Carbon Steel Coupling

250PSI Ductile Iron Low Pressure Flexible Couplings

250PSI Ductile Iron Low Pressure Flexible Couplings

250PSI Carbon steel corrosion and low pressure coupling, especially designed for low pressure pipeline system. Anti-corrosion coating material, resistan most level chemical substance (for example: fungicides, oxidizing agents, flocculating agents and softener, membrane cleaning agent).

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Categories: Carbon Steel Coupling

Sizes-Inches/DN & Rated Working Pressure

  • 3/4 inch to 5 inch (DN20 to DN125), 250PSI (18bar)
  • 6 inch to 12 inch (DN150 to DN300),200PSI (16bar)

Housings

  • hot-dip galvanizing
  • electrostatic spray
  • plating Dacromet
  • Teflon (PTFE)
  • nylon

Gaskets

Gaskets – EPDM rubber, suitable for cold water, hot water, rare acid, oil-free air and multiple chemical product (-50~150℃).It is not suitable for medium like petroleum.

Bolts & Nuts

Round-head, elliptoid-neck, carriage bolts, type carbon iron covered with zinc or dacromet.

Information

Nominal Pipe Dimensions
Size OD X Y Z Weight
inch inch inch inch inch kgs
DN DN DN DN DN lbs
1 1.315 2.402 4.252 1.772 1.84
25 33.40 61 108 45 0.538
1.25 1.660 2.677 4.606 1.772 1.228
32 42.20 68 117 45 0.558
1.5 1.900 2.913 4.803 1.772 1.367
40 48.30 74 122 45 0.621
50 2.244 3.346 5.118 1.89 1.320
57.00 85 130 48 0.600
2 2.375 3.425 5.236 1.89 1.459
50 60.30 87 133 48 0.663
2.5 2.875 3.858 5.669 1.89 1.919
65 73.00 98 144 48 0.872
65 3.000 4.01 6.906 1.89 2.077
76.10 102 150 48 0.944
3 3.500 4.488 7.008 1.89 2.385
80 88.90 114 178 48 1.084
100 4.2501 5.551 7.795 2.126 3.067
108.00 141 198 54 1.394
4 4.500 5.787 8.031 2.126 2.911
100 114.30 147 204 54 1.323
125 5.250 6.535 9.37 2.126 3.960
133.00 166 238 54 1.800
5 5.563 6.89 10.097 2.126 4.400
125 141.30 175 256 54 2.000
150 6.259 7.638 10.472 2.126 4.840
159.00 194 266 54 2.200
6 6.625 7.992 11.063 2.283 5.060
150 168.30 203 281 58 2.300
8 8.625 10.354 13.976 2.323 9.680
200 219.10 263 355 59 4.400
10 10.75 13.504 17.323 2.638 17.16
250 273 343 440 67 7.800
12 12.75 15.512 19.134 2.559 23.10
300 323.9 394 486 65 10.50