Sioux Chief 558 Series CTS Pipe Eye Insulator

Sioux Chief 558 Series CTS Pipe Eye Insulator

The Sioux Chief 558 Series CTS Pipe Eye Insulator is a rough-in support accessory that seats inside a pipe hanger eye so copper tube running through the hanger never makes direct metal-to-metal contact with the hanger body. The series is available across a CTS (copper tube size) range spanning 1/2" - 3/4" CTS up to 1" CTS, plus a 1" CTS - Flame Retardant & Glueable option for jobs requiring that added rating. That separation cushions the tube at its support point and keeps rigid hanger contact from wearing against the pipe wall as the line moves through normal thermal expansion and contraction behind a wall or under a floor. Plumbers install one insulator at every hanger eye along a copper run, so a single CTS branch or riser line may pass through several insulators between its origin and termination point. The series is manufactured in the United States and ships 250 per case, a case pack sized for plumbing contractors and distributors who stock rough-in hanger accessories in volume rather than one piece at a time.

Key Features

• Trade Size Range: Covers CTS (copper tube size) piping from 1/2" - 3/4" CTS through 1" CTS, matching common copper rough-in branch and riser lines.
• Flame Retardant & Glueable Option: A 1" CTS - Flame Retardant & Glueable version is available within the series for applications calling for that added rating.
• Pipe Eye Insulator Design: Fits inside a pipe hanger eye to separate the tubing from the metal hanger body, preventing direct pipe-to-hanger contact at the support point.
• Point-of-Support Isolation: Placed at each hanger or strap location along a copper run, keeping the tube from bearing directly against the hanger eye at every support point.
• Rough-In Application: Intended for wherever a hanger or strap supports a run of CTS copper tube, whether in a wall cavity, ceiling space, or under-floor joist bay.
• Country of Origin: Manufactured in the United States.
• Packaging: Supplied 250 per case, a quantity sized for contractors and distributors stocking hanger accessories at volume rather than buying single pieces on a job-by-job basis.

Technical Specifications

• Series: 558
• Trade Size Options: 1/2" - 3/4" CTS, 1" CTS, 1" CTS - Flame Retardant & Glueable
• Country of Origin: United States
• Packaging: 250 EA per case

Typical Applications

• Copper Rough-In Supply and Branch Lines
• Pipe Hanger and Strap Support Points
• Residential and Commercial Rough-In Plumbing
• New Construction and Renovation Plumbing Rough-In
• Wall Cavity, Ceiling, and Under-Floor Copper Runs

Why Sioux Chief?

Sioux Chief manufactures the 558 series pipe eye insulator in the United States across its full CTS trade size range, giving plumbing contractors a consistent hanger accessory whether the run calls for 1/2" - 3/4" CTS, 1" CTS, or the 1" CTS - Flame Retardant & Glueable option. Packaged 250 per case, the series is sized for distributors and installers stocking rough-in supports at volume rather than piece by piece, helping keep CTS copper lines isolated from the hanger body at every support point along the run. A consistent, purpose-built insulator at each hanger eye is a small detail that supports a cleaner, longer-lasting rough-in across the series.