Our general-purpose Type 21 mechanical seal has become the industry standard for OEM designers.
Automatic adjustment compensates for abnormal shaft-end play, run-out, primary ring wear and equipment tolerances.
The Type 21 is ideal for use in centrifugal, rotary and turbine pumps, compressors, chillers and other rotary shaft equipment. It is also commonly used by the wastewater and water systems industries for applications such as waste treatment, potable water and HVAC.
| John Crane, Inc. | |
|---|---|
| Product Category | Mechanical Seals |
| Product Number | Type 21 |
| Product Name | General-duty Elastomer Bellows Shaft Seal |
| Mechanical Seal Type | Single |
| Seal Design | Elastomeric Bellows |
| Seal Application | Pump |
| Shaft Diameter | 0.2500 to 4 inch (6.35 to 102 mm) |
