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Avoiding a vacuum when draining a pipe with no High point vent
The pipe is in place already and without removing the pullhead there is no way to insert a new pipe or tube. The 1/2" port has a 1m long tube on the inside but I feel this won't be long enough.- AngusH
- Post #6
- Forum: Pipelines, Piping and Fluid Mechanics engineering
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Avoiding a vacuum when draining a pipe with no High point vent
The only access to tie in to the pipe is through the pullhead at the location of the draining area. The issue with this is that I think if the 1/2" was used to inject pressurised air the 2" would just suck it back out as they are close together (opposite side of the diameter). Or am I...- AngusH
- Post #4
- Forum: Pipelines, Piping and Fluid Mechanics engineering
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Avoiding a vacuum when draining a pipe with no High point vent
Hi all, I have a problem I cannot get a simple answer to. I need to drain a pipe (diameter 450mm) that has been brought over a structure and back to working level where it will be drained. This structure is creating a head of around 35m from the top to the draining level. Due to design there...- AngusH
- Thread
- Replies: 8
- Forum: Pipelines, Piping and Fluid Mechanics engineering
