Flow calculator for control penstocks

With our flow calculator, you can determine the required throttling opening for TESACO control penstocks based on the desired flow rate and the design water level. You will receive the required opening width as a result. In addition, the corresponding flow characteristics for the respective nominal diameter are available for download.

Orifice Plate Calculator | TESACO-Technique GmbH

Flow Calculator

Digital Planning Tool: Enter the values for head loss (impoundment height) and flow rate, select the nominal diameter, and click "Calculate".

Head Loss / Impoundment Height [m]

Nominal Diameter DN

Flow Rate [l/s]

Required Plate Opening:

- mm

The desired flow rate is physically impossible to achieve, as the required opening area is larger than the total cross-sectional area of the pipe.

Drosselblenden-Rechner | TESACO-Technique GmbH

Drosselblenden-Rechner

Digitale Planungshilfe: Geben Sie die Werte für Stauhöhe und Durchflussmenge ein, wählen Sie die Nennweite aus und klicken Sie auf „Berechnen“.

Stauhöhe [m]

Nennweite DN

Durchflussmenge [l/s]

Erforderliche Plattenöffnung:

- mm

Die gewünschte Durchflussmenge ist physikalisch nicht erreichbar, da die erforderliche Öffnungsfläche größer als die volle Kreisfläche des Rohres ist.

Individual hydraulic design

Should your project’s boundary conditions deviate from the standard assumptions or if you require support with the design, we are happy to assist you. Upon request, we will take over the hydraulic design completely and provide you with the necessary calculations as well as the suitable flow characteristic.

Project-specific flow calculation

For your project documentation, we will create a complete flow calculation for the selected nominal diameter, water level, and flow rate upon request. The calculation includes the required penstock opening, the degree of opening, and a project-specific flow characteristic with the marked operating point. The document can be used directly for planning, coordination, and technical documentation.

Flow characteristics

For all standard sizes, the corresponding flow characteristics are available for download as PDF. The characteristics allow for the traceability of the calculated throttling opening and are suitable for documentation as well as for project files.

Request a quote now

We are happy to assist you in selecting the appropriate control penstock and the required throttling opening. Simply send us your project data or use the flow calculator as a basis for your planning. Upon request, we will provide a technical quote promptly.