Flowserve’s CBR metal bellows seals is a rotating metal bellows provides reliable sealing without shaft packing hang-up or fretting in general service and ANSI chemical pumps. Flowserve’s CBR metal bellows seal is designed to handle all ranges of corrosive applications with different base metallurgies available. Centroid Loaded Face Attachment improves seal life by preventing face distortion that is caused by pressure and temperature. The seal ring is easily and economically replaced.
Features
- Rotating bellows design provides best centrifugal force action to keep particles from settling between the bellows convolutions.
- Slim cross section allows the CBR to fit into 5/16″ stuffing boxes.
- No dynamic gaskets eliminate shaft packing fretting and seal face hang-up.
- Centroid loading face attachment prevents distortion caused by different thermal expansion rates of the face and holder materials.
- Built-in hydraulic balancing lowers heat generation and energy consumption.
- Easy to repair at any Flowserve authorized serve center.
Operating Parameters
| Maximum Pressure | 300 psig |
| Maximum Temperature | up to 400°F |
| Surface Speeds | up to 75 ft/sec |
| Shaft Sizes | .750 through 5.500″ |
Materials of Construction
| Bellows | AM-350, Hastelloy C, 20 Stainless Steel |
| Rotating Face | Carbon, Silicon Carbide, Tungsten Carbide |
| Stationary Seat | Ceramic, Silicon Carbide, Tungsten Carbide |
CBR Seal Brochure
lit_cbr_data
Single, rotating metal bellows design
