Dropped header

jackchips_2

the place to get it Mitch and you got it from the best.

Mitch_6

Dropped header

I have seen several steam boiler installs with dropped headers. Usually done by 90's int 45's off the risers from the boilers. I under stand that this is done to help keep the steam drier or to compensate for the Height of the horizontal runs to the height of the water line in the boiler since we usually like a strait rise of about 24".

One new job I just went to they had lots of room for rise. Went up 24" from the water line 90 over 90 down 12" did the header then up into the horizontal runs for the radiation all else looked normal.

Why would they drop so far, system is not running yet so I do not know how it will perform.

Mitch S.

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Mad Dog_2

Even drier steam.........................

the more you bounce around that exiting steam the drier its goes out....or it just could have been what they had on the truck. Mad Dog

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Steamhead (in transit)

And

a dropped header is much easier to put together because of the extra swing joints. Those extra swing joints also allow the header to take up expansion and contraction better than a header without them.

It just makes sense to drop any header on any boiler that requires two or more risers to the header. The extra cost is minimal and the benefits can be huge.

Dropping 12 inches may have allowed them to use the pipe nipples they had in stock, as Mad Dog says. But it can't hurt to do that unless the header ends up real close to the boiler's waterline.

Here are some more examples of dropped headers. On some of these there was more than enough headroom for a standard header, but the ease of installation played a big part. Follow this link:

http://www.heatinghelp.com/library.cfm#Steam Piping

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Phil_6

swing joints

It really is SO much easier to get the header together with a drop header. Especially on a bigger boiler with say a 3in header. I tried it once a couple of years ago, and now I do them all like that.

Mitch_6

Since they are not shown in the

installation manuals any good place to find information on them.

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Mitch_6

Thanks Jack

I know this is the place I come here every day. The basic question is since the manufacturers do not show a dropped header in there literature is there any good reference on there design. I have not found much in "Lost Art" on this item. I have seen them done just with tee's into 45's but this was the first time I saw double 90's.

I am not big on experimentation so I am looking for a good reference.

Thanks,
Mitch S.

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Steamhead (in transit)

Burnham does

check out the I&O manuals and piping diagrams for their Independence series steamers. These are available online at www.burnham.com . The ones I've seen even give a materials list!

If you have trouble locating them, get in touch with Glenn Stanton at Burnham- one of the industry's best.

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