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Topic: Check valve (Read 954 times) previous topic - next topic

Check valve

For some reason the search isn't working, so please bare with me if this is a duplicate.

Today I found a leak in the fittings going in and out of this check valve on line 57 that exits the aux air pump and goes to the wet tank.  I could not get the two push-on fittings to seal, so I removed it to replace the fittings.  Looking inside, I see some rust, so I tried to blow through it.  In the direction of the flow arrow, it's very hard to blow through. In the opposite direction, it's easier, so I'm guessing this has failed.  I can't find a cross reference based on the part numbers.  Anyone know what the specs are so I can replace it?

There is a Meritor WABCO sticker with part number 9341990020 which doesn't come up.  In the body it's stamped Midland N-13526-BR.

Keith
2003 U320 38' #6197

Re: Check valve

Reply #2 –
Keith, I may have a few spares, I'll check tomorrow. Jim.
Jim and Dona
2002 U295 36'
Lily, blue healer. Our fury person
Manx mid travel Ecotec turbo
2022 Bronco badlands Sasquatch
Trail 90 and 110cc

Re: Check valve

Reply #3 –
Quote from: fourdayoff –
Keith, I may have a few spares, I'll check tomorrow. Jim.
Thanks, but a replacement will be here Tuesday.  :)  I may need that water pump though...I couldn't fix the leak and the new one SAYS it won't be here until Friday.
Keith
2003 U320 38' #6197

Re: Check valve

Reply #4 –
I have the same issue with the press to connect fittings leaking after I reassembling the all the fittings when I installed the Service Bulletin C003300.002 It added a check valve between the control manifold and the filter.

When I check the Haldex check valve I have no resistance in either direction so I've ordered another one from NAPA KN23080 but I do question the push to connect fittings. Do others have issues with these? Was there a reason for use since this is the only application I see that uses them in the manifold.

I have the HWH AIR CONN DIAGRAM from 2004 and there is no check valve shown so it must have been added later.
Tyson
Tyson
2004 295 3610 WTFS
2010 Honda CR-V
Motorcade #18344
AA1DS

Re: Check valve

Reply #5 –
Quote from: Frontier Camping –
do question the push to connect fittings. Do others have issues with these?

I have had all of the problems above.  Wife can walk around coach and then holler at me. "You got another air leak"  As  I replace them I try and replace with the compression fittings. Some of the fittings I need I am not able to find in compression and go back with the same press on.  Only a mater of time before it leaks.
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago