Processing example of PTFE water service gaskets | Press processing for 150A flanges
■Overview of Processing Example Product Name: PTFE Gasket for Water Supply Dimensions: 3t Water Supply 150A FF Material: PTFE Processing Method: Press Processing This processing example involves the production of a PTFE gasket used for the flange part of water supply equipment. The product features a full-face shape compatible with a 150A flange, with bolt holes arranged evenly. Since it is used for water supply applications, PTFE, which has low impurity leaching and excellent chemical resistance, is employed as the material. As this was a project intended for mass production, press processing was selected to achieve both dimensional reproducibility and processing efficiency. As a result, stable dimensional accuracy is ensured while minimizing positional misalignment during assembly, achieving reliable sealing performance.
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■Product Features (Material: PTFE) PTFE (polytetrafluoroethylene) is a high-performance material with exceptional heat and chemical resistance. It withstands almost all acids, alkalis, and solvents, and has minimal leaching of impurities, making it widely used in industries that require contamination-free environments, such as food, pharmaceuticals, and chemical plants. It also possesses non-stick and insulating properties, making it a highly reliable resin that maintains stable performance even in harsh conditions. ■Processing Method (Press Processing) The production of sheet gaskets using a press machine and Thomson die is an efficient processing method that balances high quality, short delivery times, and cost-effectiveness. Daiko has established a robust mass production system with large presses of 300t and 100t, as well as high-speed automatic machines. Additionally, by in-house designing and manufacturing of molds, we optimize mold selection and shorten processes, enabling us to respond promptly to urgent customer requests with a short delivery system.
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■Q&A (Frequently Asked Questions) Q1. Can PTFE gaskets be used for potable water applications? A. Yes. PTFE has low leaching of impurities and is a safe material for use in potable water systems. Q2. Are you able to accommodate sizes other than 150A? A. Yes, we can accommodate other sizes. We will propose the optimal mold design based on flange standards and dimensions. Q3. Can we discuss production in small lots? A. We can handle prototypes and small quantity orders. We will suggest processing methods based on quantity and delivery conditions. ■Daiko's Capability We provide comprehensive support from the selection of various resin and rubber materials, including PTFE, to press processing and water jet cutting. We also respond to material proposals and shape considerations based on applications and usage conditions, flexibly supporting prototypes, small lots, and custom orders. If you have any issues with gaskets for potable water or special specifications, please feel free to consult us.
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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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