Westlake 406040SW 90-Degree Sweep Elbow, 4″ SL x SL

Description

Westlake Pipe & Fittings 406040SW 90-Degree Sweep Elbow, 4″ SL x SL

The Westlake Pipe & Fittings 406040SW 90-Degree Sweep Elbow is a high-quality 4-inch PVC fitting designed to provide a smooth, gradual directional change in medium-diameter piping systems. Ideal for residential, commercial, and industrial applications, it ensures efficient flow while minimizing turbulence, noise, and stress on connected components. Typical uses include plumbing, irrigation, pool and spa systems, water treatment, and industrial process piping.

Constructed from premium PVC, the 406040SW offers excellent resistance to corrosion, chemical exposure, and environmental degradation. Unlike metal elbows, it does not rust, scale, or pit over time. Its smooth internal bore reduces friction and pressure loss, maintaining consistent flow and protecting pumps, valves, and piping from excessive wear.

The sweep design differentiates this fitting from standard 90-degree elbows by creating a longer, gradual curve instead of a sharp bend. This reduces water velocity changes, turbulence, and system noise, making it particularly valuable in high-flow applications such as irrigation networks, large pool plumbing, and industrial water transfer systems.

Installation is straightforward thanks to the lightweight design and slip connections, which are compatible with standard Schedule 40 PVC piping. The elbow maintains structural integrity under standard system pressures and integrates seamlessly into new or existing piping layouts.

The 406040SW is versatile across many industries, including municipal water distribution, wastewater treatment, industrial process piping, and residential or commercial water systems. Its durable PVC construction and smooth interior minimize maintenance, prevent sediment buildup, and reduce the risk of clogging.

In summary, the Westlake 406040SW 4″ 90-Degree Sweep Elbow provides a professional-grade, reliable solution for directional changes in PVC piping systems. With superior material quality, efficient flow design, and ease of installation, it delivers long-term performance and consistent operation across a wide range of plumbing, irrigation, pool, and industrial applications.

Westlake Pipe & Fittings has earned its reputation as one of North America’s foremost manufacturers of PVC pipe and fittings, delivering reliable infrastructure solutions for municipal, plumbing, industrial, agricultural, irrigation, water-well, electrical, and pool/spa applications. Drawing on decades of industry experience and backed by the resources of a major global materials company, the firm manages a vast manufacturing and distribution network that ensures ready availability and regional supply across the continent. Its product portfolio spans an exceptional breadth — from pressure-rated PVC conduit and solvent-weld sewer and drainage pipes to gasket sewer fittings, high-strength PVCO pressure systems, injection-molded valves, CPVC hot-water fittings, and UV-resistant electrical conduits — enabling seamless integration into virtually any water, waste, or wiring infrastructure project. By employing cutting-edge PVC technologies such as Certa-Lok® restrained joints and molecular-oriented PVCO formulations, the company advances beyond conventional piping to offer enhanced joint stability, long-term durability, and superior resistance to corrosion, chemicals, and environmental stress. Every product reflects a commitment to sustainable construction practices, lightweight and cost-effective materials, and a design life measured in decades rather than years — reducing maintenance needs, lowering lifetime infrastructure costs, and enabling project planners to build with confidence. From small residential installations to large-scale municipal or commercial works, Westlake Pipe & Fittings stands out for its engineering rigor, full-system compatibility, and capacity to meet rigorous safety and performance standards. By combining versatile product lines, robust quality assurance, and a legacy of innovation, the company delivers piping solutions that support reliable water delivery, efficient drainage, robust electrical conduit, and long-term infrastructure integrity — providing professionals the dependable foundation needed for modern construction and utility projects.

Westlake Pipe & Fittings 406040SW 90-Degree Sweep Elbow, 4″ SL x SL Features:

• Lightweight and easy to install in new or retrofit systems
• Smooth internal surface reduces sediment buildup and friction
• Ideal for residential, commercial, and industrial applications
• Perfect for pool, irrigation, municipal water, and process piping systems
• Provides reliable, long-term performance under standard pressures

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