Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of polytetrafluoro spiral gaskets in China, also supports customized service. Please feel free to buy high quality polytetrafluoro spiral gaskets for sale here from our factory.
Polytetrafluoro Spiral Gaskets
|
Color |
Black/customizable |
| Hardness | 30-90 Shore A |
|
Overall Dimensions |
Standard size |
| Temperature | -150℃～250℃ |
| Medium | This applies to virtually all liquids, gases, and chemicals |
Introduction
Polytetrafluoro spiral gaskets are PTFE retaining rings made of PTFE rods or PTFE sleeves processed by a lathe. It is resistant to various concentrations of strong acids and alkalis, oil-resistant, self-lubricating, has good insulation and has good ductility.
Polytetrafluoro spiral gaskets are a common sealing material widely used in mechanical equipment, automobiles, aerospace, and other fields. It can play a variety of roles such as waterproofing, dustproofing, sound insulation, shock absorption, and so on.
Application of polytetrafluoro spiral gaskets
1
Chemical and petrochemical industry
catalytic synthesis, heat exchangers, vessel seals, pipes, valves, and storage.
2
Nuclear industry
cooling systems, valves, manholes, handholes, and heat exchangers with or without partition walls.
3
General Industry
high and low-pressure steam systems, autoclaves, heat exchangers, heat transfer fluids, high-pressure and hydraulic piping, valves, compressors, and pumps.
4
Aviation
Mainly used on pipes or containers, with good pressure balance and sealing performance.
Structure and composition
■ Outer Ring: Made of carbon steel, this outer ring is sometimes called a centering ring or guide ring. It is used to center the gasket when you insert it into the bolted flange joint.
■ Inner ring: usually equipped with polytetrafluoroethylene as filling material. The inner ring is critical to the gasket because it prevents the winding from bending inside the pipe. When the gasket bends, part of it can be sucked into the pipe. Often, they become wrapped around rotating equipment such as pumps. The resulting chaos is known as the "Bird's Nest." Inner rings can help you avoid this problem.
■ Sealing Element: As you might have guessed from the name, the sealing element creates a seal that prevents leaks. The sealing element contains windings and filler material. Most spiral gaskets in oil and gas refineries will use high-temperature-resistant flexible graphite filler materials. Flexible graphite packing also allows the gasket to better withstand flange deformation and joint misalignment.
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