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UPVC One Piece Flange

An integral flange molded in one piece for fixed connections between piping and flanged equipment.

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Product Overview

UPVC one piece flange molded in one piece for fixed flanged connections. Manufactured from virgin PVC-U compound per GB/T 10002.2 and ISO 1452, this UPVC one piece flange forms a permanent flanged joint without a separate stub end, simplifying installation. Available in DN 50 - 400 mm with PN6 - PN16 ratings.

Quick Information

  • Type: One Piece Flange
  • Material: PVC-U / PVC-C
  • Size: DN 50 - 400 mm
  • Pressure Rating: PN6 - PN16
  • Connection: Flanged
  • Standard: GB/T 10002.2 / ISO 1452
  • Stock: In stock

Specification Table

Size DN Dimensions (mm) Number of bolt hole n Nominal Pressure

PN(kg/cm²)

D0 D1 d0 d1 d2 d3 da T H L
15 95.00 65.00 26.80 20.30 19.95 16.00 14.00 16.20 12.40 20.20 4 PN16
20 105.00 75.00 32.50 25.30 24.95 21.00 14.00 18.70 13.50 22.70 4 PN16
25 115.00 85.00 40.30 32.30 31.90 28.00 14.00 22.20 15.00 26.20 4 PN16
32 140.00 100.00 49.30 40.35 39.90 36.00 18.00 26.20 14.40 31.20 4 PN16
40 150.00 110.00 61.60 50.35 49.90 46.00 18.00 31.20 15.50 36.20 4 PN16
50 165.00 125.00 77.40 63.40 62.90 57.00 18.00 37.70 15.50 43.70 4 PN16
65 185.00 145.00 90.40 75.40 74.90 69.00 18.00 43.70 17.30 50.20 4 PN16
80 200.00 160.00 106.50 90.50 89.90 83.00 18.00 51.20 18.50 58.70 8 PN16
100 220.00 180.00 126.90 110.60 109.90 103.00 18.00 61.20 20.30 68.70 8 PN16
De125 250.00 210.00 144.00 125.70 124.90 117.00 18.00 68.70 22.00 77.20 8 PN16
125 250.00 210.00 161.30 140.75 139.90 131.50 18.00 76.20 22.20 84.70 8 PN16
150 285.00 240.00 184.30 160.80 159.90 151.00 22.00 86.20 25.00 95.70 8 PN16
De180 285.00 240.00 202.60 180.80 179.90 166.00 22.00 97.00 25.50 115.00 8 PN10
De200 340.00 295.00 227.00 201.00 199.90 190.00 22.00 106.20 26.30 116.20 8 PN10
200 340.00 295.00 254.10 226.20 224.90 216.00 22.00 119.10 27.00 129.70 8 PN10
De250 395.00 350.00 281.30 251.30 249.90 239.50 22.00 131.65 28.00 142.20 12 PN10
250 405.00 350.00 310.40 281.20 279.90 264.00 22.00 147.00 29.00 169.00 12 PN10
300 445.00 400.00 354.60 316.70 314.90 302.00 22.00 167.70 31.50 179.70 12 PN10

Key Features

  • One-Piece Molded Flange: The UPVC one piece flange eliminates the separate stub end, simplifying installation and cutting part count.
  • Machined Sealing Face: The flange face of every UPVC one piece flange is machined flat for uniform gasket compression.
  • Chemical Resistance: The UPVC one piece flange withstands acids, alkalis and industrial chemicals without corrosion.
  • Lightweight Installation: Far lighter than steel flanges, the UPVC one piece flange reduces handling and installation cost.
  • PN6 - PN16 Rated: The UPVC one piece flange matches common PVC-U pipe pressure classes from DN 50 to 400 mm.
  • Long Service Life: Non-rusting, non-scaling UPVC one piece flange material delivers decades of reliable flanged service.

Production

Raw Material

Each UPVC one piece flange is injection molded from virgin PVC-U compound with precision tooling per GB/T 10002.2 and ISO 1452.

Molding Process

The UPVC one piece flange is injection molded as a single piece with flange face and pipe socket formed in one cycle, then CNC machined for flat gasket seat.

Quality Control

Every UPVC one piece flange is inspected for face flatness, bolt circle diameter and socket alignment to guarantee leak-free assembly.

Applications

  • Valve and pump connections use the UPVC one piece flange for fixed flanged joints in industrial lines.
  • Chemical process plants install the UPVC one piece flange for corrosion-free flanged transitions.
  • Water treatment systems rely on the UPVC one piece flange for permanent flanged piping connections.
  • Industrial water lines choose the UPVC one piece flange where a one-piece flanged joint is preferred.
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