SI | DESCRIPTION | CHARACTERISTIC | TYPE OF CHECK | QUANTUM OF CHECK | REFERENCE
DOCUMENTS | ACCEPTANCE CRITERIA | MANU | BDDE | CLIENT |
1 | INCOMING MATERIAL
CONTROL | | Surface
finishing, marking (size, Heat no.) | Random
sampling | | Approved
Technical Catalogue /Approved Order Specification & Drawing | P | R | |
1.1 | Body | Visual | | Random
sampling | | P | R | |
Chemical Composition | Chemical Analysis by
XRF | Random
sampling | | P | R | |
1.2 | Disc | Visual | | Random
sampling | | Approved
Technical Catalogue /Approved Order Specification & Drawing | P | R | |
Chemical Composition | Chemical Analysis by
XRF | Random
sampling | | P | R | |
1.3 | Seat | Visual Size | Surface
finishing Dimensional check up | Random
sampling | | Approved
Technical Catalogue /Approved Order Specification & Drawing | P | R | |
1.4 | Seals
(Bushes, ‘O’ ring | Visual Fitness | Surface
finishing and damage, dimensional check up | Random
sampling | | Approved
Technical Catalogue /Approved Order Specification & Drawing | P | R | |
2 | IN-PROCESS
INSPECTION | Machining
dimensions
| Measurement
by Vernier Caliper after machining | Random
sampling | | Approved
Technical Catalogue /Approved Order Specification & Drawing | P | R | |
2.1 | All
machined parts | Random
sampling | | P | W | |
3 | INSPECTION &
TESTING | | | | | API598 | P | W | |
3.1 | Pressure
test | Shell
test, disc strength, seat | Pressure
test by Hydrostatic test pump | Random
10% | | | | |
3.2 | Leakage Test | Seat Leakage | Pneumatic
test by compressed air | Customer’s
requirement | | API598 | P | W | |
3.3 | Operation | Actuation | opening
and closing of valve | 100% | | physical Result | P | W | |
3.4 | Surface
finishing | Painting finishing | Visual | 100% | | physical Result | P | W | |