INDUSTRIAL PUMPS

CENTRIFUGAL PUMPS

A centrifugal pump is a mechanical device that uses a rotating impeller to transfer fluid from one place to another. It operates based on the principle of centrifugal force, which causes the fluid to move outward from the center of rotation. Centrifugal pumps are among the most commonly used types of pumps in various industrial, commercial, and domestic applications due to their simplicity, efficiency, and versatility. Here are the key features and characteristics of centrifugal pumps:

1. Impeller Design: The central component of a centrifugal pump is the impeller, which is typically a rotating disk with curved blades or vanes. The impeller is responsible for creating a flow of fluid by imparting kinetic energy to it.
2. Radial Flow: Centrifugal pumps generate fluid flow in a radial or outward direction from the center of the impeller to the outer edges. As the fluid moves outward, it gains velocity and pressure.
3. Inlet and Outlet: Centrifugal pumps have an inlet (suction) and an outlet (discharge). Fluid is drawn into the pump through the suction inlet and expelled through the discharge outlet.
4. Low to Medium Pressure: Centrifugal pumps are typically used for applications that require low to medium pressure, although high-pressure variations are available for certain applications.
5. Flow Rate Variability: The flow rate produced by a centrifugal pump is affected by the speed of the impeller and the size and design of the impeller and casing. Flow rate can be adjusted by changing the impeller diameter or adjusting the pump’s speed.
6. Non-Positive Displacement: Unlike positive displacement pumps, which move a fixed volume of fluid with each stroke, centrifugal pumps are non-positive displacement pumps. This means their flow rate varies with changes in resistance (head) within the system.
7. Efficiency: Centrifugal pumps are known for their high efficiency, especially when operating near their design point. They are capable of moving large volumes of fluid with relatively low power consumption.
8. Simplicity: Centrifugal pumps are relatively simple in design and have fewer moving parts compared to some other pump types, which can make them easier to install and maintain.
9. Primarily for Liquids: They are primarily used for pumping liquids, including water, chemicals, oil, and wastewater. They are less suitable for handling highly viscous fluids or those with solid particles.
10. Sealing: Centrifugal pumps typically use mechanical seals or packing to prevent fluid leakage at the shaft. Seal selection depends on the type of fluid being pumped.
11. Applications: Centrifugal pumps are used in a wide range of applications, including water supply, irrigation, heating and cooling systems, wastewater treatment, chemical processing, oil and gas production, food and beverage production, and many others.
12. Cavitation Control: Centrifugal pumps can be prone to cavitation (the formation of vapor bubbles due to low pressure), which can damage the pump and reduce efficiency. Proper design and operation practices are essential to control cavitation.

Centrifugal pumps are versatile and widely used due to their reliability, efficiency, and adaptability to various fluid-handling needs. They are selected based on factors such as flow rate, head, fluid properties, and system requirements. The specific design and configuration of centrifugal pumps can vary, including single-stage, multi-stage, and self-priming variations, to suit different applications.

END SUCTION PUMPS

End suction centrifugal pumps are known for their simplicity, efficiency, and versatility. They are used in a wide range of applications, including water supply and distribution, irrigation, heating and cooling systems, industrial processes, and more. These pumps are relatively easy to install and maintain, making them a popular choice for many fluid-handling needs.

It’s important to select the right pump size, materials, and specifications to match the specific requirements of the application, as different end suction centrifugal pumps are designed for various flow rates, pressures, and fluid types.

• Griswold
• Peerless
• Curflo
• Labour Taber
• Allwiler
• Blackmer System One
• Goulds G&L
• Grundfos
• Gusher
• Hayward Gordon
• MP
• Peerless
• Pioneer Pump

HORIZONTAL SPLIT CASE PUMPS

Horizontal split-case pumps are known for their efficiency, reliability, and ability to handle high flow rates and moderate to high-pressure applications. They are commonly used in various industries, including water supply and distribution, municipal water treatment, irrigation, industrial processes, HVAC (heating, ventilation, and air conditioning), and more.

The split casing design of these pumps makes them ideal for applications where maintenance and serviceability are critical because it allows for easy access to the impeller and other internal components without the need to disconnect piping or fully disassemble the pump.

• Paco
• Peerless

VERTICAL INLINE PUMPS

Vertical inline centrifugal pumps are popular in commercial and industrial settings due to their compact design, ease of installation, and versatility. They are often selected for applications where space is limited, and a reliable and efficient fluid-handling solution is needed. Unlike horizontal pumps that are positioned on a horizontal plane, vertical inline pumps have a vertical orientation, with the pump’s motor and impeller aligned along a common axis.

• Grundfos
• Weinman

SELF-PRIMING PUMPS

A self-priming pump is a type of centrifugal pump that has the ability to automatically evacuate air and prime itself without the need for external priming assistance. In conventional centrifugal pumps, priming (the process of filling the pump and suction line with liquid) is typically required before the pump can effectively move fluid. Self-priming pumps, however, are designed to overcome this limitation and can start pumping fluid even when the pump and suction line are not completely filled with liquid. It’s important to note that the self-priming capability of a pump can vary depending on its design and size. Different self-priming pumps may have different priming capabilities, so it’s essential to select a pump that suits the specific requirements of your application.

• Gorman Rupp
• Pioneer Pump
• Curflo
• Labour Taber
• MP

VERTICAL TURBINE PUMPS

A vertical turbine pump is a type of centrifugal pump that is specifically designed for applications where the water source is located below ground level or where the pump needs to lift water from a considerable depth. The most prominent feature of a vertical turbine pump is its vertical design. Unlike horizontal centrifugal pumps, where the motor and impeller are positioned on a common horizontal axis, vertical turbine pumps have a vertical motor and shaft that drives one or more impellers. When more than one impeller is needed due to head requirements the impeller stages are stacked on top of each other along the pump shaft. Each impeller stage helps lift water from a certain depth, and the combined effect of these stages enables the pump to lift water from deep wells or water sources, generating high pressure.

• Peerless
• National Pump Company
• Simflo
• Afton

SLURRY / SOLIDS HANDLING PUMPS

Slurry pumps are specialized centrifugal pumps designed to handle abrasive and viscous slurries containing high concentrations of solids. Slurries are mixtures of solids suspended in a liquid, and they can vary widely in composition and density. Slurry pumps are engineered to efficiently transport these mixtures, making them essential in industries where the movement of abrasive or thick materials is required.

• GPM Eliminator
• Hayward Gordon
• Wilfley

HORIZONTAL PUMPING SYSTEMS

High-pressure centrifugal pump designed to handle challenging conditions encountered in upstream and downstream oil and gas applications. These pumps are typically used for various tasks, including injection of chemicals or fluids into oil wells, water injection for reservoir pressure maintenance, and other high-pressure fluid transfer requirements in the oilfield.

• Hoss
• Tonkaflo

SUBMERSIBLE PUMPS

A submersible pump is a type of pump designed to be fully submerged or immersed in the fluid it is intended to pump. These pumps are typically electrically driven and are commonly used for various applications, including water supply, groundwater dewatering, wastewater handling, and more. Submersible pumps are highly efficient and are especially suitable for situations where the pump needs to operate below the water surface.

• GPM Eliminator
• Barnes
• BJM
• Tsurumi
• Nagle
• Grindex
• Grundfos
• Homa

EXTENDED SHAFT / SUMP PUMPS

An extended shaft pump, often referred to as a “sump pump,” is a specialized type of pump designed for removing water or other fluids that accumulate in a sump, pit or basin. These pumps are used to prevent flooding and water damage by pumping out excess liquid to a designated discharge point when the water level in the sump pit reaches a certain height. Operation can either be continuous, manual or automatic.

• Carver
• GPM Eliminator
• Gusher
• Finish Thompson
• Hayward Gordon
• Labour Taber
• Vertiflo

SEALLESS PUMPS

A sealless pump, also known as a magnetic drive pump, is a type of pump that does not use traditional shaft seals or packing to prevent fluid leakage from the pump’s casing. Instead, sealless pumps rely on a unique design that eliminates the need for these sealing mechanisms, providing a safer and more reliable solution for handling corrosive, toxic, or hazardous fluids.

• Finish Thompson
• Iwaki

DRUM PUMPS

A specialized type of pump designed for the safe and efficient transfer of fluids from containers such as drums, barrels, and similar storage containers. These pumps are particularly useful for handling a wide range of liquids, including chemicals, oils, solvents, lubricants, and various industrial and agricultural fluids.

• Flux

AXIAL FLOW PUMPS

An axial flow pump, also known as a propeller pump, is a type of centrifugal pump designed to move fluid in a direction parallel to the pump’s shaft. Unlike radial flow centrifugal pumps, which move fluid radially outward from the center of the impeller, axial flow pumps propel fluid in a linear or axial direction along the pump shaft. The impeller of an axial flow pump typically consists of a series of curved blades or vanes that are designed to generate a low-pressure gradient, promoting axial flow. These blades are usually set at an angle to the pump shaft, which helps move the fluid in the desired direction.

• Hayward Gordon

REGENERATIVE TURBINE PUMPS

A type of centrifugal pump that is designed to handle low to moderate flow rates at high pressures. These pumps are characterized by their unique impeller design, which differs from the typical radial flow impeller found in most centrifugal pumps. Regenerative turbine pumps are commonly used in various applications where high pressure and relatively low flow rates are required.

• MTH

SIDE CHANNEL PUMPS

A type of centrifugal pump that is specifically designed to handle low flow rates at high pressures. These pumps are characterized by their unique impeller design and operation principle, which enables them to generate high-pressure discharges even with relatively small flow rates.

• Sero

POSITIVE DISPLACEMENT PUMPS

A positive displacement pump is a type of pump that moves a fixed volume of fluid through the pump with each cycle of operation. Unlike centrifugal pumps, which rely on the centrifugal force to move fluid, positive displacement pumps physically trap and displace the fluid. These pumps are known for their ability to provide consistent and precise flow rates, making them ideal for applications where accurate dosing, metering, or maintaining constant pressure is crucial. Here are the key features and characteristics of positive displacement pumps:

1. Fixed Volume per Cycle: Positive displacement pumps move a specific and consistent volume of fluid with each cycle of operation. This feature ensures accurate and repeatable flow rates.
2. Variety of Designs: Positive displacement pumps come in various designs, including piston pumps, diaphragm pumps, gear pumps, screw pumps, vane pumps, and peristaltic pumps, each with its own mechanism for displacing fluid.
3. Self-Priming: Many positive displacement pumps are self-priming, which means they can create suction to draw fluid into the pump, even when the pump is not initially filled with liquid.
4. Reversible Flow: Flow direction in positive displacement pumps can often be reversed by changing the direction of the pump’s rotation or altering the valve configuration, allowing for bidirectional flow.
5. High Pressure Capabilities: Positive displacement pumps are capable of generating high pressures, making them suitable for applications requiring precise pressure control.
6. Suitable for Viscous Fluids: These pumps are effective at handling viscous liquids, including oils, syrups, pastes, and slurries, where centrifugal pumps may struggle.
7. Metering and Dosing: Positive displacement pumps are commonly used in applications requiring precise metering or dosing of fluids, such as chemical injection, pharmaceutical manufacturing, and food processing.
8. Limited Shear: Many positive displacement pumps have minimal shear effects on the fluid being pumped, making them suitable for shear-sensitive materials like certain pharmaceuticals and biological products.
9. Maintenance: Maintenance of positive displacement pumps typically involves routine inspections, lubrication, and replacement of wear parts such as seals and valves. These pumps are known for their durability and reliability.
10. Cavitation Resistance: Positive displacement pumps are less prone to cavitation (the formation of vapor bubbles due to low pressure) compared to centrifugal pumps, as they operate by physically displacing fluid rather than relying on high-speed impellers.
11. Wide Range of Materials: Positive displacement pumps are available in various materials of construction, including metals, plastics, and elastomers, to ensure compatibility with the fluid being pumped.

Common applications for positive displacement pumps include chemical processing, oil and gas production, food and beverage production, pharmaceutical manufacturing, wastewater treatment, hydraulic systems, and more. The specific type of positive displacement pump chosen for a particular application depends on factors such as the type of fluid, flow rate requirements, pressure conditions, and industry standards.

AODD PUMPS

An air-operated double diaphragm (AODD) pump is a type of positive displacement pump that uses compressed air as the power source to move diaphragms within the pump housing. These diaphragms alternate their movement, creating a pumping action that draws in and expels the fluid being pumped. AODD pumps are versatile and suitable for a wide range of applications due to their ability to handle various fluids, including corrosive, abrasive, viscous, and shear-sensitive liquids.

• Wilden
• Almatec
• Verder

DOSING / METERING PUMPS

A chemical dosing pump, also known as a chemical metering pump or a chemical injection pump, is a specialized pump designed to accurately and precisely deliver a predetermined quantity of chemicals or additives into a fluid stream. These pumps are commonly used in various industrial, water treatment, and chemical processing applications where the controlled and consistent addition of chemicals or reagents is essential.

• Flowmotion
• Grundfos
• Iwaki
• Neptune

PERISTALTIC PUMPS

A peristaltic pump, also known as a tubing pump or hose pump, is a type of positive displacement pump that uses a flexible tube or hose as its pumping mechanism. Peristaltic pumps operate on the principle of peristalsis, which is the rhythmic contraction and relaxation of muscles to propel fluids through a tube or passage. In a peristaltic pump, a rotating rotor with rollers or shoes compresses and relaxes the flexible tubing, creating a flow of fluid within the tube.

• Hayward Gordon
• Allweiler
• Verder

SCREW PUMPS

A screw pump is a type of positive displacement pump that uses one or more rotating screws or helical rotors to move fluid from the pump’s inlet to its outlet. Screw pumps are known for their ability to provide a smooth and steady flow of fluid, making them suitable for various industrial applications, particularly those involving high-viscosity or non-Newtonian fluids.

• Allweiler
• IMO
• Zenith
• Ampco

INTERNAL GEAR PUMPS

An internal gear pump is a type of positive displacement pump that uses a set of interlocking gears to transfer fluid from the pump’s inlet to its outlet. Internal gear pumps are known for their efficient and reliable performance in various industrial applications.

• Blackmer
• Curflo
• Oberdorfer
• Tuthill

LOBE PUMPS

A rotary lobe pump, is a type of positive displacement pump that uses rotating lobes or gears to transfer fluid from the pump’s inlet to its outlet. Lobe pumps are designed to handle a wide range of fluids, including those with high viscosity, solids content, and shear sensitivity.

• LobePro
• Verder

RECIPROCATING PISTON / PLUNGER PUMPS

A plunger pump, also known as a reciprocating plunger pump, is a type of positive displacement pump that uses a reciprocating motion of a piston or plunger to transfer fluid from the pump’s inlet to its outlet. Plunger pumps are characterized by their ability to generate high pressure and are commonly used in applications where precise pressure control and high-pressure delivery are essential.

• Hydra-cell
• Kerr
• NOV
• Clyde-Union

PROGRESSIVE CAVITY PUMPS

A progressive cavity pump, also known as a PC pump or a helical rotor pump, is a type of positive displacement pump designed to move fluid from the pump’s inlet to its outlet using a helical rotor that rotates inside a flexible elastomeric or rubber stator. Progressive cavity pumps are particularly well-suited for handling viscous, shear-sensitive, abrasive, and high-solid-content fluids.

• Seepex
• Allweiler
• Continental
• Liberty Process

SLIDING VANE PUMPS

A sliding vane pump is a type of positive displacement pump that uses sliding vanes or blades inside a cylindrical rotor to transfer fluid from the pump’s inlet to its outlet. These pumps are known for their simplicity, reliability, and self-priming capabilities, making them suitable for various industrial, commercial, and mobile applications.

• Blackmer

ECCENTRIC DISC PUMPS

An eccentric rotary pump is a type of positive displacement pump that utilizes an eccentrically mounted disc or rotor to transfer fluid from the pump’s inlet to its outlet. These pumps are valued for their ability to handle a wide range of fluids, including viscous, abrasive, and shear-sensitive materials, making them suitable for various industrial applications.

• Mouvex