Description
Westlake Pipe & Fittings 478015 1.5″ Spigot x FPT PVC Adapter
The Westlake Pipe & Fittings 478015 1.5″ Spigot x FPT Adapter is a high-quality transition fitting engineered to deliver dependable, long-lasting performance in a wide range of fluid handling systems where a solvent-weld spigot connection must be reliably joined to a female pipe threaded outlet. Manufactured from premium-grade PVC, this adapter is designed to meet the demanding requirements of residential, commercial, agricultural, and light industrial piping applications, offering excellent resistance to corrosion, chemicals, moisture, and environmental degradation.
The 1.5-inch spigot end is precision-molded to provide a smooth, consistent outer diameter that fits seamlessly into standard PVC socket fittings using solvent cement, ensuring a strong, leak-free bond that becomes an integral part of the pipeline once cured. On the opposite side, the female pipe thread (FPT) connection is carefully formed to meet standard NPT threading specifications, allowing secure and tight attachment to compatible male-threaded pipes, valves, pumps, or other system components.
This dual-connection design makes the adapter an essential solution for system transitions, repairs, or upgrades where different connection types must be joined without compromising flow efficiency or structural integrity. The robust PVC construction not only provides high tensile strength and impact resistance but also ensures excellent dimensional stability under typical operating pressures and temperatures associated with cold-water distribution, irrigation systems, swimming pool plumbing, and drainage or vent applications.
Unlike metal adapters, the Westlake 478015 PVC adapter will not rust, pit, or corrode over time, making it particularly suitable for installations exposed to moisture, soil, fertilizers, or mildly aggressive chemicals. Its smooth internal bore helps maintain consistent flow characteristics, reducing turbulence and pressure loss while minimizing the risk of debris buildup inside the fitting. The lightweight nature of PVC makes handling and installation easier, reducing labor time and installer fatigue, while still delivering dependable mechanical performance once installed.
Designed with accuracy and uniform wall thickness, this adapter contributes to overall system reliability by evenly distributing stress across the fitting during operation, helping to prevent cracking or premature failure. Westlake Pipe & Fittings is known for adhering to strict manufacturing quality controls, and this adapter reflects that commitment by offering consistent performance, precise tolerances, and dependable compatibility with standard PVC piping systems. Whether used in new construction or retrofit projects, the 1.5″ Spigot x FPT adapter provides installers with a versatile and cost-effective solution that supports clean, professional installations. It is suitable for both above-ground and many below-ground applications when installed according to applicable codes and best practices, offering long service life with minimal maintenance requirements.
The fitting’s chemical resistance makes it a reliable choice in applications involving chlorinated water, many common acids and bases, and other non-solvent fluids typically conveyed through PVC piping. Its neutral material composition also prevents taste or odor transfer in potable water systems when used in appropriate cold-water applications. Overall, the Westlake Pipe & Fittings 478015 adapter combines strength, precision, and adaptability in a single component, making it a trusted choice for contractors, plumbers, maintenance professionals, and system designers seeking a dependable PVC transition fitting that delivers consistent performance, secure connections, and long-term value across a broad spectrum of piping installations.
Westlake Pipe & Fittings is dedicated to helping contractors maximize efficiency and helping engineers design systems that entire communities can rely on.With manufacturing & distribution centers across North America, dedicated sales, technical services, specification engineers and customer support teams, our unparalleled service allows you to design, specify and install complete projects with confidence.
Westlake Pipe & Fittings 478015 1.5″ Spigot x FPT PVC Adapter Features:
- It’s commonly used in residential and commercial settings and ensures effective water flow and pressure management
- This adapter is ideal for various plumbing applications where a spigot end needs to connect to a female pipe thread
- 1.5″ spigot x female pipe thread (FPT) configuration for versatile connections
- Suitable for plumbing, irrigation, pool, and general piping applications
- Standard NPT female threads for secure threaded connections
- Manufactured from durable, corrosion-resistant PVC material
- Precision-molded spigot end for strong solvent-weld joints
- Lightweight design for easy handling and installation
- Resistant to rust, scaling, and chemical corrosion
- Smooth interior bore to support efficient fluid flow
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