NTPC Limited CC-OS, EOC Noida · of Valves and valve spares used in dry ash handling system. A) Details of MEG (Material Enlistment Group) MEG No 18MEG-04 MEG Description Valves and

1

NTPC Limited CC-OS, EOC Noida

Subject: Qualifying requirement & other details for vendor enlistment – Vendors for supply of Valves and valve spares used in dry ash handling system. A) Details of MEG (Material Enlistment Group)

MEG No 18MEG-04 MEG Description Valves and valve spares used in dry ash handling system Responsibility Centre CC&M-CPC

B) Technical Criteria of QR: 1. The applicant should be a Micro Small Enterprise (MSE) manufacturer of Valves and should

have manufactured valves for dry ash handling system. 2. The applicant should have in house pneumatic & hydraulic test facilities. 3. The applicant should have supplied minimum 50 nos. dry ash pneumatic conveying valves

assembly (complete valve) to coal based thermal power plants / dry ash handling package contractor in any continuous 365 days period in the last 5 years from the date of application for enlistment.

C) Documents to be submitted as proof of meeting the stipulated Qualifying

Requirements: 1. QR-1: Copy of valid MSE Certificate for being manufacturer of Valves and proof of being

manufacturer of Valves for Dry Ash Handling system.

2. QR-2: Self declaration from the vendor along with details of the specified facilities.

3. QR-3: Copy of Purchase Orders from Thermal Power Plants / Dry Ash handling system package contractor for supply of Dry Ash Pneumatic Conveying Valves along with execution proofs.

NTPC can ask more documents if felt necessary. Also all documents/ facilities can be verified/ assessed if required. To be declared as qualified, an applicant has to meet all the requirements

D) Other documents to be submitted: In addition to the documents required in support of meeting technical requirements as stated above, following documents are required to be submitted by the applicant for enlistment:

1. Three POs of highest executed values of similar work during last five years from the date of application (PO date should not be more than five (5) years old as on the date of the application) along with copy of invoice / completion certificate from the concerned buyer/s in support of successful execution of supply against POs.

2. Audited balance sheet including profit and loss statement for the previous three completed financial years reckoned from the date of application.

In case the audited results for the preceding financial year is not available, certification of financial statements from a practicing chartered account may be submitted. In case, Applicant is not able to submit the certificate from practicing chartered Account

2

certifying its financial parameters, the audited results of three consecutive financial years preceding the last financial year shall be considered for evaluating the financial parameters. Further a Certificate would be required from the CEO/CFO as per the format enclosed in the application format documents stating that the financial results of the company are under audit as on the date of Application and the Certificate from the practicing Chartered Accountant certifying the financial parameters is not available

3. Any other documents in addition to the above which the applicant wants to submit.

E) Note-1 Definition of Similar work (Refer to Point 1 of Row D above):- Supply of Valves for Dry Ash Handling System to Coal Based Thermal power Plants / Ash Handling System Package Contractors.

Note-2 The executed value means Basic value of quantity of similar works / orders executed / supplied against the reference PO (also applicable to partly executed PO, as on the date of application). Where PO value is composite (i.e. including taxes etc.), the applicant should submit item wise break up of composite PO value mentioning basic PO Value, Tax details etc.

3

A) Details of MEG MEG No 18MEG-04 MEG Description Valves and valve spares used in dry ash handling system Responsibility Centre CC&M-CPC

B) Technical Specifications 1. As given in attachment

Specification of Dry Ash Handling Valves & Spares

Specifications of material of construction:-

1) Sliding Gate Material Handling Valve:-

Slide Gate Housing ACI, Hardness-250BHN min

Slide Gate SS 410, Hardness-300BHN min or 10 mm thick MS with 10-15

microns of hard chrome plating on both side of plate. The

chrome plating thickness shall be equivalent to 300-350 BHN

Valve seat ACI, Hardness-250BHN min or Replaceable SS hardened &

smooth finished ( 250 BHN min)

Air Inlet Check valve CI FG260

Gland Housing CI FG260

2) Ash Intake Valve below ESP hopper (Swing check type MHV)

Valve Body CI FG220

Gate Disc ACI, Hardness 300BHN

Gate seat ACI, Hardness 250BHN

Gate shaft EN 8

Pivot ball EN 24

Valve adaptor ACI, Hardness 250BHN

3) ALV Rotary Segregatingvalve

Lower Deck Plate MS IS:2062

Chamber MS IS:2062

Valve seat (Repl) ACI, 250 BHN. HARDNESS MIN.

Gate Arm C.S. ASTM A-148, GR. 90-60

Gate ACI WITH 300-350 BHN. HARDNESS

Crank Arm DUCTILE IRON

Spool Piece MS IS:2062

4) Transporter Inlet/Outlet valve

Valve Body ACI, Hardness 250 BHN

Gate Disc ACI, Hardness 400 BHN

Gate seat(Repl) ACI, Hardness 400 BHN

Gate shaft EN8

Pivot ball EN24

Valve adaptor ACI, Hardness 250 BHN

5) Transporter Inlet Cup Valve

Valve Body ACI, Hardness 250BHN

CUP Cast Steel, IS 1030, Gr280-520W, Chrome plated

Lever IS 2068, Gr E250A

Seal Ring Viton Rubber

Shaft EN8

Valve Face, Covers IS 2062, Gr.E250A

Connecting Rod IS 2062, Gr.E250A

6) Segregating Slide Gate Valve

Valve Body ACI, Hardness-250BHN min

Slide Gate SS410, Hardness-300BHN min

Valve seat ACI, Hardness-250BHN min

End Cap CI FG260, IS210

Spacer Adaptor CI FG260, IS210

7) Rotary Slide Gate Branch Isolating Valve

BODY GRAY IRON, ASTM A159-70, CL-G4000, 250 BHN

SLIDE GRAY IRON, ASTM A159-70, CL-G4000, 250 BHN

SHAFT C40, IS1570

BUSHING BRONGE, SAE 841/ASTM B-438-73/ EQUAL

GASKET SILICON RUBBER

SEAT (Repl) GRAY IRON, ASTM A159-70, G4000, 250 BHN

8) Double Disk Valve

Middle Ring ACI, 250 BHN

End Ring ACI, 250 BHN

Disk Tool Steel D3, ASTM A681, Hardness 550 BHN

Seat Ring Tool Steel D3, ASTM A681, Hardness 550 BHN

Rod Seal PTFE

Gland Spring Spring Steel, EN45

Disk Drive EN 8

Disk Pin EN 36, Hardness 500-550 BHN

Disk Spring Spring Steel, EN45

9) Three way Equalizing valve

Spacer CI FG 260, IS:210

Valve Seat EN-31, Hardness 500 BHN

Adaptor CI FG 260, IS:210

Top Port Adaptor CI FG 260, IS:210

Valve Disk Sub Ass. EN31, Hardness 500 BHN

Side Port Adaptor CI FG 260, IS:210

Gland Follower CI FG 260, IS:210

Bottom Adaptor MS, IS:2062 GR. B

Sleeve SS 304

Quality Plan:

As per annexed Sheet

ITEM : MATERIAL

HANDLING VALVE

INDICATIVE QUALITY PLAN SHEET –1 OF 2 REV : 00 DATE :30.10.19

S.No COMPONENT/OPER

ATION CHARACTERISTIC CLASS TYPE OF

CHECK QUANTUM OF CHECK

REFERENCE DOCUMENT

ACCEPTANCE NORMS

FORMAT OF RECORD

AGENCY** REMARKS

D* M C N

1 2 3 4 5 6 7 8 9 10 11 1.0 RAW MATERIAL/ IN-PROCESS INSPECTION 1.1 Slide Gtae Chemical

Composition Major Chemical One sample per Heat

As per appd. Drg./DS As per Col.7 QC

Report P V

Mech. Properties Major Mech. 1/Heat As per appd. Drg./DS As per col.7 QC

Reprot P V

Hardness Major Measure-ment

One sample per Heat


Report P V

1.2 Valve Body ,Valve outlet, Valve Seat & Slide gate housing

Chemical Composition Major Chemical One sample

per Heat Apprd

Drg/DS/Mfg std As per Col.7 QC Report P V


One sample per Heat


Report P V

1.3 End cover Chem & Mech Major Tensile & hardness

1 per Lot As per appd. Drg./DS

As per appd. Drg./DS

QC Report P V

1.4 Air inlet check valve Material check

function Major

Tensile, hardness &

Manual operation

1 per Lot As per appd. Drg./DS

As per appd. Drg./DS

QC Report P V

2.0 IN-PROCESS INSPECTION 2.1 Valve Body (Flange

Valve Body and Slide Gate Housing)

Casting Defects & Dimension Major Visual & Measuement 100% Mfr Std. As per Col.7 QC

Report P

2.2 Valve Outlet, Valve Seat Dimensional Conformity Minor Measure-ment 10% Mfr DRG As per Col.7 QC

Report P

2.3 Slide gate Dimension including thickness Minor Measurement 10% Apprd/Mfg Drg As per Col.7 QC

Report P V

LEGEND D* : RECORDS INDENTIFIED WITH “TICK” SHALL BE

ESSENTIALLY PROVIDED BY CONTRACTOR IN QA DOCUMENTATION

** M : MANUFACTURER / SUB-CONTRACTOR C : MAIN CONTRACTOR, N-NTPC

INDICATE “P” PERFORM “W” WITNESS & “V” VERFICATION AS APPROPRIATE “CHP” NTPC SHALL BE IDENTIFIED IN COLUMN “N”, MTC : MATERIAL TEST CERTIFICATE, IR : INSPECTION REPORT

FOR NTPC USE

ITEM : MATERIAL HANDLING VALVE


S.No COMPONENT/OPERATION

CHARACTERISTIC CLASS TYPE OF CHECK

QUANTUM OF

CHECK

REFERENCE DOCUMENT

ACCEPTANCE NORMS

FORMAT OF RECORD

AGENCY** REMARKS

D* M C N 1 2 3 4 5 6 7 8 9 10 11 Valve seat & slide

gate Grinding & Lapping Major Kerosene fill test

100% Apprd Drg/Mfr Drg As per Col.7 QC

Report P W 10% witness by NTPC. Refer Note 3.

3.0 FINAL INSPECTION 3.1 Assembly Dimension and

Completeness Major Visual/ /measurement 100% Appd.Drg. As per Col.7 QC

Report. P W 10% witness by NTPC

3.2 Check for Operation Completeness &appearance

Operation Check (10 cycles) along with pneumatic cylinder

Major Visual & operation with air

100% As per app. Drg./DS

Smooth Operation

QC Report P W

10% witness by NTPC

3.3 Check for painting Paint shade,DFT Minor Visual 100%

Apprd Painting schedule/Apprd Drg/Mfg std

As per Col.7 QC Report P

Note : 1. All material shall be as per NTPC approved drawing/data sheet 2. No weld repair is allowed on Alloy CI/CI. 3. No visible flow of kerosene from the matching joint for a duration of 2 Min. However the appearance of film at the matching joint will not be a cause of rejection.



** M : MANUFACTURER / SUB-CONTRACTOR C : MAIN CONTRACTOR, N-NTPC


FOR NTPC USE

Rev.00

DT:30.10.2019

SH 1 0f 2

S NO COMPONENT/ CHARACTERISTIC CLASS TYPE OF QUANTUM REFERENCE ACCEPTANCE FORMAT OF REMARKSOPERATION CHECK OF CHECK DOCUMENT NORMS RECORD M C N

1 2 3 4 5 6 7 8 9 D* 10 111 RAW MATERIAL/IN-PROCESS INSPECTION1.1 Slide Gate Chemical Composition Major Chemical One sample/Heat Apprd DRG/DS As per Col.7 Mfr.TC's/QCR √ P V Corelation shall be

Maintained by IndureHardness Major Measurement One Sample per As per Appd.Drg/. As per Co;.7 QC Report √ P V

Heat Data SheetMech. Properties Major Mechanical 1/heat Apprd DRG/DS As per col.7 QC Report √ P V

1.2 Valve Body Chemical Composition Major Chemical One Sample per Apprd DRG/DS As per Col.7 QC Report √ P VHeat

Hardness Major Measurement One Sample per As per Appd.Drg./ As per Co;.7 QC Report √ P VHeat Data Sheet

1.3 End Cap Chemical Composition Major Chemical One sample Apprd DRG/DS As per col.7 QC Report P Vspacer,adaptor per heat

1.4 Valve Seat Chemical Composition Major Chemical One sample Apprd DRG/DS As per col.7 QC Report √ P V(Replaceble Alloy per heat

Hardness Major Measurement One Sample per As per Appd.Drg./ As per Co;.7 QC Report √ P VHeat Data Sheet

V V2 IN-PROCESS INSPECTION2.1 Valve Seat Casting Defects Major Visual 100% Appd.Plant Std. As per Col.7 QC Report P

Dimensional Conformity Minor Measurement Only critical Dim. Mfr Drg. As per Col.7 QC Report P

Grinding and Lapping MajorKerosine Fill test with master plate 100% Apprd DRG/DS/Mfr StdApprd DRG/DS/Mfr Std QC Report √ P W

CHP(10% witness by NTPC).Refer Note 3

LEGENDS FOR NTPC USE*RECORDS IDNETIFIED WITH "TICK"SHALL BE ESSENTIALLY

PROVIDED BY CONTRACTOR IN QA DOCUMENTATION

** M:MANUFACTURER/SUB-CONTRACTOR

C : CONTRACTOR/NOMINATED INSPECTION AGENCY N : NTPC

INDICATE "P"PERFORM "W"WITNESS & "V"VERIFICATION AS

APPROPRIATE "CHP" NTPC SHALL IDENTIFIED IN COLUMN "N" REVIEWED BY NAME &SIGN OF APPROVING AUTHIRITY &SEAL

AGENCY**

ITEM : SEGREGATING SLIDE VALVE INDICATIVE QUALITY PLAN

Rev.00

DT:30.10.2019

SH 2 0f 2


1 2 3 4 5 6 7 8 9 D* 10 112.2 Valve Body Dimensional Conformity Major Measurement Only critical Mfr Drg. As Per Col.7 QC Report P

DimensionsCasting Defects Major Visual 100% Mfr Std As Per Col.7 QC Report P

2.3 End cap, End Dimensional Conformity Minor Measurement Random 5% Mfr Drg. As Per Col.7 QC Report PCover

Casting Defects Minor Visual 100% Mfr Std As Per Col.7 QC Report P

2.4 Slide Gate Dimensional Conformity & Thickness

Minor Measurement 100%

Mfr Drg.

As Per Col.7 QC Report P

Grinding Major Visual 100% Mfr Drg. Ground Finish QC Report √ P V3 FINAL ASSEMBLY & INSPECTION

3.1 Assembly Dimension&Completenes Major Visual 100% As per appd.drg As Per Col.7 QC Report √ P WCHP (10% witness by NTPC)

3.2 Check for operationOperational Check Major Visual& 100% As per appd.drg Smooth operation QC Report √ P WCHP (10% witness by NTPC)

completeness& (10 Cycles) along operationAppearance with cylinder Check

3.3 Check for painting Paint shade,DFT Minor Visual 100% As Per Col.7 QC Report P

NOTE : 1. All materials shall be as per appd. Drg./data sheet. 2. No welding permitted on castings. 3. No visible flow of kerosene from the matching joint for a duration of 2 Min. however the appearance of film at the matching joint will not be a cause of rejection.

LEGENDS FOR NTPC USE*RECORDS IDNETIFIED WITH "TICK"SHALL BE ESSENTIALLY






AGENCY**

Apprd Painting schedule/Mfg std

ITEM : SEGREGATING SLIDE VALVE INDICATIVE QUALITY PLAN

FORMAT NO.: QS-01-QAI-P-10/F3-R1 1/1 ENGG. DIV./QA&I

ITEM(Material, Class, Grade, Rating, Range, Size, etc.) Ash Transporter Vessel inlet outlet valve

INDICATIVE QUALITY PLAN REV. NO: 00

DATE :01.11.2019

PAGE 01 OF 01

Reviewed by:-

Approved by:-

CONFORMING TO CODE: SL. No. COMPON

ENT & OPERATION

CHARACTERISTICS

CLASS TYPE OF CHECKS

QUANTUM OF CHECK

REFERENCE DOCUMENTS

ACCEPTANCE NORMS

FORMAT OF RECORDS

AGENCY REMARK

M C/N M C N

1 2 3 4 5 6 7 8 9 D* 10** 11 1. Raw Material 1.1

Body, Gate Disk & Gate Seat

Surface condition Hardness Chemical composition

Major Major Major

Visual Lab test Chemical

100% 1/heat 1/heat

1/heat 1/heat

…. Approved Drawing Approved Drawing

No cast defects Approved Drawing Approved Drawing

IR TC TC

P P P

V V V

V V

1.2 Shaft Chemical composition Physical properties UT(for dia. >50mms)

Major Major

Lab test Ultrasonic

1/lot 100%

1/lot 100%

Approved drawing

ASTM A388

Approved drawing Note 1

TC TC

P P

V V

V V

Note 1: When back wall echo (BWE) set to 100%. Full screen height (FSH), a defect echo>20% FSH is not acceptable. Also loss of BWE>20% is not acceptable.

2 In Process Inspection

2.1 Machining of components

DPT Major NDT 100% 100 % ASTM E 165 No Relevant Indication

IR P V V

2.2 Pressure test of body

Leakage test Major Hydraulic 100% 10% Approved drawing

No leakage

IR P W W

2.3 B/O: Diffuser Fluidizing pad

Std. Mfr. TC Major Measurement Review

100% 100 % Approved drawing/ Mfg. Standard/ Data sheet

Approved drawing/ Mfg. Standard/ Data sheet

Mfr. TC

P V V

3 Final inspection

3.1 Assembly Completeness & Dimensions

Major Visual & measurement

100% 10% Approved drawing

Approved drawing IR P W W .

Final check Major Operation 100% 10% Approved drawing

Smooth operation IR P W W

4. Painting Color Shade & DFT Major Visual & measurement

100% Random

Approved drawing

Approved drawing IR P V

legeNd: * Records, identified with “Tick” ( ) SHALL be essentially included by SUPPLIER in QA documentation. ** M: Manufacturer / Sub-SUPPLIER C: MAIN SUPPLIER, N: NTPC p: perform W: witness and V: verification. as appropriate, CHP: Ntpc shall identifY in colum “N” AS ‘W’.


ITEM (Material, Class, Grade, Rating, Range, Size, etc.) Ash Intake Valve

INDICATIVE QUALITY PLAN REV. NO: 00

DATE : 01.11.2019

PAGE 01 OF 01

Reviewed by:-

Approved by:-

CONFORMING TO CODE:

SL. No.

COMPONENT & OPERATION CHARACTERISTICS CLASS TYPE OF CHECKS

QUANTUM OF CHECK

REFERENCE DOCUMENTS

ACCEPTANCE NORMS

FORMAT OF RECORDS

AGENCY REMARK

M C/N M C N

1 2 3 4 5 6 7 8 9 D*

10** 11

1. Raw Material 1.1

Body, Gate Disk, Gate Seat & adopter

Surface condition Hardness Chemical composition

Major Major Major


100% 1/heat 1/heat

1/heat 1/heat

…. Approved Drawing Approved Drawing

No cast defects Approved Drawing Approved Drawing

IR TC TC

P P P

V V V

V V


Major Major

Lab test Ultrasonic

1/lot 100%

1/lot 100%

Approved drawing

ASTM A388


TC TC

P P

V V

V V

Note 1: When back wall echo (BWE) set to 100%. Full screen height (FSH), a defect echo>20% FSH is not acceptable. Also loss of BWE>20% is not acceptable.

2 In Process Inspection 2.1 Machining of components DPT Major NDT 100% 100 % ASTM E 165 No Relevant

Indication IR P V V

2.2 B/O: Diffuser Fluidizing pad

Std. Mfr. TC Major Measurement Review

100% 100 % Approved drawing/ Mfg. Standard/ Data sheet

Approved drawing/ Mfg. Standard/ Data sheet

Mfr. TC

P V V

3.1 Final Inspection Completeness & Dimensions

Major Visual & measurement

100% 10% Approved drawing Approved drawing IR P W W

Functional test Major Operation 100% 10% Approved drawing Smooth operation IR P W W Leakage test Major Vacuum 100% 10% Approved drawing No leakage/

Approved Drawing IR P W W

4. Painting Color Shade & DFT Major Visual & measurement

100% Random Approved drawing Approved drawing IR P V

Legends: * Records, identified with “Tick” ( ) SHALL be essentially included by SUPPLIER in QA documentation. ** M: Manufacturer / Sub-SUPPLIER C: MAIN SUPPLIER, N: NTPC p: perform W: witness and V: verification. as appropriate, CHP: Ntpc shall identify in column “N” AS ‘W’.


ITEM (Material, Class, Grade, Rating, Range, Size, etc.) EQUALIZING AND VENT VALVE

INDICATIVE QUALITY PLAN

REV. NO: 00

DATE :01.11.2019

PAGE 1 OF 1

Reviewed by:-

Approved by:-

CONFORMING TO CODE: VALID UPTO : SL. No.

COMPONENT & OPERATION

CHARACTERISTICS CLASS TYPE OF CHECKS

QUANTUM OF CHECK

REFERENCE DOCUMENTS

ACCEPTANCE NORMS

FORMAT OF RECORDS

AGENCY REMARK

M C/N M C N

1 2 3 4 5 6 7 8 9 D*

10** 11

1. Raw Material 1.1 End cover, middle ring Surface condition

Hardness Chemical

Major Major Major


100% 1/heat 1/heat

1/heat

…. Approved Drawing Approved/Mfg Drawing

No cast defects Approved drg. Approved/Mfg Drawing

IR TC TC

P P P

V V V

V V

1.2 Disk & seat ring Chemical & Hardness Major Lab test

One sample/lot

One sample/lot

Approved drawing / Data sheet

Approved drawing/ Data sheet

TC P V V


Major Major

Lab test NDT

1/lot 100%

1/lot 100%

Approved drawing / Data sheet ASTM A388


TC UT report

P P

V V

V V

Note 1: When back wall echo(BWE) set to 100%. Full screen high (FSH), a defect echo>20% FSH is not acceptable. Also loss of BWE>20% is not acceptable.

2 In Process Inspection 2.1 Hydro test of end covers Pressure test Major Hydraulic 100% 100% Approved drawing No leakage IR P V V 2.2 Machining of components DPT Major NDT 100% 100 % ASTM E 165 No Relevant

Indication IR P V V

3. Final Inspection 3.1 Assembly Completeness &

Dimensions Major Visual &

measurement 100% 10% Approved drawing Approved

drawing IR P W W

3.2 Final check Major Operation 100% 10% Approved drawing Approved drawing

IR P W W

4. painting Color Shade & DFT Major Visual & measurement

100% Random

Approved drawing Approved drawing

IR P V

legeNd: * Records, identified with “Tick” ( ) SHALL be essentially included by SUPPLIER in QA documentation. ** M: Manufacturer / Sub-SUPPLIER C: MAIN SUPPLIER, N: NTPC p: perform W: witness and V: verification. as appropriate, CHP: NTPC shall identify in column “N” AS ‘W’.

ITEM : EQUALISING VALVE




QUANTUM OF CHECK

REFERENCE DOCUMENT

ACCEPTANCE NORMS

FORMAT OF RECORD

AGENCY** REMARKS

D* M C N 1 2 3 4 5 6 7 8 9 10 11

1.0 RAW MATERIAL/ IN-PROCESS INSPECTION 1.1 Valve Disc & Seat Chemical

Composition Major Chemical One sample per Heat Apprd Drg/DS As per Col.7 Mfr.T.C

/QCR. P V


One sample per Heat As per appd. Drg. As per Col.7 QC

Report P V

1.2 Adaptor & spacer (C.I FG 260)

Chemical Composition Major Chemical One sample per

Heat Apprd Drg/DS As per Col.7 QC Report P

Tensile Test Major Mech. One sample per Heat Apprd Drg/DS IS-210 QC

Report P V

2.0 IN-PROCESS INSPECTION 2.1 Adaptor & spacer Casting Defects Major Visual 100% Mfr Std As per Col.7 QC

Report P V

Dimensional Conformity Minor Measure-

ment Only critical dimensions Mfr Drg. As per Col.7 QC

Report P V

2.2 Valve Disc and Seat

Dimensional Conformity Minor Measure-

ment 10% Mfr Drg As per Col.7 QC

Report P V



** M : MANUFACTURER / SUB-CONTRACTOR C : INDURE, N-NTPC


FOR NTPC USE DOC. NO.

MANUFACTURER / SUB CONTRACTOR SIGNATURE

REVIEWED BY NAME & SIGN OF APPROVING AUTHORITY & SEAL

ITEM : EQUALISING VALVE




QUANTUM OF CHECK

REFERENCE DOCUMENT

ACCEPTANCE NORMS

FORMAT OF RECORD

AGENCY** REMARKS

D* M C N 1 2 3 4 5 6 7 8 9 10 11

Grinding & Lapping Major Kerosene fill test

100% Apprd Drg/Mfr Drg As per Col.7 QC

Report P

Refer Note 3. 10% shall be witnessed by NTPC.

3.0 FINAL INSPECTION 3.1 Assembly

Dimension and Completeness Major Visual

Checking 100% Appd.Drg. As per Col.7 QC Report. P W

10% shall be witnessed by NTPC.

3.2 Check for Operation Completeness &appearance

Operation Check (10 cycles) along with pneumatic cylinder

Major Visual & operation with air

100% As per app. Drg. Smooth Operation QC Report P W

10% shall be witnessed by NTPC.

Check for painting Paint shade, DFT Minor Visual 100%

One coat of primer/Apprd Painting procedure

As per Col.7 QC Report P

Note : 1. All material shall be as per approved drawing/data sheet 2. No weld repair is allowed on Alloy CI/CI. 3. No visible flow of kerosene from the matching joint for a duration of 2 Min. However the appearance of film at the matching joint will not be a cause of rejection.



** M : MANUFACTURER / SUB-CONTRACTOR C : INDURE, N-NTPC


FOR NTPC USE DOC. NO.

MANUFACTURER / SUB CONTRACTOR SIGNATURE

REVIEWED BY NAME & SIGN OF APPROVING AUTHORITY & SEAL

Rev.00

DT:30.10.2019

SH 1 0f 2


1 2 3 4 5 6 7 8 9 D* 10 111 RAW MATERIAL/IN-PROCESS INSPECTION

1.1 Gate&Gate Seat Chemical Composition Major ChemicalOne Sample per heat As per Appd.Drg. As per Col.7 Mfr.TC's/QCR √ P V

Hardness Major MeasurementOne Sample per heat As per Appd.Drg. As per Co;.7 QC Report √ P V

1.2 Yoke,coverChem & mech Composition Major Chemical 01/Heat Apprd Drg As per Col.7 QC Report P

Louver Chamber &Louver Deck

1.3Gate arm & crank arm Chem composition Major Chemical 01/Heat Apprd Drg As per Col.7 QC Report √ P V

2 IN-PROCESS INSPECTION2.1 Yoke,cover Dimensional- Major Measurement 100% Mfr Drg. As per Col.7 QC Report P V

Louver Chamber & ConformityLouver Deck

2.2 Gate&Gate Seat Dimensional Confmity Major Measurement 100% Mfr Drg. As per col.7 QC Report P V

Grinding and Lapping Major Leakage(Kero 100% See note 4 As per col.7 QC Report √ P W10% witness by NTPC. Ref. Note 3

sine fill test)LEGEND FOR NTPC USE*RECORDS IDNETIFIED WITH "TICK"SHALL BE ESSENTIALLY






AGENCY**

ITEM : ROTARY SEGREGATING VALVE INDICATIVE QUALITY PLAN

Rev.00

DT:30.10.2019

SH 2 0f 2


1 2 3 4 5 6 7 8 9 D* 10 112.3 Gate Arm&Mach- Dimensional Conformity Major Measurement Only critical Mfr Drg. As Per Col.7 QC Report P V

iend parts Dimensions3 FINAL INSPECTION

3.1 Assembly Dimension& Major Measurement 100% As per appd. Drg. As Per Col.7 QC Report √ P W 10% witness by NTPCCompleteness

3.2 Check for opera- Operation Check(10 Major Operational 100% As per appd. Drg. Smooth operation QC Report √ P W 10% witness by NTPCtion complete- cycles)along with ness and appea- CylinderrenceCheck for painting Physical Appearance Minor Visual 100% One coat of pri- As Per Col.7 QC Report P

mer/NTPC Spec.NOTE : 1. All materials shall be as per appd. Drg./data sheet. 2. No welding permitted on castings. 3.No visible flow of kerosene from the matching joint for a duration of 2 Min.however the appearance of film at the matching joint will not be a cause of rejection

LEGEND FOR NTPC USE*RECORDS IDNETIFIED WITH "TICK"SHALL BE ESSENTIALLY






ITEM : ROTARY SEGREGATING VALVE INDICATIVE QUALITY PLAN

AGENCY**