| Rotary | Silicon, Carbide, Carbon. |
| Secondary | Ceramic |
| Metal Parts | SS-316, SS-304, Monel, Alloys-20 |
| Spring | SS-316, Hast-C, Alloy-20 & Spring Steel OR SS-304 Covered Teflon Tube |
| Secondary Seal | PTFE Bellow, Gasket |
| Shaft Diameter | 10mm to 100mm |
| Pressure | 10 Bar (Kg/cm²) |
| Temperature | 30° C to 120° C |
| Shaft Speed | up to 4000 rpm |
R21
- It is a Seal similar to type M021 in Design with Replaceable Dynamic Ring.
- This Permits easy Removal Replacement of the Dynamical Ring.