CMB21/B21
Tandem metal bellow seal
Performance capabilities:
● Pressure： MPa 0~3.0
● Temperature：-120~400 ℃
● Speed：≤50m/s
Descriptions:
√ Ideal for cryogenic and high temperaturemedium with higher safety requirements
√ Secondary seal as a safety seal, preventing media directly leaking into the atmospheric
√ Rotary bellows to prevent medium particles from depositing between wave plates , self-cleaning function
Features:
√ Welded metal bellows, rotary
√ Compaction installation
√ Flexible graphite as secondary seal
Recommended applications:
√ Refining & petrochemical
√ Coal chemical
√ Chemical
Piping plans:
√ Process side:API682 PLAN 11, 13, 14, 21, 23, 32,
√ Between seals:API682 PLAN 52, 53A, 53B, 53C, 54,55
√ Atmospheric side:API682 PLAN 61, 62,
Materials and configurations:
|
Categories |
Components |
Standard Materials |
Optional Configurations （Depending on specific working conditions or applications） |
|
Seal rings |
Primary ring |
Carbon graphite |
TC |
|
Mating ring |
SiC |
TC |
|
|
Flexible elements |
Metal bellows |
Inconel718 |
Hast.C |
|
Metal parts |
Sleeve ,gland |
316L |
2205/17-4PH |
|
Secondary seal |
Rectangular ring |
Flexible graphite |
/ |
| Categoriesا | Components | Standard Materials | Optional Configurations (Depending on specific working conditions or applications) |
| Seal rings | Primary ring | Carbon graphite | TC |
| Mating ring | SiC | TC | |
| Flexible elements | Metal bellows | Inconel718 | Hast.C |
| Metal parts | Sleeve,gland | 316L | 2205/17-4PH |
| Secondary seal | Rectangular ring | Flexible graphite |
/ |