Sioux Chief sc-643x4 Pex Male Sweat Adapter 1 Inch

Product Description

The SIOUX CHIEF sc-643x4 is a one-piece straight adapter designed to connect 1-inch PEX tubing to a 1-inch male sweat (copper solder) fitting. Part of the Tomahawk PEX fitting line, it gives licensed plumbers a reliable transition point between PEX distribution lines and copper sweat connections in residential and light commercial plumbing systems. The adapter is a single-piece construction, keeping the connection count low and the installation straightforward. It is rated for use across Sioux Chief PEX systems and carries a 25-year warranty on both fittings and tubing regardless of whether components are mixed or matched within the Sioux Chief lineup.

This adapter is suited for new construction rough-in and retrofit applications where a PEX supply line terminates at a copper sweat connection. Typical scenarios include connecting PEX branch lines to copper stub-outs at fixtures, valves, or manifold transitions. The 1-inch size makes it appropriate for main distribution runs in residential systems or branch feeds in light commercial plumbing where larger flow capacity is required.

Key Features

• One-piece straight adapter construction minimizes potential leak points
• 1-inch PEX inlet to 1-inch male sweat outlet transition
• Part of the Tomahawk PEX fitting series from Sioux Chief
• 25-year warranty covering fittings and tubing, mixed or matched within the Sioux Chief PEX system
• Compatible across all major Sioux Chief PEX systems without warranty restrictions based on mixed connections

Compatibility

Designed for use with Sioux Chief PEX tubing and fitting systems. Suitable as an OEM-style adapter fitting for 1-inch PEX-to-male-sweat transition applications in residential and light commercial plumbing.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and relieve system pressure before beginning work. The male sweat end requires standard copper soldering technique; ensure the fitting and mating copper are clean and properly fluxed before applying heat. The PEX end should be installed using the correct tool and ring or clamp system specified for the PEX connection type in use.

Technical Specifications

• Fitting Type: Straight Adapter
• Connection 1: 1 inch PEX
• Connection 2: 1 inch Male Sweat
• Pieces: 1
• Warranty: 25 years

Standard Information

• Brand: SIOUX CHIEF
• Manufacturer Part Number: sc-643x4