| GAS DISTRIBUTION PRODUCTS |
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Training
Training Module - Gas Piping Systems for EF Welders
(All Gas Companies)
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| Duration :- |
5 working hours – 10.30 am to 5.00 pm. (Technical Presentation, Practical Demonstrations, Interaction). |
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| Scope :- |
Covers the following topics in the training session: |
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| 1) |
MDPE/HDPE material Specification / Technical details: |
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MDPE/HDPE material properties / characteristics. |
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Standards / Specs. of material |
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Types of materials: PE80, PE100. |
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| 2) |
‘TRUSTLENE’ MDPE/HDPE: Pipes and fittings range, Specifications, Technical details: |
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Brief details of coiled pipes & MDPE/HDPE pipe properties, its benefits, ease of installation / maintenance, |
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Standards / Specs. - pipes & fittings range (SDR rating, diameter size etc.) PE80, PE100 materials, |
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Types of fittings (couplers, branch tees, tapping tees, reducers, elbows, end caps, Transition fittings etc. |
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| 3) |
Jointing techniques --- Electro-fusion |
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Brief details of basics of Electro-fusion techniques. |
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Fusion time, cooling time for EF Fittings, bar code significance, repeat fusion of interrupted fusion cycles, |
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Do’s & don’t for EF fitting, methodology for proper fitment of fittings. |
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| 4) |
MDPE / HDPE to Metal Jointing details. |
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Types of metal to plastic jointing threaded jointing (transition fittings) |
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| 5) |
Welding equipment, tools/tackles. |
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Details of Electro-fusion Machines – Manual and Barcode reader type. |
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Generator requirements. |
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Tools & Tackles – Scrapers, Top loading clamps, pipe holding clamps, re-rounding clamps, TT cutter hex keys, pipe cutters and accessories, squeeze tools, test caps, pipe rollers. |
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| 6) |
Pipe Laying and Trench details. |
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Unpacking of pipes, Laying of pipes. |
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Trench details, types of trench, scaffolding, bedding, backfilling, compacting. |
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Identification/Tracing tape |
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| 7) |
Pressure testing. |
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Pneumatic pressure testing methodology, do’s & don’t, pressure test equipment, tools/tackles |
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| 8) |
Repairs Maintenance Operation: "If Pipe line burst / puncture / leakages found due to any reason" |
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Quick and emergency repairs with Squeeze tools & Repair saddles. |
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| Conclude the program with Interactive question-answer-session. |
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During the above training & technical presentations, the following demonstrations are provided: |
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Electro-fusion Socket type fittings |
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Electro-fusion Saddle type fittings, online tapping technique, Trustlene TT features. |
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Fitting of EF couplers on fixed buried pipes by removing pipe stoppers & sliding the couplers. |
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Patching of small punctures with EF repair saddles / tapping tees (TT) |
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Use of squeeze tools in emergency. |
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Practical & Oral Examination -- All participants are required to make two joints – 1 Saddle type + 1 Socket type. |
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