Regulator setpoint?
The manual says not to shoot below 120 bar (1740 psi) Is this the regulator set point? Or is the set point lower? Wondering how much pressure is behind each pellet. Also, it say damage can occur if shot below 120. How does this damage anything?
Thanks
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Which Matador .25 ? Standard or long ?
450mm – vulcan barrel
477mm – matador std barrel
maybe answer 😉
Why the reg is set as high as 150 bars? Matador can do JSB Kings with 130 bars.
the regulator piston is relatively loose in the regulator body, it would not work if it was a perfect fit.
there is a possible side ways play.
if you inspect a regulator seat on a Vulcan with many shots through it, it will have a ring shaped impression on the Teflon seal/seat.
if you shoot it empty there is a chance that it seats elsewhere, the performance will suffer.
it is up to you what you do to your gun, if you mess up the valve don’t come here crying heeee :rofl:
The regulator will not come under any harm shooting the gun at 25 BAR let alone 100 BAR. It will not change the settings on the regulator or other untoward synergy of space and time. The regulator is really not a complicated machine. Spin has it right, it’s mainly to protect the valve valve spring and hammer assembly. Having the HST set to overcome 150 BAR in the plenum can cause too much valve movement when the plenum is at 120 BAR (off reg). Honestly it probably can handle 1/2 that much pressure before any damage can occur (60 bar) but AGN built in a 50% safety meausre.
don’t shoot it under the regulator set pressure because what can happen is the regulator will not seat on the same spot what it had before and have some erratic behaviour later.
regarding shooting it empty by dry firing it. that will damage the knock open valve. so it is abuse not warranty covered.
In my opinion, manufacturers of a fine product will place any measure of caution for one reason: they hate to see their product go back to them for service or warranty work, even if it is a simple mechanical remedy. It is a waste of time and resources, and both of these cost money to them. So, as much as possible they make recommendations to the owner to avoid this. That said, a properly designed and assembled regulator should not exhibit any damaging effect if it has gone below the recommended pressure level for consistency. Going below the reg’s cut-off pressure (when the unregulated air in the air tube has dropped below the regulator’s set working pressure) should only result in the air discharge no longer being regulated because the regulator’s piston can no longer seat itself (seal external air off) to prevent any more air from entering the regulated air chamber. However, filling the air tube back to its max fill pressure should enable the regulator to resume normal functionality.
Thank youuuuu Khamis! I´m going to inform my friend. Thanks again 😉
Hellow Jan,
It is item no. 14 in the Vulcan diagram figure B. The dimeniton is 3.5 x 1.5 mm (2 nos.) it fits on the Regulater piston.
Hi guys, one my friend has Vulcan cal.22 and he has probably regulator creeping. Can you advice me which o-rings are located inside the regulator? I know here is the list http://www.talonairgun.com/forum/viewtopic.php?f=54&t=34223 but I´m not familiar with Vulcan o-rings so I do not know which is situated inside the regulator. Thx 😉
:hoot:
Dear Wingless, Feckless, Feathered, Cat-Felon!
First off, you are too a moderator, because your name appears as a “moderator” under “Bullpups” “Vulcan”… :suprisedn:
Second off, it does too lower sound levels when you drill vent holes in your shroud…perhaps air is different on Kiwi Island. I shouldn’t be surprised, as your toilets drain backwards.
Third off, you are not working on JSB improvements in your workshop…you are back there doing horrible things to innocent cats! I read that in the paper. It was also on CNN! You are going to murder two million cats…don’t deny it, it was on the internet!
How else do you explain this picture of your “workshop”???
“The horror….the horror…..” Marlon Brando Apocolypse Now
Kindly ‘Ol Uncle Hoot:
So, how does one know the actual pressure the reg is set at since these are recommendations?
The widely accepted method is to carefully count your shots while shooting the gun down below 100 psi until it explodes in your face.
The person who brags best about his shrapnel wounds wins.
I imagine that the boring method would be to shoot over a chrony until the velocity clearly drops out of regulated range and then measure the start fill pressure.
Thanks for jumping in. The values in the manual are different for different calibers. Don’t remember .177 but it was 120 for .22 and 150 for .25.
So, how does one know the actual pressure the reg is set at since these are recommendations?
Moderator for this forum in New Zealand…I PM’d him, but no response yet.
Perhaps Ernest can shed some light on this???
Hoot:
First of all Im no “moderator” for this forum, if I was half you lot would already be long gone :butkick: ..
Didnt you know I work for AOA? (or some other hated USA retailer — enter name here—-)
Secondly Earnest is a very busy man, He is stuck in his workshop drilling endless holes in shrouds changing the discharge sound to a frequency pitch his aging ears thinks is quieter.. one day he may invest in a DB meter and see that in fact he has made them louder but just changed the tone a touch… 😆 No matter, the accuracy improves with the more holes you drill in your shrouds..
Although I dont own a Vulcan and cant comment on its internals first hand Id be very surprised if you could do any damage to its internals by firing it below the 120bar minimum recommendation.
there are a few annoyances that could happen like a total cylinder dump dislodging o’rings or a damaged o’ring from over heating of a quick refill from empty but mechanically I dont see a problem.
The hammer spring v/s valve return spring relation should be of such a design that the hammer couldnt mash the valve past its point of no return or do any damage there at all. I have done this to a .44cal PCP valve with a very heavy hammer spring and a light weight valve return spring however, when I dry fired it on an empty cyl and it ripped the valve spring retaining collar clean off leaving the valve stuck open. I dont think this is possible on most small PCP rifles though.
That figure of 120bar is actually a floating figure as you turn you reg and hammer spring up and down and depending on cal anyway, Im sure its more just a badly translated factory warning to not shoot your gun off the reg due to velocity drop and possible stuck pellets etc
Happy? Now you have me out of my workshop where I am doing some very important prototype engineering with JSB that will revolutionise long range PCP use as we know it..
If I fail I will hold you directly responsible for our failure to move technology forward and we will all just have to go back to bitching about each other and claiming my gun is better than yours!
Kind regards, as always, The flightless Kiwi
Moderator for this forum in New Zealand…I PM’d him, but no response yet.
Perhaps Ernest can shed some light on this???
Hoot:
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Matador .25 STD.
27 mm of difference in the length between these two barrels is barely noticeable. There must be a different reason.