Hydraulic Seal is an agent, which prevents leakage of oil from the hydraulic elements and protects the systems from dust/dirt. The major function of the seal is to maintain pressure, prevent loss of fluid from the system and to keep out contamination in the system to enhance the working life and functional reliability over a longer period. The bottom of the drill hole provides the hydraulic seals, by the beginning of a layer of low-permeability backfilling material or by hydraulic packers. The hydraulic seal is another effective method of sealing the oil into a compartment within the gas turbine. The hydraulic seal relies on a trough to be filled with oil, the seal fins on the opposing component are dipped into the oil and thus create the seal. Hydraulic seals are used on low-speed areas of the engine.

Hydraulic Set Cements are generally used for casting or potting applications. This material possesses minimum shrinkage and withstands high temperatures.

Hydraulic shock and sway suppressors are suitable for use on piping systems or equipment when unrestrained thermal movement must be allowed, but which must be restrained during impulsive or cyclic disturbance. The settings are available to absorb the continuous thrust resulting from safety valve blow-off or pipe rupture. It is available in various sizes.

Hydraulic Shut-Off Fitting is ideal for use on sealed bearings where high grease pressures are not permitted such as water pumps and anti-friction bearings. It prevents over-lubrication and blowing out of bearing seals.