|
S.No. |
Product |
Test Performed |
Checking Parameter |
Method of Checking |
Sample Size |
Frequency |
IMTE Used |
Acceptance
Criteria |
|
1. |
Forged Brass Valves
|
Physical
Verification |
Dimensions
|
Manual |
8 pcs / item |
Each lot. |
Varnier Calliper |
As per SS . QFM
/ QC / 01 |
|
Wall thickness |
Manual |
8 pcs / item |
-do- |
P–type Calliper |
As per SS . QFM
/ QC / 01 |
|
Cracks |
Visual |
13 pcs / item |
-do- |
--------- |
|
|
Unfilled |
Visual |
-do- |
-do- |
--------- |
|
|
Deep pits |
Visual |
-do- |
-do- |
--------- |
|
|
Shifting |
Visual |
-do- |
-do- |
--------- |
|
|
Deposits |
Visual |
-do- |
-do- |
--------- |
|
|
Nickel Coating |
Surface smoothness |
Visual |
-do- |
-do- |
--------- |
|
|
Flux ash |
Visual |
-do- |
-do- |
--------- |
|
|
Bare patches |
Visual |
-do- |
-do- |
--------- |
|
|
Pimples |
Visual |
-do- |
-do- |
--------- |
|
|
Lumps |
Visual |
-do- |
-do- |
--------- |
|
|
Rust strains |
Visual |
-do- |
-do- |
--------- |
|
|
Excess / less
deposits |
Visual |
-do- |
-do- |
--------- |
|
|
Alignment Test |
Straightness / 180� |
Manual |
-do- |
-do- |
Jigs |
|
|
Chamfering |
External /Internal threads |
Visual |
8 pcs / item |
-do- |
--------- |
No item without
chamfer |
|
Threading |
Gauge |
Manual |
8 pcs / item |
-do- |
Thread Gauge |
|
|
Chemical
Composition |
Copper content
|
Chemical |
2 pcs/item |
-do- |
|
|
|
Zinc Content |
Chemical |
2 pcs/item |
-do- |
|
|
|
Pneumatic Testing |
Leakage |
Manual |
Whole Lot |
-do- |
|
Tested on pneumatic
pressure of 15 kgf/cm2 while being dipped in water only for
gas valves |
|
Hydro Testing |
Leakage |
Manual |
Whole Lot |
-do- |
|
Tested on hydro pressure
of 15 kgf/cm2 |
Remarks :- 1. All
dimensions are in mm. unless otherwise
specified.
2. Calibrated
instruments are used for
inspection.
3. 100% pneumatic test is performed
for gas valves only. |