.Thepumpshallbeobservedforsmoothnessofoperationandleakage.Dischargecapacity,dischargehead,stat-icliftandtimerequiredtoprimethepumpshallberecordedorcalculatedasoutlinedinsection600.0 of the American Institute of Chemical Engineers Centrifugal Pump manual.4.4.2
40、 Performance. The performance of the pump shall be as specified when connected toasuitabledriveandsupplytank.Thehorsepowershallbedeterminedwhenpumpingslurryandtestedinaccordancewithsection 500.0 or calculated in accordance withsection 600.0of theAmeri-can Institute of Chemical Engineers Centrifugal
41、Pump Manual. The slurry, whenrequiredfortheabove tests, shall have the following proportions:(a) Two hundred and twenty-five gallons of water.(b) Twelve and one half pounds of decontaminating slurry antiset M2 conforming toMIL-DTL-51027 (antiset shall be added to the water before STB).(c) Thirteen h
42、undred pounds of decontaminating agent STB conforming toMIL-DTL-12468.(d) 144 ounces of Antifoam (Antifoam Xiameter AFE 0200) or purchased from theGovernment Supply system using NSN: 6850-00-950-6489.4.4.3 Endurance. After completionofthe test in4.4.2 the pump shall be operatedpumpingslurryfromandto
43、atank.Freshslurrymixtureshallbepreparedwheneverrequired,butatleastevery 16 hours. The pump shall be flushed and cleaned whenever shutdown for more than 1hour. The pump shall run at 4400100 rpm and discharge the slurry through an orifice 0.5620.010inchindiameter. Necessaryprecautionsshall betakentoke
44、epthetemperatureofthemixturebeingpumpedbetween85Fand135Fwhiletesting. Theslurryshallhavethefollow-ing proportions for the above test:(a) Two hundred and twenty-five gallons of water.(b) 72 ounces of Antifoam (Antifoam Xiameter AFE 0200) or purchased from theGovernment Supply system using NSN: 6850-0
45、0-950-6489.(c) Six and one quarter pounds of decontaminating slurry antiset M2 conforming toMIL-DTL-51027 (the antiset shall be added to the water before the STB).(d) Six hundred and fifty pounds of decontaminating agent STB conforming toMIL-DTL-12468.4.4.4 Performance curve. Performance of the pump
46、 shall be determined using plain water.Testshall be conductedin accordance with proceduresoutlined in section 500.0 of the AmericanInstitute of Chemical Engineers Centrifugal Pump Manual; graphical presentation of the pumpperformancedatashall beinaccordancewithsection 700.0 of the American Institute
47、 of ChemicalProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-51227C10Engineers Centrifugal Pump Manual. A minimum of six points including no flow and maximumflow conditions shall be obtained for the discharge head-capacity curve.4.4.5 Weight.
48、Theweightofthepumpshallbeasspecifiedwhenweighedona suitablescaleaccurate to within 1 pound.4.4.6 Cavitation. Theimpellershall bevisuallyexaminedforcavitation aftertesting asspe-cified in 4.4.3. If necessary for examination, the impeller shall be cut perpendicular to the axisofrotation.Ifevidenceofcavitationispresent,thedesignisunsatisfactoryandshallberejected.If the impeller does not show
