Hi guys I replaced the fx amp reg cause it was creeping to the huma gen 3 extra power reg. I believe it can go up to 190 bar? Correct me if I'm wrong. But my question is, how low can I go? Would I be able to set to 100 bar when I want to shoot low fps? What is the lowest that I can go on the extra high reg? It has 9 thick washers.
huma extra high pressure reg. Lowest setting?
- Thread starter 2fast2furious
- Start date
I lean something new every day here.
The EDgun Supermagnum I had was supposed to be set at 112 bar.
If anyone would have said here's a 16 page pdf I would have understood that gauge. It kept saying 120bar.
I later find out 120 is default & the garbage 🗑 can should have been pressed.
The point on how low can you go?
Well if reg was really at 112bar with a 23.75" LW .25. It was sending 33.95's at 900fps for 50 shots.
Clicked preload up 14 clicks and got a 5-6lb trigger ( that didn't fire during safety disengagement ) and sent 31.9 RBT slugs at 940fps.
So reg pressure has so much to do with the barrel length, preload & hammer weight. More directly the weight of your pellets or slugs. The back pressure or resistance until slug/pellet leaves barrel all plays a part.
So what length/type barrel, type, weight of projectiles are you wishing to send?
I can tell you that say a regulated rifle with a 600mm (23.62")) barrel may send 36's@980 for 76.79ft/lbs on a 2800psi fill, 190bar
It may send 28's@1070 for 71.2 ft/lbs.
With pellets/slugs I can be almost dead on adding or subtracting 10fps per grain. With inches of barrel on a PCP it's pretty weird. An extra 3-4" can gain 80-100 fps. There's a balance point but IDK where it is.
Send that same OD 36 grain slug from a 32" barrel on same platform w/only 2100psi (150-160bar) & I guarantee it's gonna hit 1200+fps.
I can't answer your question perfectly but let's say 100-125bar is as low as your reg goes. There's no reason you couldn't lessen your preload, use a lighter spring or hammer to get a faster valve duration and slow things down.
If you absolutely want slower as in Match Grade Wadcutters at 560-575fps you'd need to run a short barrel & a step down in-line reg.
I guess you know how it all works
The EDgun Supermagnum I had was supposed to be set at 112 bar.
If anyone would have said here's a 16 page pdf I would have understood that gauge. It kept saying 120bar.
I later find out 120 is default & the garbage 🗑 can should have been pressed.
The point on how low can you go?
Well if reg was really at 112bar with a 23.75" LW .25. It was sending 33.95's at 900fps for 50 shots.
Clicked preload up 14 clicks and got a 5-6lb trigger ( that didn't fire during safety disengagement ) and sent 31.9 RBT slugs at 940fps.
So reg pressure has so much to do with the barrel length, preload & hammer weight. More directly the weight of your pellets or slugs. The back pressure or resistance until slug/pellet leaves barrel all plays a part.
So what length/type barrel, type, weight of projectiles are you wishing to send?
I can tell you that say a regulated rifle with a 600mm (23.62")) barrel may send 36's@980 for 76.79ft/lbs on a 2800psi fill, 190bar
It may send 28's@1070 for 71.2 ft/lbs.
With pellets/slugs I can be almost dead on adding or subtracting 10fps per grain. With inches of barrel on a PCP it's pretty weird. An extra 3-4" can gain 80-100 fps. There's a balance point but IDK where it is.
Send that same OD 36 grain slug from a 32" barrel on same platform w/only 2100psi (150-160bar) & I guarantee it's gonna hit 1200+fps.
I can't answer your question perfectly but let's say 100-125bar is as low as your reg goes. There's no reason you couldn't lessen your preload, use a lighter spring or hammer to get a faster valve duration and slow things down.
If you absolutely want slower as in Match Grade Wadcutters at 560-575fps you'd need to run a short barrel & a step down in-line reg.
I guess you know how it all works
Upvote 0
Hey,
Not to hijack his thread but to help him & all.
If you have a tester & it read 110bar but creeped back up.
Is that the reg settling in? Is it a manometer off a slight bit?
Combo of both?
I would think that if it would read 110bar it should & basically could stay at 110bar. Possible that low side/high side big variations are much harder on all regulators.
So say you reset it to only 110bar for output/low side. I would surmise I should forget about 3K-4500psi fills if a CF bottle. I would only fill to say 2750-2800psi and it may hold.
Ever since I got a big compressor I don't stress anything anymore with full fills. Not only because I baby stuff but even my high power slug set ups just work best when I'm tethered & running at 2500-2750 at most.
Upvote 0
Just restack the washers when you wanna use low reg pressure your gonna need a couple more of those Bellville washers the huma regs are all the same extra high, high, and low just the stacking of the washers differs
When i had my reg set to extra high I couldn't adjust below 135 ....and maxed out @ 200 bar
When i had my reg set to extra high I couldn't adjust below 135 ....and maxed out @ 200 bar
Upvote 0