HD Series

HD Series: FOR Trenchless and Cased Crossings, Slip Lining, Gravel Packed Well Screens, Pump Torque Arrestor, Water Well Casing, Coal Seam Methane Casing, Pump Riser/Submersible Pump Installation, and Piling

Available in:

  • HD 30 – 30mm Bow (1.18″ Bow)
  • HD 50 – 50mm Bow (2″ Bow)
  • HD 75 – 75mm Bow (3″ Bow)
  • HD 100 – 100mm Bow (4″ Bow)

This model will centralize pipe and casing diametres of 110mm (4.33in) OD to greater than 1600mm (63in) OD.

It comes in bow heights of 30mm (1.18 in), 50mm (2 in),75mm (3 in), and 100mm (4 in).

Its unique features include a curved bow spring with superior centralizing force.

Some of the centralizing and spacing applications include, but are not limited to:

  • Carrier pipe spacers for cased crossings, (Also referred to as pipe slippers, insulators, skids, thinsulators , and pipe spiders).
  • Grade Control for wastewater and sewer pipelines
  • Gravel packed well screen.
  • Well production casing, including PVC, Steel, and Fiberglass Casing
  • Pile Centralizer.
  • Centralizers for Mine Paste Backfill Bores.
  • Torque Arrestor for Submersible Pumps.

No special tools are required to assemble the HD Series.

Outside Dia of Pipe mm
(Inches)
Number of Segments Approx Setting Guide Position
110 (4.33) 2 0
114.30 (4.50) 2 15
127.00 (5.00) 2 30
141.30 (5.563) 2 55
160 (6.30) 2 85
168.27 (6.625) 3 5
180 (7.09) 3 20
200 (7.87) 3 40
219.08 (8.625) 3 65
250 (9.84) 4 25
273.05 (10.75) 4 45
323.85 (12.75) 4 80
355.60 (14.00) 5 50
406.40 (16.00) 6 35
457.20 (18.00) 6 65
508.00 (20.00) 7 55
609.60 (24.00) 8 65
650 (25.59) 9 50
710 (27.95) 9 70
800 (31.50) 10 75
900 (35.43) 12 60
1000 (39.37) 13 65
1200 (47.24) 17 45
1400 (55.12) 20 45
1600 (62.99) 22 50

For pipe installed in the horizontal position, it is recommended that the number of bows be maximised to support maximum load per spacer.

The following formula can be used to calculate the number of segments required per spacer rounded down to the nearest whole number.

[Pipe OD in mm x 3.1428] ÷ 180 = No. of Segments

Worked example using a 710mm OD pipe:

[710 x 3.1428] ÷ 180 = 12.397 or 12 segments

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Download installation guide

Visit our downloads page to download the appropriate installation guide.

Kwikzip HD Series: Slip Lining, Trenchless and Cased Crossings, Gravel Packed Well Screens, Pump Torque Arrestor, Water Well Casing, Coal Seam Methane Casing, Piling, Pump Riser and Submersible Pump Installation.