Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×


Reply
 
Thread Tools Display Modes
 
Old 10-20-2017, 04:03 PM   #21
Bus Geek
 
Jolly Roger bus 223's Avatar
 
Join Date: Sep 2017
Location: Swansboro,NC
Posts: 2,973
Year: 86
Coachwork: Thomas
Chassis: Ford B700
Engine: 8.2
Rated Cap: 60 bodies
It did to me also when I started the job. And that's why I know I have my old servicemans handbook handy right now caise I had to find it to verify the engineers sizing. I did change the pipe size between the first stage regulator to the second stage regulator which was all underground but it was copper tubing. The rest was black steel.
Fired everything up yesterday and all run just fine and the ones on the ends aren't showing sign of lacking fuel or pressure?

Jolly Roger bus 223 is offline   Reply With Quote
Old 10-20-2017, 04:07 PM   #22
Bus Geek
 
Jolly Roger bus 223's Avatar
 
Join Date: Sep 2017
Location: Swansboro,NC
Posts: 2,973
Year: 86
Coachwork: Thomas
Chassis: Ford B700
Engine: 8.2
Rated Cap: 60 bodies
You can also Google international fuel gas code table 402.4(3) to get charts for sizing.
That's what every engineer is supposed to size buy.
All construction codes are the international code books but with each state's amendments.
Good luck
Jolly Roger bus 223 is offline   Reply With Quote
Old 10-20-2017, 04:47 PM   #23
Bus Geek
 
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
Quote:
Originally Posted by PNW_Steve View Post

Here is a sizing chart: https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.lp-gasequipment.com/products/pdf/LPGas_Cat2010_p157-175.pdf&ved=0ahUKEwjRg4P43P_WAhXqzVQKHbUPCMsQFgg9M AA&usg=AOvVaw2TD1XBE3fznVu_idnxvrcV
See above link....
PNW_Steve is offline   Reply With Quote
Old 10-20-2017, 05:33 PM   #24
Bus Geek
 
Jolly Roger bus 223's Avatar
 
Join Date: Sep 2017
Location: Swansboro,NC
Posts: 2,973
Year: 86
Coachwork: Thomas
Chassis: Ford B700
Engine: 8.2
Rated Cap: 60 bodies
Quote:
Originally Posted by PNW_Steve View Post
See above link....
Sorry
Wasn't trying to step on your toes?
I didn't look at your link cause I have had my handbook in my face for several of jobs in the last couple of months?
If you tell me I need to update my book I will understand cause it is about 20-years old? But the principles are still the same.
Unless they have upgraded the type/or content of additive they use to keep the moisture out of the tank.
I can only propose that there be a drip/dirt leg with cap at any turn up into an appliance with a valve opened normally into a 6" nipple with cap and closed to drain the moisture by pulling the cap and or nipple.
Jolly Roger bus 223 is offline   Reply With Quote
Old 10-20-2017, 06:03 PM   #25
Traveling
 
Join Date: Nov 2015
Location: Midwest
Posts: 2,573
Year: 2003
Coachwork: BlueBird
Chassis: TC2000
Engine: 5.9L Cummins
Rated Cap: '00
fixed link

Quote:
Originally Posted by PNW_Steve View Post
See above link....
http://www.lp-gasequipment.com/produ...0_p157-175.pdf
Rusty is offline   Reply With Quote
Old 10-22-2017, 04:01 AM   #26
Mini-Skoolie
 
Join Date: Jul 2017
Posts: 38
realistically. Engineering aside. You ever use a tiger torch? Im pretty sure all of ours are only 3/8 pipe and you get one hell of a flame. You could probably go that small with no issues. But tbh its waaay easier of find fittings in half inch so its a better bet there for sure. Schedule 40 pipe is plenty. If the engineer codebook says go higher than follow it. Im merely looking at the practical and logical side.
12equiem is offline   Reply With Quote
Old 10-22-2017, 07:54 AM   #27
Bus Geek
 
Join Date: Nov 2016
Posts: 2,775
Bigger than spec is always fine.

But several concurrent high volume appliances over a long distance, do the math to check.
john61ct is offline   Reply With Quote
Old 02-17-2018, 02:35 AM   #28
Bus Nut
 
golfersmurf57's Avatar
 
Join Date: Sep 2017
Posts: 386
Quote:
Originally Posted by ATRaven View Post
What kind of piping should be used to pipe propane gas?
Thank ya'll
I'm gonna toss my nickel in the pot. Black iron is best but be advised this is a moving vehicle and subject to.bumps. buy some coated bundle clamps that fit the pipe and clamp it securely to the bus body or chassis if necessary split a piece of heater hose and then clamp the pipe so it won't run or chafe or you'll be inspecting your system rather than enjoying your RV. Elbows won't be a problem unless you over design the system. I worked on propane lift truck systems for years and the majority of leaks came from the tank couplers and failure to use Teflon tape. Loctite 271 is a liquid pipe dope and won't allow looseniby on the joint is tight. Aeroquip reusable ends on stratoflex hose has held up for ten years or more in an automotive app

Sent from my LGL64VL using Tapatalk
golfersmurf57 is offline   Reply With Quote
Old 05-09-2019, 11:17 PM   #29
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 10,482
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
I see the talk about black pipe for "long runs". I need to go about 6' before a splitter to the stove and water heater. Do I want to splice in a length of black pipe when I can get a single manufactured LP hose, and spice in 2 more places for possible leaks. I have a bunch of left over 1' heater hose I could wrap in in as it runs along the frame rail. Am I on the right track?



https://pantherrvproducts.com/marsha...3-8-female-84/
o1marc is offline   Reply With Quote
Old 05-10-2019, 12:02 AM   #30
Bus Geek
 
Join Date: Nov 2016
Posts: 2,775
I never keep rubber hoses past 2 years.

Do it in copper, unless the appliance needs to move around a lot.

Doesn't need routine replacement, easier to test for leaks, cracking.
john61ct is offline   Reply With Quote
Old 05-11-2019, 02:23 PM   #31
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 10,482
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
So I got a roll of 3/8" copper gas line. Are compression fittings exceptable on that line, or should it be a flare?
o1marc is offline   Reply With Quote
Old 05-11-2019, 02:45 PM   #32
Bus Crazy
 
HazMatt's Avatar
 
Join Date: Oct 2017
Location: E Central Tejas
Posts: 2,094
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
It may be my own styling sensibilities, but
Quote:
Originally Posted by o1marc View Post
So I got a roll of 3/8" copper gas line. Are compression fittings exceptable on that line, or should it be a flare?
I always try to go with flair.
__________________
Those who say that it cannot be done should not interrupt the people doing it.
HazMatt is offline   Reply With Quote
Old 05-12-2019, 02:25 AM   #33
Bus Geek
 
Join Date: Nov 2016
Posts: 2,775
Flared fittings and adaptors are fine, just be careful, you're actually stretching the metal,

good compression joints are less likely to crack
john61ct is offline   Reply With Quote
Old 05-12-2019, 08:44 AM   #34
Bus Crazy
 
Sleddgracer's Avatar
 
Join Date: Nov 2018
Location: south east BC, close to the Canadian/US border
Posts: 2,265
Year: 1975
Coachwork: Chevy
Chassis: 8 window
Engine: 454 LS7
Rated Cap: 24,500
Quote:
Originally Posted by o1marc View Post
So I got a roll of 3/8" copper gas line. Are compression fittings exceptable on that line, or should it be a flare?
'Copper tube used for propane, liquefied petroleum gas, or natural gas may use flared brass fittings of single 45°-flare type, according to NFPA 54/ANSI. Z223.1 National Fuel Gas Code.'

https://en.wikipedia.org/wiki/Flare_fitting
Sleddgracer is offline   Reply With Quote
Old 05-12-2019, 12:53 PM   #35
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 10,482
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
I guess I'll answer the question.Compression fittings are not allowed for gas lines.
o1marc is offline   Reply With Quote
Old 05-12-2019, 01:44 PM   #36
Bus Geek
 
Join Date: Nov 2016
Posts: 2,775
Interesting! So check your flares carefully for cracks.

Are the ANSI etc codes intended for homes the same standards used for RVs etc? I assume DOT's the relevant agency?

Or are things "self regulated" by voluntary industry member org certification?
john61ct is offline   Reply With Quote
Old 05-12-2019, 04:21 PM   #37
Bus Geek
 
Jolly Roger bus 223's Avatar
 
Join Date: Sep 2017
Location: Swansboro,NC
Posts: 2,973
Year: 86
Coachwork: Thomas
Chassis: Ford B700
Engine: 8.2
Rated Cap: 60 bodies
Quote:
Originally Posted by o1marc View Post
I guess I'll answer the question.Compression fittings are not allowed for gas lines.
correct.
standard flare is acceptable for a copper line.
for me personally soft copper doesnt belong in a moving vehicle unlless supported its entire length?
the reason why is that every time soft copper moves it work hardens itself and will eventually become hard enough at the supports it will break.
for any gas ridgid pipe with isolation sleeves at each penetion is ideal regardless of what type of pipe.
ridgid steel pipe is strictly recommended for any wall or floor penetratrations including isolation from building structure|movement[sleeve].
thats an opinion but i can show 20 years worth of LP gas mans hand books if needed?
Jolly Roger bus 223 is offline   Reply With Quote
Old 05-12-2019, 05:02 PM   #38
Bus Crazy
 
HazMatt's Avatar
 
Join Date: Oct 2017
Location: E Central Tejas
Posts: 2,094
Year: 1998
Coachwork: Thomas
Chassis: IH 3800, 8 window
Engine: T444E w/ Spicer 5-speed MT
Rated Cap: I prefer broad-brims hats
I hadn't considered that. Thank you!
(For one more thing to be paranoid about)

Quote:
Originally Posted by Jolly Roger bus 223 View Post
correct.
standard flare is acceptable for a copper line.
for me personally soft copper doesnt belong in a moving vehicle unlless supported its entire length?
the reason why is that every time soft copper moves it work hardens itself and will eventually become hard enough at the supports it will break.
for any gas ridgid pipe with isolation sleeves at each penetion is ideal regardless of what type of pipe.
ridgid steel pipe is strictly recommended for any wall or floor penetratrations including isolation from building structure|movement[sleeve].
thats an opinion but i can show 20 years worth of LP gas mans hand books if needed?
Is it possible to secure the Cu tube so rigidly that it won't vibrate? Don't know if a pile of tiny vibrations wouldn't have the same cumulative effects as fewer large stresses.
What would you substitute? SS tubing?
__________________
Those who say that it cannot be done should not interrupt the people doing it.
HazMatt is offline   Reply With Quote
Old 05-12-2019, 05:41 PM   #39
Bus Crazy
 
Sleddgracer's Avatar
 
Join Date: Nov 2018
Location: south east BC, close to the Canadian/US border
Posts: 2,265
Year: 1975
Coachwork: Chevy
Chassis: 8 window
Engine: 454 LS7
Rated Cap: 24,500
Quote:
Originally Posted by Jolly Roger bus 223 View Post
correct.
standard flare is acceptable for a copper line.
for me personally soft copper doesnt belong in a moving vehicle unlless supported its entire length?
the reason why is that every time soft copper moves it work hardens itself and will eventually become hard enough at the supports it will break.
for any gas ridgid pipe with isolation sleeves at each penetion is ideal regardless of what type of pipe.
ridgid steel pipe is strictly recommended for any wall or floor penetratrations including isolation from building structure|movement[sleeve].
thats an opinion but i can show 20 years worth of LP gas mans hand books if needed?
makes sense to me
Sleddgracer is offline   Reply With Quote
Old 05-12-2019, 08:07 PM   #40
Bus Geek
 
Join Date: Nov 2016
Posts: 2,775
Pretty sure SS needs a pro to install.

Which is not a bad idea.
john61ct is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 05:28 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.