Ground joint fittings supply a convenient threaded fitting to connect two lengths of hose, or a single length to a male or female threaded (NPT) outlet.
The female ground joint consists of a female hose end, wing nut and female spud.
The female spud has NPT threads to accept the NPT threads of a rigid connection or male NPT nipple.
By replacing the female spud of a ground joint coupling with a double or male spud, hose to hose ground
joint connections or hose to rigid connections are simplified. Double spuds for hose to hose connections
are threaded NPS male X NPS male. (GJ wing nut is also NPS). For hose to rigid connection, the male
spud is threaded NPS male X NPT male.
Application
Ground joint fittings are secured with an interlocking clamp,widely used for heavy-duty applications such as steam,
air supply for construction, roadbuilding, and drilling applications.
Material
Zinc plated carbon steel or malleable iron

Ground joint couplings