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- Cangzhou, Hebei Province, China
A straight-through connector with internal threads at both ends, used to join two sections of externally threaded pipe or pipe nipples. Available in types such as full couplings and half-couplings, it is suitable for small-bore piping systems in instrumentation, gas, liquid, and general industrial applications.
Manufactured with advanced CNC equipment and proven processes, our flanges, pipe bends, and fittings deliver accurate dimensions, stable sealing performance, and dependable installation across demanding industrial applications.
Standards: GB/T 14383-2021; ASME B16.11-2021 for export projects.
Structure/Ends: Straight coupling; female threads at both ends; specify full coupling or half coupling and thread type (e.g., NPT).
Pressure Ratings: Threaded ends: Class 2000, 3000, 6000; Socket-weld ends: Class 3000, 6000, 9000.
Threads: ASME B1.20.1 for NPT; project-specified standards for domestic 60° sealing pipe threads.
Materials: Carbon steel, stainless steel, or alloy steel forgings; orders must specify nominal size, end type, pressure rating, material grade, and inspection requirements.
Ordering/Acceptance: Confirm nominal size, Class, end type (socket-weld/threaded), thread standard, mating pipe wall thickness, and material; verify socket dimensions or thread gauges, heat treatment, marking, and material certification.
