Conclusion of reciprocating pump. Their robust nature and adaptability make them ideal for .

Conclusion of reciprocating pump. Hicks: A comprehensive textbook covering various pump types, including reciprocating pumps, with detailed discussions on design, operation, and applications. It describes the main parts of a reciprocating pump including the piston, cylinder, crank mechanism, suction pipe and delivery pipe. Purpose of This Manual. Williams: This book offers a thorough explanation of oil and gas production techniques, including the use of reciprocating pumps for Apr 22, 2023 · Conclusion Both reciprocating and centrifugal pumps have their unique advantages and disadvantages. Learn how they function and their role across various industries. One moment, pleasePlease wait while your request is being verified May 30, 2025 · Discover the inner workings, benefits, and uses of reciprocating pumps in different mechanical systems and industries. Here a cam plate is used to guide the plunger to move in a reciprocating motion and a specified motor is separately operated to run the cam plate. Pressure Jan 22, 2025 · A reciprocating pump is a positive displacement pump that moves fluids using a back-and-forth motion driven by a piston, plunger, or diaphragm. A plunger pump operates using the reciprocating motion of plungers or pistons. This pump is a widely used positive displacement pump in many industries where high delivery pressure is required. , width 20 in. 2. However, reciprocating pumps offer precise control over flow rate and are reliable in dealing with high-pressure applications. The reciprocating pump is a positive displacement pump where a particular amount of liquid is collected in an enclosed volume. Rotodynamic pump: Dynamic action of the fluid movement is due to the mechanical energy imparted into the system by a rotating element. The document outlines the theory and operation of reciprocating pumps, which convert mechanical energy into hydraulic energy through positive displacement. This motion allows for precise control over the volume of fluid displaced, making these positive displacement pumps ideal for applications requiring exact fluid flow rates and high pressures. Fluid Viscosity For highly viscous fluids, reciprocating pumps or specialized rotary pumps like lobe or screw pumps are often preferred. Commonly used in industries like oil, chemical, and water treatment. , plunger or piston) to pump the fluid from one area to another. Gear pumps are more efficient and require less maintenance than reciprocating pumps, but they are also more expensive. This comprehensive educational guide aims to explore the intricate dynamics of these pumps, delving deeper into their operational principles Exploring the dynamics and differences between reciprocating and rotary positive displacement pumps reveals a detailed landscape of mechanics, application suitability, and performance characteristics. Change one part, and the Positive displacement pumps are a vital component in various industries, including manufacturing, agriculture, oil and gas, and many others. It helps to regulate and stabilize the pressure, ensuring a continuous and steady flow of fluid. This document provides a study of a reciprocating pump. The conclusion emphasizes the importance of pumps Conclusion Reciprocating pumps have much to offer in terms of improved performance, efficiency and energy consumption, particularly in low flow, high pressure differential applications where Centrifugal Pump is a type of axial flow pump. Positive Displacement Pumps Reciprocating Pumps Reciprocating pumps are a type of positive displacement pump that uses a back-and-forth (reciprocating) motion to transfer fluids. Suitable for high-pressure, low-flow applications. e. Conclusion: The working principles of the Reciprocating Pump and Reciprocating Compressors are the same but the usage of both is different. Dismantling instructions include removing casing covers, rotors 15 hours ago · Engineering Mechanical Engineering Mechanical Engineering questions and answers A reciprocating pump, weighing 150 lb, is mounted at the middle of a steel plate of thickness 0. When selecting a pump, it is important to consult with a pump expert to ensure the best pump is selected for the application. As a positive displacement pump, it operates by trapping a specific amount of fluid and then mechanically forcing that volume into the discharge line. It details the construction styles, definitions of static head, suction head, and delivery head, as well as operating instructions for conducting an experiment with the pump. What is a Reciprocating Pump? A reciprocating pump is a positive displacement pump that uses a piston or plunger to move fluid. In conclusion, reciprocating pumps offer distinct advantages in terms of precision, high-pressure capabilities, versatility, and durability. This class of pumps is further di ded into reciprocating or piston type and rotary type. In this article, we will discuss the working principle, different types, applications, advantages, and disadvantages of reciprocating pumps. In this comprehensive Dec 13, 2022 · In conclusion, the validation of the reciprocating positive displacement pump determined it was accurate in the simulation of arterial blood flow in human ocular, human fingertip and skin surface, human cerebral, and rodent spleen organ systems. 5 in. Their ability to handle high pressure, control fluid flow precisely, and work with various fluid types makes them indispensable. Positive displacement pumps consist Oct 20, 2011 · But, a very interesting paper was presented on this topic at the International Pump Users Symposium this year in Houston. The document also includes sections for observations Definition of Pump What is Pump? Types of Pump, Uses, Working & Application [with Pictures] :- Pumps can be defined as the devices which are used to pump fluid and they can be submerged in the fluid or placed external to fluid. " The main conclusion of the paper was that come amount of cavitation is almost unavoidable. Conclusion on Reciprocating Diaphragm Pumps At Houston Dynamic Service, we have extensive knowledge about all kinds of pumps and reciprocating equipment. The plunger is reciprocated with the help of a cam plate. These pumps are known for their ability to provide precise and controllable flow rates, making them suitable for applications where accuracy is crucial. From food processing to oil wells, pumps play a critical role in the production and maintaining our standard of living. Pumps are categorized on the basis of method of displacement such as impulse pumps, positive displacement pumps, gravity pumps, velocity pumps, valve less pumps and Nov 6, 2023 · Explore the advantages and disadvantages of centrifugal pumps. It classifies pumps based on mechanisms (centrifugal and reciprocating), fluid types (water, oil, gas), and discusses their components, selection criteria, applications, advantages, and disadvantages. One type of positive displacement pump that is commonly used in industrial plants is a reciprocating pump. G. We provide high quality maintenance and repair for reciprocating diaphragm pumps and many others. The title of the paper was "Cavitation in Reciprocating Positive Displacement Pumps. However, they can also be more complex and require more maintenance compared to centrifugal pumps due to the reciprocating action and the presence of valves and seals. Feb 20, 2024 · The Powerful Reciprocating Pumps: Pushing Fluids with Precision II JAY SHRI KRISHNA II A Reciprocating Pump is a Positive Displacement Pump, meaning it traps a fixed volume of fluid and physically moves it through a system with each reciprocating (back-and-forth) motion of a piston or plunger. Unlike centrifugal pumps, it delivers fluids in pulses but ensures a steady flow rate even under varying pressures, making it ideal for precise fluid dosing, pressure management, and industrial fluid Discover reciprocating pumps, their types, applications in metal finishing, and how to choose the right pump. Oct 27, 2025 · A reciprocating piston pump is a specialized machine designed to move fluids by repeatedly displacing a fixed volume. Rotary positive displacement pump: The liquid is trapped in a volume and pushed out against Mar 14, 2024 · In conclusion, when choosing between a gear pump and a reciprocating pump, it is important to weigh both their advantages and disadvantages. This can be utilized for various Dec 15, 2024 · A reciprocating pump is a type of positive displacement pump that moves fluids through a chamber by using the reciprocating motion of a piston or plunger. Feb 21, 2023 · Conclusion: Why Choose Advanced Reciprocating Pumps? With high-pressure capabilities, energy efficiency, remote monitoring, and corrosion resistance, advanced reciprocating pumps are ideal for demanding industrial applications. In this article, we will learn all the basic details of the Reciprocating Pump along with definition, parts, function, working procedure, discharge flow rate, work done, power, slip, derivation for acceleration head, etc. Unlike centrifugal pumps that rely on Sep 24, 2022 · For more information visit Kapilsteels Conclusion On the whole, centrifugal pumps provide a more cost-effective and energy-efficient solution for many applications. RECIPROCATING PUMPS The term reciprocating is defined as back-and-forth motion. Explore the different types of pumps, such as centrifugal pumps, and Reciprocating pumps are a type of positive displacement pump. This guide delves into the mechanics, applications, and advantages of reciprocating pumps, providing readers with a comprehensive understanding of their significance in modern engineering. Keep reading to learn more and more! The reciprocating pumps are classified in five ways: Nov 3, 2024 · Reciprocating pumps are powerful machines used across various industries, from water treatment to oil and gas, due to their ability to generate high pressure with precision. These pumps are used in applications requiring high-pressure fluid delivery, such as hydraulic systems, oil refineries, and chemical plants. It works by drawing fluid during the suction stroke and discharging it during the delivery stroke. These flow pulses occur because the pump’s liquid chamber or chambers are repeatedly filled with liquid on the inlet stroke and then expelled on the discharge stroke. Pipes carry the fluid, but pumps supply the energy to move it. Rotary Pumps What's the Difference? Reciprocating pumps and rotary pumps are two common types of pumps used in various industries. 3. Unlike centrifugal pumps, which rely on rotational motion, reciprocating pumps use a back-and-forth (reciprocating) motion to move fluid. Both types of pumps have their own advantages and disadvantages, and should be chosen based on the application and requirements. , and length 100 in. Depending on the application, one may be more suitable than the other May 17, 2023 · Learn how vacuum pumps work! Our comprehensive guide explains the principles behind positive displacement, momentum transfer, and entrapment pumps. These pumps are known for their high pressure capabilities and are often used in applications that require Mar 14, 2022 · Types of reciprocating pumps are placed in different categories and several factors play an essential role in choosing the best reciprocating pump based on your application. The plunger is reciprocated with the help of a scotch yoke mechanism. It discusses the different types of 1. Also, you should constantly monitor and inspect the pump to ensure that it operates effectively and prevents potential issues caused by pulsation. Choosing the right pump for a specific application requires careful consideration of factors such as flow rate, viscosity, pressure, and cost. 1 Dual side water pumping system To design and develop dual side water pumping system using scotch yoke mechanism. In this Pump system, the piston reciprocates using the liquid-push and increasing its hydraulic power/energy. The Reciprocating Pumps: These pumps work by the repeated back-and-forth, reciprocating (stroke) movement of either a piston, plunger, or diaphragm. Reciprocating plunger pumps are also more versatile than positive displacement pumps, as they can handle a wide range of fluids and flow rates. 16. , clamped along two edges as shown in Fig. THE conversion of reciprocating motion into rotary motion in heavy-loaded reciprocating pumps is currently performed by a crankshaft or an eccentric mechanism. Learn the benefits of reciprocating technology. The key performance parameters of centrifugal pumps are capacity, head, BHP (Brake horse power), BEP (Best efficiency point) and specific speed. "Petroleum Production Engineering: Principles and Practices" by T. Jun 2, 2022 · Reciprocating Pump: Definition, Components, Types, Working principle, Applications A reciprocating pump is a device that converts mechanical energy into hydraulic energy by absorbing fluid into a cylinder. Reciprocating pumps, while more expensive upfront and in maintenance, provide essential benefits in high-pressure and precise-flow May 20, 2024 · In conclusion, reciprocating pumps stand as stalwarts of reliability and versatility across a myriad of industrial applications. Proper sizing of a reciprocating pump can greatly affect the operating parameters of the machine, while sealing arrangements can be configured based on process fluid, lubrication requirements, and environmental leakage concerns. It is discharged using pressure for the required application. It explains the working mechanism of how the reciprocating motion of the piston draws fluid in through the suction valve and forces it out through the delivery valve. 1. It describes the key components of each pump type and lists the step-by-step processes for removing parts during dismantling and replacing them in the proper order during assembly. However, the American Institute of Chemical Engineers, its employees and consultants, its officers and directors, Equipment Testing Procedures Committee members, their employers, and their employers' officers and directors Pumps can be classified as: 1. Conclusion: Reciprocating pumps are a vital component in oil and gas operations, enabling the efficient and reliable movement of fluids throughout the production and processing chain. A reciprocating pump uses a back and forth motion to move processed liquid. They play a crucial role in moving fluids from one place to another, whether it’s transferring water in a municipal water supply system, pumping crude oil in an oil refinery, or dosing chemicals in a chemical processing plant. Unlike other pumps, reciprocating pumps use a back-and-forth motion, driven by pistons or plungers, to move fluids effectively. Their robust nature and adaptability make them ideal for Always consider your reciprocating pump as part of the wider flow control system to achieve optimal results. However, they also come with disadvantages like pulsation, maintenance requirements, noise and vibration, limited flow rates, and complexity. They are also easier to maintain. Nov 21, 2023 · Learn what a pump is and how a pump works with examples and illustrations. Read Also , types of pump Reciprocating pumps, also known as positive displacement pumps, operate by using a piston, plunger, or diaphragm to displace a fixed volume of fluid with each stroke. Article contain how to select pump, performance analysis, power estimation, NPSH estimation and also to create or complete calculation sheet, datasheet and specification sheet as a part of detail engineering and Safety procedures: Operating reciprocating pumps requires strict adherence to safety protocols to prevent accidents and ensure worker safety. Learn about types, advantages, applications, and maintenance tips. It is highly effective for high-pressure, low-flow applications and is commonly used in industries like oil and gas, chemical processing, and water treatment. Both the gear pump and the rotary screw pump used in this experiment fal Apr 23, 2023 · Reciprocating pumps are positive displacement pumps that use reciprocating motion to move fluids or gases. Components of Reciprocating Pump: Oct 14, 2022 · Here, the reciprocating motion of the plunger is the key function for the operation of the pump and as a result of this repeated action, thrust is developed inside the pump. This unique mechanism makes them ideal for applications that require controlled flow rates A reciprocating pump is a type of positive displacement pump that utilizes a piston or plunger to move fluids by reciprocating motion. Rotary Pumps: These pumps use the actions of rotating cogs or gears to transfer fluids, rather than the back-and-forth motion of reciprocating pumps. May 10, 2025 · The principle of a reciprocating pump involves the use of a piston or plunger to create suction and pressure that moves fluid through the pump. Apr 3, 2025 · Based on the principle of a piston or plunger reciprocating inside the cylinder, this pump builds up pressure to transport fluid. Reciprocating Pumps are essential mechanical devices used to transfer fluids in various industries May 10, 2025 · A reciprocating pump is a positive displacement pump that moves fluid using the back-and-forth motion of a piston or plunger. This Jul 7, 2023 · Reciprocating pumps are a type of positive displacement pump commonly used in various industries. Although these mechanisms performed well during recent decades, increasing mechanical problems arise due to the increasing pressure and displacement requirements partly accelerated by the shale gas revolution[1]. Centrifugal pumps and reciprocating pumps are two common types of pumps used in various industries. The liquid is alternatively drawn from the pump and filled into suction side of the cyliner. This mechanical action makes it effective for applications demanding consistent flow rates against significant resistance. One major limitation of reciprocating pumps is Reciprocating Pump: Applications, Working Principle, Advantages, and Disadvantages एक reciprocating pump एक प्रकार का positive displacement (PD) pump है, जिसे उद्योगों में fluid transfer के लिए व्यापक रूप से उपयोग किया जाता है। ये pumps कई सिस्टम Reciprocating pumps offer advantages such as self-priming capabilities, the ability to handle variable flows and pressures, and suitability for high-pressure applications. What is pump and pump basics are covered along with the definition, parts, it's functions, working principle, so many diagrams etc. Reciprocating Pumps: The Workhorses of Drilling and Well Completion Reciprocating pumps are essential components in the oil and gas industry, playing crucial roles in drilling operations and well completion. During operation of the pump, the plate is subjected to a harmonic force, F (t) = 50 sin (62 Dual side double-acting reciprocating water pump setup using the scotch yoke mechanism consists of two reciprocating pumps in which a plunger is provided for the pumping action. Figure 1 Centrifugal Pump. By this action the water is pumped with very high pressure and to various heads. Jul 3, 2025 · Unlike centrifugal pumps, which rely on kinetic energy to move fluids, reciprocating pumps use mechanical motion to transfer liquids in a controlled and precise manner. The document provides instructions for dismantling and assembling three types of pumps: a centrifugal pump, rotary screw pump, and piston pump. Operating on the principle of positive displacement, these pumps offer consistent flow even in high-pressure, low-flow applications. The reciprocating pump is a positive displacement pump, i. In this kind of pump, the piston moves forward & backward Double Acting Reciprocating Pump The reciprocating pump is a positive displacement pump, it operates on the principle of actual displacement or pushing of liquid by a piston or plunger that executes a reciprocating motion in a closely fitted cylinder. Let’s delve deeper into the components, working principle, and applications of this essential piece of machinery. Of course, both do have similar importance and advantages according to their working, and applications. Dynamic pumps consist of centrifugal, axial and mixed flow pumps. Since reciprocating pumps are common to many industrial applications, it is important for operators to understand how they work. They are used in a wide range of applications, including oil and gas, chemical processing, water treatment, and power generation. Reciprocating Pump vs. A reciprocating pump is a type of positive displacement pump that uses a reciprocating component (i. 2 1 Modularity of reciprocating positive displacement pumps 23 2 1 1 Pump construction kit 23 2 1 2 An overview of construction kit components 25 2 2 Drive and drive unit components for metering pumps 29 2 2 1 Drives and motors 30 2 2 2 Linear drive – Direct drives for reciprocating pumps 30 2 2 3 Rotating pump drives 33 2 2 3 1 Electromotive drives 33 2 2 3 2 Frequency inverter 38 2 2 3 3 Dec 17, 2011 · If equipment is driven by a high compression engine or if an electric motor system includes a variable frequency drive coupled to a reciprocating pump or compressor, it is a good idea to consult a qualified torsional vibration consultant to assure that the elastomeric coupling is properly selected to protect the system from harmful resonances. Jan 7, 2022 · In this article, you will learn what are different types of pumps? Explained with working, advantages, and applications with pictures [PDF]. This type was discussed in the previous chapter. Discover high flow rates, versatile applications, and considerations for suction lift and viscous fluids. Reciprocating pumps are a type of positive displacement pump that uses a piston, plunger or diaphragm to move fluid through a system. Because the piping and pumps work together, they must be thought of and designed as an integrated system. Reciprocating pumps, like rotary pumps, operate on the positive principle: that is, each stroke delivers a definite volume of liquid to the system. Some of the rotary type Positive displacement pumps, specifically reciprocating and peristaltic types, create pulsating flow that results in damaging vibration and pressure spikes. Reciprocating pumps, including diaphragm pumps, piston pumps, and plunger pumps, are essential tools in onshore oilfield operations. From the precise control offered by reciprocating pumps to the smooth, continuous flow provided by rotary types, each design has specific advantages and challenges, dictated by variables such as Oct 19, 2024 · Conclusion Pulsation analysis of the reciprocating pump is crucial to maintaining and optimizing the performance of the pump and piping system. Reciprocating pump: The liquid is trapped in a cylinder by suction and then pushed against pressure using mechanical energy. Reciprocating pumps work by using a piston or plunger to create a reciprocating motion, which draws in and pushes out the fluid. Reciprocating pump is a positive displacement pump where certain volume of liquid is collected in enclosed volume and is discharged using pressure to the required application. D. In conclusion, a reciprocating pump pressure vessel is an essential component in reciprocating pump systems. , initially, a small amount of liquid is transported into a chamber and physically displaced or forced with pressure by moving mechanical elements, reciprocating pumps are used to raise the energy level of the water. Their ability to deliver precise fluid control, withstand harsh "Pumps and Pumping Systems" by T. It has high pressure and low flow and is used for oil and gas industries, water treatment, and chemical processing. They operate by using a piston or plunger to create a reciprocating motion, which results in the flow of fluid. Depending on the design of the pump, the use of a single or multiple plungers may be used. A reciprocating pump is a positive displacement pump that uses a piston or plunger to move fluid through a system by reciprocating motion. Jul 1, 2018 · A reciprocating pump is a positive-displacement pump. Experts recommend considering the following factors when making a selection. serial. Chapter 1: What is the principle behind the operation of centrifugal pumps? This section delves into the basics of centrifugal pumps, encompassing their design, construction, and functional principles. Pumps can be arranged and connected in serial or parallel to provide additional head or flow rate capacity. This motion is similar to that of a bicycle pump, where the piston moves in and out to take in and expel air. It can handle highly viscous liquids quite efficiently. This document provides an overview of pumps, defining their function as hydraulic machines that convert mechanical energy into hydraulic energy. valve to protect the system from excessive pressures. . Sep 10, 2023 · In conclusion, the construction of rotary and reciprocating pumps varies greatly, and should be considered when selecting the correct pump for an application. What is a Centrifugal Pump? A centrifugal pump is a type of hydraulic mechanism that converts mechanical energy into hydraulic energy through the application of centrifugal force on the fluid May 30, 2025 · Learn about the design considerations, operational parameters, and maintenance strategies for reciprocating pumps in mechanical systems. A direct acting pump drives pumping element(s) through the reciprocating motion by use of an integral reciprocating engine (similar to a steam engine) to directly transfer engine reciprocating motion and power into work energy at the fluid end pumping element(s). Rotary Positive Displacement Pumps The defining feature of these pumps is that they have a rotating mechanism; this rotating mechanism creates a vacuum and it drives the fluid inside the pump. Key Features and Benefits: Jul 17, 2024 · Discover everything about screw pumps in our comprehensive guide. Explore the definition, advantages, and applications of reciprocating pumps. Oct 17, 2014 · Adding head and flowrate for pumps arranged in parallel vs. A positive displacement pump is a type of pump that operates by trapping a fixed amount of fluid and then forcing it into the discharge pipe. During the suction stroke, the piston moves back, creating a vacuum that draws fluid into the cylinder. 0 INTRODUCTION There are two main types of pumps namely the dynamic and positive displacement pumps. 1. Jan 9, 2025 · Reciprocating pumps play a crucial role in various industries, particularly in China, where rapid industrialization demands efficient fluid transfer solutions. The pump curves provide the operating window within which these parameters can be varied for satisfactory pump operation. The following parameters or terms are discussed in detail in this section. The working principle of centrifugal pump is to convert the Kinetic Energy of Impeller into Hydro-Dynamic or Dynamic Energy. Aug 5, 2024 · Discover the benefits, applications, and maintenance tips of reciprocating pumps in this comprehensive guide to high-pressure solutions. In the reciprocating pump it is the back-and-forth motion of pistons inside of cylinders that provides the flow of fluid. Learn about their differences and which Jun 24, 2020 · Positive Displacement pumps are mostly divided into two classes; Rotary and Reciprocating positive displacement pumps. Expert Insights and Application Examples The choice between reciprocating and rotary pumps depends heavily on the specific application and the fluid being pumped. Momentum is imparted to the fluid by dynamic action. This article is a note or manual for mechanical engineer where work as rotating engineer or where concern to apply reciprocating pump into the system. The reciprocating motion of the plunger is utilized for the pumping action. Jul 22, 2025 · In conclusion, the comparison of cost considerations between rotary and reciprocating pumps reveals that rotary pumps generally offer lower initial and maintenance costs, making them suitable for applications with continuous flow and moderate pressure requirements. The reciprocating action creates a pulsating flow, making them ideal for applications requiring controlled dosing or high-pressure fluid transfer. Compressors can be seen in our daily routine life but the reciprocating pumps are used for high-level operations so, they cannot be found in daily life. Feb 1, 2024 · In the realm of fluid dynamics within the construction industry, the choice between centrifugal pumps and reciprocating pumps is a critical decision that significantly influences the efficiency and cost-effectiveness of fluid-handling processes. This can be utilized for various applications like lubrication Introduction Every industry today requires a pump somewhere in its operation. In these cases pressure is developed by the dynamic action of the impeller on the fluid. The liquid fed to discharge side of the cylinder Abstract – The aim of the paper is to design and develop a double acting solar water pumping system using scotch yoke mechanism. Reciprocating pumps are more suitable for low volumes of flow at high pressures. Oct 13, 2023 · In conclusion, understanding the working principle of a reciprocating pump is essential for appreciating its reliability and versatility. Aug 25, 2025 · A reciprocating pump is a positive displacement pump that uses a piston for moving fluid in a system through a reciprocating motion. Centrifugal pumps are typically used where high volumetric flow rates at low pressure are needed. Feb 16, 2007 · It is sincerely hoped that the information presented in this document will lead to an even more impressive performance by the chemical processing and related industries. Reciprocating plunger pumps have several advantages over centrifugal pumps, including higher efficiency, simpler design, and lower maintenance costs. Unlike centrifugal pumps, which rely on centrifugal force to move fluid, positive displacement pumps use mechanical means to move fluid by trapping and displacing a specific volume of fluid with each cycle. The reciprocating piston or plunger converts the mechanical energy of the fluid into pressure energy. Here is a brief guide to various types of this positive displacement pump. A. These pumps utilize a simple yet effective design, relying on the linear motion of a piston within a cylinder to move fluids. The design allows for liquid or gas to be trapped in a chamber, which is then expelled when a piston within the chamber pushes the liquid or gas outward. Delivers a fixed volume of fluid per cycle, regardless of pressure. Learn more about the basics of reciprocating pumps and their applications. This fixed volume displacement mechanism makes the pump suitable for high-pressure, low-flow applications. Mar 8, 2025 · A reciprocating pump is a type of positive displacement pump that moves fluid by using a piston or plunger that moves back and forth inside a cylinder. fmoegg txlgehn magrk49b i9q 2wcno hsap6o pyl6a ssmjo 9ut4ip ko0