Valve gear is about wrapped up, I need to start thinking about chassis on air.
I see flare fittings are recommended in the smokebox, there are 37 degree and 45 degree flares, The 37 supposedly holds more pressure but requires sleeves.
What are folks successfully using?
thanks
flare fittings - which angle?
- Bill Shields
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Re: flare fittings - which angle?
Whatever I have in the bucket of fittings. At our pressures it makes no difference
Too many things going on to bother listing them.
Re: flare fittings - which angle?
As Bill says, pressures are not high enough to influence your choice.
That said, the JIC (37°) flare is mechanically more robust that the SAE (45°) flare, and better resists vibration.
That said, the JIC (37°) flare is mechanically more robust that the SAE (45°) flare, and better resists vibration.
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Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
Re: flare fittings - which angle?
As hydraulic pressures increased in the 30' & 40's heavier wall steel lines were prone to cracking if flared to 45 degrees. The 37 degree fitting superceded the 45 degree for most flared hydraulic fitting. The 45 degree is common in automotive and refrigeration applications. Parker used to tell us 45 was superior for sealing but 37 was the maximum for steel but they never published anything on this. The sleeve helps align the tube and resist vibration.
For a smoke box either will work.
For a smoke box either will work.