Originally Posted By: wwarner
This post was automatically imported from our archived forum.
Anyone know what minimum length of fuel supply drip leg should be on propane service?
–
Bill
It's only Rock 'n Roll.... but I like it!
Anyone know what minimum length of fuel supply drip leg should be on propane service?
It's only Rock 'n Roll.... but I like it!
Originally Posted By: dvalley
This post was automatically imported from our archived forum.
William,
As far as I know, there is no national code as far as length requirements go. I?ve seen these legs measure anywhere from 1 inch to 6 inches. I would suggest looking at the manufacturer?s installation directions (if they can be located). These should include the length requirements for proper sizing and correct installation of the drip leg for a particular appliance in question.
I?ve never paid attention to the length of these legs. As long as they are installed, I?ve never made an issue out of it. If there?s a code, it?s new to me.
--
David Valley
MAB Member
Massachusetts Certified Home Inspections
http://www.masscertified.com
"Some cause happiness wherever they go; others, whenever they go."
Originally Posted By: wwarner
This post was automatically imported from our archived forum.
Thanks David,
That's what I thought, I've just never seen one this short before (1")
--
Bill
It's only Rock 'n Roll.... but I like it!
Originally Posted By: jsavino
This post was automatically imported from our archived forum.
William, I have never seen drip legs on propane. They use soft rolled copper tubing with flair fitting around here.
John
Originally Posted By: wwarner
This post was automatically imported from our archived forum.
Holy cr@p!!!
I’m glad you said that John!
Now I remember reading somewhere that cast iron is NOT allowed for propane supply!
I thought something was wrong but couldn’t put my finger on it!
Thanks a million!
Ah yes... this wasn't where I saw it, but code check HVAC backs me up!
Just didn't put 2 and 2 together for some reason!
--
Bill
It's only Rock 'n Roll.... but I like it!
Originally Posted By: jpeck
This post was automatically imported from our archived forum.
Cast iron?
–
Jerry Peck
South Florida
Originally Posted By: wwarner
This post was automatically imported from our archived forum.
Yes, as a supply line to furnace. Copper was at the tank. Not able to view splice.
Shut off valve could only be reached by removing two panels and some screws!
–
Bill
It's only Rock 'n Roll.... but I like it!
Originally Posted By: wrobedeau
This post was automatically imported from our archived forum.
| Quote: |
| SECTION 408 (IFGC)
DRIPS AND SLOPED PIPING 408.1 Slopes. Piping for other than dry gas conditions shall be sloped not less than 1/4 inch in 15 feet (6.3 mm in 4572 mm) to prevent traps. 408.2 Drips. Where wet gas exists, a drip shall be provided at any point in the line of pipe where condensate could collect. A drip shall also be provided at the outlet of the meter and shall be installed so as to constitute a trap wherein an accumulation of condensate will shut off the flow of gas before the condensate will run back into the meter. 408.3 Location of drips. Drips shall be provided with ready access to permit cleaning or emptying. A drip shall not be located where the condensate is subject to freezing. 408.4 Sediment trap. Where a sediment trap is not incorporated as part of the gas utilization equipment, a sediment trap shall be installed downstream of the equipment shutoff valve as close to the inlet of the equipment as practical. The sediment trap shall be either a tee fitting with a capped nipple in the bottom opening of the run of the tee or other device approved as an effective sediment trap. Illuminating appliances, ranges, clothes dryers and outdoor grills need not be so equipped. |
It appears no length is stated.
Bill Robedeau
Originally Posted By: cradan
This post was automatically imported from our archived forum.
Bill, are you sure it was cast, vice black metal (carbon steel)?
–
Chris
http://www.inspect4me.com
Chicago Illinois Home Inspections
Originally Posted By: wrobedeau
This post was automatically imported from our archived forum.
I am not certain what your point is. The posting is from the the International Fuel Gas Code and is a generic chapter under piping. If you read the code it covers steel, copper and plastic piping.
Bill Robedeau
Originally Posted By: jpeck
This post was automatically imported from our archived forum.
| wrobedeau wrote: |
| I am not certain what your point is. The posting is from the the International Fuel Gas Code and is a generic chapter under piping. If you read the code it covers steel, copper and plastic piping.
Bill Robedeau |
Because "cast iron" and "steel" pipe is not the same thing.
--
Jerry Peck
South Florida
Originally Posted By: wwarner
This post was automatically imported from our archived forum.
I think Chris was asking me.
Yes, the elbows and drip leg were definately cast. Rusted in areas. Now part of the supply line may not have been, I'm not sure. I recommended a full eval. of supply line to assure compliance.
Thanks Bill for the codes, I now know! 
--
Bill
It's only Rock 'n Roll.... but I like it!
Originally Posted By: wrobedeau
This post was automatically imported from our archived forum.
Sorry Christopher I was responding to the first question and did not notice the reference to Cast Iron until this morning.
Bill Robedeau   
Originally Posted By: jrabanus
This post was automatically imported from our archived forum.
Ok dumb question(s),
What does propane do to cast iron pipe? Also why isn't hard sweat copper lines not used in gas lines?
Josh Rabanus
Precision Inspections
Originally Posted By: Rich Clos
This post was automatically imported from our archived forum.
There is no ‘cast iron’ pipe used for fossil fuel equipment that I’m aware of. It is black IRON pipe, in other words, steel. Cast Iron is extremely brittle and in 28 years being in HVAC I have never even heard of it.
Cast Iron pipe is/was only used for sewage pipe and radiators.
Rich
Originally Posted By: wwarner
This post was automatically imported from our archived forum.
| Quote: |
| in HVAC I have never even heard of it. |
Neither had I. Was just a small section that I saw.
That whole place was pieced together with scrap and parts by Johny Hilljack. Amazing what lengths they go to in order to make a so called short cut.
No longer standing now. Was demolished shortly thereafter.
It looked decent from the outside though.[/quote]
--
Bill
It's only Rock 'n Roll.... but I like it!
Originally Posted By: Rich Clos
This post was automatically imported from our archived forum.
Hi Bill,
I just noticed your name, one of my best friend has your name, spelled the same way. He lives in Berlin Heights, Ohio
Small world indeed!
Rich
Originally Posted By: roconnor
This post was automatically imported from our archived forum.
I am used to seeing a 3" drip leg … thats pretty standard, but I just don’t see that requirement in the model codes.
–
Robert O’Connor, PE
Eagle Engineering ?
Eagle Eye Inspections ?
NACHI Education Committee
I am absolutely amazed sometimes by how much thought goes into doing things wrong
Originally Posted By: cbuell
This post was automatically imported from our archived forum.
| Quote: |
|
Black Steel Pipe
When steel pipe is forged, a black oxide scale forms on its surface to give it the finish we see on this type of pipe. Because steel is subject to rust and corrosion, the factory also coats it with protective oil. It is used for gas distribution inside and outside the house, and for hot water circulation in boiler systems. It is not used for potable water, or for drain waste, or vent lines. It is sold in standard 21-foot lengths TBE. Black pipe is cut and threaded to fit the job. Fittings for this type of pipe are of black malleable (soft) cast iron. |
--
It is easier to change direction than it is to forget where one has been.
Originally Posted By: roconnor
This post was automatically imported from our archived forum.
| IRC Part VI - Fuel Gas ... wrote: |
|
G2413.4.1 Cast iron
Cast-iron pipe shall not be used |
--
Robert O'Connor, PE
Eagle Engineering ?
Eagle Eye Inspections ?
NACHI Education Committee
I am absolutely amazed sometimes by how much thought goes into doing things wrong