Colonial TelTek
Colonial TelTek
201 W. Church Road
King of Prussia, PA 19406
Phone: (855) 686-7713
Email: Info@colonialteltek.com
Website: www.knobsource.com
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The interference joint system consists of an integral bell and spigot. The spigot end has a buttress type, male thread for easy installation. The belled end contains the mating female threads. The tapered buttress threads make it easy to join while giving it a high pull out strength of 1,000 lbs. The joint is concrete tight but not water tight.
Interference Joint Iron Pipe Sizes (IPS) Straight Conduits
Unit of Measure
1 

Part #

Item Name

Nominal Size

Average Outside Diameter

Inside Diameter [Min]

Nominal Wall Thickness

50C-SW-10-I N/A 5 Inch (in) Nominal Size and 10 ft Length Standard Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 5 in N/A N/A N/A
40C-SW-10-I N/A 4 Inch (in) Nominal Size and 10 ft Length Standard Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 4 in N/A N/A N/A
40C-SW-20-I N/A 4 Inch (in) Nominal Size and 20 ft Length Standard Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 4 in102 mm N/A 4.460 in113 mm N/A 4.320 in110 mm N/A 0.070 in2 mm
50C-MW-20-I N/A 5 Inch (in) Nominal Size and 20 ft Length Medium Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 5 in127 mm N/A 5.572 in142 mm N/A 5.380 in137 mm N/A 0.070 in2 mm
50C-SW-20-I N/A 5 Inch (in) Nominal Size and 20 ft Length Standard Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 5 in127 mm N/A 5.520 in140 mm N/A 5.380 in137 mm N/A 0.070 in2 mm
20C-SW-20-I N/A 2 Inch (in) Nominal Size and 20 ft Length Standard Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 2 in51 mm N/A 2.37 in60 mm N/A 2.235 in57 mm N/A 0.070 in2 mm
60C-HW-10-I N/A 6 Inch (in) Nominal Size and 10 ft Length Heavy Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 6 in N/A N/A N/A
40C-HW-10-I N/A 4 Inch (in) Nominal Size and 10 ft Length Heavy Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 4 in N/A N/A N/A
40C-HW-20-I N/A 4 Inch (in) Nominal Size and 20 ft Length Heavy Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 4 in102 mm N/A 4.51 in115 mm N/A 4.320 in110 mm N/A 0.070 in2 mm
60A-SW-20-I N/A 6 Inch (in) Nominal Size and 20 ft Length Standard Wall Iron Pipe Size (IPS) Belowground Straight Conduit with Interference Joint N/A 6 in152 mm N/A 6.575 in167 mm N/A 6.435 in163 mm N/A 0.070 in2 mm
30C-SW-20-I N/A 3 Inch (in) Nominal Size and 20 ft Length Standard Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 3 in76 mm N/A 3.500 in89 mm N/A 3.360 in85 mm N/A 0.070 in2 mm
20C-SW-10-I N/A 2 Inch (in) Nominal Size and 10 ft Length Standard Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 2 in N/A N/A N/A
50A-SW-20-I N/A 5 Inch (in) Nominal Size and 20 ft Length Standard Wall Iron Pipe Size (IPS) Belowground Straight Conduit with Interference Joint N/A 5 in127 mm N/A 5.520 in140 mm N/A 5.380 in137 mm N/A 0.070 in2 mm
30C-SW-10-I N/A 3 Inch (in) Nominal Size and 10 ft Length Standard Wall Iron Pipe Size (IPS) Aboveground Straight Conduit with Interference Joint N/A 3 in N/A N/A N/A
60A-MW-10-I N/A 6 Inch (in) Nominal Size and 10 ft Length Medium Wall Iron Pipe Size (IPS) Belowground Straight Conduit with Interference Joint N/A 6 in N/A N/A N/A
Unit of Measure
1