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Vitriks Dec 24, 2017 @ 2:03am
Active vent blow up pipes
I understand that pipes blow up at certain pressure. But it even possible for a vent to make that pressure? You get this by sucking air from big bases and streaming that flow to devices that can't handle that pressure. And also you can't put a pressure regulator because you need one pipe in between. Is active vents suppose to be so powerful or it's just need to be fixed?
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Showing 1-15 of 15 comments
Dinoabunai Dec 24, 2017 @ 2:07am 
What is your problem exactly?
corsica-man Dec 24, 2017 @ 2:42am 
I have the same problem, my active vent oump inward and my pipe explode
Dinoabunai Dec 24, 2017 @ 2:44am 
What is your problem exactly? Wat are you want to do?
If you will make just Active Vent -> 1 pipe section it will bown up, but if you want to make something, there is 100 ways of doing that. And I can't describe them all.
Last edited by Dinoabunai; Dec 24, 2017 @ 2:46am
Vitriks Dec 24, 2017 @ 2:50am 
Originally posted by Dinoabunai:
What is your problem exactly? Wat are you want to do?
If you will make just Active Vent -> 1 pipe section it will bown up, but if you want to make something, there is 100 ways of doing that. And I can't describe them all.
Problem is that active vent can accumulate a pressure that can blow up steel pipe. It's not about ways to overcome this, it's just very unrealistic. Basically it means that vent works like compressor without a limit.

If a vent supposed to work like that, I have no questions.
Last edited by Vitriks; Dec 24, 2017 @ 2:56am
corsica-man Dec 24, 2017 @ 3:06am 
I Want to lock pressure in the pipe after the pump , of i put regulator before thé pump , it’s not work and after it’s blowing my pipe
Dinoabunai Dec 24, 2017 @ 3:25am 
@Vintriks
OK, I got it.

@corsica-man
Youi can use passive vent and pressure regulater for that.
HeplMeh Dec 24, 2017 @ 4:16am 
I'm new to the game and not sure if it's possible ingame with the current mechanics or items atm but normaly, in a legit vacuum system, the way is should work is...

The first thing to remember is gas will move the path of the least amount of resistance. High pressure areas will always move to the low pressure areas as to balance itself out. Technicly the gas is being pushed as it tries to escape into the side of least resistance as opposed to the low side pulling from the high side. Think of a compressed tank with simply a valve. You open the valve and the gas rushes out because the outside Atmoshpere is a lower pressure than inside the compressed tank, which is compressed to a much higher pressure. Nothing is ever 'sucking' as It's not technicly suction but for all intensive purposes you can call it that if you wish.

As to make a proper system, you would have your passive vent or whatever that has a valve directly behind it. Then you have your piping, preferably with some high vac pressure gauges attached as to monitor the pressure within the pipe at any given time. On the termination side of your pipe line, you would have another valve that is connected right before the input side of your high vac pump. When drawing down a vacuum, both valves need be open so the vac pump can draw down the entire pipe from the vent side. If you have equal pressure on both sides (The vent side and the Exhaust side of the pump) then the pump will have to run as to scoop gas to move it to the exhaust side. This action creates negative pressure at the pump causing all the gas to move towards the pump from the line/vent side. If you already have a lower pressure on the exhaust side, as soon as you open the valves, the higher pressure vent side will rush to the lower side pump exhaust by itself because by opening the valves you've given the high side a direct path to the low side.

Once all your gas has been moved or the pressures you target on the high or low side have been achieved you would simply close off the valves and stop the vac pump. This will in essence leave the piping in a low pressure state and it would be isolated from both the low and high pressure sides respectivly via the two closed valves.

The problem I think is how some of you are understanding of how this all works, remember a passive vent is just a vent. A active vent seems to be a vent with the pump inside and that is what is moving the gas volume. The active vents directional flow can be switched from in to out, being as such I think you are thinking of your line backwards.

As a suggestion I would recomend trying two seperate lines. One setup to move gas in one direction and the other setup to move gas in the opposite direction. Depending on which way you wanted to move things, you would activate the one line you want.

ALWAYS set the active vent to pull gas out of said vent not push it into the pipes....

(Key to remember, you want to pull from the pipes so they are always a low pressure. You do not want to push into pipes as unless there is a direct escape out on the other end. If you have no escape, you pressurize the line until it explodes. You can easily over pressurize a pipe, it's extremely hard to crush a pipe with low pressure as that would require a insanely strong vaccum pump to bring the internal pipe pressure down low enought to the point the outside atmoshpheric pressure crushes the pipe.)

Line #1 (Passive vent) - (Piping) - (Active Vent) set to move gas ---->
Line #2 (Active Vent) - (Piping) - (Passive Vent) set to move gas <----

Hope this helps, I know it's a bioot confusing. If you have any questions or need me to try and explain it a bit better, feel free to ask. I will go ingame myself to try this all out myself in a bit here as I really have no idea the limitations of the items in the game itself and how realistic they actually are.
Last edited by HeplMeh; Dec 24, 2017 @ 4:28am
Vitriks Dec 24, 2017 @ 4:36am 
@HeplMeh=VX9=
I have no Idea why you wrote this. I said that there are ways to handle it. Active vent use simple fan, it cant accumulate pressure that can break metal.

Basically active vent suck air and grow pressure from 100 kPa to 60 mPa.
Last edited by Vitriks; Dec 24, 2017 @ 4:42am
HeplMeh Dec 24, 2017 @ 4:46am 
Originally posted by Vitriks:
@HeplMeh=VX9=
I have no Idea why you wrote this. I said that there are ways to handle it. Active vent use simple fan, it cant accumulate pressure that can break metal.

Basically active vent suck air and grow pressure from 100 kPa to 60 mPa.


I wrote this because most people don't understand what's actually happening overall. If your pipes are exploding you are pushing gas into a closed space with no escape out the other side.

May I ask what exactly you are trying to achieve in your paticular setup you have in mind?

If you question is more or less is this realistic, more or less the answer is no. A vent by itself can't pump gas, there needs to be an actual pump. The pressure you can achieve is tied directly into the size and power of the pump. Other crucial factors include, the diameter of the pipes themselves and their wall thickness. It comes down to, how much psi the pipe is rated for vs. how much psi the pump can create in the pipes given volume.

"A simple fan" creates very little pressure and has a weak motor, you wouldn't be able to realisticly do any of this stuff that you can in game with a simple fan. That fan would also need to be housed in a very tight space with an exremely small input and output which in essence is what a pump is. A typical fan is not housed in anything and sees atmooshpere at all times both on the input and output side.

A real pump uses enveloping blades that squeeze a larger volume into a smaller volume as they rotate interenaly. The input side leading inside the pump never sees the output side becasue fo the design of the enveloping blades. This is what creates neagative perssure inside the pump. A fan, does not do this, it's input and output side see each other at all times.
Last edited by HeplMeh; Dec 24, 2017 @ 5:13am
takesix Dec 24, 2017 @ 5:29am 
Mine blew up yesterday while trying to fill some oxygen. What is the purpose of the data slot on the vent?
Dinoabunai Dec 24, 2017 @ 5:33am 
No purpose.
Vitriks Dec 24, 2017 @ 6:47am 
@HeplMeh=VX9=
I'm just saying that active vent act like a pressure pump that has no limits. So aether let us set the limit like in volume pump(or lower it to 50 mPa) or make vent that act like a normal vent with fan.
Last edited by Vitriks; Dec 24, 2017 @ 6:57am
Dinoabunai Dec 24, 2017 @ 2:32pm 
I sent the problem to devs, but IDK. Probably they will ignore it.
Deerhunter102 Dec 24, 2017 @ 2:35pm 
I put a passive vent and back pressure on any of my pipes that want to expolode to relieve pressure to keep them from popping.
HeplMeh Dec 25, 2017 @ 8:02am 
Originally posted by Vitriks:
@HeplMeh=VX9=
I'm just saying that active vent act like a pressure pump that has no limits. So aether let us set the limit like in volume pump(or lower it to 50 mPa) or make vent that act like a normal vent with fan.

I agree buddy, the active vent can be usefull for other things such as cooling or removing heat from an area but in no way should it create any kind of meanigfull pressure, let alone infinate pressure, completely unrealistic.
Last edited by HeplMeh; Dec 25, 2017 @ 8:03am
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Date Posted: Dec 24, 2017 @ 2:03am
Posts: 15