Westlake 854100FT 10″ Slip Flange, Loose Ring

Description

Westlake Pipe & Fittings 854100FT 10″ Slip Flange, Loose Ring

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The Westlake Pipe & Fittings 854100FT 10″ Slip Flange with Loose Ring is a heavy-duty Schedule 40 PVC flange assembly designed to create secure, serviceable connections in large-diameter piping systems. It is commonly used to connect PVC pipe to flanged valves, pumps, tanks, filters, and other mechanical equipment where precise bolt alignment and future disassembly may be required.

The flange stub is manufactured from durable PVC, offering excellent resistance to corrosion, chemical exposure, moisture, and environmental stress. Unlike metal flanges, it will not rust, scale, or degrade over time, making it well suited for water treatment facilities, industrial processing plants, irrigation infrastructure, pool and spa systems, and municipal installations.

The 10-inch slip flange stub is designed for solvent-weld installation onto compatible PVC pipe using approved primer and cement. This chemical fusion process forms a permanent, leak-resistant bond that becomes an integral part of the piping system. Once installed, the loose ring slides freely over the flange face, allowing independent rotation of the bolt pattern for easier alignment during installation.

The loose ring distributes bolt load evenly across the flange face when properly gasketed and torqued, creating a tight and reliable seal capable of handling continuous operation and pressure fluctuations. The ability to rotate the ring reduces installation stress, minimizes binding, and helps prevent uneven gasket compression or bolt loading.

A smooth interior bore supports efficient fluid flow and reduced friction loss, while the precision-molded flange face ensures proper gasket seating and consistent sealing performance. Despite its large diameter, the PVC construction keeps the assembly significantly lighter than comparable metal flanges, improving handling, safety, and installation efficiency.

Designed for compatibility with standard Schedule 40 PVC piping systems, the Westlake 854100FT 10″ Slip Flange with Loose Ring delivers dependable alignment flexibility, corrosion resistance, and long-term performance in demanding large-diameter 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.