DESCRIPTION

The BB3 type represent horizontally mounted, axially split, multistage, between-bearings pumps with double volute casing, designed in compliance with API 610 standard of the 11th edition.

APPLICATION

• Transportation of crude oil, petroleum products and liquefied gases
• Pressure boosting

TECHNICAL DATA

• Capacity range: 20 - 3700 m³/h
• Pressure head range: 150 - 1900 m/6200 feet (2800 m for high-speed arrangement)
• Pressure design: up to 275 bar (4000 psi)
• Rotation speed: up to 4500 rpm
• Pumped media temperature: - 80 … + 250 °C (480 °F)
• Specific gravity: over 0.70

DESIGN FEATURES AND ADVANTAGES

• Excellent suction capability due to double-suction first stage NPSH impeller.
• Back-to-back arranged impellers providing rotor axial balance and lowered wear of rotating elements.
• Symmetrical casing parts and centreline-located feet ensure uniform temperature expansion of the casing and stability in with high-temperature liquids.
• Specially designed pump stages, wear rings and bushings provide uniform pressure drop per mm throughout the pump width for uniform distribution of normal wear of the elements for increased reliability.
• High-strength casing of a compact size with single-row easy accessible bolting simplifies the maintenance operations.
• Extra heavy-duty rigid shaft with minimum deflection in operation to extend lifetime of bearings and mechanical seals.
• Various applicable options of the bearings solutions for high-pressure, high-capacity, and high-temperature applications.

SHAFT SEAL

• Application of a single and double mechanical seal of a standard cartridge type design is equally possible from John Crane, EagleBurgmann, Aesseal, TREM

SCOPE OF SUPPLY

• Pump according to API 610
• Drive: electric motor from SIEMENS, ABB, ELSIB and other manufacturers
• Bearings from the leading manufacturers
• Rotation speed: up to 4500 rpm
• Sensors, auxiliary systems
• Optional: fluid couplings and frequency invertors from Voith, ABB, Siemens and other manufacturers