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2. Rotary union - Wikipedia

   en.wikipedia.org/wiki/Rotary_union

   The housing has an inlet port, which is a threaded port to which the hose supplying the medium will be attached. The rotary union may also have an outlet port, if the same joint is being used both to supply fluid to a roll and to remove fluid from the roll. In smaller rotary unions the housing is stationary.

3. Marine loading arm - Wikipedia

   en.wikipedia.org/wiki/Marine_loading_arm

   A marine loading arm is an alternative to direct hose hookups that is particularly useful for larger vessels and transfers at higher loading rates and pressures. [2] Controlled manually or hydraulically, a loading arm employs swivel joints and can, to some extent, follow the movement of a moored vessel.

4. Swivel (drill rig) - Wikipedia

   en.wikipedia.org/wiki/Swivel_(drill_rig)

   A Swivel is a mechanical device used on a drilling rig that hangs directly under the traveling block and directly above the kelly drive, that provides the ability for the kelly (and subsequently the drill string) to rotate while allowing the traveling block to remain in a stationary rotational position (yet allow vertical movement up and down the derrick) while simultaneously allowing the ...

5. Rotary joint - Wikipedia

   en.wikipedia.org/wiki/Rotary_joint

   Rotary joint may refer to: Coupling , a mechanical 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 through a rotating joint

6. Hose reel - Wikipedia

   en.wikipedia.org/wiki/Hose_reel

   A hose reel is a cylindrical spindle made of either metal, fiberglass, or plastic and is used for storing a hose. The most common styles of hose reels are spring driven (which is self retracting), hand crank, or motor driven. Hose reels are categorized by the diameter and length of the hose they hold, the pressure rating and the

7. Swivel - Wikipedia

   en.wikipedia.org/wiki/Swivel

   The biggest concern about anchor swivels is that they might introduce a weak link to the rode. With most swivels the shaft is nice and tidily embedded in the other half of the swivel as in the example of the stainless steel anchor swivel shown here. When used in marine applications, and worse in tropical climates, this is a cause for corrosion ...