RCA Adjustable Gas Key works as advertised
#4
Thanks, guys.

Montana - This key uses a double set screw configuration. Both have a heat resistant thread lock on them and all you do is find the Happy Place, and lock it with the second set screw. Again - both are kept secure with thread lock.

As far as how much motion on a fully shut down setting goes, I worked out that the Gas Key has about 1:8.7 the cylindrical surface area as the bolt. Assuming worst case 52kpsi, it comes out to about 1,300 lbs peak pressure at the key versus 11,500 lbs peak pressure at the bolt. So, relatively speaking, there is really very little pressure being applied on just the gas key. Hardly enough to get things exciting, it seems.

Once the screw is opened, the amount of pressure at the key goes down dramatically. I doubt that there is more than a few hundred pounds peak pressure on the key, now.
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RCA Adjustable Gas Key works as advertised - by NugginFutz - 03-07-2015, 05:47 AM

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