Westlake Pipe & Fittings 438337 3″ x 1.5″ Spigot x FPT Reducing Bushing

Description

Westlake Pipe & Fittings 438337 3″ x 1.5″ Spigot x FPT Reducing Bushing

The Westlake Pipe & Fittings 438337 3″ x 1.5″ Reducing Bushing is a high-quality PVC fitting designed to provide a dependable and efficient transition between larger socket-style piping and smaller threaded connections. Engineered for durability, compatibility, and long-term reliability, this reducing bushing is an essential component in plumbing, irrigation, pool & spa, and light industrial piping systems where size reduction and threaded connectivity are required.

This fitting features a 3-inch spigot end that fits directly into a 3-inch socket fitting, coupled with a 1.5-inch female pipe thread (FPT) outlet that allows connection to male-threaded components such as pipes, valves, adapters, or equipment. By combining these two connection styles into a single compact component, the 438337 reducing bushing simplifies system design, minimizes the need for multiple fittings, and helps reduce potential leak points within the pipeline.

Manufactured from premium PVC (polyvinyl chloride) material, the Westlake 438337 reducing bushing delivers excellent resistance to corrosion, scale buildup, and chemical attack. PVC is widely trusted across plumbing and fluid-handling industries due to its non-reactive nature, making it suitable for water distribution, irrigation, and other non-aggressive fluid applications. Unlike metal fittings, PVC will not rust, pit, or corrode over time, even in damp or buried environments.

The smooth interior surface of the bushing supports efficient fluid movement while reducing friction losses and minimizing the accumulation of debris or sediment. This contributes to consistent system performance and helps extend the overall service life of the piping network.

The spigot end of this reducing bushing is designed to match the outside diameter of standard Schedule 40 PVC pipe. This allows it to be solvent-welded directly into a 3-inch socket fitting using standard PVC primer and cement. Once cured, the solvent-welded joint forms a strong, permanent, and leak-resistant connection that is capable of handling pressure and long-term use.

On the opposite side, the 1.5-inch female pipe thread (FPT) end is molded to precise NPT (National Pipe Thread) standards. This ensures proper thread engagement with compatible male-threaded components and allows for secure sealing when used with thread seal tape or approved pipe thread sealant. The threaded connection also provides flexibility during installation, allowing for easy disassembly or replacement of downstream components if required.

The long-body configuration of the Westlake 438337 offers practical advantages over shorter bushings. The increased body length provides greater surface area for solvent cement bonding on the spigot end, which enhances joint strength and reduces the risk of misalignment during installation. Additionally, the extended threaded section allows for improved thread engagement, helping to create a more reliable seal and reducing the chance of leaks caused by insufficient thread contact.

The gradual internal reduction from 3 inches down to 1.5 inches also helps promote smoother flow transitions, reducing turbulence and pressure loss within the system. This is particularly beneficial in applications where maintaining consistent flow characteristics is important.

This reducing bushing is well suited for a variety of residential, commercial, and light industrial uses. In plumbing systems, it is commonly used to reduce line sizes when connecting large-diameter mains to smaller branch lines, fixtures, or equipment. In irrigation systems, it enables efficient transitions from main supply lines to control valves, filters, or distribution components.

Pool and spa installations frequently rely on spigot x FPT bushings to connect threaded pump fittings, heaters, or chlorination equipment to PVC piping. The Westlake 438337 provides a clean, reliable solution that integrates seamlessly with standard pool plumbing components.

Industrial and utility installations also benefit from this fitting when adapting piping systems for instrumentation, pressure monitoring devices, or specialty equipment that requires threaded connections.

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 438337 3″ x 1.5″ Spigot x FPT Reducing Bushing Features:

• Ideal for plumbing, irrigation, pool & spa, and utility use
• Precision-molded NPT threads for secure connections
• Durable PVC construction for corrosion resistance
• Long-body design for stronger solvent-weld joints
• Size: 3″ Spigot x 1.5″ Female Pipe Thread (FPT)
• Compatible with Schedule 40 PVC systems
• Smooth interior for efficient fluid flow
• Reduces need for multiple fittings
• Lightweight and easy to install

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