Drop Header?

Richard D._2

What is the proper way to pipe a dropheader??Close nipples or is there a rule to follow!
Thankyou for your help...Richard

[Deleted User]

we use close nipples

or the next size up...but we also use 4'' fittings..

Richard D._2

Why

go up to 4" fittings?? You find it works better???
Thanks for your reply..Richard

[Deleted User]

we try to slow

the velocity of the exiting steam and the biggest we can thread is 4''...weve been using 4'' discharge dunkirks just for this reason..i'll try to attach a picture of one..opps, that boiler was the last boiler we used a 3'' header..after that job we started using 4'' for not just the risers but also the header..i'll have to rumage for a picture.

Richard D._2

Thanks

for your time.I'll being that drop header job ina week or so.. Richard

Unknown

I just use

4 street ells - just enough to drop the 2 boiler headers and make the swing for easy connection .

Richard D._2

THANKS Gerry and Ron

Putting a Dunkirk in.With a drop header.It is a counterflow
steam and the pics I ve found so far have shown a drop header. for that type of install....Thanks for your pics they are killer.."Great piping from great installers I would say"!!!!I'll show you mine cause you showed me yours ..Later and THANKS for the help..As Taco says do it once do it right!!! Richard

[Deleted User]

hey richard

Noel from Slantfin posted a drawing of the piping for a counterflow system utilizing a drop header..i'll try to attach it..me and attachments don't seem to like each other...i saved the drawing for reference and thought you might like it also..thanks noel...

Richard D._2

Noel

Like Gerry said you had a great pic..That will be a great looking pipe job in the flesh..I sometimes ask too many questions but I have this thing with the NEED to know about the whys and the why nots...Thanks again allof you for your time .But that is we are used to at the wall... Richard

JM_2

test

test

Dave_16

What purpose????

Does a drop header serve? And when shouild it be used?
Excuse my ignorance. Thanks, Frank

Richard D._2

Hey Frank

no problem here,,I am learning too..Been in the trade 25 + years..Never did a drop header before here..Doing one soon..These guys are great and will go out of their way to help!!They even draw pics for you and send photos of their jobs..I m toldthe a drop header slows the flow of steam leaving dry steam..Also great when you can not get the rise you need.They look good to.. :)The wallies willteel it all..Good luck and happy holidays Richard

[Deleted User]

it dries the steam out

better than a flat header..but it has a couple of side benifits, it makes it a non-issue of ceiling height,,and its actually easier to install the header because of the swing joints at the top...win-win situation.

[Deleted User]

found my 4'' picture

these things get lost in the computer..

Richard D._2

Hey Gerry

That is a killer header..You must have some big guys to turn those wrenches lol...Thanks Richard