Spiral Wound Gasket
Spiral Wound Gasket produced by pre-loaded profiled corrugated metal strip and non-metallic strip with alternating overlapping. According to requirements of work circumstances, this kind of gaskets can add the reinforced rings. Because of it has multi-sealing, it has specific advantages of high-temperature and corrosion resistance, it also can play best sealing role although with roughness sealing surface of flange.
Spiral Wound Gasket is widely used in the areas of Nuclear Plants, Aviation, Petrochemical, Valves and so on.
Application Medias: Steam, Hydrogen, Nature Gas, Pyrolysis Gas, Oil Products, Acid, Alkali, Saline Solution and so on.
Introduction:
1. With better compressibility and recovery;
2. With plastic property, it can adapt to the sealing surface with concave and convex to fill the gap of sealing surface and ensure to keep the better sealing performance under the environment with fluctuation temperature and pressure.
3. With better mechanical property of tensile strength and stretch rate.
4. With excellent performance of corrosion resistance, it can't break in some extreme medium; It won't generate large expansion and shrink.
5. It won't be softening under the condition with high temperature; It won't be harden shrink under the condition with low temperature.
6. With the advantage of enough strength, it won't be broken under the condition with heavy load; It won't be blown out under the condition with high pressure.
Sturctures:
TSA Style Basic construction type
It consists of metal strip and filling materials, Suitable for tongue and groove, male and female or flat face and recess flanges
TSB Style With inner ring type
It fitted with the metal inner ring on the basis of basic construction type to become the block of pressure; Meanwhile, it fills the blank of side of flange and the gap of inside sealing side. This design can protect accumulate the solid, reduce the impact of liquid, minimize the erosion of sealing surface. They are suitable for using on male and female flanges.
TSC Style With outer ring type
It fitted the outer ring, which enables the gaskets in the middle of flange, to provide additional resistance to prevent gaskets burst.
TSD Style With inner and outer ring type
It fitted with inner ring on the basis of with outer ring type as the internal compression point, at the same time, it becomes resistance of heat and corrosion to protect the sealing surface of gaskets and prevent the flange from corrosion. This type of gasket is applied to flat and raised face flange; Especially suitable for use under the condition with high temperature.
| PN2.0MPa(class150) | PN5.0MPa(class300) | PN11.0MPa(class600) | T | T1 |
| NPS ( inch) | DN | D1 | D2 | D3 | D4 | D1 | D2 | D3 | D4 | D1 | D2 | D3 | D4 |
| 1/2" | 15 | 14.2 | 19.1 | 31.8 | 46.5 | 14.2 | 19.1 | 31.8 | 52.5 | 14.2 | 19.1 | 31.8 | 52.5 | 4.5 | 3 |
| 3/4" | 20 | 20.6 | 25.4 | 39.6 | 56 | 20.6 | 25.4 | 39.6 | 66.5 | 20.6 | 25.4 | 39.6 | 66.5 |
| 1" | 25 | 26.9 | 31.8 | 47.8 | 65.5 | 26.9 | 31.8 | 47.8 | 73 | 26.9 | 31.8 | 47.8 | 73 |
| 1-1/4" | 32 | 38.1 | 47.8 | 60.5 | 75 | 38.1 | 47.8 | 60.5 | 82.5 | 38.1 | 47.8 | 60.5 | 82.5 |
| 1-1/2" | 40 | 44.5 | 54.1 | 69.9 | 84.5 | 44.5 | 54.1 | 69.9 | 94.5 | 44.5 | 54.1 | 69.9 | 94.5 |
| 2" | 50 | 55.6 | 69.9 | 85.9 | 104.5 | 55.6 | 69.9 | 85.9 | 111 | 55.6 | 69.9 | 85.9 | 111 |
| 2-1/2" | 65 | 66.5 | 82.6 | 98.6 | 123.5 | 66.5 | 82.6 | 98.6 | 129 | 66.5 | 82.6 | 98.6 | 129 |
| 3" | 80 | 81 | 101.6 | 120.7 | 136.5 | 81 | 101.6 | 120.7 | 148.5 | 81 | 101.6 | 120.7 | 148.5 |
| 4" | 100 | 106.4 | 127 | 149.4 | 174.5 | 106.4 | 127 | 149.4 | 180 | 106.4 | 120.7 | 149.4 | 192 |
| 5" | 125 | 131.8 | 155.7 | 177.8 | 196 | 131.8 | 155.7 | 177.8 | 215 | 131.8 | 147.6 | 177.8 | 240 |
| 6" | 150 | 157.2 | 182.6 | 209.6 | 221.5 | 157.2 | 182.6 | 209.6 | 250 | 157.2 | 174.8 | 209.6 | 265 |
| 8" | 200 | 215.9 | 233.4 | 263.7 | 278.5 | 215.9 | 233.4 | 263.7 | 306 | 209.6 | 225.6 | 263.7 | 319 |
| 10" | 250 | 268.2 | 287.3 | 317.5 | 338 | 268.2 | 287.3 | 317.5 | 360.5 | 260.4 | 274.6 | 317.5 | 399 |
| 12" | 300 | 317.5 | 339.9 | 374.7 | 408 | 317.5 | 339.9 | 374.7 | 421 | 317.5 | 327.2 | 374.7 | 456 |
| 14" | 350 | 349.3 | 371.6 | 406.4 | 449 | 349.3 | 371.6 | 406.4 | 484.5 | 349.3 | 362 | 406.4 | 491 |
| 16" | 400 | 400.1 | 422.4 | 463.6 | 513 | 400.1 | 422.4 | 463.6 | 538.5 | 400.1 | 412.8 | 463.6 | 564 |
| 18 | 450 | 449.3 | 474.7 | 527.1 | 548 | 449.3 | 474.7 | 527.1 | 595.5 | 449.3 | 469.9 | 527.1 | 612 |
| 20 | 500 | 500.1 | 525.5 | 577.9 | 605 | 500.1 | 525.5 | 577.9 | 653 | 500.1 | 520.7 | 577.9 | 682 |
| 22 | 550 | 552.5 | 577.9 | 635 | 659 | 552.5 | 577.9 | 635 | 704 | 552.5 | 577.9 | 635 | 733 |
| 24 | 600 | 603.3 | 628.7 | 685.8 | 716.5 | 603.3 | 628.7 | 685.8 | 774 | 603.3 | 628.7 | 685.8 | 790 |
Ningbo Tiansheng Sealing Packing Co., Ltd. is an acknowledged leader in researching, developing and supplying High-Tech Gaskets, Gland Packing, sealing materials and related services for the industries both in domestic and overseas.
Since Tiansheng was founded in 1993, it advocated internationalization and started supplying sealing gaskets and sealing materials mainly in fields of Nuclear Power industry, petrochemical, oil refinery, shipbuilding, mechanical, marine, and aviation. There are total 150 employees, 5 senior engineers. We obtained high reputation through insist on supplying innovative design, strict quality control, competitive prices and reliable services for our clients in the various fields. In 1998, we got the Management System Certificate of DNV ISO 9001: 2000, ISO14001: 2004, and OHSA18001. We always implement our principle of QUALITY FIRST, SUSTAINABLE DEVELOPMENT and devote ourselves to sealing technology for the sake of successfully solve more complicated and challenging leakage problems.
The main products are Nuclear PRV C-ring, Metal O-ring, Ring Joint Gaskets, Spiral Wound Gaskets, Reinforced Graphite Gaskets, Kamprofile Gaskets, Double Metal Jacketed Gaskets, Heat Exchange Gasket, Non-asbestos Gasket, Asbestos Gaskets, Expanded PTFE Gasket Sheet, PTFE Joint Sealing, Zero Leakage Valve Stem Packing, and Gland packing.
Tiansheng has a professional and dynamic work team which with rich experiences and capabilities to solve complicated leakage problem in the most cost effective way. They are supported by comprehensive engineering, manufacturing and test facilities in our National Standard Gaskets and Gland Packing Laboratory.
Nowadays, Tiansheng becomes the example in the sealing technology, especially our SELEX gaskets which are used in the Nuclear Industry and Zero Leakage Packing Ring passed ISO15848-1 and API 622. We persist in supply superior quality sealing products and services and researching and developing more economic, environment protection and excellent sealing performance gaskets for our clients forever.
