What compressor is the most reliable with minimal use?

[$p00kygH0ST]

Not being a wiseguy, what airgun has a “welded” end cap? Just curious. I have only been into PCP’s for maybe 3 years and have looked at a lot of guns with tube style tanks, but none appeared to be welded, but that doesn’t mean there aren’t any. Being a welder my entire career, I pick up on weded assemblies fairly readily. And having weded many high pressure assemblies for the oil and gas industry I can attest to highly engineered and tested/qualified weld techniques and qualifed welders. HP is nothing to second guess. While I worked in the dive industry I had access to some very interesting and fatal mistakes divers made when they built their own stuff. Makes for good reading.

Crude. But, I'm at work using the edge of a card with a 75mm scale on one edge.

 

[rcs9250]

Crude. But, I'm at work using the edge of a card with a 75mm scale on one edge.

View attachment 476894

OK, threads and then weld for gas seal. Different than typical construction but I guess that will work. I have no comment on the wall thickness because I have no training in that area. 7075 aluminum I believe is stronger but it is not weldable. I presume the reg end is threaded with maybe an O ring for sealing (drawing doesn’t show that end).

 

[$p00kygH0ST]

Yep. Grubs, thread and 20x3 UOR

 

[$p00kygH0ST]

OK, threads and then weld for gas seal. Different than typical construction but I guess that will work. I have no comment on the wall thickness because I have no training in that area. 7075 aluminum I believe is stronger but it is not weldable. I presume the reg end is threaded with maybe an O ring for sealing (drawing doesn’t show that end).

You might find this interesting... 7075 welds. https://newatlas.com/welding-aa7075-aluminum-alloy/58449/

 

[rcs9250]

You might find this interesting... 7075 welds. https://newatlas.com/welding-aa7075-aluminum-alloy/58449/

Interesting. Still in the early stages.

 

[$p00kygH0ST]

Interesting. Still in the early stages.

At $125 for 10 1/16rods they can forget it for now. I'm sure it'd be DCEP same settings any other AL. Wait for the oxides to burn off there's a nice shiny pool and work fast. Too likely to destroy the work. 6061/3 or just accept threaded is best.