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Reciprocating Pumps
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Reciprocating pumps move liquids by a plunger or piston that travels back and forth inside a cylinder. Regulating the speed of the drive controls the flow. There is no head loss by throttling as in a centrifugal pump. These pumps are often used for high or very high pressures. Reciprocating pumps are often used as metering pumps because of constancy of flow rate. Adjusting the RPM of the driver can easily change the flow rate. Products & Services
Explosion proof pumps prevent internal or external explosions by enclosing parts that could ignite either the transfer media or the surrounding atmosphere.
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Piston pumps and plunger pumps are reciprocating pumps that use a plunger or piston to move media through a cylindrical chamber. The plunger or piston is actuated by a steam powered, pneumatic, hydraulic, or electric drive. Piston pumps and plunger pumps are also called well service pumps, high pressure pumps, or high viscosity pumps.
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Metering pumps are precision pumps, which dispense an exact amount of material. They are used in a variety of chemical dosing and metering applications.
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Mechanical vacuum pumps and systems contain devices such as pistons, claws, scrolling spirals, and diaphragms to isolate and compress air.
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Learn more about Mechanical Vacuum Pumps and Systems
Gas compressors and gas compressor systems are used to circulate gas through a process, enhance conditions for chemical reactions, provide inert gas for safety or control systems, recover and recompress process gas, and maintain correct pressure levels by either adding and removing gas or vapors from a process system.
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Learn more about Gas Compressors and Gas Compressor Systems
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Topics of Interest
OVERVIEW
Pumping of liquids is almost universal in chemical and petrochemical processes. The many different materials being processed require close attention to selection of materials of...
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9.1 Introduction
Hydraulic-powered downhole pumps are powered by a stream of highpressure power fluid (water or oil) supplied by a power fluid (PF) pump at the surface and sent to a downhole pump or...
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Today, two main types of pump dominate the scene in the chemical process industries: positivedisplacement pumps and impeller pumps. For pumping applications that involve highly volatile fluids, the...
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OVERVIEW
Types of Control Systems
Early pipeline systems depended upon manual control and the use of tanks to maintain a pipeline system in balance. On long pipelines that required multiple pump...
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The hydraulic geometry or shape of a pump stage can in principle be chosen for given values
of the other independent variables in Eqs. 34 or 35 so as to optimize the resulting performance;
for...
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