alert icon

Internet Explorer 8 or 9 is not supported by this website. Please use a more up to date browser.

Hide Message hide icon
Swagelok Leipzig | Berlin

Your Authorized Swagelok Sales and Service Center

Regulator Flow Curve Generator

regulator flow curve generator

Swageloks Regulator Flow Curve Generator

With our free generator you can create flow diagrams for your RHPS pressure regulator. The program offers you the possibility to specify individual parameters to compare different scenarios.

Start Flow Curve Generator

The following information will be displayed:

  • Presenting the performance of a pressure regulator in up to 4 applications
  • Comparison of max. 4 pressure regulators in one application
  • Flow diagram in up to 4 different constellations of pressure regulators and applications

Instruction for using the generator

step 1
Enter application parameters

In the first section of the generator you define the basic specifications of your diagram.
E.g. report type, number of pressure regulators, pressure unit, performance speed, temperature unit

step 2
Pressure regulator specifications

The following sections adapt themselves according to your information from the first step.

Select now your desired pressure regulator in the selection list and enter your individual parameters.
The following information is requested: pressure regulator series, pressure control range, outlet pipe ID, gas type,
Max. Performance speed, inlet pressure, set pressure, inlet temperature


  • The output pipe ID and the max. power speed are indicated automatically. However, you can change the values in the field yourself at any time.
  • The "Molar mass" and "Specific heat" fields are only activated if you have selected "Customer-specific" as the gas type.
step 3
Calculate diagram

After entering all data, click on the confirmation button "Berechnen".
The generator automatically creates your individual flow diagram and opens it in a new window.

Input and calculation example:

Beispiel Durchflussgenerator

Diagram created from this:

Beispiel Diagramm Druckregler-Durchfluss

Please note:

The flow diagram does not show the lock-up pressure for an application. However, the shut-off pressure is factory tested and should not exceed 10% of the maximum control pressure of a pressure regulator configuration. This should be taken into account in the performance of a pressure regulator for each application. To learn more about pressure regulator performance, please refer to the Pressure Reducing Regulator Flow Diagram (MS-06-114). To learn more about each regulator series, see the Swagelok RHPS Series Regulators catalog (MS-02-430).


The flow characteristics of the regulators in this report are created from equations used in Swagelok product specifications, basic fluid properties, and stress theory to match product performance. These calculations have been made to take into account specific conditions and should not be used outside these conditions. This information is intended to help in the selection of the controller, but it cannot duplicate the variety of current operating conditions.

Secure product selection

When selecting products, the entire system design must be taken into account to ensure safe, trouble-free operation. The system designer and the user are responsible for function, material compatibility, appropriate performance data and limits of use, as well as for proper handling, operation and maintenance.