Carlon 4 Inch Schedule 40 Non-Metallic Expansion Coupling with Mid-Point Indicator

Carlon 4 Inch Schedule 40 Non-Metallic Expansion Coupling with Mid-Point Indicator

Professional-Grade Temperature Compensation Solution

The Carlon 4 Inch Schedule 40 Expansion Coupling delivers professional-grade conduit system performance for temperature-sensitive electrical installations. This non-metallic expansion fitting features an exclusive molded-in mid-point indicator designed for electrical contractors and installers, providing the reliable performance and UL Listed safety that electrical professionals demand for compensating length changes in exposed conduit runs.

Professional Features & Benefits

Advanced Temperature Compensation

• Exclusive Mid-Point Indicator - Molded-in visual reference ensures proper installation positioning and optimal expansion range
• Schedule 40 Compatibility - Engineered for seamless integration with standard Schedule 40 conduit systems
• Temperature Variation Management - Compensates for thermal expansion and contraction in exposed conduit installations
• Professional Piston Design - Smooth operation allows controlled movement while maintaining conduit system integrity

UL Listed Safety & Compliance

• UL E23018 Certification - Meets rigorous electrical safety standards for conduit system components
• Code Compliant Installation - Approved for use in electrical conduit systems requiring thermal expansion accommodation
• Non-Metallic Construction - Corrosion-resistant materials ensure long-term reliability in harsh environmental conditions

Technical Specifications

4 inch Schedule 40 conduit compatibility, non-metallic construction with molded-in mid-point indicator, UL E23018 Listed certification, designed for temperature variation compensation in exposed conduit runs, professional-grade piston mechanism for smooth thermal movement accommodation.

Installation Process

1. Verify conduit system requires thermal expansion accommodation for exposed runs subject to temperature variations
2. Position expansion coupling at calculated mid-point of conduit run using molded-in indicator as reference guide
3. Connect Schedule 40 conduit sections ensuring proper engagement with coupling ends for secure mechanical connection
4. Align mid-point indicator to neutral position allowing equal expansion movement in both directions
5. Secure conduit supports at appropriate intervals maintaining expansion coupling movement clearance
6. Test piston movement to verify smooth operation and proper thermal compensation range

Professional Applications

Ideal for:

• Exposed Conduit Runs - Outdoor electrical installations subject to significant temperature variations and thermal cycling
• Industrial Electrical Systems - Manufacturing facilities with temperature-sensitive conduit routing requiring expansion accommodation
• Commercial Building Exteriors - External conduit systems on building facades exposed to seasonal temperature changes
• Rooftop Electrical Installations - HVAC and equipment conduit runs experiencing extreme temperature fluctuations
• Bridge and Infrastructure Wiring - Long conduit runs on structures requiring thermal movement compensation
• Solar Installation Conduit - Photovoltaic system wiring exposed to high temperature variations throughout daily cycles
• Parking Structure Electrical - Exposed conduit systems in parking garages subject to temperature extremes
• Process Piping Areas - Electrical conduit near hot process equipment requiring thermal expansion management

Non-Metallic Construction Advantage

Carlon's non-metallic materials provide superior corrosion resistance compared to metallic expansion joints, eliminating rust and oxidation concerns in harsh environmental conditions. The lightweight construction reduces installation labor while maintaining structural integrity, and the non-conductive properties enhance electrical safety in conduit system applications.

Why Choose Carlon Quality?

Carlon's commitment to UL Listed safety and innovative design features like the exclusive molded-in mid-point indicator demonstrates their dedication to providing electrical professionals with reliable, code-compliant solutions. This expansion coupling represents decades of conduit system expertise, ensuring proper thermal compensation while maintaining the electrical integrity and mechanical strength that contractors demand for professional installations.