Non-Conductive Pipe Rollers

Non Conductive Pipe Rollers prevent the passing of current from the pipeline to bridge structure and rebars. As a direct replacement for a cast iron roll, non-conductive pipe rollers are made of the highest specification polyurethane compound which is cast around an integral steel sleeve to form a full length bearing for the axle.
They can be used in conjunction with the FRP Type # 240 Roll-On Shields™.

Advantages

• Maintain same support strength of pipe hanger system.
• Eliminate chafing and rusting pipe caused by iron rolls.
• Eliminate electrical grounding of the pipeline to the bridge.
• Eliminate insulating joints at each end of the bridge, and include the suspended line as part of the cathodically protected pipeline maintaining continuity of cathodic protection.
• Absorb vibration from traffic or other sources, saving wear and tear on pipe hanger parts.

TYPE H NON-CONDUCTIVE PIPE ROLLERS

TYPE S NON-CONDUCTIVE PIPE ROLLERS

Physical Properties List
Below are the key properties of the casting compound used in the non-conductive pipe rollers.

A roller that has cold flowed under the load placed upon it (time, temperature, and weight) will develop a flat spot and cease to roll. A bound roller will pull the whole support system out of alignment, resulting in metal fatigue and ultimately failure.