1/4 inch Brass Union Female x Female

1/4 inch Brass Union – Female x Female, Lead-Free

The 1/4 inch brass union with female x female configuration is used for connecting two sections of threaded pipe while allowing for disassembly without cutting. This union fitting is machined from lead-free brass and is designed for use in water, air, fuel, and hydraulic systems where serviceability and system maintenance access are required.

Field-Ready Specifications and Performance

Manufactured to industry-standard tolerances, this union ensures precise thread alignment and mechanical integrity in low- to moderate-pressure applications. Functional highlights include:

• ✅ Female NPT Connections Compatible with standard 1/4 inch National Pipe Taper threads for sealed joints in liquid or gas systems.
• ✅ Two-Piece Union with Central Nut Allows for convenient disconnection at service points or equipment tie-ins without disturbing surrounding piping.
• ✅ Lead-Free Brass Construction Compliant with NSF/ANSI 61 and 372 for potable water use.
• ✅ Corrosion-Resistant Material Suitable for hot and cold water lines, as well as HVAC, fuel, and air system use in non-aggressive environments.
• ✅ Machined Seating Surfaces Designed to minimize leak potential when properly torqued and sealed.

Product Specifications

• Material: Lead-free brass
• Nominal Size: 1/4 inch
• Connection Type: Female NPT x Female NPT
• Construction: Three-piece union with central compression nut
• Compliance: NSF/ANSI 61 & 372 certified; suitable for potable water systems

Installation Considerations

Pipe threads should be properly prepared using PTFE tape or thread sealant rated for the system media. Align threads to prevent cross-threading, and tighten with appropriate hand tools until fully engaged and leak-free. Do not overtighten. For critical applications, pressure testing is recommended after installation.

Common Use Cases

This fitting is often specified in plumbing, mechanical, and instrumentation applications that require system disassembly for maintenance or component replacement. Common environments include water heater tie-ins, air compressor lines, meter installations, and isolated plumbing sections where access is required without cutting pipe.

Code and Compliance Insight

Under the Safe Drinking Water Act and related state regulations, all fittings used in potable water systems must meet lead-free standards. This union meets those requirements and is suitable for use in residential, commercial, and light industrial plumbing systems.

The 1/4 inch brass female union provides a durable and code-compliant connection point that facilitates system maintenance and retrofitting. Engineered for reliability, it supports pressure-rated performance across a wide range of building and mechanical systems.