Axially Split Multistage Between-Bearings
Process Pumps, type BB3 (API 610)
Pump series: AMG, NPS, 2NPS
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
Onshore / offshore production of oil, gas and condensate
Water supply (sea and produced water)
Fuel gas purification
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
