The defense team expects to receive all of the documents and evidence in the coming week. The Strange Case of the Christian Zionist Terrorist Creede Newton December 14, 2014 And I was lucky enough to receive an invitation to stay at Easter Elchies House, the spiritual home at The Macallan.
Rating Newest Oldest. Best Answer: Gas lines are usually controlled with ball valves which have a ball in the middle of them attached to a handle. There is a hole through the ball which is in line with the handle. When the handle is in line with the pipe and more correctly in line with the flow, the valve is open.
The word is derived from the Latin valva, the moving part of a door, in turn from volvere, to turn, roll. The simplest, and very ancient, valve is simply a freely hinged flap which drops to obstruct fluid (gas or liquid) flow in one direction, but is pushed open by flow in the opposite direction. This is called a check valve, as it prevents or checks the flow in one direction.