1/2 inch x 3/8 inch Brass Flared Reducing Adapter OD Flare x Male

1/2 inch x 3/8 inch Brass Flared Reducing Adapter – Lead-Free Fitting for Gas and Water Connections

The 1/2 inch x 3/8 inch brass flared reducing adapter is used to transition between two different flare sizes in fluid or gas applications. Engineered for use in compression-type systems, this adapter is commonly installed in water supply lines, fuel gas systems, and mechanical equipment hookups where NPT-to-flared transitions are required.

Technical Characteristics and Benefits

This adapter is manufactured to comply with current plumbing and mechanical codes. It provides a secure, vibration-resistant seal without the need for soldering or additional sealant at the flare seat. Key attributes include:

• ✅ Lead-Free Brass Construction Meets NSF/ANSI 61 and 372 for potable water use and complies with current lead-free requirements in regulated systems.
• ✅ Flare-to-Flare Reduction Enables smooth transitions between 1/2 inch and 3/8 inch OD flare tubing using standard 45° flare fittings.
• ✅ Corrosion Resistance Brass material is resistant to dezincification and suitable for use with potable water, air, fuel, or inert gases.
• ✅ Mechanical Reliability Designed for high-torque, leak-free performance in pressurized applications without the need for gaskets or sealant at flare mating surfaces.

Specifications

• Material: Lead-free brass
• Connection Type: 1/2 inch Flare x 3/8 inch Flare
• Standard: Conforms to SAE J512 and ASME B16.26 specifications
• Usage: Approved for potable water, LP/natural gas, and HVACR systems

Installation Requirements

This reducing adapter is designed for use with flared copper or aluminum tubing. Ensure flare nuts and tubing ends are clean, undamaged, and properly seated. Apply torque per fitting size guidelines using a flare nut wrench. Do not apply thread sealant to flared mating surfaces; use sealant only on NPT threads when applicable.

Application Use Cases

Commonly installed in gas appliance hook-ups, refrigeration lines, water heater supply lines, and fixture branches, especially when adapting between differing tube sizes. The flare configuration allows for a high-integrity seal in systems subject to vibration or thermal cycling.

Regulatory Compliance

Lead-free brass is mandated by the Safe Drinking Water Act (SDWA) for use in all potable water applications. This fitting is certified accordingly and may also be used in fuel gas distribution systems in compliance with applicable codes (e.g., NFPA 54/ANSI Z223.1).

The 1/2 inch x 3/8 inch brass flared reducing adapter delivers dependable system performance for professionals working in water, fuel gas, and HVAC installations. Designed for secure connections and long service life, it meets the mechanical and material standards required for modern plumbing and piping systems.