メガケム Product Lineup

This is a device for extensively experimenting and researching the operational characteristics of centrifugal pumps and turbines (waterwheels). A variable-speed motor operates the pump, drawing water from a tank and circulating it back to the tank through a strainer, valve, and venturi tube. The pump's rotational speed (rev/min), torque (N.m), output (W), differential pressure in the venturi tube (△P), and inlet/outlet pressure of the pump are digitally displayed, allowing for a wide range of experiments by adjusting the pump's outlet and inlet valves to change operating conditions. By installing one of the separately sold options—a Pelton turbine, Francis turbine, or propeller turbine—along with a turbine dynamometer (MFP101a), it is also possible to measure the turbine's rotational speed, shaft torque, and output. Additionally, using the optional data automatic collection system VDAS, various data can be collected and analyzed in real-time on a PC (sold separately).

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This is a device for extensively experimenting with the operating characteristics of a centrifugal pump. A variable-speed motor operates a pump that can be observed internally, drawing water from a tank and circulating it back to the tank through a strainer, valve, and venturi tube. The impeller section is designed with a transparent cover for observation. The pump's rotational speed (rev/min), torque (N.m), output (W), differential pressure in the venturi tube (△P), and inlet/outlet pressure of the pump are digitally displayed, allowing for a wide range of experiments by changing operating conditions through valve adjustments. Additionally, by using the optional data acquisition system VDAS (sold separately), various data can be collected and analyzed in real-time on a PC (sold separately).

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This is a device used to experiment and research the operational characteristics of one or two spiral pumps (connected in series or parallel) over a wide range. Two variable-speed motors operate each pump, which can be observed from the inside, drawing water from a tank and circulating it back to the tank through a strainer, valve, and venturi tube. The impeller section is designed with a transparent cover for observation. The pump's rotational speed (rev/min), torque (N.m), output (W), differential pressure in the venturi tube (△P), and inlet/outlet pressure of the pump are digitally displayed, allowing for a wide range of experiments by changing operational conditions through valve adjustments. Additionally, by using the optional data automatic collection system VDAS (sold separately), various data can be collected and analyzed in real-time on a PC (sold separately).

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It is a waterwheel that uses the reaction of water hitting the runner as rotational force, consisting of an 80mm runner (with 10 blades), 6 adjustable guide vanes, a friction load device (spring scale type), and an inflow pressure gauge, and experiments will be conducted while varying the inflow water volume and load.

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We measured the pressure distribution at a total of 11 locations along a horizontally oriented translucent Venturi tube, derived the theoretical flow rate using Bernoulli's theorem from each cross-sectional area, and calculated the flow coefficient from different flow rates (maximum flow rate of 27 L/min). The 11 manometer tubes are connected to the upper head, allowing for adjustment of the manometer water head level by operating the air valve. The experiment requires an H1F hydraulic bench (sold separately) for water supply and flow measurement.

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The friction loss of a horizontal small-diameter pipe (φ3xL524mm) will be measured, and the determination of the critical flow transition point and critical Reynolds number will be conducted through the ranges of laminar and turbulent flow. In the low flow experiments, an elevated tank and manometer will be used, while in the high flow experiments, the water supply pipe will be directly connected to the apparatus, and the differential pressure will be measured using a digital differential pressure gauge. The flow rate will be controlled by a needle valve at the downstream end of the test pipe, and water will be supplied using an H1F hydraulic bench (sold separately), although existing water supply systems can also be used.

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This is an experimental device for visualizing flows similar to potential flow, which creates flow patterns using colored water to observe the flow around various shapes. Additionally, the four valves can control two water supply holes and two drainage holes located near the center to create streamlines. *It is recommended to supply water to the device from a stable source, such as an elevated tank.

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This is a device for conducting experiments on pressure and flow measurement in a Venturi tube, orifice plate, and floating flow meter, demonstrating the application of the energy equation (Bernoulli) for steady flow. The piping is made of transparent resin to allow observation of the internal conditions, and measurements include the head loss caused by each flow meter, sudden expansions, and the head loss from 90° elbows. The experiment requires a H1F hydraulic bench (sold separately) for water supply and flow measurement.

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We will conduct experiments on the total water pressure acting on the flat and curved surfaces of a transparent plastic container with a quarter-circle shape supported at a pivot point, as well as its points of action. We will fill the entire container or part of it with water and measure the forces exerted by the liquid, comparing them with theoretical values.

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This is an experimental setup consisting of a shallow tank and a floating pontoon (ark). By changing the height of the center of gravity and the angle of inclination, we analyze the shapes to derive stability.

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Calibration of the Bourdon tube pressure gauge will be performed using weights. A skeleton-type Bourdon tube pressure gauge is used so that the internal operation can be learned, allowing observation of the internal tube moving under pressure.

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We will conduct experiments on the pressure loss of various piping used in home central heating systems, etc. There are straight pipes, bent pipes, and two pathways with valves and expansion and contraction mechanisms, and we will close the valve of one pathway to conduct individual experiments. The experiments will require an H1F hydraulic bench (sold separately) for water supply and flow measurement.

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The experiment will be conducted using a waterwheel that converts the impact of water ejected from a nozzle into rotational force, consisting of an 80mm runner, an ejection nozzle, a friction load device (spring scale type), and an inflow pressure gauge, while varying the ejected water volume and load. The apparatus will be placed on a hydraulic bench (sold separately) for the experiment.

• Water treatment equipment

This is an experimental device for comparing and verifying differences in pressure measurement methods. The manometer setup, consisting of a vertical manometer, an inclined manometer, a pressure gauge, and a vacuum pressure gauge, will conduct comparisons of each measurement value and characteristic experiments. Additionally, a specially designed Bourdon tube pressure gauge that allows for internal observation will enable the observation of the movement of the tube inside the instrument, and characteristic experiments will be conducted during pressurization and depressurization using weights. Each gauge and manometer is equipped with a pressure socket, and T-joints and tubes for conducting pressurization and vacuum experiments using a syringe are included.

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It is called a water hammer or water impact pump, which takes in water from a high position and transports it to an even higher position. It consists of a drainage valve, air tank, pressure gauge, flow control valve, and elevated water tank set, and is used for experiments in combination with the H1F hydraulic bench (sold separately) and others.

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We will analyze the flow from the orifice or nozzle discharged in the vertical and horizontal directions. While measuring the flow reduction, velocity, and discharge amount, we will analyze various discharge characteristics and the effects of Reynolds number, and measure the trajectory of the horizontal jet.

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A compact tabletop experimental device that compares the energy losses of three types of bent pipes, sudden expansion, and contraction pipes, consisting of a multi-tube manometer and a flow control valve. The experiment requires an H1F hydraulic bench (sold separately) for water supply and flow measurement.

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We will conduct characteristic experiments on various flow meters used around us. The inlet and outlet of the piping will measure the pressure loss of the flow meter, and the flow rate will be calculated from the pressure difference, flow coefficient, viscosity, density, etc., of each flow meter. By comparing the experiments of each flow meter, we will understand the accuracy and characteristics of the flow meters and consider their usage. A nozzle-type flow meter is included, but other options (sold separately) such as a Pitot tube flow meter (H40a), a Venturi flow meter (H40b), and an orifice flow meter (H40c) are available. The experiment requires a H1F hydraulic bench (sold separately) for water supply and flow measurement.

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This is an experimental device for measuring pressure loss and flow measurement techniques in various pipes and fittings, consisting of a main body and a measuring manometer. Using three types of pathways that include measuring instruments, straight pipes, and bent pipe components, the characteristics of each component are investigated and compared using a manometer and differential pressure gauge. In addition to learning general measurement methods and the application of Bernoulli's theorem, the experiment involves comparing pressure losses in a Venturi tube and an orifice plate, as well as determining the pressure loss in a sudden expansion pipe. The Pitot tube system within the device also derives the velocity distribution and flow coefficient in the transparent pipe cross-section direction. The experiment requires a H1F hydraulic bench (sold separately) for water supply and flow measurement.

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We will demonstrate the transition from laminar flow to turbulent flow and compare the critical Reynolds number in transitional flow with theoretical values. The setup consists of a glass head tank and glass tubes, an ink tank, and an injector, allowing us to observe the behavior of the flow using dye while adjusting the flow rate with a drainage valve located at the bottom of the apparatus. We will experiment on what happens when the flow transitions from laminar to turbulent. Additionally, experiments can be conducted by using an optional heater module (sold separately) to change the water temperature and viscosity.

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It consists of a 5-meter long adjustable slope open channel, a water storage tank, a water circulation pump, a channel slope adjustment jack, a digital inclinometer, and a digital flow meter, which draws water at a maximum rate of 180 L/min to the upstream of the channel with a cross-section of 80xH250mm. Additionally, necessary equipment for the experiment, such as weirs, flumes, depth gauges, and pitot tubes for total pressure measurement, will be provided along with the experimental procedure document.

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This is an experimental device to understand the significance of water hammer and cavitation that occur in pumps and hydraulic turbine systems. It consists of a 61-meter long coiled copper pipe, a solenoid valve, pressure sensors and Bourdon tube pressure gauges, a floating flow meter, a flow control valve, and a bypass valve. Water is supplied to a copper pipe with an inner diameter of 12.7 mm, and the flow rate inside the pipe is adjusted using the flow meter and bypass valve. The control box has a solenoid valve operation switch and a BNC terminal for pressure measurement, allowing it to be connected to an oscilloscope (sold separately) to observe the behavior.

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We will experiment with the operation characteristics of two centrifugal pumps in series and parallel operation, or the operation characteristics of a single pump. The setup consists of electric motors (constant speed) that drive each pump individually, a transparent acrylic water storage tank and valves, and a floating flow meter, with pressure gauges placed at the pump inlet and outlet. The impeller part of each pump is designed with a transparent cover for observation, and cavitation demonstrations can also be conducted. *There is also a PC data collection system type available with a similar experimental setup as H52. H53V Series and Parallel Pump Experimental Device (Variable Speed) H53V can vary the pump motor speed and digitally displays the rotational speed (rpm), torque (N.m), output (W), pressure (bar), flow rate (L/s), and temperature. Additionally, various data can be collected and analyzed in real-time on a PC (sold separately) using the accompanying software.

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This is a device for efficiently experimenting with the causes and phenomena of cavitation generated by pumps and turbines. The device consists of a water tank, an electric pump, a flow control valve, a flow meter, a pressure gauge upstream of the Venturi tube and a pressure gauge at the throat, and a Venturi tube (with a transparent window). It allows for easy observation of the occurrence of cavitation while adjusting the flow rate, helping to understand how cavitation begins based on the theory calculated from the temperature, density, and pressure of the water and experimental results.

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It is an oil pump used to transfer a fixed volume of liquid, available in rotary and piston types, and is utilized in many industrial products such as lubrication systems, hydraulic systems, automobiles, and medical devices. It consists of a pump drive motor and control unit (MFP100), an oil tank, and a fixed volume flow meter, measuring and digitally displaying the pump inlet and outlet pressure, flow rate, oil temperature, pump shaft speed and torque, and output on the control unit. Additionally, by using the optional data automatic collection system VDAS (sold separately), various data can be collected and analyzed in real-time on a PC (sold separately).

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This is a small wind tunnel experimental device with a test section of 100x50mm. It has a very compact design, allowing for easy movement and storage when not in use. It can be used in a wide range of experiments in combination with auxiliary equipment for demonstrations in lectures, practical training in laboratories, and student research projects. The air discharged from the blower flows into the test section through the rear duct, upper chamber, honeycomb, and converging section. The wind speed is derived using Bernoulli's theorem from the pressure in the test section and chamber. This device comes with eight types of experimental setups available for separate purchase, ranging from AF11 to AF18, which can be easily attached to the AF10. Each experimental setup can be purchased individually, and we encourage you to consider configurations that meet your needs.

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It is a circulating water supply device for supplying water to various experimental apparatuses in a hydraulic engineering experimental setup. The device consists of a water storage tank, an electric pump, a flow control valve, and a digital flow meter, which displays the amount of water discharged from the pump digitally. Additionally, the compactly designed bench with reinforced plastic casters can be easily moved to various locations.

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This is a compact tabletop experimental device designed to test the operation characteristics of two centrifugal pumps in series and parallel operation, or a single pump. The device consists of electric motors (variable speed) that drive each pump individually, a transparent acrylic water storage tank and valves (for each pump inlet and outlet), pressure sensors (for each pump inlet and outlet), and a flow sensor (for the drainage outlet). The impeller part of each pump is designed with a transparent cover for observation, allowing for demonstrations of cavitation. The included control box allows for variable adjustment of motor speed and digitally displays rotation speed (rpm), torque (N.m), output (W), pressure (bar), flow rate (L/s), and temperature. Additionally, the included data acquisition software VDAS can collect and analyze various data in real-time on a PC (sold separately). *There is also an analog type of experimental device similar to the H53V. H52 Series and Parallel Pump Experimental Device (Constant Speed) The H52 operates with a constant motor speed and is composed of an analog pressure gauge and a float-type flow meter.

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It consists of a 2.5M long adjustable slope open channel, a water storage tank, a water circulation pump, a channel slope adjustment jack, a digital inclinometer, and a digital flow meter, capable of drawing up to 180L.min-1 of water to the upstream of the channel with a cross-section of 80xH250mm. Additionally, necessary components for the experiment, such as weirs, flumes, depth gauges, and pitot tubes for total pressure measurement, are included with the experimental procedure manual.

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It is a small water channel made of reinforced plastic that controls the flow by attaching different weirs and measures and analyzes the flow rate. The device is installed on the hydraulic bench H1F (sold separately) to supply water. It comes with a rectangular weir, two types of V-shaped weirs, and a height gauge. The experiment requires the H1F hydraulic bench for water supply and flow measurement (sold separately).

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This is a portable small water channel consisting of a 2.5M long transparent acrylic water channel and slope system. It can be used in combination with the hydraulic bench H1F (sold separately), and comes with necessary weirs and flumes, depth gauges, and pitot tubes for total pressure measurement, along with the experimental procedure manual.

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The analysis of the flow through the orifice will be conducted as a function of cross-sectional area, flow velocity, and flow rate. It consists of a cylindrical glass tank and an orifice, allowing observation of the water head situation through the orifice, and the water head and its range of the jet flow will be measured using an integral pitot tube. An aluminum orifice set (6 types) is included. The experiment requires a H1F hydraulic bench for water supply and flow measurement (sold separately).

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We observe the impact of a precise and rapid high-speed jet stream on the test specimen (blade) and measure its force. As an optional accessory, a 120° conical plate and a 30° inclined plate (H8a) are also available, allowing us to measure the forces on various surfaces subjected to jet impact and understand the laws of momentum to solve jet impact problems.

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A transparent container that creates various types of vortices, generating natural and forced vortices, and measuring their shapes and movements. The device consists of a W380mm transparent container that rotates with a variable-speed motor, a removable W286mm perforated transparent container, a traverse pitot tube, and a depth gauge. Experiments will be conducted with natural vortices using the perforated transparent container attached, and forced vortices with it removed.

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The open channel is a variable slope type with a width of 300mm and a depth of 450mm, and the length of the channel can be selected from 5/7.5/10/12.5/15M. The channel consists of a water storage tank, a water circulation pump, a flow meter, a channel slope adjustment device, an electric drainage gate, and a control panel. The channel is equipped with a digital flow meter and an inclinometer, while a separate control panel manages the water flow rate, channel slope, and drainage gate level, with the drainage gate level setting the water depth in the channel. Pressure measurement holes spaced 25cm apart along the channel allow for analysis by connecting to a separately sold manometer or pressure display device. The FC300 comes with necessary equipment for experiments, including a sluice gate and weir, depth gauge, pitot tube for total pressure measurement, and float switch, along with an experimental manual. Additionally, various options (sold separately) are available to suit experimental purposes. Moreover, the included dedicated software (VDAS) can display and save water flow rate and channel slope data in real-time to a PC (sold separately).

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This open-type suction wind tunnel allows for a wide range of experiments related to fluid dynamics, despite its compact design. It consists of a large bell mouth with a honeycomb, a two-dimensional converging nozzle, an experimental area (125x125mm), a diffusion section, a protective mesh, a variable-speed fan, and a silencer unit, achieving a flow with minimal turbulence. The included manometers (6 units) and two Pitot tubes positioned before and after the experimental area measure the wind speed and pressure distribution in the wake of the model. The experimental area has four sides made of transparent acrylic panels, with the front and back panels being removable. The device comes with a single force balance measurement system and three types of experimental models (a cylindrical model with pressure holes, a NACA0012 wing model, and a flat plate model), allowing for immediate experiments on drag or lift, as well as pressure distribution experiments around a cylinder. The drag or lift (N) is digitally displayed on the included display unit. Additionally, the single force balance measurement system can be mounted on the underside of the experimental area, enabling the measurement of drag (N) using original test specimens created with a 3D printer or similar methods.

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This open-type suction wind tunnel can conduct a wide range of experiments related to fluid dynamics while maintaining a compact design. It consists of a large bell mouth, a two-dimensional converging nozzle, an experimental area (305x305x600mm), a diffusion section, a protective mesh, an axial fan, and a silencer unit, achieving a flow with minimal turbulence. The control unit (desktop type) regulates the rotational speed of the axial fan and controls the flow velocity in the experimental area. The wind tunnel and control unit, mounted on a caster-equipped frame, are designed to be very compact, making it easy to change their arrangement. Various options can be added according to the experimental objectives. The optional data automatic collection system VDAS (sold separately) can display measurement data in real-time on a computer (sold separately) and can calculate and graph the collected data, facilitating smooth progress in experiments.

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This is a specially designed small wind tunnel to visualize the airflow around a model. The compact device can be demonstrated in various locations, such as classrooms, regardless of the laboratory setting, and can be easily moved and stored when not in use. The airflow moves from the bottom to the top. Air entering from the bottom of the device passes through a contraction section and a comb-shaped nozzle, then enters observation ducts illuminated on both sides. The lighting clarifies the streamlines around the model. There is a variable-speed fan at the duct exit that adjusts the flow rate based on volume. A smoke generator is located beneath the device. Smoke (oil droplets) is produced by heated vegetable oil and carbon dioxide supplied from a tank, and is sent to the comb-shaped nozzle. From the comb-shaped nozzle, 23 streamlines are released to observe the airflow around the model.

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This is a device specially designed to conduct extensive experiments on the takeoff, flight, and landing of aircraft. The aircraft model in the suction-type open wind tunnel consists of two propellers, a main wing with a chord length of 152mm (NACA2412), and a fully movable tail with a chord length of 76mm. Air flowing in from the bell mouth is discharged from the device through a rectifying honeycomb, the experimental area equipped with the aircraft, a diffusion body, an axial fan, and a silencer duct. The control wheel located at the front of the experimental area manipulates the tail angle of the aircraft model, while the lever resembling the engine throttle on the right side controls the wind speed within the wind tunnel.

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Compressed air is rapidly blown from an optional (sold separately) large-capacity compressor and tank into the downstream of the experimental area. The air that passes through the settling chamber and converging chamber provides a stable flow at subsonic, Mach 1.4, and Mach 1.8 to the experimental area. The air that has passed through the experimental area mixes again with the blown air and recirculates. Excess air is discharged from the exhaust filter. The experimental area, measuring 100mm x 25mm, comes with three types of interchangeable liners for subsonic, Mach 1.4, and Mach 1.8. The included model is mounted in the center of the observation window, and experiments are conducted while changing the angle. The pressure at 25 points in the experimental area is displayed in real-time digitally in four groups, and two Bourdon tube pressure gauges show the pressure from the compressor (sold separately) and the supply pressure to the wind tunnel. *The operating time (approximately 10 to 20 seconds) varies depending on the capacity of the compressed air tank, etc.

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This is a device for visualizing the airflow around a model installed in a wind tunnel, which generates smoke from the tip of a probe. It consists of an oil supply device and an electric heater control device, and it controls the amount of smoke (oil droplets) generated by adjusting the oil supply and heater output volume.

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This is an experimental device for learning the basics of wind power generation, equipped with a 70W wind turbine and a φ400mm axial fan wind tunnel, mounted on a movable caster frame. Air drawn in from the left bell mouth passes through a honeycomb, anemometer, wind turbine, safety mesh, axial fan, and silencer duct before being discharged. Experiments are conducted while manipulating wind speed, blade pitch, yaw angle, and turbine speed (load resistance), with parameters such as blade pitch, yaw angle, turbine rotation speed (rpm), and current output (A) digitally displayed on the control box. Additionally, using the accompanying software (VDAS), wind speed (m/s), output (W), generator voltage (V), and other data can be automatically calculated in real-time, allowing for efficient collection of experimental data on a PC (sold separately). Transparent observation windows are installed at the front and back of the experimental area, and the front opening door is equipped with an interlock safety mechanism.

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This is an experimental device designed to learn about the performance and usage of solar panels and energy storage systems, which are forms of renewable energy. It consists of a solar panel mounted on a lightweight frame with casters, which can be adjusted for angle, a solar panel unit made up of a solar panel and a pyranometer, a control unit that includes a charge controller, and an electrical load unit. The control unit digitally displays the solar panel voltage and current output, battery voltage and current output (during battery charging), voltage and current output to the electrical load unit, and solar radiation (W/m²). The electrical load device includes four filament lamps and a variable electrical load device (3-50Ω), as well as a 100W inverter for external output. Experiments using batteries with low capacity help investigate charge and discharge cycles. By using the optional (sold separately) data automatic collection system VDAS-B, various data can be collected in real-time to a PC (sold separately) and the experimental results can be analyzed.

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The device mounted on a movable cart understands the principles, advantages, and limitations of collecting solar energy. The device consists of a highly polished stainless steel parabolic reflector, an energy collector with a copper cylinder shape, a turntable, and a display unit. By adjusting the horizontal and vertical positions of the reflector, it can gather solar energy into the energy collector, and four types of collectors of different sizes allow for experiments at various concentration ratios. Additionally, a removable transparent cover enables comparison of the collector's characteristics with and without shielding. A pyranometer is installed on the reflector support, allowing measurement of solar radiation energy, and the display unit digitally shows the collector temperature, ambient temperature, and solar radiation amount. By using the optional (sold separately) data automatic collection system VDAS-B, various data can be collected in real-time to a PC (sold separately), and experimental results can be analyzed.

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We will conduct measurement experiments on solar thermal efficiency and heat loss regarding the use of renewable and environmentally friendly energy sources. Similar to devices used for residential heating and swimming pools, the system consists of pipes arranged on a plate, a transparent acrylic cover, a portable frame with an angle adjustment mechanism, a mixing pump, a pressure relief valve, and a control unit. The back of the plate is treated with insulation to reduce heat loss. Cold water supplied from sources such as tap water passes through a flow meter and valve, is heated by the solar collector plate, and enters the pump. The hot water discharged from the pump mixes with the supplied cold water and heads back to the solar collector plate. The pressure relief valve operates based on the water supply pressure, releasing hot water to limit the internal pressure. The control unit digitally displays the flow rate of cold water, solar radiation, cold water temperature, inlet/outlet temperatures of the solar collector plate, and ambient temperature, clarifying the energy efficiency and heat loss of the solar collector plate. By using the optional (sold separately) data automatic collection system VDAS-B, various data can be collected in real-time to a PC (sold separately), allowing for the analysis of experimental results.

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