[RussWhite]

    [attachment=3630]  Hi Douglas ,

 Let me see if I can sufficiently confuse you :-)

 You actually posted a picture of the operator, not the "valve"

 Let me say as I have been trying to say, not all Newells  are the same, but this is how mine works. 

 That operator is very similar to an old choke cable .   It operates a flap on the exterior of the coach that opens and closes the passage to the dryer vent .

 I think it's a neat feature as the flap is painted to match the coach and not plastic and subject to some damage as so many dryer vents are .

 Here is a picture of mine in the open position.   If you look closely you should see the reflection of a palm tree .   Life can be very good In a Newell or Foretravel  for that matter if you have it parked in the right place .