how to check leak?

Discussion on general flowbench design
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xxw589
Posts: 8
Joined: Sun Oct 30, 2011 7:12 pm

how to check leak?

Post by xxw589 »

How do you guys check the leakage in your flow bench? bubble solution?

How to measure the amount of leakage?

Thanks
Flash
Posts: 778
Joined: Thu Feb 25, 2010 3:39 pm

Re: how to check leak?

Post by Flash »

xxw589 wrote:How do you guys check the leakage in your flow bench? bubble solution?

How to measure the amount of leakage?

Thanks
Are you looking for an exact persentage of leak?????????
More info:

what material is it made of.
if wood, is it sealed aka painted.
Who make this bench.
How many inches of vac, are you trying to pull/push through this bench
Gordon
jfholm
Posts: 1628
Joined: Fri Feb 19, 2010 7:36 pm
Location: Grantsville, Utah 45 min west of Salt Lake City

Re: how to check leak?

Post by jfholm »

One way is to have your bench on intake mode and then seal off the hole where you mount your head you are testing. Slowly turn up your vacuum source and check your flow meter. If it shows zero flow on your flow meter then it probably has no leaks. If you show air flow even if you have the hole blocked then you have a leak someplace.

On the exhaust direction you can once again block off the hole, put something heavy on it so is stays put, and then again turn up the vacuum source and check your flow meter. Then you can also spray a soapy water solution around and see if there are bubbles.

John
xxw589
Posts: 8
Joined: Sun Oct 30, 2011 7:12 pm

Re: how to check leak?

Post by xxw589 »

jfholm wrote:One way is to have your bench on intake mode and then seal off the hole where you mount your head you are testing. Slowly turn up your vacuum source and check your flow meter. If it shows zero flow on your flow meter then it probably has no leaks. If you show air flow even if you have the hole blocked then you have a leak someplace.

On the exhaust direction you can once again block off the hole, put something heavy on it so is stays put, and then again turn up the vacuum source and check your flow meter. Then you can also spray a soapy water solution around and see if there are bubbles.

John
thanks, that is the way I am using.
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