Steam Piping - How to

DMC

Where can I find general guidelines for running steam piping?  When running a LPS line, I understand that the steam line pitches from the mechanical room towards the equipment requiring steam.  If the pipe main needs to rise, an F&T trap can push any condensate into the LPR line. (correct so far?)

What about the LPR line?  That pitches from the last steam coil down back to the mechanical room?  What if the LPR line needs to rise?  If a trap is added, where does this condensate need to go?  If a trap is added, what keeps all condensate from entering the trap and not continuing back to the mechanical room?

Thanks,

The Steam Rookie

World Plumber

Steamy deal

I would advise purchasing the steamy deal on this sight and considering the Dead Men Don't Lie class. Click on shop above. Also read under systems.

  MC 

DMC

Commercial, Residential or both

Thanks for the response.  Do these books deal with commercial applications or are they geared more towards residential?  I need the commercial application.  Thanks!

Dave in QCA

steam piping

Take a look at this link.  It has some basic systems.

http://www.bellgossett.com/literature/files/7250.pdf



However, in low pressure steam systems, especially systems where the steam pressure is not continuously maintained, all steam piping should pitch away from the boiler.  If the layout requires a low point midway in the piping because it turn up to a higher level, then that low point must be trapped, to let the condensate drain out.  Traps go out the outlet of all steam using devices.

The return piping, must be vented.  If it is flowing back into the boiler directly (gravity return) it must have some type of vent device.  If it is flowing into a condensate receiver tank, then the tank vent provides the venting.  All condensate lines must be pitched, without low points that could trap water, because the return line also must enable for the free passage of air.  Traps do not belong midway in a return line.  Usually, if a return line requires a lift, a condensate receiver is used as a collection point.

Other types of systems, running at at continuous pressures of 5 psi for example, make it possible for condensate lines to be located above the steam line, and for some amount of lift to occur.  But, these are usually only seen in very large commercial, institutional, or process steam systems.

jpf321

great resource dave ... my personal reading list includes...

Dave, that's a great piece of literature .. thanks for sharing ..



Here's a few of my personal fav's on the subject:

Heating and Ventilation: http://is.gd/kbA6v

Modern Plumbing, Steam and HW Heating: http://is.gd/kbAN9

Moderns HW, Steam and Gas fitting: http://is.gd/kbASj

Heat, Science, Philosophy, Production, Application: http://is.gd/kbAYR (Mills)

Baldwin on Heating: http://is.gd/kbBel

Steam Heating Data: http://is.gd/kbBhh

Ventilation, Heating and Managment of Churches and Public Bldgs: http://is.gd/kbBp5

Essay on the Heating and Venting of Public Bldgs: http://is.gd/kbBv5

"Title almost almost as long as the book", 602pages: http://is.gd/kbBEi

And a few others ... but that should get you started ..

TomM

thanks

*bookmarked* ........thank you