Westlake Pipe & Fittings 420040 4″ SKT Cross

Description

Westlake Pipe & Fittings 420040 4″ SKT Cross

The Westlake Pipe & Fittings 420040 4″ Cross is a highly reliable, industrial-grade PVC pipe fitting designed to provide a strong, corrosion-resistant four-way junction in medium to large diameter piping systems. Produced to meet rigorous Schedule 40 standards, this cross fitting offers a robust solution for distributing fluids across multiple directions in residential, commercial, industrial, irrigation, and municipal applications. Its precise construction and compatibility with standard 4-inch PVC Schedule 40 pipes make it a trusted choice for engineers, contractors, and system designers seeking dependable performance and long-term durability.

At its core, the Westlake 420040 is built from premium industrial-grade PVC (polyvinyl chloride) — a material renowned in the piping industry for its excellent durability, chemical resistance, and extended service life. PVC’s inherent properties allow it to withstand harsh environments where metallic fittings would deteriorate, corrode, or fail prematurely. This makes the fitting particularly suitable for systems conveying water, wastewater, chilled liquids, agricultural irrigation fluids, and other compatible media. The smooth interior surface helps reduce friction and energy losses while facilitating efficient, uninterrupted fluid flow.

As a Schedule 40 socket (SKT) cross, the 420040 is engineered with four socket connections, each sized to accept a nominal 4″ Schedule 40 PVC pipe. The sockets are designed for solvent-weld installation, where PVC primer and solvent cement chemically bond the pipe and fitting into a permanent, leak-resistant joint. This method ensures joint integrity and strength equivalent to — and in many cases exceeding — the adjacent pipe. System designers favor this joint method because it forms a robust mechanical and chemical connection without mechanical components that might loosen over time.

PVC Schedule 40 fittings like the Westlake 420040 conform to industry standards such as ASTM D2466 for material performance, manufacturing quality, and dimensional accuracy. These standards ensure that the fitting will mate correctly with other Schedule 40 components, maintaining system uniformity and reducing installation errors. The fitting’s consistent dimensions simplify design planning and system assembly, whether installed above ground, below ground, or within building structures.

The cross configuration of this fitting permits fluid distribution or convergence from four directions, making it ideal for complex piping networks where multiple branches stem from a common main line. This four-way junction is especially beneficial in irrigation manifolds, pool circulation systems, processing plants, and water distribution networks requiring efficient flow division or collection. The balanced geometry of the cross allows fluid to be split evenly or recombined without sharp turns that can increase pressure drop or turbulence — a common concern in fluid dynamic design.

Equally important, the 420040’s Schedule 40 wall thickness ensures that the fitting maintains sufficient mechanical strength for pressure applications appropriate to its size. While actual pressure capacity varies depending on system design, operating temperature, and pipe schedule, typical Schedule 40 PVC products are specified for general plumbing, irrigation, and water handling services with adequate safety margins under normal operating conditions. These fittings are not intended for use with compressed air or gases unless specifically rated, as PVC’s material properties are optimized for liquids.

PVC’s resistance to corrosion and many chemical agents means this fitting can be used in environments where other materials might struggle. Systems exposed to damp conditions, agricultural runoff, treated and untreated water, and mildly aggressive chemicals benefit from PVC fittings that will not rust, scale, or pit. As a result, maintenance requirements are significantly lower compared to metallic alternatives, and the long life expectancy can translate to lower life-cycle costs for infrastructure projects.

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 420040 4″ SKT Cross Features:

• Corrosion-resistant and chemically stable, suitable for water, wastewater, and many chemical environments
• Suitable for typical applications requiring PVC performance at temperatures up to around 140°F
• Schedule 40 construction ensures compatibility with industry-standard PVC pipe and fittings
• Designed for solvent-weld installation, creating leak-resistant, permanent joints
• Conforms to ASTM D2466 quality requirements for PVC pressure fittings
• Smooth internal surface improves fluid flow and minimizes turbulence
• Lightweight and easy to handle, reducing labor and installation time

Pool Warehouse

America's Favorite Pool Store, building backyard dreams since 1996!