Type 21 Single Mechanical Seal for Marine
Standard single spring mechanical seal for general industrial pumps. Balanced design for pressures to 300 PSI.
Function
Seals pump shafts using spring-loaded carbon face against tungsten carbide stationary seat.
Specifications
| Specification | Value |
|---|---|
| Shaft Diameter Range | 0.75 - 4.5inches |
| Seal Face Material | Carbon vs Tungsten Carbide |
| Secondary Seal | Viton O-Ring |
| Spring Type | Single Wave Spring |
| Maximum Pressure | 300PSI |
| Maximum Temperature | 400°F |
Typical Lifespan: 2-5 years depending on process conditions