Skip to Content
Stainless Steel Socket Weld Union — High-Pressure Pipe Fittings
Stainless Steel Socket Weld Union

Stainless Steel Socket Weld Union

Stainless steel socket weld unions are heavy-duty, three-piece fittings designed to connect pipes in high-pressure systems. By utilizing a socket weld connection, they provide a permanent, leak-proof seal while the union assembly allows for easy disconnection of the piping for maintenance or cleaning without the need to cut the pipes.

Technical Specifications

Fitting Type Socket Weld Union (3000# / 6000#)
Size Range 1/8" to 4"
Material Stainless Steel (ASTM A182)
Standards ASME B16.11 / MSS SP-83

Available Material Grades

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

Common Applications

  • High-Pressure Systems: Reliable joining for hydraulic and steam lines.

  • Industrial Maintenance: Enables rapid disassembly of process equipment like pumps and valves.

  • Chemical Processing: Safe, leak-proof connections for aggressive or toxic fluid handling.

  • Food & Beverage: Hygienic, easily cleanable joints for food-grade processing pipelines.

  • Offshore & Marine: Corrosion-resistant unions for shipboard and underwater infrastructure.