Description
Westlake Pipe & Fittings 435030 3″ SKT x FPT Female Adapter
The Westlake Pipe & Fittings 435030 3″ Female Adapter is a precision-manufactured PVC adapter fitting designed for seamless integration of piping systems that utilize different connection methods. Specifically engineered by Westlake Pipe & Fittings, one of North America’s foremost manufacturers of PVC pipe and fittings with decades of industry leadership and rigorous quality standards, this adapter serves as a dependable transition piece in both residential and commercial plumbing systems.
At its core, the 435030 adapter is a Schedule 40 PVC fitting — meaning it conforms to standardized PVC thickness and dimensional criteria that ensure compatibility with Schedule 40 PVC piping, a widely used class of pipe known for reliable performance under moderate pressure and typical fluid transport conditions. The adapter’s nominal 3-inch size makes it suitable for medium-sized piping runs, especially in water distribution, pool and spa plumbing, irrigation systems, and general fluid conveyance applications.
The 435030 adapter is crafted from high-quality polyvinyl chloride (PVC), a thermoplastic material prized for its combination of strength, chemical resistance, light weight, and longevity. PVC’s inherent resistance to corrosion, rust, and most common chemicals makes it ideal for use in environments where metal fittings would deteriorate or require frequent maintenance. The smooth internal surface of the PVC material also promotes unobstructed flow and minimizes pressure loss due to friction or buildup.
One end of the adapter features a socket (SKT) connection, sometimes referred to as a “slip” end. This end is designed to accept a Schedule 40 PVC pipe that is secured using solvent welding — a process where PVC primer and cement chemically fuse the pipe to the fitting, forming a permanent and leak-free joint. Solvent-welding is widely used because it creates a bond that is as strong as or stronger than the pipe itself, making the connection highly durable and resistant to leaks when properly installed.
On the opposite side, the fitting incorporates a Female Pipe Thread (FPT) connection. This threaded end is machined internally with standard pipe threads that allow a male threaded PVC or metal pipe fitting to be securely screwed in. FPT connections are commonly used when there is a need to connect to equipment, valves, or other system components that protrude or require periodic removal, such as pumps, maintenance valves, gauges, or other threaded accessories.
The PVC construction of the 435030 contributes to its durability. Unlike metals that can corrode over time in wet or chemically aggressive environments, PVC resists corrosion, scaling, and rust. Its lightweight nature also reduces handling strain and simplifies installation, particularly in retrofit applications or overhead plumbing runs. Furthermore, PVC does not conduct electricity, offering an advantage in installations sensitive to grounding or electrical safety issues.Maintenance needs are minimal once installed, provided the system is operated within recommended pressures and temperatures. In systems where threaded components need periodic removal for maintenance or replacement, the female threaded end allows easier disassembly on that side without disturbing the solvent-welded connection.
The utility of the 435030 extends across various system types. In residential plumbing, it connects smooth PVC lines to threaded valves or fixtures where adjustments or replacements may be necessary. In irrigation systems, it bridges mainline PVC pipe with threaded sprinkler heads or control valves. In pool and spa installations, this adapter offers a reliable way to connect PVC pipe to threaded pumps, filters, or accessories. Even in light industrial settings, PVC adapters like the 435030 excel in conveying non-corrosive fluids where corrosion-free performance and ease of assembly are priorities.
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 435030 3″ SKT x FPT Female Adapter Features:
- Connection Transition: Smooth socket end for solvent welding + female threaded end for male pipe threads
- Ease of Installation: Designed for easy solvent cement installation and threaded connection with seal tape
- Application Versatility: Ideal for residential, commercial, irrigation, pool/spa, and light industrial systems
- Corrosion & Chemical Resistance: PVC construction resists corrosion, rust, and many chemicals
- Material: Made from high-quality PVC (polyvinyl chloride) for durability and corrosion resistance
- Brand Reliability: Manufactured by Westlake Pipe & Fittings — a leading PVC supplier
- Schedule: Schedule 40 fitting, matching standard Schedule 40 PVC pipe dimensions
- Temperature Rating: Suitable for continuous service up to approx. 140 °F (60 °C)
- Type: 3″ SKT (Socket) x FPT (Female Pipe Thread) adapter for PVC systems
- Lightweight: Easier to handle and install than metal fittings
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