Category Archives for Hydraulic Accessories
Hydraulic welding application
A hydraulic system can be used for holding and positioning the parts to be welded during a welding operation. It is a typical example of how fluid power can be used in manufacturing and production operations, to reduce the overall … Continue reading
High wire hydraulically driven overhead tram
Most overhead trams require haulage or tow cable to travel up and down steep inclines. A 22-passenger, 12 000 pound (around 5000 kg) hydraulically powered and controlled tram is shown in Figure 9.2. It is self-propelled and travels on a … Continue reading
Hydraulic accumulator as shock absorber
One of the most important industrial applications of accumulators is in the elimination or reduction of high-pressure pulsations or hydraulic shocks. Hydraulic shock (or water hammer, as it is frequently called) is caused by the sudden stoppage or deceleration of … Continue reading
Hydraulic QUAD-O-DYN Seals
The Quad-O-Dyn®, also manufactured by Minnesota Rubber, is a special form of the Quad-Ring. The Quad-O-Dyn differs from the Quad-Ring in configuration (fig. 7-17), is harder, is subject to greater squeeze, and is made of a different material. The Quad-O-Dyn® … Continue reading
Hydraulic QUAD-Rings
The Quad-Ring® seal is a special configuration ring packing, manufactured by the Minnesota Rubber. As opposed to an O-ring, a Quad-Ring® seal has a more square cross-sectional shape with rounded corners (fig. 7-16). The Quad-Ring® seal design offers more stability … Continue reading
Hydraulic O-Rings
An O-ring is doughnut-shaped. O-rings are usually molded from rubber compounds; however, they can be molded or machined from plastic materials. The O-ring is usually fitted into a rectangular groove (usually called a gland) machined into the mechanism to be … Continue reading
Hydraulic V-Seals
The V-ring is one of the most frequently used dynamic seals in ship service although its identification, installation, and performance are probably most misunderstood. Properly selected and installed, V-rings can provide excellent service life; otherwise, problems associated with friction, rod … Continue reading
Hydraulic T-Seals
The T-seal has an elastomeric bidirectional sealing element resembling an inverted letter T. This sealing element is always paired with two special extrusion-resisting backup rings, one on each side of the T. The basic T-seal configuration is shown in figure … Continue reading
Water Cooled Hydraulic Heat Exchanger
Figure 7.26 is an illustration of a common type of water-cooled heat exchanger used in hydraulic systems. This is typically a shell and tube-type heat exchanger. The cooling water is pumped into the heat exchanger and flows around the tube … Continue reading
Air Cooled Hydraulic Heat Exchanger
Figure 7.25 shows an air-cooled heat exchanger. The hydraulic fluid to be cooled is pumped through the tubes that are finned. As the fluid flows through the tubes, air is blown over them. This takes away the heat from the … Continue reading