The rotor is held on the base frame with pivoting bearings. The weights and bearings can be placed at any location along the shaft and attached securely with quick-acting clamps. This benchtop unit is used to show the resonance and critical bending speed on rotating shafts. The construction of the rotor of a thin, flexible shaft and rigid weights facilitates the theoretical comprehension. It is possible to switch speeds during the experiment as desired. A transparent protective hood covers the rotating parts. A set of electrical vibration sensors with clamping set is also available. It is driven by a flexible coupling. Two motor speeds can be fine-adjusted and preset with ten-speed potentiometers. They are controlled electronically and displayed digitally.
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The Fluid Statics And Pressure Measurement equipment is designed for the study of static fluid and the measurement of pressures with different types of piezometric tubes and level measurement elements as graduated scales and level meter. One of these water columns has atilting system, so that students can clearly see the effect of the different possible inclinations. The tank and the in water columns have graduated scale for immediate and clear display of the water level that can be measured also by the water level supplied with this system. The equipment includes a transparent tank from where it is possible to pour water through valves and pipes and deliver it in the columns installed in the syst
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A fan with a flow control valve is connected to the bottom tank, and air is driven upwards through the column and exhausted at the top. Instrument are provided for measurement air flow rate, water flow rate, pressure drop across the cooling tower, temperature and moisture of the inlet and outlet air. This is a Cooling Tower Demonstration Unit. Water is heated in the storage tank, pumped through a flow meter and sprayed at the top of the tower. The water is cooled mainly by evaporation and drops to the bottom tank. Makeup water is admitted to the storage tank through a float valve. The packing in the tower breaks the water into thin films and droplets.
Experiments:
Application of steady flow equation to energy balance.
Cooling tower performance at various air and water flow rates with different inlet water temperatures.
Observation of water flow patterns and distribution.
Measurement of water and air flow rates, temperatures and humidity.
Function of the RSF governor
Function of the pressure valves
Displacement of the piston rod
Torsion of all pump plungers
By turning the camshaft one can see thestroke of all pump plungers.
Concrete flexural machine 150 KN open sided frame motorized with control unit fully automatic model to perform flexural tests on concrete beam specimens max. dimensions 200x200x800mm, kerbs, tiles, slabs, masonry units, flat blocks, flagstones, and any type of material having max. size 600x250 mm (lower rollers max. length 1325 mm).
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Theoretical topics:
The induction phenomenon and the Faraday Neumann's and Lenz's laws
The moving coil ammeter
Force in a wire run by current in a magnetic field
The self induction phenomenon
Lorentz's force
Direct current electric motors
Fault simulation
The relay
The static transformer
Alternators and dynamos.
Heating and cooling circuit equipped with expansion vessel, pump, boiler safety group, thermometers, water meter, heat exchanger
Transparent oil tank with filling and bleed connections
Functional heating boiler with oil burner
Boiler with control unit
Dissipation of generated heat via plate heat exchanger and cold water connection
Boiler casing equipped with a viewing window made of special glass.
Refrigeration system and pump to cool the water in the collecting tank
Pneumatic control valve in main circuit as actuator for all controls
Sensors for the measurement of the controlled variables; level, flow rate and temperature
Control of level, flow rate, temperature and cascade control
Main circuit with collecting tank, graduated stirred tank with heater, pneumatic control valve and centrifugal pump
PLC to monitor safety devices
Cooling circuit with pump, heat exchanger and rotameter
6 pushbuttons for fault simulation
2 parameterisable industrial controllers.
Initial sterilisation method:
Ethylene oxide gas.
Gauge of thread: Expressed in Decimal gauge DEC number and in the old system of thread numbering: DEC3 (2/0).
Thread without needle.
Type of thread: Absorbable, synthetic braided thread (PGA, polyglycolic acid).
Length: 150cm.
Sterile.
Disposable.
It is used for the cleaning, sterilization, health-care, massage, beauty care and decomposition of communication equipment, electrical repairing, glasses, optical instrument and family.
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Polycarbonate lens with anti-fog and anti-scratch coating
Frame consists of a combination of a polycarbonate lens with a Thermoplastic rubber lining
Provides chemical splash protection
Polyester headband provides a comfortable fit, while indirect venting allows air flow for anti-fog protection.
Streamlined design to work with hardhats and respirators.
Comfortable polyester headband provides a comfortable fit
Indirect venting allows airflow to minimize fogging.
Oxygen O2 Gas Digital Sensor
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This benchtop unit is used to demonstrate the principle of operation of various centrifugal force governors. The centrifugal masses and sleeve forces can be varied using the accessories included. The stroke can be measured using the marks on the governor shaft. When in operation, a transparent protective lid covers the rotating centrifugal governor. The drive with an electronically regulated motor is fitted in the housing. The speed is continuously adjusted using a 10-turn potentiometer and displayed digitally. The governor is placed in a chuck on the drive. The unit can only be placed in operation if the lid is correctly fitted. It only requires a supply of power. The unit is simply placed on a table in the laboratory for operation.
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Simple equipment suitable to study accurately the Bernoulli's Theorem Demostration the system includes a manometer board with multiple tubes granting the possibility to read simultaneously different pressures along the pipe. The manometer has non leaking quick fittings in order to avoid the outlet of water when the system is disconnected from the hydraulic bench. The connection of this unit to the hydraulic bench (not included in this item) is made through threaded screws and no tools are required.
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The Shell And Tube Heat Exchanger Transparent Casing apparatus is used for studying heat transfer through a shell and tube heat exchanger under parallel or counter flow conditions. Parallel and counter flow is by switching cold water hoses. The unit requires outside water supply. The module comprises a hot water tank with a transfer pump, instruments for monitoring and control. The unit consists of a shell and tube heat exchanger, and a service module.
Experiments:
Determination of heat transfer coefficient.
Effects of flow rate and temperature difference.
Demonstration of heat transfer under parallel and counter flow.
The interior mechanical structure and function of car transmission is clearly understood through its demonstration and operation. Transmission Model is ideal teaching equipment for colleges, secondary vocational and technical schools, car driving training and vehicle repairing field.
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Compression testing machine 5000 KN motorized with control unit (semi-automatic model), to test cubes up to 300 mm side and cylinders up to dia. 250x500 mm.
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Theoretical topics:
Triangle connected three phase load
Balanced three phase load
Star connected three phase load
Re phasing circuit
Resonance circuit
Unbalanced three phase load
Full wave rectifier circuit
Half wave rectifier circuit
Inductive load
Capacitive load
Six phase rectifier circuit
Fault simulation
Displacement of the centre of the star
Half bridge three phase rectifier circuit.
Hot water circuit with system of safety devices, pressure vessel with heater, pressure reducing valve, non-return valve, circulating pump with timer, outlets
Drain system on rear of panel, drain pipe dn 40 with high temperature stability
System divided into cold water side, hot water side, drain system
Cold water circuit with water meter, pressure reducing valve, angle-seat valve, system separator, outlets
Single handle mixer, two handle mixer, shower sprinkler, pipe vents
Familiarisation with the most important components in a drinking water installation.
