Improving piping workability with water jet processing.
■Overview of Processing Example Product Name: Slit Gasket / Dimensions: Outer Diameter φ340 × Inner Diameter φ285 × Thickness 1.5mm, Bolt Holes φ12 × 12 Locations, PCD315 / This processing example involves the production of a slit gasket made from TOMBO No.1995 using water jet cutting. It is designed for retrofitting existing piping, allowing for installation without disassembling the piping by incorporating a slit in the gasket, which results in reduced construction time and improved maintenance. The 12 bolt holes are also processed with high precision. ■Product Features TOMBO No.1995 is a general-purpose joint sheet made from a blend of inorganic fibers and aramid fibers with oil-resistant rubber (NBR). It is suitable for fluids such as water, oil, and brine, and excels in a balance of processability, sealing performance, and flexibility. It is commonly used as gaskets for piping flanges and equipment in various industrial fields.
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basic information
■Processing Method Water jet cutting is a water pressure cutting machine that uses high-pressure water to cut materials. It processes by spraying high-pressure water. By changing the spray nozzle according to the processing material, high-quality products can be produced in a short time. Additionally, the dimensional tolerances that are significantly improved compared to conventional manual processing result in stable processing accuracy. The taper of the cutting surface from press processing can also be improved with water jet processing. ■Q&A Q: What is a slotted gasket? A: It is a product that has a slit (cut) in part of the gasket. It contributes to the efficiency of maintenance work by allowing the gasket to be replaced without disassembling existing piping. Q: Is there any issue with the sealing performance of the slotted part? A: By tightening it with the appropriate flange surface pressure, sufficient sealing performance can be ensured for the slotted part. During installation, it is recommended to keep the slotted position away from the bolt holes. Q: What is the positional accuracy of the bolt holes? A: High positional accuracy is achieved through water jet processing. Since it is processed based on CAD data, the 12 bolt holes can be arranged evenly and accurately.
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Please leave the processing of TOMBO No. 1995 gaskets to Daiko. We will manufacture custom products tailored to your installation conditions, including cut processing and bolt hole processing. We can flexibly accommodate everything from prototypes to small lots and mass production. Even without drawings, we can provide estimates based on actual items or simple sketches, so please feel free to consult with 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.'
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