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# HORIZONTAL FLUID FRICTION PLANT MP76

A fluid circulating in a pipe circuit is subjected to a frictional force which causes a loss of energy and thus a total pressure drop. The pressure drop varies according to the resistances which the fluid meets. The regular pressure losses due to friction on the walls of the conduits can be distinguished from the losses caused by the individual resistances of elements in the circuit. (elbows, valves...).

The bench for the study of fluid dynamics MP76, makes it possible to quantify the various losses due to the principal elements met in an installation of piping.

The transparency of the conduits and the pressure reducing orifices allows a perfect visualization of the flows, as well as the visualization of the modes of laminar flow and turbulent. This bench is composed of industrial elements placed on a mobile frame. It functions in closed loop by means of a pump and a storage tank. It is self - contained, requiring only a suitable power supply.

It can be thus easily used in a workshop or a classroom and is easily transported. A various instrumentation is provided with the bench for the measurement of the pressures upstream and downstream of each element and thus for the determination of the regular and individual pressure losses, the flow measured by the pressure reducing orifices and coefficient Cv of the valves.

### Teaching objectives

-Study of the principal elements in an installation of piping
-Measurement of pressure losses generated by these various elements by means of manometric panel (MP76A) or/and electronic probe with transmitter (MP76B and MP76C)
-Visualization of the flows in the pressure reducing conduits and orifices
-Observation of the modes of laminar flow and turbulent according to the flows and pressures

Study of the regular pressure losses of:
- piping of various diameters
- piping smooth and rough
- piping rising, downward and tilted
Study of the individual pressure losses of:
- elbows of various angles
- abrupt increase or reduction of the piping diameter
- various valves
Calibration of the pressure reducing orifices (venturi, diaphragm) (MP76B)
Measurement of the flows by pressure reducing orifices (venturi, diaphragm)
Determination of Cv of the valves.

### Technical specifications

- Frame stainless equipped with casters, including two brakes
- A tank in transparent PVC with draining valve
- An industrial stainless body centrifugal pump
- A rotameter
- A membrane valve for controlling the flow
- Two pipe sections with diameters of 20 and 25 mm.
- Two pipe sections with a diameter of 15 mm, smooth and rough
- A piping with variable slope
- Elbows with 45°, 90° large and small ray and 135°
- A widening and an abrupt reduction Dn15-Dn25, in Altuglass
- A membrane valve
- A ball valve
- A cap valve
- A diaphragm in Altuglass
- A Venturi tube in Altuglass
- A device of dye injection
- A manometric panel with single and U tubes (MP76A)
- A differential pressure sensor (MP76B and MP76C)
- A control cabinet on/off of the pump and protection
- A set of manual valves
- Handbook technical and teaching.

EQUIPMENT PACKAGE :
- A manometric panel for the measures of the pressure losses in the main system.
U tubes to measure the differential pressures in the diaphragm and the venturi.
4 manometers for the measures of pressures between the valves and a manometric panel (Version MP76A).
- A manometric panel for the measures of the pressure losses in the main system.
A differential pressure sensor for pressures measurements in the diaphragm, the venturi and in valves (MP76B version)
- A differential pressure sensor with display for all the pressures measurements (MP76C version).
Options :
- Temperature probe and indicator
- Programmable indicator for calibration of diaphragm and venturi

### Dimensions and weight

2000 X 800 X 1200 mm - 100 kg

### Essential requirements

Necessary Service Power supply : 380V, 3 phase, 50 Hz