American Cast Iron Pipe Co.'s new 48-in. Flex-Ring~® restrained-joint ductile-iron pipe uses the sealing features of our Fastite~® joint and a boltless restrained connection, providing flexible restraint against endwise separation from thrust. Easy and very quick to assemble, the joint is designed for a working pressure up to 250 psi. Flex-Ring also lends itself perfectly to installations using horizontaldirectional drilling.
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