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PTFE Produkty
PTFE Vystelkovane produkty


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.

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QUALITY ASSURANCE PLAN
Raw Material
Item : PTFE Lined Pipes Scope of Inspection
Description Specification Type of Inspection FPPS
I. C. S. PIPES
   (Bought Out)
ASTM A 106 GR "B"
Sch 40 Seamless quality
- Visual
- Dimensional
- Test Certificate
100%
100%
100%
II. FLANGES :
    Fix
    (Modified slip on type)
    Loose & Collar
   (Bought Out)
IS 2062, Gr-A
ANSI B16.5
ASA 150 Rating
- Visual
- Dimensional
- Test Certificate
100%
100%
100%
III. P.T.F.E. LINER
    (In house manufactured)
Specification for lining
ASTM D 1457
ASTM F 1545
- Visual
- Dimensional
- Physical Test Certificate
100%
100%
100%


Work in Process
Item : PTFE Lined Pipes Scope of Inspection
Description Specification Type of Inspection FPPS
I. FABRICATION As per FPPS Fab. Drg. - Dimensional
- Visual

100%
100%
II. LINING OF PIPES ASTM F 1545-95 - Visual
- Flare Inspection
- Dimensional
100%
100%
100%


Final Inspection
Item : PTFE Lined Pipes Scope of Inspection
Description Specification Type 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

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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 Ľ 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: -  
  a. For Forgings:   At O.D. surface after pipe code no. punch. Sub Contractor in presence of inspector
  b. For Fabricated items:  At O.D. surface off flanges as mentioned in above sr. no. 3 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)  
     
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  
     
     


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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.


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