The NDS Schedule 35 3 in. Hub x 3 in. D FPT PVC Pipe Adapter is purpose-built for reliable underground sewer connections that demand both a strong, solvent-weld hub and a durable threaded end. Crafted from lead-free PVC and backed by IAPMO certification and NSF listing, this adapter delivers CODE-approved performance you can trust in every installation.
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Two precise ends: a 3" hub for a solvent-weld connection with Schedule 35 PVC pipe, and a 3" female pipe thread (FPT) for a threaded connection.
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Material and certifications: lead-free PVC construction, IAPMO certified, NSF listed, and suitable for underground drainage.
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Exact dimensions: End 1 diameter 3" (Hub); End 2 diameter 3" (FPT).
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Designed for sewer piping: ideal for converting or bridging 3" Schedule 35 sewer lines to threaded fittings in below-ground installations.
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Performance: Maximum Pressure 5 (as specified in the product data); engineered for dependable service in underground drainage systems.
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Packaging: sold as a single piece in bulk packaging, ready for field use.
Why and where to use this adapter
When your project requires transitioning from a hub-based Schedule 35 sewer line to a threaded connection, this adapter keeps the workflow smooth and code-compliant. It’s well-suited for cleanouts, vent connections, or branches where a threaded outlet is advantageous — all while maintaining the structural integrity of 3" piping in an underground environment.
Practical installation notes
- Connect the hub end to standard 3" Schedule 35 PVC pipe using solvent cement for a watertight, durable joint.
- Thread the FPT end to compatible 3" PVC threaded fittings or components; apply an appropriate thread sealant rated for PVC threads and avoid over-tightening to prevent damage.
- Verify alignment before tightening and ensure the application remains within the product’s underground-rated use case for long-term reliability.
With its combination of Schedule 35 rigidity, dual-end versatility (hub to FPT), and proven credentials, this NDS adapter is a targeted solution for trustworthy underground sewer piping assemblies. Add it to your project to ensure a secure, compliant transition between hub and threaded PVC connections.
