BB4 Horizontal Single-Casing (Ring-Section) Multistage Pumps
(VMB04 Series)
The VMB04 series pumps are horizontal, single-casing, top suction and discharge, centerline-supported, radially split, ring-section multistage high-pressure boiler feedwater pumps, classified as API 610 BB4 type.
Product Features
Customized for power plant boiler feedwater, industrial high-pressure water supply, and oilfield water injection
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Independent R&D building upon international design concepts and manufacturing experience
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Excellent hydraulics utilizing CFD and ANSYS software
03
Internationally advanced, representing a new generation of high-efficiency and energy-saving product
04
Specifically designed for extreme conditions such as high temperature and pressure
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Equipped with high-temperature limiting devices to effectively address vibration caused by thermal expansion
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Pressure-bearing middle and discharge sections are forged, ensuring safety and reliability through advanced processes
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Shrink fitting between impellers and shaft enhances rotor rigidity and reduces vibration
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Stage-by-stage impeller positioning avoids cumulative errors and thermal deformation effects
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Staggered keyways for uniform torque transmission; staggered vanes for reduced resonance
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Axial forces efficiently balanced via a combined balancing drum and balancing disc structure
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Overall design balances high efficiency with adaptability to harsh conditions, ensuring long-term stable operation through precision manufacturing and structural optimization
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Product Introduction
Performance Range
Standard
Performance Range
Flow Rate (Q)
25~900 m³/h
Head (H)
140~2400 m
Rotational Speed (n)
1480, 2980 rpm
Design Pressure (P)
15.0, 26.0 MPa
Operating Temperature (T)
-80℃ to +210℃
Standard
Standard
API 610 12th Edition Centrifugal Pumps for Petroleum, Petrochemical, and Natural Gas Industries
Applications
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Petroleum Processing, Production, and Transportation
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Coal Chemical Processes
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Petrochemical and Chemical Processes
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Metallurgy
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Oilfield Water Injection
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Boiler Feedwater
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Water Supply and Treatment
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General Industry
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