Pipes For pipes spools, elbows, reducers, tees etc. |
Flanges |
Purchased from reputed suppliers. | Purchase of flanges from reputed suppliers. |
Dimensional check | Dimensional Check |
Verification of Test Certificates from suppliers | Random testing of material at reputed laboratories. |
Random testing of samples at reputed laboratories | |
Forging of Elbows and Reducers | Welding / Fabrication |
Identification (Stamp transfer when applicable) | Welder Qualification |
Dimensional Check | Dimensional Check |
Heat Treatment (Stress relieving) | Visual Inspection |
Random testing for hardness | |
Liner | Lined Pipes and Fittings |
Visual Inspection | Visual |
Tensile Strength | Dimensional |
Elongation | Spark Test at 10KV |
Specific Gravity | Hydraulic Test at 429 psi. |
Description | Item : PTFE Lined Pipes Specification |
Type of Inspection | Scope of Inspection FPPS |
I. C. S. PIPES (Bought Out) | ASTM A 106 GR "B" | Visual | 100% |
Sch 40 Seamless quality | Dimensional | 100% | |
Test Certificate | 100% | ||
II. FLANGES : | IS 2062, Gr-A | Visual | 100% |
Fix (Modified slip on type) | ANSI B16.5 | Dimensional | 100% |
Loose & Collar (Bought Out) | ASA 150 Rating | Test Certificate | 100% |
III. P.T.F.E. LINER | Specification for lining | Visual | 100% |
(In house manufactured) | ASTM D 1457 | Dimensional | 100% |
ASTM F 1545 | Physical Test Certificate | 100% |
Description | Item : PTFE Lined Pipes Specification |
Type of Inspection | Scope of Inspection FPPS |
I. FABRICATION | As per FPPS Fab. Drg. | Dimensional | 100% |
Visual | 100% | ||
II. LINING OF PIPES | ASTM F 1545-95 | Visual | 100% |
Flare Inspection | 100% | ||
Dimensional | 100% |
Description | Item : PTFE Lined Pipes Specification |
Type of Inspection | Scope of Inspection FPPS |
I. Hydrostatic Test | ASTM F 1545-95 | At 429 psi | 100% |
II. Spark Test | ASTM F 1545-95 | At 10 KV | Random |
III. Visual | ASTM F 1545-95 | Lining | 100% |
IV. Dimensional | ASTM F 1545-95 | Length | 100% |
NOTE: Hydro Test or Spark Test as per ASTM F 1545-95 |
I - Circles / Flanges / Other Machined Items |
Action By |
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1 | Punch Plate No. on the circles being cut from the plate | Sub Contractor | |||||
2 | Transfer the Plate No. on the O.D. surface of circles after machining | Sub Contractor | |||||
3 | Punch on the O.D. surface of Flanges / Other machined items as follow | Sub Contractor | |||||
Supplier | NB | Dimension | Material | Plate No. | Machinist | ||
MMI | 50 | ASA -150 | IS 2062 | P-102 | FE | ||
4 | Punch Identification No. on flanged Spacer / Reducing Flange at O.D. surface after Plate No. / Machinist punch.. | Sub Contractor | |||||
5 | Punch last 4 digits of Set No. on Flanged Spacer/ Reducing Flange after Identification No. punch. | Sub Contractor | |||||
6 | Punch last 4 digits of Set No. on Flanged Spacer / Reducing Flange after identification No. punch. | Sub Contractor | |||||
7 | Fill Traceability Report for Flanged Spacer/ Reducing Flange | Sub Contractor | |||||
8 | Punch Inspector’s stamp as follows | ||||||
a. For Flanges: at O. D. surface off flanges after Plate No./ Machinist punch | |||||||
b. For Flanged Spacer/ Reducing Flange: at O.D. surface after set no. punch or after keeping gap |
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9. | Submit Traceabillity Report along with challan approved by inspector. | Sub Contractor | |||||
NOTE: Punch size: for Identification No. it is 8 mm and for other details it is 5 mm |
II - Forgings / Fabricated Items | Action By | ||||||||
1. | a. | Transfer code no. of pipes on each part pcs of the particular length of pipe to be used for fabricated pipes, tees and plain forgings. | Sub Contractor | ||||||
b. | Fill the pipe code stamp transfer report accordingly. | Sub Contractor | |||||||
PN – XXX Within 300 mm from fixed flange for lined pipe. | |||||||||
For Elbow at center | |||||||||
For Tee at center | |||||||||
For Reducer at ¼ of the length | |||||||||
2 | Punch Lot No. on the plain forgings. Re-punch pipe code no. if it is distorted during forging. | ||||||||
F XXX PN - XXX | |||||||||
3 | Punch Identification No. on the fabricated items as follows | Sub Contractor | |||||||
For Pipe: At O.D. surface of fixed flange after Lot No./ Machinist / Flange Inspector’s punch | |||||||||
For Tee: At O.D. surface of TCF and BCF after Lot No. / Machinist / Flange Inspector’s punch | |||||||||
For Elbow: At O.D. surface of fixed flange after Lot No. / Machinist / Flange Inspector’s punch | |||||||||
For Reducer: At O.D. surface of bigger size flange after Lot No. / Flange /Inspector’s punch | |||||||||
4 | Punch last 4 digits of set no. on the fabricated items after identification no. punch | Sub Contractor | |||||||
5 | Punch clients part no.,if it is there on the fabricated items as follows | Sub Contractor | |||||||
For Pipe: Below pipe code no. | |||||||||
For Tee: Below pipe code no. on main body | |||||||||
For Elbow/ Reducer: Below forging lot no./ pipe code no. | |||||||||
For Instrument Tee: Below pipe code no. at branch body | |||||||||
6 | Fill Traceability report for fabricated items | Sub Contractor | |||||||
7 | Punch Inspector’s Stamp as follows: - | ||||||||
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Sub Contractor in presence of inspector |
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8 | Submit Pipe Code Stamp transfer report and traceability report along with challan approved by Inspector | Sub Contractor | |||||||
Note: Punch size: For identification No. it is 8 mm and for other details it is 5mm |
PTFE LINED PIPES: 2 NOS. EACH
PTFE LINED ELBOWS: 2 NOS. EACH
PTFE LINED TEES: 2 NOS. EACH
QUALIFICATION TESTS AS PER ASTM F- 423 - 82 FOR PTFE LINED PIPES AND FITTINGS
NB | Liner Thk. mm (min.) | Temperature Test as per 6.1.1 no. of Cycles: 3 | Steam Cold water Cycling Test as per 6.1.2 No. of Cycles : 100 | Vacuum Test as per 6.1.3 Duration: 48 hrs. | ||||
Max Temp. Deg.C | Hydro Test at 400 psi. | Steam Pressure psi | Hydro Test at 400 psi | Vacuum (mm) | Max. Temp. Deg. C | Hydro test at 400 psi. | ||
25 | 3.0 | 260 | O.K. | 125 +/-5 | O.K. | 740 | 140 | O.K. |
80 | 3.5 | 260 | O.K. | 125 +/-5 | O.K. | 740 | 160 | O.K. |
100 | 3.7 | 260 | O.K. | 125 +/-5 | O.K. | 740 | 160 | O.K. |
150 | 3.8 | 260 | O.K. | 125 +/-5 | O.K. | 400 | 140 | O.K. |
200 | 4.1 | 260 | O.K. | 125 +/-5 | O.K. | 300 | 140 | O.K. |
250 | 4.1 | 260 | O.K. | 125 +/-5 | O.K. | 250 | 120 | O.K. |
300 | 4.1 | 260 | O.K. | 125 +/-5 | O.K. | 200 | 120 | O.K. |