SOLTEQ ® ORIFICE AND FREE JET FLOW MODEL: FM 25 T HIS Orifice & Free Jet Flow (Model: FM 25) apparatus consists of an adjustable head tank with orifices of different diameters and a jet trajectory tracer. The orifice is installed at the base of the tank by means of a special wall fitting which provides a flush inside surface. The adjustable head tank is fed with water from a Hydraulics Bench. The head is maintained at a constant value by an adjustable overflow and is indicated by a level scale. A jet trajectory tracing device allows the path followed by the jet to be ascertained. Levelling is achieved by means of an adjustable feet. This equipment can be used for calibration of two orifices of different diameters. EXPERIMENTAL CAPABILITIES ♦ Velocity coefficient for a small orifice ♦ Discharge coefficient of a small orifice for constant head flow and variable head flow ♦ Comparing the measured jet trajectory with that predicted by simple theory SPECIFICATIONS Orifice diameters : 4.0 mm and 8.0 mm Jet trajectory probes :8 Max. constant head : 450 mm Tank diameter : 200 mm REQUIREMENTS Hydraulics Bench ( FM 110 ) Equipment for Engineering Education & Research