Westlake Pipe & Fittings 854-040FT Flange Loose Ring, 4″ Slip

Description

Westlake Pipe & Fittings 854-040FT Flange Loose Ring, 4″ Slip

The Westlake Pipe & Fittings 854‑040FT Flange Loose Ring, 4″ Slip, is a professional‑grade PVC fitting designed to provide a robust, reliable connection point in large‑diameter Schedule 40 PVC piping systems. Engineered for both permanent and removable flange applications, this loose ring flange allows installers to bond a 4‑inch slip pipe to a bolted flange assembly efficiently. Its versatile design makes it ideal for use in pool and spa plumbing, irrigation systems, wastewater management, and industrial processes where a secure flange connection is essential for equipment interfaces, valves, or service points.

Constructed from durable, corrosion‑resistant PVC, this flange loose ring is built to perform in demanding environments where metal flanges would be prone to rust, scaling, or deterioration. PVC’s inherent resistance to a wide range of chemicals, water exposure, and environmental conditions makes the 854‑040FT suitable for both indoor and outdoor installations. Whether you’re installing filtration equipment, pumps, backflow preventers, or other threaded hardware, the flange provides a solid foundation that maintains system integrity and minimizes the risk of leaks.

The 4‑inch slip connection allows the flange to be solvent‑welded directly to Schedule 40 PVC pipe using standard primer and cement. Once bonded, the flange becomes part of the pipeline’s structure, adding strength and stability while preserving the ability to detach flanged components as needed for maintenance or repair. The “loose ring” design refers to the fact that the ring portion of the flange — the part with the bolt holes — is separate from the slip body until final assembly. This permits easier alignment on the job site and flexibility during installation.

A critical advantage of a loose ring flange is that it allows installers to make final alignment adjustments after the pipe has been set, minimizing stress and ensuring proper mating with other flanges or equipment pads. This helps prevent misalignment that can cause leaks, gasket failures, or premature wear on connected components. Once aligned, the loose ring mates with ANSI‑style flanges on pumps, valves, or other system hardware using bolts and a gasket to form a secure, leak‑resistant seal.

The Westlake 854‑040FT flange is widely used in pool and spa plumbing, where it provides reliable connections to pumps, heaters, filters, and automation systems. It also finds application in irrigation and agricultural systems, allowing for easy integration of valves or flow control equipment. Industrial water lines and chemical delivery systems benefit from its corrosion‑resistant construction, while municipal systems may use it where periodic service access is required.

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 854-040FT Flange Loose Ring, 4″ Slip Features:

• Made from high-quality PVC for exceptional corrosion and chemical resistance
• Precision-molded bolt holes ensure accurate alignment and reliable fastening
• Durable, corrosion‑ and chemical‑resistant PVC construction for long‑lasting performance
• Lightweight yet durable, reducing installation time and effort
• Ideal for industrial, commercial, and irrigation applications

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