Westlake Pipe & Fittings 439005 0.5″ MPT x FPT Threaded Bushing

Description

Westlake Pipe & Fittings 439005 0.5″ MPT x FPT Threaded Bushing

The Westlake Pipe & Fittings 439005 0.5″ Threaded Bushing is a precision-molded PVC fitting designed to provide a reliable and efficient method for adapting threaded pipe connections within a plumbing or fluid handling system. Engineered for durability, dimensional accuracy, and ease of installation, this threaded bushing plays a vital role in applications where pipe size reduction is required without sacrificing structural integrity or sealing performance. As part of Westlake’s extensive line of high-quality PVC fittings, this component reflects the brand’s commitment to long-term reliability and industry-standard compatibility.

This threaded bushing is specifically designed with male pipe threads (MPT) on the exterior and female pipe threads (FPT) on the interior, both sized at 0.5 inches. This configuration allows installers to reduce or adapt threaded connections seamlessly, making it ideal for use with valves, manifolds, pumps, pressure regulators, irrigation equipment, and other threaded plumbing components. The threaded-to-threaded design eliminates the need for solvent welding, enabling easier disassembly, maintenance, or system modification when required.

Manufactured from high-grade PVC (polyvinyl chloride), the Westlake 439005 threaded bushing offers excellent resistance to corrosion, scale buildup, and chemical degradation. PVC is widely used in plumbing and industrial piping systems due to its non-reactive nature and long service life, particularly in water distribution and low-to-moderate pressure applications. Unlike metal bushings, this PVC fitting will not rust, pit, or corrode, even in environments with moisture exposure or mildly aggressive fluids.

The rigid yet lightweight construction makes handling and installation easy while maintaining the strength required for threaded pressure connections. Precision molding ensures consistent wall thickness and accurate thread geometry, allowing for smooth engagement with mating components and a dependable seal when used with appropriate thread sealant or PTFE tape. Westlake’s quality control standards ensure that each bushing meets dimensional tolerances necessary for proper fit and function in standardized piping systems.

The 0.5″ MPT x 0.5″ FPT configuration allows this threaded bushing to act as a compact transition or reducer within threaded assemblies. The male threads conform to industry-standard NPT (National Pipe Thread) specifications, ensuring compatibility with commonly used female threaded fittings, ports, and equipment housings. Similarly, the internal female threads are designed to accept standard male threaded pipe or fittings with a secure, leak-resistant connection.

Threaded bushings like the Westlake 439005 are particularly useful in applications where permanent joints are not desirable or where future system changes are anticipated. Unlike solvent-welded fittings, threaded connections can be disassembled, replaced, or repositioned with minimal disruption. This makes the fitting well suited for serviceable systems such as irrigation control assemblies, filtration setups, and mechanical rooms where access and adjustability are important.

The Westlake 439005 threaded bushing is suitable for a wide range of residential, commercial, and light industrial applications. In residential plumbing, it is commonly used to adapt threaded supply lines, fixtures, or accessories. In irrigation systems, the bushing helps integrate valves, timers, and emitters that use threaded connections, ensuring proper alignment and secure sealing. For pool and spa plumbing, it serves as a dependable adapter between threaded pump components and auxiliary equipment.

In commercial and industrial environments, this threaded bushing supports fluid conveyance systems that require compact, space-saving transitions. Its smooth internal bore helps maintain consistent flow while minimizing turbulence and pressure loss. Because PVC does not support biological growth or scaling in the same way some metals do, the fitting contributes to cleaner system operation over time.

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 439005 0.5″ MPT x FPT Threaded Bushing Features:

• 0.5″ male pipe thread (MPT) x 0.5″ female pipe thread (FPT) configuration
• Suitable for plumbing, irrigation, pool, and fluid handling applications
• Precision-molded threads for secure, leak-resistant connections
• Durable PVC construction for corrosion resistance
• Allows easy disassembly and system modification
• Compatible with Schedule 40 PVC systems
• Ideal for threaded pipe size adaptation
• Lightweight yet strong design

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