1/4 inch Stainless Steel Coupling Female x Female

1/4 inch Stainless Steel Coupling – Threaded F/F for High-Pressure Applications

The 1/4 inch Stainless Steel Coupling is designed to provide a robust connection between male-threaded pipe sections in systems where corrosion resistance and mechanical strength are critical. Precision-machined internal NPT threads ensure reliable sealing and alignment in demanding fluid and gas transport systems.

Engineering Features

• Connection Type: 1/4 inch Female NPT x 1/4 inch Female NPT – complies with ANSI/ASME B1.20.1 threading standards
• Material: Type 304 or 316 Stainless Steel – offering resistance to rust, scale, and aggressive media
• Construction: One-piece forged body or seamless stainless steel tube per ASTM A182/A276 standards
• Operating Pressure: Typically rated for up to 1500 psi WOG; always confirm based on specific alloy and wall thickness
• Temperature Range: Withstands extreme temperatures from -20°F to over 400°F depending on sealant used

Applications

This coupling is commonly installed in high-pressure hydraulic systems, steam lines, process piping, chemical handling, compressed air systems, and utility water circuits. Ideal for both industrial and commercial environments where exposure to corrosive agents or high operating loads is expected.

Installation Guidelines

Thread sealant or PTFE tape must be applied to male threads prior to tightening to ensure a leak-proof seal. Avoid over-torque to prevent thread deformation or galling—tighten using hand tools to the torque range specified by fitting and pipe manufacturer. Not recommended for use in systems requiring soldered or welded joints.

Standards & Compliance

• Material certifications available upon request (ASTM A182 F304/F316)
• Threading per ASME B1.20.1 (taper pipe threads)
• Lead-free options compliant with NSF/ANSI 61 and 372 standards (when required for potable water applications)

Did You Know?

Unlike galvanized steel or brass fittings, stainless steel maintains full structural integrity in high-salinity or chemical exposure environments—making it a preferred material for marine, pharmaceutical, and food-grade systems.

For installations where mechanical strength, chemical resistance, and dimensional accuracy are non-negotiable, the 1/4 inch Stainless Steel Coupling offers a professional-grade solution built for long-term service life under pressure.