QUALITY ASSURANCE
The long term success of any company is determined by the durability of its product. At Fluoropolymer our mission is to provide quality solutions that enable continuos cost-effectiveness and improvements. Our stringent quality checks are in keeping with ISO regulations. Our goal is to provide you with products you can rely on to fulfill your project and maintenance requirements.
QUALITY ASSURANCE PROCEDURE
PIPES
For pipes spools, elbows, reducers, tees etc.
1. Purchased from reputed suppliers.
2. Dimensional check
3. Verification of Test Certificates from suppliers
4. Random testing of samples at reputed laboratories
FLANGES
1. Purchase of flanges from reputed suppliers.
2. Dimensional Check
3. Random testing of material at reputed laboratories.
FORGING OF ELBOWS AND REDUCERS
1. Identification (Stamp transfer when applicable)
2. Dimensional Check
3. Heat Treatment (Stress relieving)
4. Random testing for hardness
WELDING / FABRICATION
1. Welder Qualification
2. Dimensional Check
3. Visual Inspection
LINER
1. Visual Inspection
2. Tensile Strength
3. Elongation
4. Specific Gravity
LINED PIPES AND FITTINGS
1. Visual
2. Dimensional
3. Spark Test at 10KV
4. Hydraulic Test at 429 psi.
QUALITY ASSURANCE PLAN | ||||||||||||||||||||
| ||||||||||||||||||||
Work in Process | ||||||||||||||||
| ||||||||||||||||
Final Inspection | ||||||||||||||||||||||||
| ||||||||||||||||||||||||
Note * = Hydro Test or Spark Test as per ASTM F 1545-95
IDENTIFICATION TO SUB CONTRACTOR
IDENTIFICATION AND TRACEABILITY SYSTEM
I – Circles / Flanges / Other Machined Items | Action By | |||||||
| 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 of 4 digits for set no. (for stock items i.e. when set no. is not available) | |||||||
| 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 | |||||
QUALIFICATION TEST AS PER ASTM F- 423-82 FOR PTFE LINED PIPES AND FITTINGS
CONTRACT NO.: 66- 0031 / 0032 700 GACL
Following Tests were carried out and witnessed by UHDE India Ltd.
1) PTFE LINED PIPES: 2 NOS. EACH
2) PTFE LINED ELBOWS: 2 NOS. EACH
3) 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. |
