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Pipe gasket. RTJ, Sprial, Metal Jacketed
The document explains gaskets as sealing materials placed between flanges to create static seals and prevent leakage. It outlines selection criteria, types of gaskets including non-metal, metal, and composite varieties, along with their usage, advantages, and costs. Additionally, it promotes an online course for further learning about pipe and pipe fittings.
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Pipe gasket. RTJ, Sprial, Metal Jacketed
- 1. Gasket By: Varun Patel,B.E- Mechanical, PMP® 1
- 2. Gasket • Gasket issealing material placed between connecting Flanges • create a static seal • Maintain leakage proof sealing in all operating conditions 2
- 3. Gasket Selection Criteria •Temperature • Pressure • Corrosion resistance • Types of fluid • Robustness • Availability • Cost 3
- 4. Gasket Types • Non-Metal −Rubber, Teflon, Compressed Non-asbestos Fiber (CNAF) − Soft gasket can be full face or inside bolt circle − Easily compressed with low tension bolting − Used in low pressure class flanged such as 150 or 300 Class − Normally used in low temperature services − Not used in hydrocarbon services − Cheapest and easily available 4
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- 6. Gasket Types • Metal −Also known as ring gasket or RTJ − Soft iron, Low Carbon steel, Stainless Steel, Monel, inconel − Used in high pressure class flanges, normally above 900 Class − High tension bolting required − Very robust − Most costly 6
- 7. Metallic Gasket R-Type(RTJ) 7
- 8. Gasket Types • Composite −Combination of metal and non-metal − Spiral wound, Metal Jacketed, Kamprofile − Graphite or PTFE used as filler material − Stainless steel or other exotic material can be used as winding material − Used in wide range of pressure and temperature − Careful handling required − Cost effective 8
- 9. Spiral wound Gasket •Composites of metal and non-metallic materials • Graphite or PTFE used as filler material • Stainless steel or other exotic material can be used as winding material • Most widely use type gaskets. Suitable for wide range of pressure and temperature class. 9
- 10. Spiral Wound Gasket OuterRing Inner RingWinding Material 10
- 11. Metal Jacketed Gasket •Composites of metal and non-metallic materials • Soft filler material are enclosed in outer metal sheet jacket 11
- 12. Kamm/ Cam profileGasket • Metal core with concentric grooves • Sealing layers of either graphite or PTFE • Costlier than Spiral wound but provide better blowout resistance easy to handle even in large diameters 12
- 13. What we havelearned? • Types of Gasket • Various Construction 13
- 14. To learn moreabout pipe and pipe fittings take my online course at 90% discount click on https://www.udemy.com/process-pipe-fittings-for-oil-gas- career/?couponCode=FB10 How to be an Expert in Pipe & Fittings for Oil & Gas career 14 Click hear to Enrolled Now