Descriptions:

• This is included in the form of a multiple tube manometer so that the pressure curve along the venturi flow meter can also be displayed. 
• A hand pump facilitates pressurization of the manometers.
• Calibrating each flow meter using the volumetric measuring tank of the bench.
• Venturi meter, variable-area meter and orifice plate with flow-control valve.
• The apparatus is placed on the Hydraulics Bench; this provides the water supply to the unit.
• The bench is used as the source of water supply and for volumetrically calibrating each flow meter.
• Directly comparing flow measurement using a Venturi meter, variable area meter and orifice plate.
• The circuit and manometer are attached to a support framework, which stands on the working top of the Hydraulics Bench. 
• Pressure tapping’s to measure head loss across each meter.
• Supplied with manometer board with eight tubes.

Specification:

• Manometer range: 0-400mm
• Throat diameter: 15mm
• Upstream pipe diameter: 31.75mm
• Upstream taper: 21° inclusive
• Downstream taper: 14° inclusive
• Dimension: 800-x800 x 1200 mm
• Weight: 120kg
• Number of manometer tubes: 8
• Orifice plate diameter: 20mm
• Variable area meter: 2-20 l/min

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Description:

• The turbine torque is determined by force measurement on a band brake and is read on spring balances. 
• For measuring the rotational speed, a non-contact speed sensor.
• A manometer shows the water pressure at the turbine inlet.
• Water turbines are turbo machines utilizing waterpower.
• The water is fed in the control device by means of a spiral housing.  
• The Francis turbine is part of the reaction turbines, which convert the pressure energy of the water into kinetic energy in the control device and in the impeller. 
• The flowing water is accelerated in the control device by the adjustable guide vanes and directed onto the vanes of the impeller. 
• The redirection and further acceleration of the water in the impeller generates an impulse, which is transmitted to the Francis wheel.

Specification:

• Output: 350W at 1500min-1, 270L/min, H=15m (approx.) 
• Max. Speed: 3000min-1
• Rotor,11 blades, 7 vanes
• Medium diameter: 60mm
• Angle of attack: 0…20°

Measuring ranges:

• Torque: 0…9,81Nm
• Pressure: 0…4bar abs.
• Speed: 0…4000min
• Dimension: 1000-x800 x 1200 mm
• Weight: 90kg

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Description:

• In an axial-flow pump the pumping medium flows through the impeller in the axial direction. 
• In axial-flow pumps, the pressure build-up is not achieved by the centrifugal force but like the aerodynamic principle, by the propeller blade. 
• A temperature sensor measures the water temperature. 
• The flow rate is measured with an electromagnetic flow meter.
• They are not self-priming and the propeller must always be covered by the pumping medium. 
• Axial propeller pumps are used when high flow rates and a small head are needed. 
• The closed water circuit means that the trainer can be used independently of the water system.
• The trainer is equipped with measuring elements for the pressures at the inlet and outlet of the pump. 
• The typical areas of application for propeller pumps are drainage systems, wastewater treatment plants and cooling water supply systems. 

Specification:

• Pump Output: 1000W at 1000min-1
• Max. Flow rate: 700L/min
• Max. Head: 1,75m
• Tank: 160L

Measuring ranges:

• flow rate: 0…1200L/min
• Temperature: 0…100°C
• Pressure (inlet): ±1bar
• Pressure (outlet): 0…0,6bar
• Power Supply: 230V, 50Hz, 1 phase
• Dimension: 1110x800x1380mm
• Weight: approx.: 154kg

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Description:

• A centrifugal pump and a flow control valve for adjusting the inlet pressure. 
• The transparent operating area of the turbine enables an optimal view of water flow, rotor and guide vanes during operation. 
• By adjusting the guide vanes the angle of attack, the cross-section and thus the output of the turbine are changed. An asynchronous machine is used as a generator for loading the turbine.
• The generator is equipped with a pendulum bearing and with a force sensor to determine the torque. 
• A pump with variable speed via frequency converter provides for an energy efficient operation.
• The measured values are displayed digitally and can be processed further on a PC.
• The speed of the turbine is recorded by means of an inductive, non-contact position sensor at the generator shaft. 
• The pressures at the inlet and outlet of the turbine, the temperature and the flow rate are recorded by sensors. 

Specification:

• Hydraulic power: 2,1kW at 1500min-1
• Mechanical power: approx. 1,4kW at 1500min-1
• Rotor, D: 165mm
• 8 blades, 8 guide vanes
• Angle of attack adjustable: 0…23°
• Centrifugal pump, multistage.

Variable speed:

• Pump head: 42m
• Tank: 550L
• Power consumption: 5,5kW
• Max. Flow rate: 900L/min
• Asynchronous machine as generator
• Output: 2,2kW at 1440min-1

Measuring ranges:

• Temperature: 0…100°C
• Pressure (inlet): ±1bar (turbine)
• Pressure (outlet): 0…6bar (turbine)
• Flow rate: 0…1000L/min
• Torque: 0…20Nm
• Speed: 0…3000min-1

Power supply:

• 0…2200W (generator)
• 400V, 50Hz, 3 phases
• 400V, 60Hz, 3 phases, 230V, 60Hz, 3 phases
• Dimension: 2350x1050x2050mm
• Weight: approx. 580kg

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Description:

• Two gear wheels operate inside a casing. 
• One is driven while the other rotates in mesh with it. 
• The output is a more even flow than that of a reciprocating pump. 
• It is particularly suitable for high-viscosity fluids. 
• The liquid is carried around in the space between consecutive teeth and then ejected as the teeth mesh. 
• A motor-driven gear pump, mounted on a stainless steel plinth with a water reservoir and pipework for continuous circulation. 
• The pump head and the water reservoir are manufactured from clear acrylic for maximum visibility
• The pump speed is accurately controlled by an advanced electronic inverter. 
• The pump has no valves. It is a positive displacement pump and will deliver against high pressures.
• The conditioning electronics for the sensors and allows their readings to be displayed on the computer software.

Specification:

• Flow rate.
• Motor shaft power.

Pump speed:

• Pump efficiency.
• Volumetric efficiency.
• Max flow rate:6.5 l/m typical
• Max head: 25m
• Max pump speed: 1,800rpm
• Motor power rating: 250W, 230 V, 1PH
• Dimension: 670x590x750mm
• Weight: approx. 50kg

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Description:

• The set-up consists of a submersible pump coupled with a DC Motor. 
• A ball valve is used to adjust the head.
• An asynchronous motor drives it. 
• The speed is infinitely adjustable by using a frequency converter. 
• A RPM Indicator with Proximity sensor indicates the RPM of Pump. 
• Flow of water is measured by using measuring tank and stopwatch. 
• Vacuum gauge is fitted on suction line and Pressure gauge is fitted on delivery line to measure the pressure.
• The experimental unit includes a self-priming Submersible pump, a ball valve on the outlet side and manometers on the inlet and outlet side. 
• Power input to the DC Motor is varied by means of a Thruster controlled DC Drive to vary the RPM of motor. 

Specification:
Variable speed

• Maximum flow rate: 70lpm
• Maximum head:  7 mtr
• Power rating: 0. 75 kw
• Power supply: 230v 1ph 50hz
• Dimension: 1000X 500 X 700 mm
• Weight: 80kg (approx)

Measuring instruments:

• Pressures gauge/sensors
• Vacuum gauge/sensor

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Description:

• The test rig consists of a closed water circuit with water tank, a piston pumps with variable speed via a frequency converter and an air vessel. 
• The position of the piston rod is measured by an angle sensor. 
• This allows the determination of the cylinder volume. 
• The pulsating pressure curve of the pump can be damped with the aid of the air vessel. 
• Flow rate and head are adjusted via a needle valve and overflow valve.
• The experimental unit is fitted with sensors for pressure and flow rate. 
• The microprocessor-based measuring technique is well protected in the housing. 
• The piston of the pump is mounted in a transparent housing and can be observed during operation. 
• The cycle that takes place (intake and discharge of water) can be shown clearly in the p-V diagram. 
• One pressure sensor measures the pressure at the outlet of the pump; another one measures the pressure in the inside of the cylinder. 
• The measured values are transmitted directly to a PC via USB where they can be analyzed using the software included.

Specification:

• Piston pump Speed: 30…180min-1
• Max. Flow rate: 135L/h
• Max. Head: 40m
• Drive motor Power: 180W
• Gear transmission ratio: 1=7,5
• Dimensions: 670x590x740mm
• Weight: 49kg (approx.)  

Measuring ranges:

• Pressure (cylinder): 0…5bar
• Pressure (outlet): 0…5bar
• Crank angle: 0…360°
• Flow rate: 0,2…6L/min

Power supply:

• 230V, 50Hz, 1 phase
• 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase

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Features:

• The transparent cover enables to observe the water flow, the Pelton wheel and the nozzle during operation. 
• The nozzle cross-section and thus the flow rate are modified by adjusting the nozzle needle.
• The turbine torque is determined by force measurement on a band brake and is read on spring balances. 
• For measuring the rotational speed, a non-contact speed sensor.
• The water jet is accelerated in a nozzle and hits the Pelton wheel tangentially. 
• In the blades on the circumference of the Pelton wheel the water jet is deflected by approximately 180°. 
• The impulse of the water jet is transmitted to the Pelton wheel.

Specification:

• Speed range: 0-2000 rpm
• Brake power: 10W
• Pressure gauge range: 0-25m H2O
• Force balance range: 0-20N x 0.2N
• Number of Pelton buckets: 16
• Diameter of Pelton wheel: 123mm
• Power required: 230v, 50hz, 1ph
• Dimension: 1000x800x1200mm
• Weight: approx. 90 kg

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