Sioux Chief 643X202 1/2 in Pex X 1/2 in Male Sweat Adapter

Product Description

The SIOUX CHIEF 643X202 is a push-fit-style PEX-to-copper transition adapter used to connect 1/2 inch PEX tubing to 1/2 inch male sweat copper fittings. At 2 inches in length, this compact adapter bridges PEX distribution lines to sweat-connection copper end points, making it a practical fitting for rough-in plumbing work where both tubing types meet. It weighs approximately 0.05 pounds and is designed for straightforward installation in residential and light commercial potable water systems. Licensed plumbers and experienced plumbing contractors install this fitting during new construction and remodel work wherever a PEX-to-copper transition is required.

This adapter is suited for residential and light commercial potable water supply systems. It is commonly installed at fixture drops, manifold branch points, or service transitions where a PEX run terminates at a copper sweat connection. The 1/2 inch sizing makes it appropriate for standard branch-line applications feeding sinks, lavs, toilets, and similar fixtures. Install location is typically inside walls, under slabs, or in mechanical spaces alongside other PEX distribution components.

Key Features

• 1/2 inch PEX inlet transitions to 1/2 inch male sweat outlet in a single compact fitting
• 2 inch overall length suits tight rough-in spaces
• Lightweight at approximately 0.05 pounds, reducing cumulative load on PEX distribution assemblies
• Male sweat end accepts standard copper solder joint per common plumbing practice
• Designed for potable water supply line applications in residential and light commercial settings

Compatibility

Designed as an OEM-style transition fitting for 1/2 inch PEX tubing systems connecting to 1/2 inch male sweat copper fittings in residential and light commercial potable water supply installations.

Installation Notes

Installation is performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local amendments. Shut off the water supply and relieve system pressure before cutting into any existing line. The sweat end requires standard soldering tools and flux-core solder rated for potable water use. Do not overtighten or stress the PEX connection during assembly, as PEX fittings rely on correct expansion or crimp methods depending on the system type in use.

Technical Specifications

• Inlet Connection: 1/2 inch PEX
• Outlet Connection: 1/2 inch Male Sweat
• Overall Length: 2 inches
• Package Dimensions (L x W x H): 2.78 inches
• Weight: 0.04 pounds

Standard Information

• Brand: SIOUX CHIEF
• Manufacturer Part Number: 643X202