ASME_B73.3M-1997.pdf

STD.ASME B73.3M-EN6L199707596700587157T19ASME B73.3M-1997PECIFICATION FOR SEALLESSHORIZONTAL END SUCTIONCENTRIFUGAL PUMPSFOR CHEMICAL PROCESSAN AMERICAN NATIONAL STANDARDThe American Society ofMechanical Engineersopyright by the American Society Of Mechanical EngineersSTD.ASME B73.3M-EN6L199707596700587156955The American Society ofMechanical EngineersA N A M E RIC A NN A T I O N A L S T A N D A R DSPECIFICATION FOR SEALLESSHORIZONTAL END SUCTIONCENTRIFUGAL PUMPSFOR CHEMICAL PROCESSASM证B73.3M-1997STD.ASME B73.3M-EN6L1997075967005B7160503FOREWORD(This Foreword is not part of ASME B73.3M-1997.)In 1991 the ASME Standards Committcc B73.Chemical Standard Pumps,formed asealless pump working group to develop a standard for sealless pumps that would corespondto ASME B73.1M.Specification for Horizontal End Suction Centrifugal Pumps for ChemicalProcess.Though these pumps are sealless(i.e.,they do not use a dynamic seal to prevent leakagearound the drive shaft),leakage can occur as a result of certain types of wear or misopcration.The user must take appropriate supplemental safety precautions when operating these pumps.Suggestions for improvement of this Standard will be welcome.They should be sent toThe American Society of Mechanical Engineers,Secretary,B73 Committee,345 East 47thStreet.New York,NY I(M)17.This Standard was approved as an American National Standard on August 7.1997.公