below is a snippet from an EPANET file containing a valve:
;ID Node1 Node2 Diameter Type
1 1 2 12
PRV 0 0 ;
Looking at your screenshot, I cannot see the type definition of your
valve. May it be that you've forgotten
to specify the valve type and the diameter?
Regarding your modified model (you converted the valves back to
junctions): I had a similar problem
(Model runs in Windows EPANET, but not from ArcView) and I was able to
track down the problem using the epanet
commandline version. However, this requires that I can reproduce the
problem first. Note that you can
run the model in Windows EPANET and load the results to ArcView.
The ArcView error message
"A(n) Nil object not recognized"
is pretty generic and only indicates that ArcView or the DC Water Design
Extension is not getting what it
expects at one point.
Tip 1: Copying the error message as text and pasting it to your email will
drastically reduce the message size
and will allow you and others to search for this error message.
In your case, the error message was
Input Error 201: syntax error in following line of [Valve] section:
Tip 2: Describe what you want to do. You didn't mention what kind of valve
you want to model
The DC Water Design Extension mentions 8 different types of valves with
quite a different behaviour.
Not knowing what you need, I cannot help you.
Tip 3: Provide me with the necessary data to reproduce (and eventually fix
Tip 4: Address the mailing list. You may get much faster support from
others working around the globe sharing
the same experiences as you. Most probably we'll also prevent others from
having the same frustrating experiences
as you have. However send network data to me individually (or other which
Tip 5: Always mention the versio number of the Software you're using. I
assume you're using the DC Water Design
Tip 6: Don't mention that your support request is urgent. These cases I
only solve at the end of the day.