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| Customization: | Available |
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| Material: | Stainless Steel Inner and Outer Ring |
| Application: | Flanges |
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ABOUT US
Xiamen Qishine Industry Co., Ltd. is a Chinese company founded in 2013. We are a well-established fabrication services provider for industries including Oil & Gas, Petroleum, Marine, Oilfield, Mining, and Heavy Industry, with a special focus on pipeline construction and maintenance.
Qishine is the ideal choice for EPC companies and project contractors. Our company specializes in supplying a comprehensive range of products, with particular expertise in gaskets, as well as fasteners, flanges, fittings, valves, pipes, and piping spare parts. All our products, especially our gaskets, are manufactured to high standards and are CE, TUV, and ISO certified. These products are widely used in demanding environments such as oil rigs, new nuclear power plants, chemical plants, and heavy industrial facilities.
At Qishine, we are proud to be a premium product supplier, working closely with our clients to deliver the best possible results. Our experienced team, skilled workforce, and advanced facilities enable us to ensure safe and efficient project completion while meeting deadlines and budget requirements.
Qishine remains the ideal partner for EPC companies and project contractors.
Spiral Wound Gasket,ASME B16.20 Metal Gasket for 150#, 300#, 600#,900#,1500# and 2500# flanges
Ring Joint Gasket, ASME B16.20 Metal Gasket for 150#, 300#, 600#,900#,1500# and 2500# flanges
ASME B16.20 Metal Gasket Material available: CS/304/304L/316/316L/321/347... all steel family
Spiral Wound gaskets, ASME B16.20 Metal Gasket
Flexitallic developed the spiral wound gasket technology in 1912 to address escalating temperature and pressure requirements in refinery operations. The primary purpose for this development was the increasingly severe temperatures and pressures used by U.S. refinery operators in the first half of the century.
The necessity for a gasket to have the ability to recover cannot be over emphasized. The effects of pressure and temperature fluctuations, the temperature differential across the flange face, together with bolt stress relaxation and creep, demand a gasket with adequate flexibility and recovery to maintain a seal even under these varying service conditions. The Spiral Wound Gasket is the precision engineered solution to such problems, meeting the most exacting conditions of both temperature and pressure in flanged joints and similar assemblies and against virtually every known corrosive and toxic media.The spiral wound gasket meets the most exacting conditions of both temperature and pressure in flanged joints and similar assemblies and against every known corrosive and toxic media.
ASME B16.20 which covers spiral wound gaskets requires the use of solid metal inner rings in: Pressure Class 900, nominal pipe sizes 24 and larger, Pressure Class 1500 from nominal pipe sizes 12 and larger, Pressure Class 2500 from nominal pipe sizes 4 and larger and all PTFE filled gaskets. In the same standard is also described how a spiral wound gasket should be characterized, below you will find a image on it.
| Ring & Strip Materials | ||||||
| Minimum | Maximum | GuideRing Color Code | ||||
| Material | F | C | F | C | Abberviation | |
| SS 304 | -320 | -195 | 1400 | 760 | 304 | Yellow |
| SS 316L | -150 | -100 | 1400 | 760 | 316L | Green |
| SS 347L | -150 | -100 | 1400 | 760 | 317L | Maroon |
| SS 321 | -320 | -195 | 1400 | 760 | 321 | Turquoise |
| SS347 | -320 | -195 | 1700 | 925 | 347 | Blue |
| Carbon Steel | -40 | -40 | 1000 | 540 | CRS | Silver |
| Alloy 20 | -300 | -185 | 1400 | 760 | A-20 | Black |
| Hastelloy B3 | -300 | -185 | 2000 | 1090 | HASTB | Brown |
| Hastelloy C276 | -300 | -185 | 2000 | 1090 | HASTC | Belge |
| Incoloy 800 | -150 | -100 | 1600 | 870 | IN 800 | White |
| Incoloy 825 | -150 | -100 | 1600 | 870 | IN 825 | White |
| Inconel 600 | -150 | -100 | 2000 | 1090 | INC 600 | Gold |
| Inconel 625 | -150 | -100 | 2000 | 1090 | INCO 625 | Gold |
| Inconel X750 | -150 | -100 | 2000 | 1090 | INX | No Color |
| Monel 400 | -200 | -130 | 1500 | 820 | MON | Orange |
| Nickel 200 | -320 | -195 | 1400 | 760 | NI | Red |
| Titanium | -320 | -195 | 2000 | 1090 | TI | Puple |
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