Theoben Rapid Forum
Theoben General Chat Area => RAW, Impact, and All Rapid Derivatives => Topic started by: Zack on February 03, 2021, 07:11:09 PM
Well, I'm still waiting to receive my new rig. Since I'm new to RAW, I'm still confused how the metal probe makes a complete seal with the barrel, given that they are BOTH metal surfaces. It must be a tried and true method since it's been in use for so long, but I can't help but wonder if you would gain a better seal if an O-Ring was machined into the probe similar to the Daystate Regal/Revere. (I'm not a fan of the O-Rings machined into the breech as they are a bugger to replace.) Has anyone modified their probe to use with an O-ring and noticed a better seal/higher velocities? Just curious...
No O-ring needed..
The Outer probe is lapped to mate with the breech of the barrel
(https://photos.imageevent.com/scl_electronics/gun/air/websize/probe-lap2.jpg)
(https://photos.imageevent.com/scl_electronics/gun/air/websize/probe-lap3.jpg)
(https://photos.imageevent.com/scl_electronics/gun/air/websize/probe-seal2.jpg)
(https://photos.imageevent.com/scl_electronics/gun/air/websize/probe-seal1.jpg)
Just like lapping a valve seat in the head of your car!
This will create a perfect seal, no O-ring required
Stuart
Ahhh, that explains how they seal together - thanks for the explanation! Also, there's no O-Ring to wear out so that's another bonus.
Yes, Yes, Yes.......
That is one of the reasons why they one of the best Airguns
Also one of the easeist to service....
Stuart