As pumps are an integral part of any industrial operation, it is important to know the different types of pumps, their functionality, and standards to ensure they perform optimally. General classification of pumps include dynamic pumps and positive displacement pumps, and it is important to choose the right type for a particular industry to use.
Types of Dynamic Pumps
One of the large groups used among industry is dynamic pumps type especially centrifugal pump (radial flow pump). This type of pump utilizes centrifugal force to move fluids, thus permitting these pumps to displace liquids over a substantial reach.
Centrifugal Pumps Standards
Centrifugal pumps to be operationally reliable are designed and fabricated to certain standards:
- API 610 (Standard: Oil, Gas, and Petrochemical) Tag: Oil and Gas
- ISO 5199 and ANSI Standards:Applicability: General-purpose pumps customized to customer specific requirements
API 610 Centrifugal Pumps Classification
There are some sub-classifications of API 610 centrifugal pumps, such as OH (Overhung), BB (Between Bearing) and VS (Vertical Suspended) pumps.
OH (Overhung) Pumps
Impellers are on one end of the shaft on overhung pumps. They are categorized as:
- OH1 : A foot-mounted, horizontally oriented.
- OH2: Mounted on the center line for enhanced thermal stability.
- OH3 – OH6: Pumps with vertical installation for compact designs — inline suction and discharge for efficient transport.
BB (Between Bearing) Pumps
BB pumps are designed for high-pressure and high-flow applications and are classified into the following types.
- BB1: Bipartite design with large flow and pressure ratings.
- BB2: Dual top suction and discharge configuration for specialized applications
- Above: BB3: Multi-impeller design for extreme pressures and flow rates.
- BB4 & BB5: Multistage pumps, BB5 is for ultra-high pressure systems
VS (Vertical Suspended) Pumps
Vertical suspended pumps (Also known as VD pumps): VD pumps are installed vertically in tanks or reservoirs. These pumps are great for when you are short on space.
- VS1, VS2, VS3: Differentiated by type and quantity of impellers, customized to meet distinct industrial requirements.
Essential Features for Selecting the Pump
These are some key factors to consider when choosing the right pump:
- The type of fluid: Compatibility with the pump material/design.
- Pressure, Flow Rate: Compatible System Functions
- Environmental conditions: Analyzing the installation-related conditions like space or temperature.
- Related Standard: API 610, ISO 5199, ANSI
Applications by Pump Type:
- OH Pumps: For the medium pressure application.
- BB Pumps: Best for high-pressure and high-flow settings.
- VS Pumps: Ideal for tight areas for water treatment, oil, & gas industries.
Conclusion
Pumps are invaluable instruments used by various industrial sectors to address their specific operational requirements. Their manufacturing is guided by standards such as API 610, ISO 5199, and ANSI, to ensure reliable and efficient operation. In conclusion, by delving into pump types, classifications, and standards, you can make an informed decision when choosing a pump for your specific application, leading to optimized system performance and operational success.
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