US Coupler AR1.66 Aluminum Reverse Thread SDR Duct Coupler

Description

Key Specifications & Performance 

• Conduit Compatibility: Specifically sized for 1-1/4″ SDR duct with an outside diameter (OD) range of 1.48″ to 1.70″.
• Tensile Strength: Features sharp buttress-type threads that withstand pulling loads exceeding 1,000 lbs, meeting Bellcore standards.
• Reverse Thread Design: Machined with right-hand and left-hand threads, allowing it to draw both conduit ends into the center simultaneously as you rotate the coupler.
• Installation: A wide, eight-pitch thread angle reduces the number of revolutions needed, allowing for fast, tool-free installation by hand.

Common Applications 

• Burial & Aerial: Suitable for direct bury, manholes, and aerial installations.
• Wall Types: Compatible with smooth, corrugated, or ribbed wall types of innerduct.
• Limitations: This model is not airtight or watertight. It should not be used in wet, submerged, or highly acidic/alkaline environments (outside pH 4–8).