The transition fitting joint uses a combination of elastomeric seals and significant interferences to ensure a leak-free design. The joint, designed to be stronger than the polyethylene pipe, exceeds pullout requirements of CSA B137.4-05. ID controlled fittings boast a smooth transition from the polyethylene inside-diameter to the steel inside-diameter. By eliminating the tubular insert stiffener, and instead using the steel pipe itself the insert stiffener, the non-obstructed inside diameter makes these fittings suitable for pigging.


The standard materials of construction are ASME A106 B for the steel portion and PE47101 for the plastic portion. Hawkeye transition fittings are designed in consideration of CSA B137.4-05 & Z662-07, ASTM D2513 & F1973, as well as API 15LE & ASME B31.8.


ID-Controlled Transition fittings are available in standard pipe sizes from 2 NPS [60.3 mm] to 16 NPS , and are available in Standard Dimension Ratios (SDR’s) of 6.3, 7.3, 9, 11 and 17. Call us for sizes larger than 16 NPS, SDR’s not listed and non-standard materials.


Plastic Adapter PE47101 (Optional PE3408)
Steel Nipple A 106B (Optional: A 333-6, CSA Gr. 290 & 359
Compression Sleeve Carbon Steel
Seals FKM (Viton)
Corrosion Protection Proprietary

Ordering Information

  1. Specify ID-Controlled Transition Fitting
  2. Specify Polyethylene Pipe Size (NPS or mm)
  3. Specify Polyethylene SDR (5, 6.3, 7.3, 9, 10, 13.5, 17, 21)
  4. Specify Polyethylene grade (PE4710 Standard)
  5. Specify Steel Pipe Size (NPS or mm)
  6. Specify Steel Wall thickness (SCH or mm)
  7. Specify Steel Grade (A 106B Standard)

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