I need to calculate the steam flow rate (Nm³/hr) for the following application

* 500 L tank is put under pressure with saturated steam at 2.1 barg

* Steam temperature is 135 °C

* To decrease the pressure in the tank, a valve is opened to the atmosphere

* The valve shuts again when the pressure in the tank is 1.7 barg

* The pipe diameter is 1" and is longer than 10m.

A reliable estimation would already be good.

If I try to do this the discharge gas calculator, the value seems quiet high to me, so not sure I I use it correctly.

Thank you for your help.

Best regards,

Bert

## Steam flow calculation from tank

### Re: Steam flow calculation from tank

Without knowing the K of valve you can't tell the flow rate even using gas discharge calculator. If you fully open valve you can use K for it from manufacturers datasheet.

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