FPS - Branch Lines -- Bottom Tap vs top Tap

[TECMSC]

The FPS is a dry type. The situation: the pipe is filled with water and drained during testing. Is it better to tap the branch lines out the top or bottom of the main lines?

My initial thought is to tap the branch out the top and the air can act as a cushion to keep the water out of the branch. On second thought, if the piping is under pressure I would think the water will make its way into the branch line regardless of bottom or top tap.

Thanks in advance for any comments.

 

[budt]

It has to defy gravity to get to the top unless the line is completely full of water.

Vapor will still go out the top tapped line but no condensed moisture will exit there.


Bud Trinkel CFPE
HYDRA-PNEU CONSULTING, INC.
fluidpower1 @ hotmail.com

http://www.fluidpower1.us

 

[pipedream]

is FPS = fire protection service?

G3

 

[budt]

Yes!

But it is also Fluid Power Society.

You can find their site at

http://www.ifps.org

They had to add the "I" because Fire Protection.org beat them to fps.org. "I" is for International.


Bud Trinkel CFPE
HYDRA-PNEU CONSULTING, INC.
fluidpower1 @ hotmail.com

http://www.fluidpower1.us

 

[budt]

OOPS!

I just looked at the original post and find my answers are not answering what the poster was asking. I read Pneumatic into the question.

Must be Old Age, I'm not old just "Chronologically Gifted."


Bud Trinkel CFPE
HYDRA-PNEU CONSULTING, INC.
fluidpower1 @ hotmail.com

http://www.fluidpower1.us

 

[TECMSC]

at least i got a response!

My background is HVAC, but had to comment on a fire sprinkler system. taps are out the top.
thanks

 

[pipedream]

if this is a dry pipe sprinkler system the branch lines should come out of the top or sides and not the bottom.

side or top tap will allow drainage of the pipe as long as the proper slope is applied to the piping.

the branch lines will have either upright heads, dry pendent heads, or pendent heads on return bends in a heated location.

if the taps come off of the bottom of the main sediments will collect in the pipes and could plug heads or piping.

G3

 

[TECMSC]

Thanks for the reply and a few ideas to consider.
TC