1 inch x 1/2 inch Copper Reducing Coupling Copper x Copper

1 Inch x 1/2 Inch Copper Reducing Coupling – Wrot Copper Fitting for Soldered Pipe Transitions

The 1 inch x 1/2 inch copper reducing coupling is a solder joint fitting used to connect copper tubing of two different diameters in potable water and hydronic systems. Designed for use with soldered copper tube connections, it ensures a permanent, code-compliant transition between line sizes in both new construction and retrofit piping layouts.

Material and Dimensional Standards

This fitting is manufactured from lead-free wrought copper conforming to ASTM B75 and is compatible with Type K, L, and M copper tube. It features socket (cup) connections on both ends sized to accept 1 inch and 1/2 inch nominal copper tubing. The fitting is intended for use in pressure piping systems carrying potable water, HVAC fluids, and other compatible media under applicable design conditions.

• ✅ Material: Lead-free copper alloy (NSF/ANSI 61 and 372 compliant)
• ✅ Connection Type: Copper tube (cup) x copper tube (cup) – solder joint
• ✅ Compliance: ASME B16.22 and MSS SP-104
• ✅ Pressure Rating: Up to 200 psi (when properly soldered and tested)
• ✅ Temperature Range: 0°F to 250°F (water service with lead-free solder)

Applications

Used in potable water distribution, hot water recirculation, and closed-loop hydronic heating systems, this reducing coupling allows for the reduction of pipe size within a single run. It is typically installed in branch connections, fixture rough-ins, and riser transitions where flow demand or space constraints require a change in pipe diameter.

Installation Practices

To ensure a code-compliant joint, tube ends must be reamed, cleaned, and fluxed prior to assembly. The use of lead-free solder is mandatory for potable water systems. After soldering, all joints must be pressure-tested per local code requirements. This fitting is not intended for use with press-connect systems or compression fittings.

Code Note

Federal legislation and all major U.S. plumbing codes mandate the use of lead-free copper fittings in potable water systems. This reducing coupling complies with those requirements, making it suitable for use in all jurisdictions.

Summary of Key Features

• ✅ Lead-Free Wrot Copper Construction – Safe for potable water applications
• ✅ ASME B16.22 Compliant – Conforms to dimensional and performance standards
• ✅ Compact, One-Piece Design – Enables efficient transitions between line sizes

The 1 inch x 1/2 inch Copper Reducing Coupling is a precision-manufactured fitting engineered for soldered copper systems where a durable, leak-resistant reduction in line size is required. It supports long-term performance in pressurized plumbing and mechanical systems.