5000 psi in 4500psi?

[56kSomeGuy]

Is is dangerious to fill a 4500psi tank up to 5000psi and does it damage your tank? I ask this since i just got my new 88/45 filled at my local store and the guy there fill it all the way up to 5000psi at first i thought the bust disks would blow and lower the pressure but nothing happend and then i put it on my gun and it shot fine.

[petefol]

i wouldnt recomend it, 4500psi tanks are rated at 4500psi for a reason.

[EsPo]

im pretty sure its safe to fill to 5k. as the air inside the tank cools down, you loose air. so when he filled it to 5k, you prolly only got about 4.5k. the only problem you might have with filling that high would be the burst disk, and that only happens every once in a while i think. i think that 4.5k tanks are hydroed at like 6.5k or suttin.

[halB]

yes, it will damage your tank if you leave it like that for any length of time

[Kevmaster]

theres a reason the 4500psi tanks are rated to 4500psi and the 5000psi tanks are rated to 5000psi....DONT FILL A 4500PSI TANK TO 5000PSI!!

it is not made to hold that much pressure...

[Blazestorm]

The burst disks blow at 7500psi and the tank is hydroed at 150% of what it can hold, so that would be like 6750psi ... I think, because they hydro 3000psi tanks at 4500psi.

Oh well, I wouldn't recommend it, it's not like the tank is gonna rupture and explode on you causing millions of tiny bits of carbon fiber to rip your body to shreds... er... I mean... uh... Its fine :D

[sniper1rfa]

kev is right, kinda. although it will probably work fine, you are getting up in the margin of safety (a boeing 747 can handle 3 g's, doesnt mean your gunna go around doing barrel rolls in one...). The tank is designed to work at probably 5k-ish, but thats for a safety margin.


fill only to 4500 psi!

[BajaBoy]

i dunno why but they use to fill my crossfire 88 3000 to 2600... (then cools off to like 2400)

and my 3000 flatline to.. 32-3300..? (then the fitting cool off to 3000)

its ok to do that but your reg isnt gunna stand up to it all of he time

[toymyster]

I'm with Kev and Sniper on this one!! If 4500 tanks were designed to work at 5000psi, they would be called 5000psi tanks, not 4500!!

[Kevmaster]

oh, and also, the REGULATOR may also not be made to hold 5000psi...as the seals may burst...leaking out the wazoo!

[halB]

it also may stretch your tank too much, causing it to fail hydro

[FordPrefect]

Originally posted by Blazestorm
the tank is hydroed at 150% of what it can hold, so that would be like 6750psi ... I think, because they hydro 3000psi tanks at 4500psi.

For your information, tanks are hydroed for 5/3 of their rated pressure. So a 3000 psi tank is actually hydroed at 5000 psi, and 4500 tanks are hydroed at 7500 psi.

[sniper1rfa]

nah, the reg wil take it, but again, there will be little to no safety margin if you fill that high.

the reg will be designed to take more (5k prolly) because otherwise they (the manufacturer) might get SUED up the wazoo when the reg fails, due to being made for 4500.

[Kevmaster]

no, the regs are DESIGNED to hold 4500, but WILL TOLERATE over 10,000psi

the DynaFlow reg, for example burst at 27,000psi...and is only marked for 4,500psi

[cwuchu]

Is the gauge you read the 5000 psi a micro gauge? When I got my flatline filled for the first time, I noticed that the gauge read 5000 too, but the fill station gauge read 4500. I'm guessing that the micro gauge is off, not the fill station's gauge. The micro gauges aren't the most accurate of gauges out there, so if it is one of them, I'd check with the filler to make sure he's filling the tank to 4500psi.

[Kevmaster]

yeh, the wire gauges can be off by 2-300psi easy...the oil gauges that the fill stations use(or should use--DONT fill a tank by whats on the on-bottle gauge) are accurate to 25psi

[sniper1rfa]

i mean regulate that pressure. to design a 4500 reg for precisely 4500 would be absolutely stupid. we all know things get overfilled once in a while and such.

they are MARKED for 4500 so you still have that 500 psi safety. its a manufacturer tolerance that i guaruntee is there, simply because whoever designed it would be stupid to do otherwise.


HOWEVER, filling to 5k would be a bad idea. pushing limits is never good.

most guages used on paintball guns do, in fact, suck.

[Kevmaster]

sorry for the misunderstanding....

[MrMag]

the only real difference between the 5000 tanks and the 4500 tanks is a burst disk

[raehl]

Did a transient 5k fill in a 4500 tank do anything bad? No. Should you do it intentionally? No.

Higher PSIs mean more wear on your regulator, greater likelihood of a burst disk bursting, and more stretching on the tank, meaning increased liklihood of failing hydro later.

And as others mentioned, paintball pressure guages, especially high PSI ones, are not terribly accurate. It should have a % accuracy range on the face of the guage.


- Chris

[blnk162]

Originally posted by halB
yes, it will damage your tank if you leave it like that for any length of time

dont listen to this kid, he is a post whore and doesnt play paintball

[Conqueror]

Originally posted by MrMag
the only real difference between the 5000 tanks and the 4500 tanks is a burst disk

False. That's why they're rated to different pressure. They go through entirely different testing processes, and the rating under the fiber wrap is different.

Tanks won't burst until 20,000 psi or beyond, so that's not the major concern here. The problem is that filling it beyond the rated pressure makes the tank expand beyond the parameters for which it was designed. Doing this once, or twice, or ten times probably won't hurt the tank. However, if you do it repeatedly, the overexpansion will weaken the tank and the chances of failing hydro will increase drastically.

Besides, that extra 500 psi of air is only worth a couple hundred more shots. If you really need those shots, just buy a bigger tank, and stick to the rated pressure.

CQ

[Aliens-8-MyDad]

this dude at the field acccedetaly filled my tank to 3500 (its a 3k tank) and said it wouldnt hurt it, i was weary but it didnt really do anything so.....

[Kevmaster]

exactly, theres a reason only a handful of people have died via paintball: its because we play it safe and by the rules

[petefol]

Originally posted by halB
yes, it will damage your tank if you leave it like that for any length of time

Originally posted by blnk162
dont listen to this kid, he is a post whore and doesnt play paintball
dont listen to THIS kid, halB is right, 4500 psi tanks are 4500 FOR A REASON. if 4500psi tanks could regularly tolerate 5000psi then they would be 5000psi! it can damage your tank especially if you do leave your tank at 5000psi for an extended time it will definatly stretch the fibers.

[halB]

Originally posted by petefol

dont listen to THIS kid, halB is right, 4500 psi tanks are 4500 FOR A REASON. if 4500psi tanks could regularly tolerate 5000psi then they would be 5000psi! it can damage your tank especially if you do leave your tank at 5000psi for an extended time it will definatly stretch the fibers.

well, sadly he IS right, i dont play paintball. my reffing job doesnt give me time to play paintball, and with car insurance i couldnt afford the paint anyways. but still, i get a hella good view of the game in action, i feel like a football fan getting access to walk around on the field and see whatever he wants.


but still,t he point is, if your tank was supposed to be filled to 5k, it would be rated for 5k as some tanks are. my biggest concern isnt it exploding, it aint gonna do that, not for a few more thousand psi, however the big thing is the tank MIGHT stretch while under that excess pressure, and that will cause it to fail its next hydro. i know this has been said a few times already, but it needs to be beaten in. you dont use your equipment for more than it was designed.

also, do you REALLY wanna take the chance? just how much of a betting man are you?

[TRIAD]

Originally posted by blnk162


dont listen to this kid, he is a post whore and doesnt play paintball

Please
Stop
Posting
blnk162

[RamboPreacher]

lots of good points.

my note. one word: POP.

that said, I wnat to know who or what field you can even have the option of filling a tank beyond it's rated capacity, so I can report it to their insurance company, if they have insurance.

Paintball is fun,a nd it's about fun, but SAFETY is formost in mind when having fun.

filling a tank to beyond rated capacity is analagous (at least to me) chroneying your marker to 325fps because it can, and saying that the velocity will drop before I use it anyway.

[56kSomeGuy]

Originally posted by RamboPreacher
lots of good points.

my note. one word: POP.

that said, I wnat to know who or what field you can even have the option of filling a tank beyond it's rated capacity, so I can report it to their insurance company, if they have insurance.



Well i play at Orlando paintball and that's where i got it filled.

[Kevmaster]

do they do this regularly? like, can you ask them to do it and theyll say sure??!

[FESTUS33]

Not a good idea to do this on a regular basis,
but we all know it does happen.
At IAO this year the Inspection an Hydro people
had a tank on display, that they intentionally
overfilled until it blew. The final pressure when
it did blow was between 27,000-28,000lbs.
This was a 68c.i.-4500 tank.
I don't condone overfilling at any time, but this
should give you a little better feeling when it
does happen. You're going to blow rupture disc's
and O-ring's long before you're tank blow's.
Just my .02
Rick

[TippmannMan]

is pevs (my nearest and most prefered dealer :D) the only place that fills the tank to its rating then after the gas is settled tops it off? cause after reading this im really glad and feel fortunate they do regardless of what a tank could hold.

[Kevmaster]

Tippmann..thts how fields SHOULD be and GOOD fields ARE that way....they dont overfill

[FESTUS33]

You found a good place to fill,REJOICE!!
Like I said I never condone overfill's
but it does happen. I'm glad to know
that the safety margin is that high.
Rick :eek:

[SirOssis]

Originally posted by blnk162


dont listen to this kid, he is a post whore and doesnt play paintball



pipe down Chester

[PezKing]

my 3000psi Flatline was filled to 4500psi once...it seems to be fine. *sweats*