Working specifications: You should also consider your application’s maximum pressure level and the temperature in which the seal will be used.You can alter your seal selection by taking into account the required sealing technique. Sealing technique: Based on your application, you can choose from single lip, double lip, or multi lip hydraulic sealing.Function of the seal: Select one of the above mentioned seals based on their applications.Piston seal: Seals the cylinder bore and retracting piston, preventing oil flow.įollowing steps will help you select the right seal for your operations:.Head seal: Comprising of a backup ring and an O ring, this is a two piece seal and seals the system’s head to the cylinder wall.Bearing strips: Support the ram or piston under loads.Buffer seal: Secondary rod seal guards the rod from unexpected elevation of system pressure.Usually, a backup ring accompanies the U-cup, and it restrains the seal from thrusting. The prime rod seal is the U-cup, made of nitrile or urethane. Gland or rod seal: This seals the retracting ram or rod.Snap-in wiper seals are used in relatively moderate environments and lighter hydraulic operations. Press-in seals can be single lip, which cleans the retracting rod, or double lip, cleans the retracting rod and seals oil, preventing cosmetic leakage (or weeping). Wiper seals are of two types: Press-in and Snap-in. Wiper seal: This seal is used where the entry of contaminants like water, dirt or dust must be prevented.Whatever your operation, the Toyota forklift hydraulic seal kit you choose should provide you: These days, hydraulic systems, and their components, are available in different forms and sizes based on their functions. While the former type prevents fluid leakage from the cylinder to the exterior parts, the latter type prevents the flow of fluid in the cylinder head. These include hydraulic piston seals and hydraulic rod seals. This guide is to help you select the right seal for your hydraulic application.Ī blend of distinct seals is used to seal hydraulic systems. In addition to preventing brake fluid leakage from the cylinder, hydraulic seals should also be capable of enduring extreme temperatures, pivoting forces, and high pressures. It is a device that prevents the leakage or escape of fluids, and a hydraulic seal seals two surfaces in varying pressure conditions. Hydraulic functions are usually very demanding for seals.