Description
Westlake Pipe & Fittings 436213 1.5″ x 2″ MPT x SKT Male Reducing Adapter
The Westlake Pipe & Fittings 436213 is a 1.5 inch x 2 inch male reducing adapter engineered to deliver reliable performance in a wide range of piping systems that require a secure, durable, and efficient method of joining pipes of different diameters. As an authentic piece from Westlake Pipe & Fittings — one of the most trusted manufacturers of PVC pipe and fittings in North America — this adapter is built with quality, compatibility, and long-term serviceability in mind.
At its core, the 436213 adapter is designed to bridge two disparate pipe sizes: a 1.5 inch male pipe threaded (MPT) connection on one end and a 2 inch socket (SKT) connection on the other. This configuration enables the adapter to function as a reducing component, meaning it directs the flow from a larger pipe to a smaller one while maintaining structural integrity in the joint. Its primary role is to offer a smooth and secure transition between different pipe sizes, eliminating the need for more complex assemblies or additional fittings.
Constructed from high-quality PVC (polyvinyl chloride), this adapter leverages the material’s inherent strengths: durability, corrosion resistance, chemical inertness, and lightweight construction. PVC has long been the material of choice for plumbing and fluid transfer systems because it resists degradation under normal environmental and usage conditions, including exposure to water, many chemicals, and ultraviolet light. This characteristic ensures that components like the 436213 adapter can maintain performance over many years without significant wear or failure.
The adapter is manufactured to Schedule 40 standards, which denotes a specific wall thickness that balances mechanical strength with practical ease of installation. Schedule 40 PVC fittings are widely accepted for pressure systems, including potable water, irrigation, drainage, and various industrial applications. The socket end of the adapter is engineered to receive standard Schedule 40 PVC pipe, which is then bonded using solvent cement to form a permanent, leak-resistant joint.
A key advantage of the 436213 adapter is its male threaded end, which conforms to typical NPT (National Pipe Thread) specifications. This end provides a secure means of connecting to female-threaded components such as valves, pump inlets, regulators, or other threaded fittings. When properly sealed (typically with PTFE tape or pipe thread sealant), this threaded connection can provide a leak-resistant joint that stands up to normal operating pressures.
On the opposite end, the adapter features a smooth socket that accepts the plain end of a 2 inch PVC pipe. This socket is intended for solvent welding, a process where a chemical cement is used to fuse the pipe and fitting into a single, homogenous structure. Solvent-welded joints are known for their strength and reliability when executed properly, and they form the backbone of many PVC piping systems.
The reducing aspect of the fitting means that fluid dynamics within the system are carefully managed. By transitioning from a larger diameter to a smaller one, the adapter facilitates controlled flow, which can help reduce turbulence and maintain desired pressure levels. While reducing adapters are common in plumbing, the specific sizes of the 436213 make it especially useful in applications where a 2 inch line needs to interface with a smaller 1.5 inch component — such as in irrigation manifolds, pool and spa return lines, or secondary branches in water distribution systems.
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 436213 1.5″ x 2″ MPT x SKT Male Reducing Adapter Features:
- Threaded MPT end provides secure connection to female threaded components
- Schedule 40 rating for compatibility with standard pressure piping systems
- Made from durable, corrosion-resistant PVC material for long service life
- Ideal for plumbing, irrigation, pool & spa, and industrial fluid systems
- Connects 1.5″ male pipe thread (MPT) to 2″ socket (SKT) PVC pipe
- Facilitates smooth size reduction with minimal flow disruption
- White PVC construction allows for easy visual inspection
- Socket end designed for reliable solvent-welded joints
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