3/4 inch x 1/2 inch Copper Flush Bushing Fitting x Copper

3/4 inch x 1/2 inch Copper Flush Bushing – Lead-Free Reducing Fitting for Soldered Copper Piping Systems

The 3/4 inch x 1/2 inch Copper Flush Bushing is a solder joint reducing fitting used to transition between different copper tube sizes within a continuous piping system. Manufactured from lead-free wrought copper (typically C12200), this fitting is suitable for use in potable water distribution, hydronic heating systems, and general utility piping.

Its flush profile allows for compact installation where space constraints or clean internal transitions are required. Designed in accordance with ASME B16.22 standards, the fitting provides reliable dimensional compatibility with standard Type L and Type M copper tube sizes.

Technical Specifications

• Nominal Size: 3/4 inch x 1/2 inch
• Material: Wrought Copper, Lead-Free (ASTM B75, Alloy C12200)
• Connection Type: Sweat x Sweat (Cup Ends for Soldering)
• Fitting Type: Flush Bushing, Reducing
• Standards: ASME B16.22, NSF/ANSI 61 & 372 (Safe Drinking Water Act compliant)

Installation Guidelines

Surfaces should be cleaned and prepped using a wire brush or abrasive cloth. Apply approved lead-free flux to both mating surfaces and heat uniformly to achieve a continuous solder joint. Use only lead-free solder for potable water applications. Follow local code requirements for pipe support, pressure testing, and allowable joint spacing.

Applications

This copper flush bushing is used in plumbing systems where size transitions are required within fittings such as tees, valves, or couplings. It is common in domestic water supply lines, heating branch piping, and compact mechanical assemblies where maintaining a smooth internal flow path is critical.

Material Considerations

Wrought copper offers excellent corrosion resistance, thermal conductivity, and long service life under varying pressure and temperature conditions. Flush bushings provide a minimal internal footprint, helping to reduce flow disruption and eliminate unnecessary pipe protrusions.