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Flowserve BX Metal Bellows Seal

Flowserve BX Metal Bellows Seal

Product Brand

Flowserve

 

Type

Mechanical Seals

 

SubType

Metal Bellows Seals

 

About this product

BX Series balanced metal bellows seals are engineered to drive exceptional, long-term equipment reliability and lower energy consumption. They provide exceptional reliability in corrosive and non-corrosive fluids, especially fluids that crystallize or coke in atmospheric conditions. The BX Series is fully compliant with API 682 Type B requirements. Available in single and dual seal configurations.

 

Features and Benefits

  • Longer service life via 0.20 mm (0.008 inch) thick standard welded bellows for maximum resistance to corrosion, shaft vibrations and centrifugal forces

  • Optimal performance is attained by selecting from three standard seal face balances; the BXQ seal is high balanced for flashing hydrocarbon applications

  • Increased maintenance intervals due to a self-cleaning rotating bellows that replaces the need for springs and dynamic elastomers to lessen clogging vulnerabilities

  • Maintain the performance benefits of self-cleaning rotating bellows in dual pressurized Arrangement 3 seals with the BXB seal’s unique ID pressurized seal face balance

 

Specifications

API 682

Pressure: up to 27.6 bar (400 psi)

Temperature: -40°C to 204°C (-40°F to 400°F)

Speed: up to 23 m/s (75 fps)

Sizes: 12.3 to 127 mm (0.483 to 5.000 inches)

 

Configurations

BXQ High balance low emission hydrocarbon design for specific gravities down to 0.45 with multi-port flush.  Standard API 682 Type B Arrangement 1 seal.

BXB Inner bellows designed for ID pressurization with barrier fluid. Standard API 682 Type B Arrangement 3pressurized dual seal.

BXLS Designed to international standard DIN EN 12 756 L1k for use in DIN pumps.

Arrangement 1 single seal (Common Piping Plans 11, 13, 23, 32, 62) BX BXQ BXLS

Arrangement 2 unpressurized dual wet seal (Common Piping Plans 52) BX/BX

Arrangement 2 unpressurized dual seal with dry running backup (Common Piping Plans 72, 75, 76) BXQ/GSL

Arrangement 3 pressurized dual wet seal (Common Piping Plans 53A, 53C) BXB/BX

Arrangement 3 pressurized dual wet seal (Common Piping Plans 53B, 54) BX/BX

 

Industries

Chemicals

  • Basic (Organic & Inorganic)

  • Petrochemicals

Water

  • Water Management

Oil & Gas

  • Downstream Processing

General Industries

  • Pulp & Paper

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