Rigid Non-Metallic Conduit (Schedule 40 & 80)

Yes, the most common type of rigid non-metallic conduit is made from PVC (polyvinyl chloride). Schedule 40 PVC conduit is used in standard electrical applications, while Schedule 80 offers a thicker wall for added mechanical protection. HDPE is another rigid non-metallic option preferred for outdoor, direct-burial, and utility infrastructure projects.

Regular conduit can refer to both flexible and rigid types, while rigid conduit — such as Schedule 40 or Schedule 80 PVC — is a fixed, non-bendable pipe that provides maximum mechanical protection for conductors. Rigid non-metallic conduit is preferred for underground runs, concrete encasement, and outdoor electrical or telecom infrastructure where structural integrity is required.

Schedule 40 PVC conduit has a thinner wall and is used in standard electrical installations where moderate protection is sufficient. Schedule 80 features a thicker wall for greater mechanical strength, making it ideal for exposed above-ground runs, heavy-duty industrial environments, and locations where physical impact is a concern. Both are listed for use in wet and dry locations.

Yes. Both PVC and HDPE rigid non-metallic conduits are rated for outdoor use. PVC conduit is suitable for above-ground and underground outdoor installations, while HDPE conduit is specifically engineered for outdoor utility and direct-burial applications. Always verify UV resistance ratings for above-ground exposed installations in direct sunlight.

HDPE conduit is best suited for outdoor, underground, and utility infrastructure applications including electrical and telecommunications cable routing, direct-burial installations, and outside plant (OSP) projects. Its flexibility, impact resistance, and durability in extreme temperatures make it a preferred choice for large-scale utility and telecom infrastructure builds.

Microduct is a small-diameter, lightweight conduit designed specifically for fiber optic cable installation and outside plant (OSP) telecom applications. Unlike standard PVC or HDPE conduit, microduct is optimized for blowing or pushing fiber cables through, supporting high-density installations in tight spaces. It is primarily used in telecommunications and utility infrastructure projects.