UPVC Reduced Flange for Water

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A UPVC reduced flange with flange connections of different diameters on both ends. Used to connect two flanged pipes or equipment of different diameters, providing a reducing transition for flanged connections.
  • Diameter Range: 63-400mm(大小端法兰口径不同)
  • 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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The UPVC Reduced Flange for Water makes a reducing transition between two flanged connections of different diameters in one molded body.
UPVC Reduced Flange for Water
Coding Spec (D) Size Unit: mm
D d1 d2 d3 d4 d5 L H h n×φ n×φ
F4901 110×90 225 180 170 150 160 200 150 20.5 20.5 8×17.5 8×17.5

Key Features of UPVC Reduced Flange for Water

  • Double flange reducing: both ends are flanges of different diameters.
  • One-piece molding: reducing section and flanges are integrally molded for strength.
  • Tapered flow path: gradual transition minimizes pressure loss for this UPVC reduced flange.
  • Easy installation: standard flanged bolt connection.

Manufacturing Process of UPVC Reduced Flange for Water

Each is one-piece injection molded from UPVC. Both flange faces are flat and the reducing section keeps uniform wall thickness.

Critical Process Parameters of UPVC Reduced Flange for Water

Every is checked against these parameters:

  • Parallelism of both flange faces of this UPVC reduced flange.
  • Streamlined reducing section design.
  • Bolt hole accuracy on both flanges.

Raw Material Characteristics of UPVC Reduced Flange for Water

  • Material Composition: Unplasticized Polyvinyl Chloride (UPVC).
  • Material Properties: offers high mechanical strength, outstanding chemical resistance, suitability for cold water up to 45°C, and compliance with potable water standards.

Typical Applications of UPVC Reduced Flange for Water

  • Reducing flanged connection: connects two flanged pipes of different diameters.
  • Line size change: handles flanged main line diameter changes.
  • Equipment transition: adapts different-size flanged equipment.

Application Scenarios of UPVC Reduced Flange for Water

  • Any flanged UPVC system needing a straight reducing flange connection.
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