RILSON GASKET
Ningbo Rilson Sealing Material Co., Ltd is dedicated to ensuring the secure and dependable operation of fluid sealing systems, offering clients the appropriate sealing technology solutions.
Style | Product Description |
W | Winding only, without inner and outer rings. |
RW | Spiral Wound Gasket with outer ring. |
RWI | Spiral Wound Gasket with inner and outer ring. |
WI | Spiral Wound Gasket with inner ring. |
RH | Spiral Wound Gasket with Ribs for Heat Exchanger |
RS | Spiral Wound Gasket with Special Shape |
These gaskets are manufactured following International specifications such as ASME B16.20, EN 1514-2, DIN, JIS B 2404, etc.
Spiral wound gaskets — made with an alternating combination of formed metal wire and soft filler materials — form a very effective seal when compressed between two flanges. A V-shaped crown centered in the metal strip acts as a spring, giving the gaskets greater resiliency under varying conditions. Filler and wire material can be changed to accommodate different chemical compatibility requirements. If the load available to compress a gasket is limited, gasket construction and dimensions can be altered to provide an effective seal.
A spiral wound gasket may include a centering ring, an inner ring, or both. The outer centering ring accurately positions the gasket within the flange and acts as a compression limiter, while the inner ring provides additional radial strength. The inner ring also reduces flange erosion and protects the sealing element.
Resiliency and strength make spiral wound gaskets an ideal choice under a variety of conditions and applications. Widely used throughout refineries and chemical processing plants, they are also effective for power generation, aerospace, and a variety of valve and specialty applications.
Metal Material | Minimum | Maximum | Abbreviation | ||
℉ | ℃ | ℉ | ℃ | ||
304SS | -320 | -195 | 1400 | 760 | 304 |
316LSS | -150 | -100 | 1400 | 760 | 316L |
321SS | -320 | -195 | 1400 | 760 | 321 |
347SS | -320 | -195 | 1700 | 925 | 347 |
Carbon Steel | -40 | -40 | 1000 | 540 | CRS |
Alloy 20 | -300 | -185 | 1400 | 760 | A-20 |
Hastelloy B2 | -300 | -185 | 2000 | 1090 | HAST B2 |
Alloy C276 | -300 | -185 | 2000 | 1090 | HAST C276 |
Incoloy 825 | -150 | -100 | 1600 | 870 | IN 825 |
Inconel 625 | -150 | -100 | 2000 | 1090 | INC 625 |
Inconel X750 | -150 | -100 | 2000 | 1090 | INC X750 |
Monel 400 | -200 | -130 | 1500 | 820 | MON |
Nickel 200 | -320 | -195 | 1400 | 760 | Ni |
Titanium | -320 | -195 | 2000 | 1090 | Ti |
Filler Material | Minimum | Maximum | Abbreviation | ||
℉ | ℃ | ℉ | ℃ | ||
Flexible Graphite | -350 | -212 | 1000 | 550 | F.G |
Polytetrafluoroethylene | -400 | -240 | 490 | 250 | PTFE |
Mica | -328 | -200 | 1472 | 800 | MI |
Non Asbestos | -184 | -120 | 750 | 400 | NA |
Ceramic | -350 | -212 | 2000 | 1100 | CER |