- Compounded to withstand a wide range of pressure conditions
- Normally used as hydraulic cylinder or large ram press seals to 3,500 psi / 242 bar
- Successfully used for slow-moving equipment to 8,000 psi / 552 bar, and static applications to 30,000 psi / 2,070 bar on specially adapted equipment
- Withstands dilute acidic and alkaline solutions, aliphatic alcohols and hydrocarbons, salts, and solutions of aromatics and solids in concentrations under 80%
Not recommended for use with very strong oxidizers, highly concentrated acids or bases, pure aromatic compounds, esters, ketones, automotive brake fluid, or steam.
Recommended tolerances and finishes:
- Shaft hardness: 30 Rockwell C (minimum)
- Groove length (axial): Height of U-seal plus 10% of cross section (0.032 minimum)
- Dynamic surface finish: 10 to 20 RMS Tolerance: ±0.003 (maximum)
- Static surface finish: 60 RMS (maximum) Tolerance: ±0.005 (maximum)