Rigid Nonmetallic Cellular Core Schedule 40 PVC Conduit 

What is Cellular Core?

Cellular core technology uses two extruders to create a conduit composed of three layers: a solid inner, a solid outer and cellular PVC core. Virgin PVC resin is used to create all layers. The resulting product is lighter weight, yet meets or exceeds all UL 651 testing. 

So-Lite Specifications.

Southern Pipe, Inc. rigid nonmetallic cellular core Schedule 40 conduit (So-Lite™) is manufactured to meet or exceed ANSI/UL 651, 90° C, NEMA TC-2, and ASTM F-891. So-Lite conduit is available UL Listed and RUS Listed in sizes 3”, 4”, 5” and 6” and non-UL Listed 8”. So-Lite conduit is acceptable as nonmetallic raceway for conductors and cable in accordance with Article 352 of ANSI/NFPA 70, “National Electric Code”. So-Lite conduit is suitable for aboveground use indoors or outdoors exposed to sunlight and weather where not subject to physical damage, and for underground use by direct burial or encasement in concrete. Each piece bears the UL listing number (39GX), is marked RUS Listed, and has permanent markings to identify manufacturer, date and shift manufactured. Samples are tested by in-house quality control along with representatives of Underwriters Laboratories to assure compliance to these specifications. The PVC material used to manufacture Southern Pipe, Inc. conduit meets or exceeds compound cell classification 12254B as defined by ASTM D 1784 Standard Specification, Rigid Polyvinyl Chloride Compounds for Cell Classification 12454B (Formerly Type 1, Grade 1 and also designated PVC 1120). All products manufactured by Southern Pipe, Inc. are produced in New London, North Carolina, USA.

Advantages of So-Lite.

Lighter Weight
• Decreases fatigue and installation time

Chamfered Spigot End
• Smooth junctions ensure less wear on conductors during pulls

Bell Reference Line
• Know exactly when pieces are coupled properly.

Increased impact resistance, especially in cold weather.

So-Lite™ has been approved and used in a variety of projects, utilities, and DOTs, including but not limited to:

• Utility / Power

• Industrial

• Airports / Transportation

• Military / Government

• Hospitals

• Data Centers

• Municipal

• DOT /Highway

• Schools / Universities

• Miscellaneous

• Utility / Power • Industrial • Airports / Transportation • Military / Government • Hospitals • Data Centers • Municipal • DOT /Highway • Schools / Universities • Miscellaneous

FAQs

  • Yes. So-Lite is manufactured, tested, and listed under the same UL 651 specification as solid wall Schedule 40.

  • Yes. NEMA TC 2 Scope states “NEMA TC 2-2013 Covers the following types of Electrical Polyvinyl Chloride (PVC) Conduit (EPC), which may be constructed of a single, solid layer of PVC, or may be constructed of multiple layers of PVC, one of which may be cellular (foamed) PVC.”

  • Yes. All dimensions and tolerances are identical to solid wall Schedule 40 conduit.

  • Yes. Field bending using NEC approved devices is acceptable. Due to faster heat dissipation, heating and cooling times are decreased.

  • So-Lite is currently available in 3”, 4”, 5”, 6” & 8” Sch 40