SRD Wiper seal, double-acting O-Ring energized scraper which prevents the ingress of mud or other contaminants to enhance effective system service life,Secondary sealing , easy installation in small diameters.
| Materials | Operating Condition | |
| Temperature ℃ | Speed m/s | |
| PTFE | -45~200 | 15 |
| PU | -35~100 | 2 |
