Skip to main content ↑ ↓
Topic: Where are folks buying pneumatic fittings? (Read 561 times) previous topic - next topic

Where are folks buying pneumatic fittings?

Will be purchasing some soon for the HWH system so I thought I'd ask.  ;D

Hope everyone is having a great evening.
Scott & Carol Seibert
2001 42' double slide U320 - Sold
Previous - 2002 36' U320

Re: Where are folks buying pneumatic fittings?

Reply #1 –
Napa or my local truck supply. Look online for a Gates catalog.
1994 U280
Build #4451
"If everyone is thinking alike, then somebody isn't thinking"

Re: Where are folks buying pneumatic fittings?

Reply #2 –
I like the old barrel and ferrule fittings. Our international and freightliner trucks have push locks and we chase leaks for ever.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Where are folks buying pneumatic fittings?

Reply #3 –
I used brass fittings.  Got some at the local hardware store, most at Amazon.  I did get some push on fitting.  Tried a push on check valve with some other parts at 100 psi in a bucket of water for a week.  Lost 7 psi.  I used then on the tank drain lines.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Where are folks buying pneumatic fittings?

Reply #4 –
McMaster-Carr has DOT fitting in compression and push-in styles: McMaster-Carr
Greg & Cathy
2000 U320 4010 DGFE Build #5650
Had: 1999 Tradewinds 7370

Re: Where are folks buying pneumatic fittings?

Reply #5 –
You need to make sure that the fittings are DOT fittings. Regular ferule fittings from Ace are not DOT fittings.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Where are folks buying pneumatic fittings?

Reply #6 –
I used brass fittings, ferrules and tubing inserts on all of the HWH side of things.  I have a selection of push on fittings too, many from FT.  All of the tubing is DOT nylon brake line tubing.  I didn't do anything with the brake lines or fittings.  Probably a good idea to use DOT approved fittings on any brake lines.

The McMaster-Carr DOT brass compression fittings appear to not have any tubing inserts.  They are not significantly more expensive than high quality fittings from other sources. 
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Where are folks buying pneumatic fittings?

Reply #7 –
You have to use DOT fittings on all air fittings as if a fitting fails it will affect your brakes.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Where are folks buying pneumatic fittings?

Reply #8 –
I agree with Ron on tubing connections. HWH fittings are all Parker DOT fittings.  But then on our coaches there are high pressure brass Tees and Crosses that do not have a DOT rating, check valves, nipples, water separators, step and slide cover valves and fittings, air cylinders that leak all the time.  Use the best you can get.  The DOT rating does not increase the price significantly.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN