Rotary joint can be define to:
- Coupling – a mechanical sealing device used to connect two shafts together at their ends for the purpose of transmitting power, including flexible couplings
- Rotary union – a coupling for passing fluid and gas through a rotating joint
- Slip ring assembly, used to send electrical power and signals across a rotating connection
- Waveguide rotary joint, used to send microwave power and signals across a rotating connection
- Integrated Truss Structure#Solar alpha rotary joint, in the International Space Station.
Jiujiang Ingiant Technology rotary joints are available with two different balanced and microlapped sealing assemblies:
- O Seal (Standard Sealing) with carbon graphite to carbide seals for application with filtered water.
- N Seal (Heavy duty sealing) with carbide to carbide seals for poor filtrated water or abrasive fluids.
- Fluid pressure over 8 bar is allowed only when the fluid is cool water at max temperature 125°F (50°C). Do not use the unions at max application limits without consulting from Ingiant.