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Stainless Steel Union (F/F) — 3-Piece Pipe Fitting
Stainless Steel Union (F/F)

Stainless Steel Union (F/F)

Stainless steel unions are essential three-piece fittings used to connect two pipes securely while allowing for easy disassembly and maintenance. The female-to-female threaded design ensures a tight, leak-proof seal without the need for pipe rotation during installation, making it ideal for confined industrial spaces.

Technical Specifications

Fitting Type Union (3-Piece Design)
Size Range 1/8" to 4"
Material Stainless Steel (ASTM A182 / A351)
Connection Female Threaded (NPT/BSP)

Available Material Grades

SS 304 / 1.4301 SS 304L / 1.4307 SS 316 / 1.4401 SS 316L / 1.4404

Common Applications

  • Plumbing Systems: Connects pipes securely while facilitating future repair or equipment replacement.

  • HVAC & Industrial Piping: Enables maintenance of pumps and valves by allowing section removal.

  • Chemical & Process: Safe, leak-proof joints for aggressive or high-temperature media.

  • Food & Beverage: Hygienic threaded unions for modular piping segments.

  • Marine Systems: Corrosion-resistant joining in shipboard plumbing and salt-air environments.