SD 121

Model DS 121 is a single-acting, compact, symmetrical profile seal with an elastomer O-ring. The function of the O-ring is to maintain the tension of the collar even when there is no pressure in the system.
The seal has a sharp-edged seal, which facilitates scraping of the surface and prevents fluid accumulation at the heel of the seal.
- In back to back configuration, it can be used as a double acting seal.
- Seal suitable for both piston rod and piston.
- Ease of assembly.
It can be machined in both polyurethane and elastomers. See materials section.