Pipe, Conduit and Innerduct for Underground Utilities
There are a number of conduit and innerduct options available for underground utilities applications. Choosing the right pipe can provide significant savings, both in material and labor costs. Below are several types of underground and electrical conduit, with the advantages and disadvantages of each, so you can make the best choice for your application.
High density polyethylene or HDPE pipe is a strong, light weight and flexible product that can be used as conduit (duct) or innerduct. Both smooth and corrugated HDPE varieties are available. HDPE is often used in electrical, utilities and telecommunications to protect underground cables and lines from impact, environment, weather, rodents, and other corrosive conditions.
• HDPE pipe easily bends around obstacles like roadways or rivers. This allows trenchless installation of underground lines and provides a significant cost savings.
• HDPE pipes are flexible and can be bent to a minimum bending radius of 30 times the pipe's outside diameter
• HDPE pipe joints can be heat fused together to form a leak-free and extremely strong joint.
• The flexibility of HDPE pipe makes it ideal for areas that are prone to earthquakes.
• Service life of HDPE pipe can be 50+ years, keeping replacement costs low.
• HDPE pipe is corrosion, abrasion and tuberculation resistant.
• More impact resistant than PVC pipe, especially in conditions with low temperatures.
• Lower cost and lighter weight than metal pipes.
• Available in longer lengths than pvc, allowing installation of longer lines with less jointing.
• HDPE pipe is shipped on rolls that may need to be returned to the manufacturer after use.
• Ovalizing of the pipe can occur from being wrapped on the rolls.