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Ground Joint Coupling

Ground Joint Coupling

Our ground joint couplings provide NPT-threaded fittings for high-pressure air, water, and steam applications. Available in plated steel, 316 stainless steel, and brass. Manufacturer in China.

How to choose: select spud type by connection target (equipment, pipe, or hose) and stem type by hose end configuration. NPT standard; BSP available upon request.


  • Ground Joint Coupling - Wing Nut
    Ground Joint Coupling - Wing Nut
    Ground joint fittings are designed for high pressure air or water (ie. Up to 500 psi) as well as steam (steam maximum 250 psi @ 450°F max) in plants, refineries, construction sites, or drilling applications.
  • Ground Joint Coupling - Female Spud
    Ground Joint Coupling - Female Spud
    Ground Joint female spud is included in the female hose coupling set. Purchase additional female spuds to convert additional equipment, pipe, and manifolds to ground joint wing nut thread.
  • Ground Joint Coupling - Hose Stem
    Ground Joint Coupling - Hose Stem
    Ground Joint Coupling-Hose Stem are to be installed by a fully trained assembler and are designed to be used with interlocking bolt clamps.
  • Ground Joint Coupling - Male Spud
    Ground Joint Coupling - Male Spud
    Ground Joint Male Spuds can be used to connect female ground joint hose couplings to threaded manifolds, valves, and equipment. Thread the NPT side to any pipe threaded connection and then swivel a female ground joint wing nut onto the other end.
  • Ground Joint Coupling - Double Spud
    Ground Joint Coupling - Double Spud
    Ground Joint Double Spuds are used to connect hoses with female ground joint couplings together. Each side has the ground joint wing-nut thread and special polymer seal.
  • Ground Joint Coupling - Male Stem
    Ground Joint Coupling - Male Stem
    Detailed information about ground joint coupling- male stem including its application and recommended hose attachment.
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