Dear friends,

I am trying to explore Pipenet, Transient mode. While I am simulating a pipeline transportation, I get this problem as attachment. Please help and give some advices. More details as follows:

Fluid is pumped by a centrifugal pump through pipeline. A NRV is provided at the discharge line of pump to protect again back flow. On the other side of pipeline, one SDV operates. During inadvertent closure of SDV:

- SDV closure time: 8 secs
- I want to specify stop time at 240 secs; however, software refused.

Thanks friends

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