SYMMETRICAL U-CUP
U-Cups are popular due to the small gland space required. They are usually specified in low speed, low pressure environments for both pneumatic and hydraulic cylinders. The seal is obtained by means of the flared, flexible lips coming in contact with the rod or cylinder wall. Clearance is provided at the heel for minimum friction. Seal effectiveness is increased as internal pressure increases against the inner surface of the lips.
Since the shape is symmetrical it is possible this type of piston seal could also be used as a rod seal if required.
T-SEAL
RT Dygert stocks one of the world's largest inventories of O-Rings and seals. More 
CAPPED T-SEAL
RT Dygert stocks one of the world's largest inventories of O-Rings and seals. More
URETHANE CAP
Between the Capped T-Seals and the
O-Ring loaded seal in terms of
surface sealability. More
PTFE
This low cost PTFE piston seal offers numerous different layout and material options for different applications. More
LOADED U-CUP
This is a single direction piston seal, meaning it can only seal if the pressure is from one direction. More
O-RING LOADED
This dual action piston seal is designed for applications where maximum sealability is required. More
ASYMMETRICAL UNLOADED U-CUP
The asymmetrical unloaded U-Cup is designed to have both a static and a dynamic side. More
GROOVED
Grooved seals are bi-directional seals that are specially designed to deal with a wide range of sealing pressures. More
SYMMETRICAL U-CUP
This Symmetrical U-Cup can be used as either a piston or rod seal and accommodates a small gland space. More
