If the sealing face are in good condition....
Just drill the center out a it for air to pass....
This happen when you go gorilla on the fitting... needs only to be tight enough to seal!!!
Don't over tighten..
If you have to torque it done.. then the faces of the insert are uneven... so drill it out!
I have turned down a ton of these on my lathe......so if you know a friend with a lathe.....
Stuart
I can say that I was not the Gorilla with the wrench. The hoses with constrictions all came that way from the "factory" with the inner washer crushed. With the worst blocked one that was on the newest hose introduced to the system, the gauge on the tank was increasing extremely slow, but the one on the compressor was increasing fast, which told me something was blocked. So, after fixing that worst one, and seeing air finally flowing into the tank at a reasonable rate, I checked every "factory" hose connection and found that all but 2 of 6 hoses had the washers on both ends crushed to the point of seriously constricting the air flow. The photo at the end looks like most of them. I didn't get a photo of the worst one that started the quest.
With them all drilled out, the fill rate on my 60min Scott SCBA increased about 3x vs the rate of fill with just the worst one fixed.
Good idea to face the fittings! My neighbor has vintage 36" South Bend in his garage with all the goodies, a retired gunsmith, but sadly, since he retired and moved to his new home about 15 years ago, he never hooked up the lathe!
SS, Thanks for that link - great price - sure beats $4 each. I am going to get the PTFE and some nylon washers to try. I have other uses for those PTFE washers. It looks like my original guess was right - they are made of Teflon but the sellers don't use the trademark name, rather the generic one.
I dislike the delrin inserts that crush and sometimes block airflow. I use dowty or bonded washer where possible
Dowty Sealing Washers are designed to seal male BSP fittings in flat-faced ports. If the female BSP port does not have a chamfer for an O-ring, use a Dowty washer.
www.pegasusautoracing.com
jarmstrong - I agree with the bonded washers being the best of the bunch. None of the connections I have with those washers have ever leaked. Unfortunately, some connectors won't work with them as they bottom out before the connector contacts the washer.
Here is a photo showing the average size of the hole in the middle of the PTFE washers. No visible hole could be seen with the worst one. Thanks again to everyone who has helped me on this.
