Flowserve’s BXRH seals provide sealing capabilities at extreme temperatures in challenging refinery and petrochemical services. When pumping services push beyond temperature limits of elastomers, the BXRH seals offer reliable sealing in both single and dual seal configurations. BRXH seals are fully compliant with API 682 Type C requirements.
Flowserve’s BXRH seals offer a stationary bellows that provides high speed capability and tolerates out-of-square misalignment of the pump shaft to the seal chamber face that can occur as the pump grows thermally.
Standards
Features
Operating Parameters
Pressure | up to 20.7 bar (300 psi) |
Temperature | -73°C to 427°C (-100°F to 800°F) |
Speed | up to 46 m/s (150 fps) |
Shaft Sizes | 21.8 to 128.9 mm (0.857 to 5.073 inch) |
Industrial Applications
Configurations
Arrangement 1 single seal | Common Piping Plans 11, 13, 23, 32, 62 |
Arrangement 2 unpressurized dual wet seal | Common Piping Plans 52, 55 |
Arrangement 2 unpressurized dual seal with dry running backup | Common Piping Plans 72, 75, 76 |
Arrangement 3 pressurized dual wet seal | Common Piping Plans 53A, 53B, 53C, 54 |
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