MANUFACTURING PROCESSESRAW MATERIALCOMPONENT - 1COMPONENT - 2COMPONENT - 3COMPONENT - 4COMPONENT - 5COMPONENT - 6COMPONENT - 7CASTINGPRIMARY FORMINGSECONDARY FORMINGMACHININGJOININGFINISHINGASSEMBLYFINAL PRODUCT

PACKAGE SPECIFIC QP APPROVAL PROCESSQPINPUT SUBMISSION OF QP FIRSTREQUIREMENT FOR QP APPROVALAPPROVAL OF MANUFACTURERSUBMISSION IN FORMATALL STAGES RAW MATERIAL, IN PROCESS, FINAL TESTING, PACKAGING, DISPATCHSUBMISSION OF REF. DOC.ALLOTMENT OF QP NO.

QP SUBMISSIONINTIAL CHECK BY PACKAGE CORDINATOR / TASK FORCEACCEPTABLENOT ACCEPTABLE

PACKAGE SPECIFIC QP APPROVAL PROCESSSUPPLIER APPROVAL CONDITIONSCOPE OF TESTING BASED ON CONTRACT SPEC., FINAL ENGG DOC., MANUFACTURER PLANT STANDARD, NATIONAL / INTERNATIONAL STD.MANUFACTURERS PRACTICE & PROCEDURESTATUTARY REQUIREMENTS (QA & I RELATED)FEED BACK RECEIVED IN PASTCOMMENTS ON EARLIER SUBMISSION

REVIEW BY DEALING ENGINEERIDENTIFICATION OF DOCUMENTATION REQUIREMENTS P,V.W & CHPAPPROVAL AS PER AUTHORIZATIONAPPROVAL IN CAT - IAPPROVAL IN CAT - II

MANUFACTURER SPECIFIC RQP/ RFQP APPROVAL PROCESSINPUT SUBMISSION OF RQP/ RFQP WITH REF. DOC. BY MANUFACTURERRESOURCES:-REQUIREMENT FOR QP APPROVALAPPROVAL OF MANUFACTURERSUBMISSION IN FORMATALL STAGES RAW MATERIAL, IN PROCESS, FINAL TESTING, PACKAGING, DISPATCHSUBMISSION OF REF. DOC.ALLOTMENT OF QP NO.

REVIEW BY DEALING ENGINEER & GROUP HEADCONTROLSSUPPLIER APPROVAL CONDITIONSCOPE OF TESTING BASED ON CONTRACT SPEC., FINAL ENGG DOC., MANUFACTURER PLANT STANDARD, NATIONAL / INTERNATIONAL STD.MANUFACTURERS PRACTICE & PROCEDURESTATUTARY REQUIREMENTS (QA & I RELATED)FEED BACK RECEIVED IN PASTCOMMENTS ON EARLIER SUBMISSION

IDENTIFICATION OF DOCUMENTATION REQUIREMENTS P,V.W & CHPAPPROVAL AS PER AUTHORIZATIONOUTPUT APPROVED RQP / RFQPDISTRIBUTION

MATERIAL OF CONSTRUCTION

C.I. STOP VALVE WORKING PRESSURE13 Kg / cm2 steam

WORKING TEMPERATURE2200 C

SR. No.DESCRIPTIONMaterialQTY.01BODYC.I.-210 FG 1500102BONNETC.I.-210 FG 1500103SPINDLES.S. 4100104GLANDC.I.-210 FG 1500105BUSHG.M. IS 318 GR.20106SEATS.S. 3040107DIAPHRAGMS.S. 3040108DIAPHRAGM NUTBRASS IS 3190109HAND WHEELC.I.01

CASTING PROCESS(FOR PRODUCTION OF A 10 VALVE)

FORGING PROCESS(FOR PRODUCTION OF A 10 VALVE)REPEAT STEPS FOR SECOND HALF OF THE VALVE MACHINING TO SHAPE AS PER DRAWINGCAST INGOTSREDUCE INGOTS TO BILLETSAT STEEL MILLDEVELOP DIESHEAT BILLETSPERFORM FIRST FORGING OPERATIONREHEAT WORK PIECEPERFORM SECOND FORGING OPERATIONREHEAT WORK PIECEPERFORM THIRD FORGING OPERATIONWELD HALVES TOGETHERHEAT TREATMENTFINISH MACHININGAT FOUNDRY SHOP

DEFINITIONS

REFERENCE QUALITY PLAN

RQP IS A DOCUMENT SETTING OUT THE SPECIFIC QUALITY PRACTICES AND PROCEDURES BEING FOLLOWED BY AN INDIVIDUAL MANUFACTURER RELAVANT TO PARTICULAR COMPONENT, PART OR MATERIAL BEING USED FOR THE PRODUCT BEING MANUFACTURED, WITHOUT THE REFERENCE OF PARTICULAR CONTRACT / PROJECTREFERENCE FIELD QUALITY PLAN

RFQP IS A DOCUMENT SETTING OUT THE SPECIFIC QUALITY PRACTICES AND PROCEDURES BEING FOLLOWED BY MAIN SUPPLIER / SYSTEM SUPPLIER RELAVANT TO PARTICULAR SYSTEM / EQUIPMENT TO BE ERECTED, WITHOUT THE REFERENCE OF PARTICULAR CONTRACT / PROJECT. IT COVERS ALL ACTIVITIES OF SITE FROM SITE RECEIPT, INSPECTION, STORAGE, PRE ERECTION AND ERECTION.

DEFINITIONS

STANDARD QUALITY PLAN

SQP IS A DOCUMENT SETTING OUT THE STANDARD QUALITY PRACTICES AND PROCEDURES SPECIFIED BY NTPC TO BE FOLLOWED BY MANUFACTURERS FOR A PARTICULAR COMPONENT, PART OR MATERIAL, WITHOUT THE REFERENCE OF PARTICULAR CONTRACT / PROJECT, WHICH ARE STANDARDISED IN RESPECT OF MATERIAL, PROCESS, TEST AND INSPECTION AND DO NOT VARY FROM MANUFACTURER TO MANUFACTURER.

DEFINITIONS

STANDARD FIELD QUALITY PLAN

SFQP IS A DOCUMENT SETTING OUT THE STANDARD QUALITY PRACTICES AND PROCEDURES SPECIFIED BY NTPC TO BE FOLLOWED BY MAIN SUPPLIER / SYSTEM SUPPLIER RELEVANT TO A PARTICULAR SYSTEM / EQUIPMENT TO BE ERECTED WITHOUT THE REFERENCE OF PARTICULAR CONTRACT / PROJECT. IT COVERS ALL ACTIVITIES OF SITE FROM SITE RECEIPT, INSPECTION, STORAGE, PRE ERECTION AND ERECTION.