Product Range
Socket Fusion Fittings Butt Fusion Fittings
Saddles - Socket Outlet Fabricated Fitting Specifications
Special Fabrications Mechanical Fittings
ABS Fittings


Butt Fusion Fittings:
90° Elbow (Molded)
Tee (Molded)
45° Elbow (Molded)
End Cap (Molded)
Reducer (Molded)
Long Reducer (Molded)
Stub Ends (Molded)
Flange Adapter (Molded)
Backup Flanges - Ductile Iron
Transition Fittings - Full Bore

Butt Fusion Procedure

General Information
Sizing:
Nominal Size IPS OD DIPS OD CTS OD
½" .0840" --- 0.625"
¾" 1.050" --- 0.875"
1" 1.315" --- 1.125"
1-¼" 1.660" --- 1.375"
1-½" 1.900" --- 1.625"
2" 2.375" --- 2.125"
3" 3.500" 3.96" ---
4" 4.500" 4.80" ---
6" 6.625" 6.90" ---
8" 8.625" 9.05" ---
10" 10.750" 11.10" ---
12" 12.750" 13.20" ---
14" 14.00" 15.30" ---
16" 16.00" 17.40" ---
18" 18.00" 19.50" ---
20" 20.00" 21.60" ---

  • The relationship between dimension ratio, hydrostatic design stress and hydrostatic pressure is as follows for OD sized fittings and pipe:
    P =  2S

    (D0/t)-1

    S = Hydrostatic Design Stress
    P = Pressure Rating
    D0 = Average Outside Diameter
    t = Minimum wall thickness
    D0/t = Dimension Ratio
  • Except where noted in the catalogue, Molded Fittings are fully pressure rated.
  • Socket Fusion Fittings Series 160.
  • Butt Fusion Fittings are normally supplied to match the pipe in the system: DR11 Pipe = DR11 Fittings.
  • Flange Adapters and Stub Ends - full pressure rating.
  • Reducers (Molded) full pressure rating.
  • Fabricated Fittings such as Tees, Wyes and Elbows are normally de-rated to approximately 75% of the pressure rating of the pipe that they are made from.
  • Butt Fusion Molded Fittings are available in SDR5 - SDR32.5.
  • Butt Fusion Fabricated from a Socket Fusion Fitting are available in SDR11 and SDR17.
  • Not all Fittings are available in DR5 or DR7. Check with factory.
  • Note: Special sizes are available. (i.e. 8"IPS x 200mm) If you have a special requirement, check with factory for availability.


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Rahn Plastics Inc.
54 Ferris Dr.
North Bay, Ontario Canada 

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