Xem 1-20 trên 25 kết quả Pressure pump
  • A Liqui-Mover pump is a positive displacement pressure powered pump with a minimum of moving parts. The pumping action is accomplished using a positive pressure to push the liquid from the pump tank into the return line. The Liqui-Mover pump can handle high temperature and high pressure condensate without difficulty. Liqui-Mover pumps are available in nine sizes. They are available in many configurations, from individual components that are field assembled to complete packaged systems ready for connection to field piping.

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  • Self-priming Jet pumps manufactured in stainless steel AISI 304, suitable for water supply, domestic pressure boosting and small irrigation systems, pool and tank emptying and general clean water pumping. Maximum working pressure: 6 bar • Maximum liquid temperature: 35°C according EN 60335-2-41 for domestic uses 45°C for other uses

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  • A centrifugal pump is a rotating machine in which flow and pressure are generated dynamically. The inlet is not walled off from the outlet as is the case with positive dis- placement pumps,whether they are reciprocating or rotary in configuration. Rather, a cen- trifugal pump delivers useful energy to the fluid or “pumpage” largely through velocity changes that occur as this fluid flows through the impeller and the associated fixed pas- sageways of the pump; that is, it is a “rotodynamic” pump.

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  • Larry Bachus and Angel Custodio met each other in the early 1990s in Puerto Rico. Larry was working on a pump and seal conversion in a pharmaceutical chemical plant and Angel was installing a computerized preventive maintenance system in the same plant. They had passed each other in the administrative offices at the plant and one day the maintenance engineer introduced them and suggested they work together. They became fast friends and have worked together on numerous projects over the years since, including this book....

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  • A displacement pump (also called positive-displacement, or just p-d) is a pump which imparts energy to the pumpage (the material pumped) by trapping a fixed volume at suction (inlet) conditions, compressing it to discharge pressure, then pushing it into the discharge (outlet) line.

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  • State the mechanism for steam generation in a PWR. Using simplified diagrams, identify and explain the purpose of the major components and equipment involved with a PWR. Identify the equipment used to control reactor power.

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Effects on heart pumping function when using foam and gauze for negative pressure wound therapy of sternotomy wounds...

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  • Pipe stress analysis calculates the stress in a piping system subject to normal operating loads such as pressure, weight, and thermal expansion, and occasional loads such as wind, earthquake, and water hammer. Because all piping systems are connected to equipment such as vessels, tanks, pumps, turbines, and compressors, the piping stress analysis also involves evaluation of the effect of the piping forces and moments to the connecting equipment. As the piping stress is controlled by the arrangement of the supports and restraints, the scope of piping stress includes also pipe supports.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 6 INTERNAL-COMBUSTION ENGINES Determining the Economics of Reciprocating I-C Engine Cogeneration 6.1 Diesel Generating Unit Efficiency 6.7 Engine Displacement, Mean Effective Pressure, and Efficiency 6.8 Engine Mean Effective Pressure and Horsepower 6.9 Selection of an Industrial InternalCombustion Engine 6.10 Engine Output at High Temperatures and High Altitudes 6.11 Indicator Use on Internal-Combustion Engines 6.12 Engine Piston Speed, Torque, Displacement, and Compression Ratio 6.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 14 WATER-SUPPLY AND STORMWATER SYSTEM DESIGN WATER-WELL ANALYSIS 14.1 Determining the Drawdown for Gravity Water-Supply Well 14.1 Finding the Drawdown of a Discharging Gravity Well 14.3 Analyzing Drawdown and Recovery for Well Pumped for Extended Period 14.6 Selection of Air-Lift Pump for Water Well 14.9 WATER-SUPPLY AND STORM-WATER SYSTEM DESIGN 14.11 Water-Supply System Flow-Rate and Pressure-Loss Analysis 14.11 Water-Supply System Selection 14.17 Selection of Treatment Method for Water-Supply System 14.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 25 HYDRAULIC AND PNEUMATIC SYSTEMS DESIGN Determining Response Time of PilotOperated Solenoid-Energized Spool Valves in Hydraulic Systems 25.1 Hydraulic-System Reservoir and Heat Exchanger Selection and Sizing 25.12 Choosing Gaskets for Industrial Hydraulic Piping Systems 25.19 Computing Friction Loss in Industrial Hydraulic System Piping 25.26 Hydraulic-Cylinder Clearance for Damping End-of-Stroke Forces 25.29 Hydraulic System Pump and Driver Selection 25.

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  • Page Introduction Description Stroke rate/Capacity and output Funktion Power Unit/Cam Unit combinations Selecting the components Dimensions and Order No Cam Units Force Cylinders 15–40–60–90–150 kN Compact Cams 15–40–60–90–150 kN Power Units 15–40–60–90–150 kN Flange Cam Electric hydraulic pump Accessories Connecting hoses Threaded couplings Quick-release couplings Charging and control fitting Oil filling unit Assembly tool Control fittings Compound threaded joints Test hoses and couplings Pressure switches Sensor mounting kit Inductive proximity switch/ Connection c...

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  • I. Introduction An important aspect of nuclear reactor core analysis involves the determination of the optimal coolant flow distribution and pressure drop across the reactor core. On the one hand, higher coolant flow rates will lead to better heat transfer coefficients and higher Critical Heat Flux (CHF) limits. On the other hand, higher flows rates will also in large pressure drops across the reactor core, hence larger required pumping powers and larger dynamic loads on the core components.

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  • Practically every industrial process requires objects to be moved, manipulated or be subjected to some form of force. This is generally accomplished by means of electrical equipment (such as motors or solenoids), or via devices driven by air (pneumatics) or liquids (hydraulics).

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  • This book incorporates selected topics on theory, revision, and practical application models for water supply systems analysis. A water supply system is an interconnected collection of sources, pipes, and hydraulic control elements (e.g., pumps, valves, regulators, tanks) delivering consumers prescribed water quantities at desired pressures and water qualities. Such systems are often described as a graph, with the links representing the pipes, and the nodes defining connections between pipes, hydraulic control elements, consumers, and sources.

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  • I recommend a dynamically stirred, two-pump, high-pressure mixing system. If, on the other hand, you’ll mainly be doing scouting gradients, dial-a-mix isocratics, and the occasional uncomplicated gradient, the low-pressure mixing system would be excellent and save you about $4,000. This system has the advantage of giving you three- or four-solvent capability, which would be of advantage in scouting and automated wash-out, but it requires continuous, inert gas solvent degassing.

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  • CHAPTER 11 PNEUMATIC AND HYDRAULIC MACHINE AND MECHANISM CONTROL DESIGNS AND OPERATING PRINCIPLES OF TYPICAL PUMPS These pumps are used to transfer liquids and supply hydraulic power. 1. WITH BUT TWO MOVING PARTS, the rotors that turn in the same direction, this rotary pump has reduced friction to a minimum. The rotors rotate against flexible synthetic rubber cushions that allow sand, grit and other abrasives to flow freely through the pump without damage. It is a positive displacement pump that develops a constant pressure and will deliver a uniform flow at any given speed.

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  • CHAPTER 55 PUMPS AND FANS William A. Smith College of Engineering University of South Florida Tampa, Florida 55.1 55.2 PUMPANDFANSIMILARITY SYSTEM DESIGN: THE FIRST STEP IN PUMP OR FAN SELECTION 55.2.1 Fluid System Data Required 55.2.2 Determination of Fluid Head Required 55.2.3 Total Developed Head of a Fan 55.2.4 Engineering Data for Pressure Loss in Fluid Systems 55.2.5 Systems Head Curves CHARACTERISTICS OF ROTATING FLUID MACHINES 55.3.1 Energy Transfer in Rotating Fluid Machines 55.3.2 Nondimensional Performance Characteristics of Rotating Fluid Machines 55.3.

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  • In common usage, an engine burns or otherwise consumes fuel, and is differentiated from an electric machine (i.e., electric motor) that derives power without changing the composition of matter.[3] A heat engine may also serve as a prime mover, a component that transforms the flow or changes in pressure of a fluid into mechanical energy.[4] An automobile powered by an internal combustion engine may make use of various motors and pumps, but ultimately all such devices derive their power from the engine....

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  • Before an engineer can repair a refrigerant leak in the system it has to be located and for this reason leak detection is the first step. If the system has not lost all its refrigerant charge, leak detection may proceed as described in Chapter 3 provided that there is an adequate test pressure within the system. When the entire refrigerant charge has been lost, the system has to be pres- surized. If the leak is found to be minor and on the low side of the system, ‘pumping down’ will be necessary before any attempt is made to repair the leak. Leakage from the high side of the...

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