USA manufactured PCP Regulator ( testing and discussion ) * RESULTS POSTED

[Motorhead]

Having spotted this post in the classified .... http://www.gatewaytoairguns.org/GTA/index.php?topic=65221.msg621401#msg621401
Contacted seller and ordered one to test and play with.

* With all the R&D I do with regulated Bench Rest and Field Target rifles the design looked to have some Very well thought out design attributes that grabbed my attention 
As with most competitive shooters always looking for the proverbial Better Mouse Trap 



100% billet BRASS construction ( Steel bevel washers ) has body and spool expanding / contacting with temperature changes together. * In theory should be a very dimensionally stable unit.
 
High pressure seat adjustment is on fine threads with a lock collar to hold adjusted pressure setting.  * Like this a lot !



Internally find that More Bevel washer you use, more accurate and speedy recovery is to set point.  Looking at it appears stack is 10 washers worth. * Liked this too 

HP seat is a time proven design having air enter straight down the adjuster screw then resting on the HP Spool ends DELRIN seat.
Once seats open air flow around HP end of spool ( See the turned down diameter above o-ring ) passing into side holes intersecting spools center hole to LP side.

Regs body holding LP spool end machined as a blind hole requiring no internal C-clip.  Top HP half of Reg screws onto the bottom making unit a very robust solid assembly.  ( being basically ALL Brass it's heavy, but darn nice to see tough brass where most use aluminum 



This regulator is of a Universal nature in that it is VENTED and a hole needs to be drilled in main air tube to vent it.
* The Current HUUB sold by AGE has an integral plenum and vents threw existing gauge hole.
So we're dealing with the more typical and type design used within the industry by most others.  No biggy really 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Have no vested interest here, just always willing to share the work of others felt worthy of getting there products viewed where they otherwise would get lost in the masses of posts and internet clutter.

Will be testing very soon doing some serious shake down evaluation and sharing within this thread ... Stay tuned 

Scott ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We Have testing results

* Regulator placed within one of my Field Target tuned .177 cal marauders. 
Set point adjusted for @ 1600# output pressure.
Rifle fitted with a modified factory valve, light 19gram hammer.
Pellet AA 10.3 heavy set up to shoot @ 900 FPS.

 1-10 = AMV 900 / SD = 4.21 / ES = 14 & 1.56%
11-20 = AMV 896 / SD = 1.38 / ES = 7 & .78 %
21-30 = AMV 902 / SD = 3.03 / ES = 11 & 1.22%
31-40 = AMV 903 / SD = 3.27 / ES = 11 & 1.22%
41-50 = AMV 904 / SD = 3.78 / ES = 12 & 1.33%
51-60 = AMV 908 / SD = 2.6 / ES = 9 & .99%
61-70 = AMV 908 / SD = 2.81 / ES = 8 & .88%
71-80 = AMV 908 / SD = 2.5 / ES = 8 & .88%

Fill was at 3000# and rifle dropped off regulation on shot @83 so stopped at 80 

** So for 80 shots we get:
Average Muzzle Velocity of 903.6 fps
Standard Deviation of 3.06
Extreme spread average of  10
Spread percentile 1.1%




Data plugged into Lloyd's Efficiency Calculator numbers crunch like this 

AVE FPE / CU IN per shot = 1.37
AVE BAR-CC/FPE per shot = 11.9
AVE FPE = 18.5 ft lbs
AVE PSI used per shot = 17


Needless to say it is a KEEPER !!!


*** NOTE:
This Data is with a NEW REGULATOR thats only cycles have been this shot string ... it is NOT BROKEN IN YET and would expect it to settle down further after a few 1000 cycles.


Thanks for following along ...
Regards,
Scott

 

[eeler1]

Scott, what guns does it fit?  Look forward to seeing your results.


EDIT:  ooops, went back and read it again - MROD

[QVTom]

Nice write up Scott.  These things look very simple to manufacture, why are there so few to choose from?

[strever]

Scott
i'm glad you are testing one of these
i also have one sitting here and have been debating on installing it
have been in communication with him about machining some other items also
looking forward to your results

[Gertrude]

subscribed and will follow with great interest.

[bubba zanetti]

Scott:

Since I am very new to the PCP game and now have a Marauder, do you mind explaining what a regulator does in simple terms?

This is interesting but I don't know what it means yet

Thanks,

BZ

[scrane]

http://www.airguns.net/general_regulators.php

[Yarp]

subscribed and will follow with great interest.

Yarp.

[bubba zanetti]

http://www.airguns.net/general_regulators.php
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Thanks!

BZ

[Motorhead]

RESULTS POSTED bottom of original post

Real happy ... think we got a winner 

[Frank in Fairfield]

I think you might be ordering some (at least one) more.
 

[Bill G]

Hey Scott been a while since I have chated with you. That looks like a real find, those are some great numbers. How much volume do you think it takes up in your reservoir?  Better asked, what reservior volume did you use to calculate those awesome efficiency numbers?

[Motorhead]

Hey Scott been a while since I have chated with you. That looks like a real find, those are some great numbers. How much volume do you think it takes up in your reservoir?  Better asked, what reservior volume did you use to calculate those awesome efficiency numbers?

Bill,
Used volume of 190 cc.
The regulator is @ twice a long as the one pulled out ( A Huub Universal Gen 1 )
Body length of one removed was .800" long and This one put in @ 1.500" long.
We lost @ 3/4" more air space due to this regulators length.
Both used up against a hogged out factory gauge manifold BTW.

** Taking a factory air tube size of 215cc, subtracted 1.5" at 1.060" diameter, the CC volume this regulators main body displaces is 21.69cc
Add a tad more for the nose/adjuster area rounded it off to 25cc leaving me with @ 190cc of HP air storage 

[Gertrude]

Scott,

Just curious, Do you plan on trying this in your .22 Mrod also ?
 I would love to see a comparison between a non-regged vs. this reg, in a .22 Mrod.

On edit,
I'd like to see a comparison that would also include the reg that you are currently using in your .22

 

[gene_sc]

Great stuff Scott. Very impressive numbers. I have one of the original 100 M-Rods in .177 that would love that mod... I could shoot all day...

Thanks for sharing with us.

Gene

[Motorhead]

Scott,

Just curious, Do you plan on trying this in your .22 Mrod also ?
 I would love to see a comparison between a non-regged vs. this reg, in a .22 Mrod.

On edit,
I'd like to see a comparison that would also include the reg that you are currently using in your .22

 

Ron,
The .22 has my original Audrius Regulator which is installed in nearly identical parameters and would be easy enough in doing.
That rifle ( the .22 ) gets 40 shots on reg and @11 off for a consistent 50 while tossing JSB 18'1s at 865 fps & 30 ft lbs.

Thought about doing the .22 for the testing, but JSB .22's are more costly to just be shooting across a chrony and being I have been able to get such good efficiency in .177 cal, the longer shot stings IMO are more telling of a regulators consistency than shorter strings 

So .177 it was   

[Rdsail]

maybe someone can enlight me....how come they don't make high flow regulators. Something like 1/4in or larger air massage so plenum does not become an issue as much. This would be for high power applications.

[Motorhead]

maybe someone can enlight me....how come they don't make high flow regulators. Something like 1/4in or larger air massage so plenum does not become an issue as much. This would be for high power applications.

A "Per Say" Hi Flow regulator would be following along the lines of what Ninja among many in the paintball world build.
It is not so much a Hi Flow as it is FAST RECOVERY so valve can fire under very short recovery time.

The PCP's valve opens and closes so quickly that a regulator simply has no ability to actually meter air for the actual shot cycle.
The "On Deck" supply of regulated pressure air for the shot cycle at present must be available within the plenum.

Hope this anwsers what your asking ? 

[Rdsail]

It kind of answers my question but not really. lol.

Still would like to find a reg that can mange high power 50-70 fpe

[Gertrude]

Scott,

Just curious, Do you plan on trying this in your .22 Mrod also ?
 I would love to see a comparison between a non-regged vs. this reg, in a .22 Mrod.

On edit,
I'd like to see a comparison that would also include the reg that you are currently using in your .22

 

Ron,
The .22 has my original Audrius Regulator which is installed in nearly identical parameters and would be easy enough in doing.
That rifle ( the .22 ) gets 40 shots on reg and @11 off for a consistent 50 while tossing JSB 18'1s at 865 fps & 30 ft lbs.

Thought about doing the .22 for the testing, but JSB .22's are more costly to just be shooting across a chrony and being I have been able to get such good efficiency in .177 cal, the longer shot stings IMO are more telling of a regulators consistency than shorter strings 

So .177 it was 

Thanks Scott,
Yeah, I understand why you chose the .177 and the longer shot strings, 
 being able to tune for 80 shots certainly does afford some bragging rights  , as well as better tests the regs consistency.

great review, and great info.