UPVC Rubber Ring Joint Reduced Flange for Water

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A UPVC rubber ring joint reduced flange with a rubber ring socket on one end and a reducing flange on the other. Used for transition connections between rubber ring piping and flanged valves or equipment of different diameters.
  • Diameter Range: 63-400mm(承口与法兰口径不同)
  • Pressure Rating: PN10, PN16
  • Applicable Standards: GB/T 10002.2, ISO 1452-3
  • Stock Availability: In stock
  • Sample Policy: Free sample available
  • Lead Time: 5–30 days

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UPVC Rubber Ring Joint Reduced Flange for Water

Key Features

  • Socket + reducing flange: socket end connects to rubber ring piping; flange end provides reduced connection.
  • Integrated design: eliminates need for separate reducer and flange adapter.
  • Rubber ring seal: quick socket installation without solvent cement.
  • Tapered flow path: smooth reducing transition minimizes pressure loss.

Manufacturing Process

Injection molded from UPVC. Socket end has machined rubber ring groove. Uniform wall thickness in reducing section; flat flange face with bolt holes per standards.

Critical Process Parameters

  • Socket rubber ring groove dimensional accuracy.
  • Flange face flatness and perpendicularity.
  • Streamlined reducing section with uniform wall thickness.
  • Bolt circle and hole diameter conform to standards.

Raw Material Characteristics

  • Material Composition: UPVC; sealing ring: EPDM. Flange ring can be UPVC, PP, or metal.
  • Material Properties: Consistent with series.

Typical Applications

  • Connection between rubber ring piping and smaller flanged valves.
  • Reducing flanged connections at pump station inlets/outlets.
  • Size transition at water treatment equipment interfaces.

Application Scenarios

  • Transition connections between rubber ring piping and flanged equipment of different diameters.
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