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Spiral Wound Gaskets Custom

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Spiral Wound Gaskets

Available in several standard shapes 
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.

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Product Details

Spiral Wound Gaskets 

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.  

 

Common Metal Used 
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

Common Filler Used 
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

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About Us
Ningbo Rilson Sealing Material Co., Ltd.
Ningbo Rilson Sealing Material Co., Ltd. was founded in 2007, is a professional Spiral Wound Gaskets manufacturer and Spiral Wound Gaskets supplier and located in Ningbo, Zhejiang Province. The manufacturing facility spans across 20,000 square meters and is dedicated to ensuring the secure and dependable operation of fluid sealing systems, offering clients the appropriate sealing technology solutions. We operate numerous production lines for sealing products, specializing in the design and manufacture of sealing gaskets and other sealing materials for the petroleum, chemical, power, shipbuilding, and machinery manufacturing sectors. Our primary products consist of spiral wound gaskets, ring joint gaskets, kammprofile gaskets, corrugated metal gaskets, insulation kit gaskets, and Non-asbestos gaskets, among others.
Our clientele hails from various parts of the globe, and through our extensive experience in the industry, we have earned the trust and recognition of our customers. Presently, we have obtained certifications from several prominent companies. Additionally, we have successfully achieved ISO9001:2015 quality management system certification, as well as the API 6A certificate, among others.
As a professional Spiral Wound Gaskets factory, The company is dedicated to delivering value to customers, promoting health and happiness among workers, and producing positive social effects. We uphold the core principles of integrity, precision, innovation, and mutual success. With the aspiration of becoming the preferred brand in industrial gaskets, we are committed to establishing ourselves as a top-tier player in the fluid sealing industry and working towards the objective of ensuring mutual satisfaction among customers and employees.
Certificate Of Honor
  • Api Certificates
  • ISO9001
  • ISO14001
  • ISO45001
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Spiral Wound Gaskets Industry knowledge

In a complex and ever-changing industrial environment, the reliability of the fluid sealing system is a key factor in ensuring the safe operation of equipment and improving production efficiency. Ningbo Rilson Sealing Material Co., Ltd. , provides efficient and reliable sealing solutions for industries such as petroleum, chemical, electric power, shipbuilding and machinery manufacturing with its excellent spiral wound gasket technology.
One of the biggest highlights of spiral wound gaskets is their excellent resilience. This gasket is made of metal strips and non-metallic strips wound together, forming a unique structure that allows the gasket to quickly return to its original shape after being subjected to pressure, thereby maintaining a stable sealing effect. This feature is particularly important under dynamic conditions and can effectively cope with the effects of equipment vibration, thermal expansion and contraction on sealing performance.
The spiral wound gaskets produced by Ningbo Ruisheng Sealing Materials Co., Ltd. have been carefully designed and rigorously tested and have excellent temperature and pressure resistance. Whether it is an extreme environment of high temperature and high pressure, or a special condition of low temperature and low pressure, spiral wound gaskets can maintain stable sealing performance to ensure the safe operation of the fluid system. This performance is achieved thanks to the high-quality materials and advanced production processes selected by the company.
The design of the spiral wound gasket makes it widely adaptable and can be applied to flange sealing surfaces of various shapes and sizes. In addition, the company also provides customized spiral wound gasket solutions according to the specific needs of customers to meet the sealing requirements under different working conditions. This flexibility has made spiral wound gaskets widely used in many industries and won wide acclaim from customers.
The sealing mechanism of the spiral wound gasket is unique and effective. When the gasket is compressed between the flanges, the metal belt inside it provides a certain support force, while the non-metallic belt is responsible for filling the tiny gap between the flanges to form a tight sealing layer. This combination not only improves the sealing performance of the gasket, but also extends its service life. At the same time, this sealing mechanism of the spiral wound gasket also has a certain self-tightness, which can automatically adjust the sealing pressure within a certain range to adapt to changes in working conditions.
The spiral wound gaskets produced by Ningbo Ruisheng Sealing Materials Co., Ltd. have set an industry benchmark in the field of sealing materials with their excellent resilience, excellent temperature and pressure resistance, wide adaptability, unique sealing mechanism, environmental protection and safety. The company will continue to be committed to the research and development and innovation of spiral wound gasket technology to provide global customers with more high-quality and reliable sealing solutions.