I will also explain the characteristics and shapes of both the FF type and RF type!
The main difference between FF type gaskets and RF type gaskets is the shape and area of the sealing surface. Consequently, the shape of the flanges used and their suitable applications differ. FF stands for "Flat Face," which is referred to as "zenmenza" in Japanese. The gasket has a disc shape with bolt holes that covers the entire flat surface of the flange (full face gasket). Because the gasket is tightened over a large area, the pressure applied to any one part (surface pressure) is lower. RF stands for "Raised Face," which is referred to as "heimenza" in Japanese. The shape of the flange: the inner diameter side of the sealing surface is raised. Sealing occurs at this raised portion. *For more detailed information, please refer to the related links. For further inquiries, feel free to contact us.
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Company information
Daiko is a manufacturer specialized in processing various industrial products, including gaskets and packing. With industry-leading processing equipment, including one of Japan's largest water jet cutting machines, and a wide range of materials such as joint sheets, rubber, resin, and metal, we meet our customers' diverse needs. Leveraging the technology and experience we have cultivated over 50 years, we provide high-quality, short-lead-time, and low-cost products to contribute to solving our customers' challenges. To respond to our customers' varied needs, Daiko's production bases are equipped with various processing facilities. Among them, the water jet cutting machines, with a total of four installed at our Osaka headquarters and Tokyo branch, boast one of the largest scales in the country. The maximum processing range is W4,000 × L5,500 mm, allowing for the high-precision manufacturing of large-diameter gaskets and packing. By maximizing material efficiency, we achieve the provision of 'high quality at low cost.'
