Non-Conductive Pipe Rollers – Type H

Description

Non-Conductive Pipe Rollers

Non-Conductive Pipe Roller

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.

For use with

  • Single Pipe Roll
  • Adjustable Roll Support
  • Adjustable Roll Guide
  • Adjustable Roll Hanger
  • Spring Cushion Hanger
  • Roller Chair
  • Clevis Insulator

TYPE H NON-CONDUCTIVE PIPE ROLLERS

Type H dimension drawing

Dimensions for Type H
LBA Item
Number
Model
Number
Pipe
Size
A
C D E F
NCR0200 2H 2 2 5/8 1 1/4 13/16 3/8
NCR0300 3H 3 3 3/4 1 5/8 7/8 1/2
NCR0400 4H 4 4 3/4 2 1 1/2 1/2
NCR0500 5H 5 5 13/16 2 3/8 1 1/2 5/8
NCR0600 6H 6 6 7/8 2 3/4 1 3/4 3/4
NCR0800 8H 8 8 7/8 3 1/8 2 1/8 7/8
NCR1000 10H 10 11 3 5/8 2 1/8 7/8
NCR1200 12H 12 12 1/2 4 2 1/8 1
NCR1400 14H 14 14 1/4 4 1/2 2 1/2 1 1/8
NCR1600 16H 16 16 1/4 5 2 5/8 1 1/4
NCR1800 18H 18 18 3/8 5 9/16 2 3/4 1 1/4
NCR2000 20H 20 20 1/4 5 3/4 3 1/2 1 1/4
NCR2400 24H 24 24 1/4 7 1/16 4 1/8 1 1/2
Column headings refer to drawing above.

TYPE S NON-CONDUCTIVE PIPE ROLLERS

Type S dimension drawing

For use with

  • Pipe Roller Stand
  • Adjustable Pipe Roller Stand

Dimensions for Type S
LBA Item
Number
Model
Number
Pipe
Size
A
C D E F
NCS0200 2S 2 2 5/8 2 13/16 1/2
NCS0300 3S 3 2 5/8 2 1/8 1 1/8 1/2
NCS0400 4S 4 3 3/4 2 9/16 1 1/8 1/2
NCS0500 5S 5 3 3/4 2 3/8 1 1/8 1/2
NCS0600 6S 6 3 3/4 2 1 1/8 1/2
NCS0800 8S 8 6 3 3/8 1 3/8 3/4
NCS1000 10S 10 6 3 1/8 1 5/8 3/4
NCS1200 12S 12 8 3 7/8 2 3/4 7/8
NCS1400 14S 14 9 1/8 4 2 3/4 7/8
NCS1600 16S 16 9 3 7/8 1 3/4 1 1/8
NCS1800 18S 18 9 4 1 15/16 1 1/8
NCS2000 20S 20 9 4 1 7/8 1 1/8
NCS2400 24S 24 10 4 7/16 2 1/4 1 1/4
Column headings refer to drawing above.

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.

Custom Compounded Polyether Type Polyurethane
Hardness, Shore A 98
Tensile Modulus, psi at 100% 2542
Tensile Strength, psi 6764
Elongation, percent 247
Die C Tear, pli 477
Split Tear, pli 130
Compressions Set, Method B, percent 21
Bashore Resilience, percent 39
Compression Modulus psi at 5% 500
Compression Modulus psi at 105% 850
Compression Modulus psi at 15% 1175
Compression Modulus psi at 20% 1600
Compression Modulus psi at 25% 2125

Additional information

Model

2H, 3H, 4H, 5H, 6H, 8H, 10H, 12H, 14H, 16H, 18H, 20H, 24H

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