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  6. Ductile cast iron ball-shaped flexible expansion joint "Flex Bender with PE inlet"

Ductile cast iron ball-shaped flexible expansion joint "Flex Bender with PE inlet"

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last updated:Feb 06, 2026

水研
水研
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The "Flexi Bender with PE Inlet," featuring an excellent seismic isolation joint ideal for earthquake-resistant piping, has arrived!

**Features** ■Direct connection with PE pipes: The flexible bender body is equipped with an insertion port for polyethylene pipes (PE pipes). Additionally, it can be integrated with polyethylene pipes using EF joints, enhancing the integrity and durability of the piping. ■Excellent flexibility: The ball joint section is designed to rotate and bend 360°, absorbing twists, eccentricities, and local displacements in the piping. This mitigates the impact on the piping caused by ground movement and earthquakes, making it effective for seismic piping. ■High water tightness and durability: The boltless, simple integrated structure provides high water tightness and durability. Even in the integrated sections with PE pipes, the design minimizes the risk of disconnection or leakage under harsh conditions. ■Various combinations possible: It can be combined with various connection types of ductile iron pipes, including the GX type, allowing for connections between different types of piping. *For more details, please refer to the catalog or feel free to contact us.*

    Piping and insulationFittingsWater supply facilities
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Ductile cast iron ball-shaped flexible expansion joint "Flex Bender with PE inlet"

NFB-PP.jpg
NFB-PP.jpg
  • Related Link - https://www.suiken.jp/category/fej/
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【Specifications】 ■Nominal Diameter ・75mm to 200mm ■Eccentricity ・100mm/200mm/300mm/400mm (can be increased in 100mm increments thereafter.) ■Connection Type (for different pipe types) ・GX type (socket and spigot) / flange / K type (socket and spigot) / polyethylene spigot / *For more details, please refer to the catalog or feel free to contact us.

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Ductile cast iron ball-shaped flexible expansion pipe "Flex Bender"

Ductile cast iron ball-shaped flexible expansion pipe "Flex Bender"

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水研

水研

Building materials, supplies and fixtures manufacturers

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Since our establishment in 1970, we have been a manufacturer of special fittings dedicated to protecting lifelines, introducing numerous innovative products to the market. The ductile iron ball-shaped flexible expansion joint "Flexibender," released in 1980, demonstrated its seismic performance during the Great Hanshin-Awaji Earthquake and the Great East Japan Earthquake. The EM continuous water supply method "S-Gate" series, launched in 1999, has steadily achieved results in various countries around the world, including the United States and South Korea. We are committed to product development with free thinking, unconstrained by conventional wisdom, and contributing to the safety of lifelines.

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