Hydrology Laboratory Equipment

Notch Tank Apparatus

Model No-FM-022


The”SUNLABTECH” used to demonstrate different flow processes at different control structures in the open channel. In the closed channel, pressure components in a pipe are determined. The trainer includes a transparent experimental flume with upper limit, a height-adjustable sill and a closed water circuit. The water level in the experimental section is set with an adjustable plate weir at the water outlet. With a simple alteration, the experimental flume can be used as an open or closed channel.

The water level must be low when investigating the open-channel flow. To conduct the experiment, a weir is attached to the bottom of the channel or the height-adjustable sill is used. Furthermore, the discharge under a gate can also be demonstrated. Various weirs, which can be exchanged quickly and safely, are available as control structures.

When studying the closed channel, the water level needs to be high enough that the entire experimental section is flowed through. In this case the sill is used to change the cross-section flowed through.

The static pressures and the total pressure over the cross-section are detected by measuring tubes. The pressure difference is used to calculate the flow velocity.

Notch Tank Apparatus


  • Investigation of flow processes in the open and closed channel
  • Flow processes in the open channel: gate, sill and various weirs
  • Closed water circuit with supply tank and pump
  • Discharge under a gate
  • Fully flowed through experimental section and change in cross-section over sill for experiments in the closed channel
  • Transparent measuring tubes for measuring static pressure and total pressure
  • Discharge under a gate
  • Hydraulic jump
  • Closed channel
  • Pipe flow with constant and variable flow cross- section
  • Measurement of static pressure and total pressure
  • Calculation of the flow velocity



Experimental section

Length: 1m

Cross-section W x H : 40x300mm

Supply tank: 70L



Power consumption: 250W

Max. Flow rate: 150L/min

Max. Head: 7,6m

230V, 50Hz, 1 phase



  • L x W x H: 800-x800 x 1000 mm
  • Weight: 90kg

Products Collection

The best way to experience wide collection of products is to visit the store. 

Feel Free To Contact Us For More Information​

Share this:

Like this:

Like Loading...
%d bloggers like this: