Preferred Air Dryer

[Darkspeed]

What is the currently preferred Air Dryer if installing from scratch? AD-IS? AD9?

Thank you!

[luvrbus]

The AD-9 is the standard it seems for the older stuff,truck wrecking yard have those for 50 bucks +or - a few dollars 

[Darkspeed]

Thanks Clifford, any advantage to going with a more modern unit?

[luvrbus]

No

[Darkspeed]

Ok, Thank you!

[sledhead]

I did the ad9 2 years ago and all is good

dave

[Jim Eh.]

The only advantage to using a current day air dryer is most now have spin on desiccant cartridges. Makes servicing your air dryer a ton easier, but more expensive. However the cartridge doesn't have to replaced that often. Most here will not be putting on >5000 miles a year but there are a few.

[luvrbus]

Remember you are not married to Bendix the Haldex and Wabco are good dryers I forgot the model but I like Haldex some Prevost used

[Seangie]

I put the IS with the spin cartridge on this year.  Only reason was for availability and ease of changing the catridge.  Weve put 5-10k on the bus a year for the past two years.

I think I paid about 250 new.

-Sean

[TomC]

I have a Haldex on my my bus that works just fine. No problems. AD-9 on the truck. Good Luck, TomC

[moosemanusa]

does anyone have a pressure regulator/check valve before their air dryer?

I'm curious!

[Lee Bradley]

No.

[luvrbus]

No but you see a lot of Transit buses that had the air starter with a fast fill valve there it was a regulator/check valve

[moosemanusa]

perfect as i've removed mine.. I never use the fast fill so i'm happy..

the one installed was some horrible Webco that costs $400 and with no PSI setting I was having to guess the air flow!