Rod Seals
Rod seals are the most important component in a cylinder application. Operating in the harshest service conditions, if the rod seal fails, fluids leak into the operation which endangers both performance and safety.
Crucial factors for any rod seal include:
- It operates as a dynamic seal within its inner diameter, while it’s static along the outer diameter.
- Changes in the rod surface and fluctuations in fluid temperature directly affect the rod seal.
- It often experiences the greatest pressure variations, or spikes, in the system.
J Royal offers numerous rod seal options, based on the system’s pressure level range and the fluid compatibility.
UNLOADED U-CUP
U-cups seal both outside and inside diameters, and are also popular for the small gland space. More 
LOADED U-CUP
Loaded U-cups offer greater low pressure sealing on both outside and inside diameters. More
PREMIUM LOADED U-CUP
Two integrated seals allow premium loaded u-cups to provide greater low pressure sealing. More
SPRING ENERGIZED
In extreme conditions where conventional elastomeric seals are unsuitable, rely on these PTFE seals. More
BUFFER
Buffer seals allow fluid to flow around the seal to protect rod seals from pressure spikes. More
