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2. Hydraulic seal - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_seal

   This type of seal is exposed to movement. Rod seal: Is installed on the piston rod of a hydraulic cylinder. Prevents leakage of hydraulic fluid to the outside of the sealing system. Helps prevent contamination from entering the hydraulic system (in conjunction with a wiper seal). [3] [4] Piston seal: Is installed on the piston head.

3. Compression seal fitting - Wikipedia

   en.wikipedia.org/wiki/Compression_seal_fitting

   A single compression seal fitting may seal on a single or multiple elements. Sealing glands designed to seal on single elements consist of a body, cap, sealant and follower. When sealing on multiple elements, gland designs also include a seat and an anti-rotation pin to prevent wires or conductors from twisting and shearing.

4. Stuffing box - Wikipedia

   en.wikipedia.org/wiki/Stuffing_box

   Creating a proper plunger alignment is critical for correct flow and a long wear life. Stuffing box components are of stainless steel, brass or other application-specific materials. Compression packing is rigorously tested to ensure effective sealing in valves, pumps, agitators, and other rotary equipment.

5. Hydraulic machinery - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_machinery

   Flare fittings, are metal to metal compression seals deformed with a cone nut and pressed into a flare mating. Face seal, metal flanges with a groove and o-ring seal are fastened together. Beam seals are costly metal to metal seals used primarily in aircraft. Swaged seals, tubes are connected with fittings that are swaged permanently in place ...

6. Labyrinth seal - Wikipedia

   en.wikipedia.org/wiki/Labyrinth_seal

   Labyrinth seals are also found on pistons, which use them to store oil and seal against high pressure during compression and power strokes, as well as on non-rotating shafts. In these applications, it is the long and difficult path and the formation of controlled fluid vortices plus some limited contact-sealing action that creates the seal.

7. Hydraulic cylinder - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_cylinder

   A hydraulic cylinder is the actuator or "motor" side of this system. The "generator" side of the hydraulic system is the hydraulic pump which delivers a fixed or regulated flow of oil to the hydraulic cylinder, to move the piston. There are three types of pump widely used: hydraulic hand pump, hydraulic air pump, and hydraulic electric pump.