Homemade Air Tank for Air gun | PCP Air tank 3500psi

How to make a 3500psi PCP Air tank
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[@smartbrocanopy2421]

Great demos like this are seldom seen nowadays but it is a must for hobbyist to know this old method. You can build a decent airgun following the procedure - many thanks "face off". Back in the 80's, we did it in a much harder way, using pin locks slightly off-center as we lack the taps for the thread. We have to find exact fits for the solid round bars, pipes, etc. and use files/sandpaper to form the parts. We use hand drills and bits as well. For major joints, we use brass brazing and minor joining using lead for the rest. We sure lack equipment back in the day. Thanks to this video, ready-made hardware parts made life easier. But I warn the DIY people in making this exact plan when handling high air pressure, especially above 2000 psi. Be sure you know and understand the allowable maximum pressure (pressure rating) of your metal fittings, parts and joints. Some well known brands of pcp air rifles exploded below its warranty. Be sure you know what you are doing before you are confident to reach 3500 psi.

[@faceoff2]

Nice comment "Smartbro Canopy"

[@smartbrocanopy2421]

Thanks for the compliments. Videos like this are valuable, yet people should always be alert on other facts to be on the safe side.

[@sparkexplosion3857]

@John Nelson he screwed each end through the tub into the brass . It will hold it.

[@sparkexplosion3857]

@John Nelson kzbin.info/www/bejne/iXiwhXiFmKiskNk please watch

[@sparkexplosion3857]

@John Nelson kzbin.info/www/bejne/Z4aahYV6e8-hfK8 and this one's cool

[@ludviktisnovsky2881]

S=(π•D to power of 2)/4 ~ 3•9/4 = 6.75 cm2 3500 psi~200bar Bar= kg/cm2 200bar=200kg/cm2 200•6.75=1350 kg That's over a ton of force that is pushing those endcaps off. If it will fly off it will kill someone. I don't think that those screws can whistand 350kg of shear force. It's really dangerous.

[@Delluxe825]

In the video, clearly the guy did not pump 200 bar, but the 80 bar balloon will definitely hold

[@son-of-a-gun]

He guy doesn't know what he's doing Very dangerous!

[@sigmalove1187]

@@Delluxe825 Thin stanless pipe and min screw can not supprt 80*7=560KG .80 Bar is very dangerrous , 20Ba maybe safe

[@bigboifour8162]

yeah...... they should be welded on....

[@bigboifour8162]

and the end caps should be heated after they are inserted into the tank before welding to ensure very good tank strength.. but goo design and concept just please mention in your discription the highest psi that this would be safe to use at. LOVE IT!!

[@Calligraphybooster]

Warning for viewers: it’s a bomb 3 times over. 1) 1mm wall thickness is far to little. 2) the end caps receive a huge load which is bound to shear off the pins securing them. 3) the threading was done wrong. Look up the required drill diameters, use them, and also use a drill press or lathe for good alignment, better roundness and cilindricity.

[@frjel80]

buat lah video mu macam mana yang betul, jangan pandai bercakap saja.

[@Electricity_Never_Dies]

i think if we glue them and weld it will fix all those problems

[@Calligraphybooster]

@@Electricity_Never_Dies glue and weld? Glue doesn’t survive the heat of welding.

[@arielsgood4972]

Thanks a lot for this information.

[@AnnihilatorAirguns]

I don't think a 1mm wall is safe at 3500 psi. You might want to verify you're getting at least a 3 to 1 safety factor compared to burst pressure.

[@BC-wj8fx]

It is absolutely not safe. I fear that "face off" has not posted on his channel for a year because he had a face-off accident. This design is risky even for 350 psi.

[@dinosaursdie8901]

Very unsafe. I've build one myself with 3mm pipe and still feeling nerveous everytime filling air on it, on 2500psi.

[@zjw6738]

The thickness of 1MM is indeed very dangerous for high pressure, so this type of air chamber is only suitable for low pressure.

[@markjonior]

​@@dinosaursdie8901Berapa berat, dimensi dan dimensi tangki Anda

[@bigboifour8162]

AWSOME!!! this is exactly what i needed to make a custom airtank in school!!

[@bigbirderbob3710]

Oh my gosh are you serious? Youd be creating a bomb. Maybe you CAN take that into a school(?).

[@916619jg]

This guy makes a good tapped thread with an adjustable wrench when I break them all while using the proper handle and drill oil... Good show! 😊

[@jedgurley]

Yeah, I don't see this holding a lot of pressure, best use hydrolic tubing and threading the ends. Always overshoot the pressure rating by using tubing that is rated much much higher.

[@1227air500]

I am late to the game on this video and don't want to add to the pile-on about the safety issues. The demo and methods of what you can do without an expensive bunch of equipment is always to be commended, and I admire that. Making do with what you have is a lost art, so kudos to face off for his creativity. But with that said, and not knowing what specific stainless steel alloy and temper he is using, I am skeptical of the safety at 3,500 psi. All stainless steels are not equivalent and some of them are surprisingly weak compared to the more common carbon steels and to most alloy steels. If we assume that this is type 316 stainless, I calculate that the tube, and the end-bolting method are good for about 1,500 psi, with a safety margin of about 2.6 to 1 for the yield strength of the tube (for bursting), but only a safety factor of about 1.7 to 1 for the ends of the tube distorting in the areas of the 4 drilled holes. I have done a lot of air tube tests to failure on my channel and there are many different failure modes, not just the tube blowing up. If you are lucky, an o-ring will leak or pop first, and some airgun designs are actually made with excessive o-ring clearances such that an o-ring will leak before a catastrophic failure occurs, if the tube is inadvertently filled above its safe maximum. For this design to be safe at 3,500 psi, with a minimum safety factor of 2.3 to 1, I would suggest a 2mm wall thickness of the 316 stainless tube of 32mm O.D., and also using 6 screws instead of 4. That is based on calculations for 5 different failure modes, and backed up by destructive testing that I have performed to validate several of the generic failure modes. Please be safe, and if you are in doubt, don't do it until you are sure about the safety.

[@mindmanifestations2036]

THIS…. o doubt anyone has attempted this bc we’d have a lot of dead hobbyists… this is incredibly dangerous… I’m not gonna go so far as say irresponsible bc there maybe a language and cultural difference that is preventing clear communication

[@amtechprinters3339]

Nice concept and end result.... but if this pipe is OD=32mm T=1mm (0.039") Its bursting pressure is only 1872psi (working pressure 1248psi) So.. if you really but into thiskind pipe 3500psi, its miracle if its not blowing up very deathly! Im working in this field, so Im NOT telling you bllsht :D

[@miemiey1115]

how you calculate. teach me

[@rastapeace4331]

if your pipe not seamless 32mm OD ang 1mm T how mouch psi?

[@akbartaufan5435]

My thoughts exactly, plus the ends are only held by tiny screws as opposed to being threaded. 3500psi is way too much. Best case scenario is, the ends would shoot out onto your face. Worst case scenario, the pipe blows up along the seams (if it is not seamless), straight onto your face, hands and body.

[@amirazahari9366]

MrAntza teach me plez..

[@Gippetos]

@@amirazahari9366 Look up hoop stress and Barlows formula. Most folks building pcp's use a MINIMUM safety factor of 3x the maximum working pressure. I use and encourage you to use yield strength for all calculations rather than tensile strength.

[@LLtj213]

Really dangerous!

[@bigboifour8162]

according to @MrAntza 1 year ago Nice concept and end result.... but if this pipe is OD=32mm T=1mm (0.039") Its bursting pressure is only 1872psi (working pressure 1248psi) So.. if you really but into thiskind pipe 3500psi, its miracle if its not blowing up very deathly!

[@acorgiwithacrown467]

I think the end caps will actually fail before the pipe does, from my own calculations the pipe will begin to fail around 1900psi but will actually rupture at closer to 3900psi, by that point the pipe has swelled up. Long before that happens the end caps will have shot out like bullets and turned this guys head into mush. I can't find where he specifies what type and size of bolts he used but they sure as hell don't look thick enough to withstand anything close to 3500psi, if i had to guess i'd say they will eventually fail from fatigue at some point in which case it could be 1000psi or 2500psi, its a gamble when it will actually fail but judging by the fact that he hasn't uploaded in a year I'm not exactly hopeful.

[@davidschmidt6013]

The basic "inspiration" and visualization of the parts is great. And for engineering, the "concept" or you might say the "idea" is half the battle...thinking of WHAT you need to build But the actual construction methods here leave some areas for improvement, it's little things that us folks who literally grew up using tools would see: notice that holes were drilled without a drill press...it is humanly impossible, if drilling into a tube or a rod-type piece or material, to get a perfectly plumb hole drilling by hand. You can get CLOSE, but not as plumb as a drill-press. Next: when tapping threads, backing the tap out, using a wrench causes the tap to 'wobble' on it's travel, and so ruins the perfectly circular hole into which the threads were cut...the hole becomes elongated, and the threads therefore become a little shorter (peak to trough) on one side than the other. ...if you're making a tank which is supposed to hold 3500lbs of air, could be a BIG problem. There were many little things like this, but not worth going into detail, since this gentleman won't change his style. But anyone thinking to copy this item, try to employ better machining and fabricating techniques, for safety.

[@bobboboff5326]

Согласен. Для подобных вещей есть более мелкие резьбы, но в данном случае даже пропаривание не поможет 👆

[@thomassalto9758]

Face off !! Definitely you gonna get your face off after this!3500 psi seriously or you added extra zero mistakenly😐🙏😅👍other videos in this channel extremely good😍👍

[@mancavecreations6535]

I like your enthusiasm and creativity with only hand tools but wouldn't encourage people to copy this and fill to 3500psi because the hospitals are busy dealing with the virus, I don't think they have the time to put you back together at the moment.

[@猩猩点灯-b4s]

哈哈哈

[@aryokreatif9448]

Sangat keren dan juga menginspirasi,sukses selalu kawan👍👍👍

[@fishfishy7185]

this is tutorial how to making a pressure bomb....

[@ANDROID204]

I add all your videos in a playlist called "Videos that will get removed by KZbin" :) Great content man

[@秦无边]

气室设计的不错。就两堵头应该设计个贯通的安全插销。高压的时候，你堵头上那两个小螺丝我看着太恐怖了。针阀那再加个简单的设计，实现简单的恒压。

[@zjw6738]

打高压肯定会炸,1MM厚度,3颗细螺钉承受不了成吨的剪切力,至于它会那个地方先炸,我认为都有可能.

[@JockoFlocko]

Nice to see craftsmanship like this done with the proper tools. Excellent video and great teaching tool.

[@brian.louis107]

Not sure end caps held in by 4 screws is safe, as well as a tube with 1mm thick wall.

[@warhero219]

I agree ithink better is weld also

[@zakir2460]

its dangerous..can blow up for 3000psi

[@Colonies_Dev]

oh boi, pls be spring steel

[@olekbeluga314]

@@warhero219 %##

[@mrphoenix7612]

You saved my time

[@faceoff2]

Thank you

[@ericclini4672]

Gorgeous ! Thank you.

[@rawaabadi7178]

Good job brother ... Nice to know you I'm from indonesia ... Thx

[@theboogeyman9344]

Mas di 0:57 bahan apa yang di pake?

[@enjannurdin6799]

Mas valve pemicunya apa namanya ya belinya dimana?

[@Claudioose]

I'm a little bit worried about your safety

[@gaurabpattnaik1383]

Tnx for return form a long pride

[@dallinostler4794]

Majority of Brass fittings are only rated for 125 working psi.... I’m sure this exploded and that’s why he doesn’t show his face.

[@Disinterested1]

channel named after OP blew his ...

[@skylersmith9465]

I recommend just buying an aluminum paintball tank and using that. Pressure tested for much higher than what they are guaranteed for, and you can add a regulator much easier.

[@gingerssuck]

Not everyone can just buy stuff

[@skylersmith9465]

@@gingerssuck Never said everyone could. I said it was a recommendation not necessary, and I gave reasons for the recommendation.

[@BayonJose]

Video 🔥🔥 Create a series explaining every aspect of gun making and number it accordingly so that we can easily go through each step easily.

[@faceoff2]

Da bayone..

[@BayonJose]

@@faceoff2 ente comment kooduthal nannayi poyo sir??

[@whiteshadow6925]

Aaye nee paranjathu correct anu

[@Bacanalable]

Nice...Both caps receive the same pressure and force...why one wit four and the other with two screws???, thanks.

[@greenyonline]

Dangerous stuff if higher pressure.

[@BroMike-vk3sj]

Pneumatic IED, i saw one with flying shrapnel...

[@TrionoBara]

Very nice..👍👍👍

[@faceoff2]

Thank you

[@jafarhussainmohammed6126]

I appreciate your vision and mission...it was awesome ..thanks

[@ratishpatil4582]

Good video,but with that 1mm wall thickness tube and m4 screws not operable above 800psi....burst pressure around 1500psi

[@hellarylugetlaryline]

Salam bos... Apa aman klau tabung guna screw tanpa drat... 🙏

[@fredrikgustafsson1417]

Compressed gas is no joke! Do the math before playing with it. The load on each endcap (30mm) @ 3500 psi (241 bar) are 1700 kg or 3747 pounds ! How long will those screws take thed load ??? ... just saying ... The thicknes of the tube I´m not smart enough to calculate

[@faceoff2]

It's dangerous

[@adriandumitrascu4292]

1 M4 screw can hold 482kg assuming is made of poor steel 400N/mm2

[@Rakemaan]

@@adriandumitrascu4292 Check your calculations. M4 thread does not have a 4mm load-bearing cross section due to the fact of being threaded. You calculate the cross section of the root diameter. And 400 N/mm2 sounds like the UTS not the YS. What a fastener will "hold" is not the UTS, that is already into plastic failure or "necking" (starting at they YS) which reduces the cross-section remaining. And are we talking tensile load or shear? Accounting for the stress concentrations of the threads? Shear strength can be approximated by 0.6 x tensile strength. So low grade steel M4's will likely fail at 120 kg each. Even the highest grade screws would fail before 3000 psi, so the safe working rating should be nowhere near 3000 psi.

[@adriandumitrascu4292]

@@Rakemaan 400N/mm is for class 4.6 and 4.8. and yes they fail at 1.3kN (aprox 130kgforce) of force according to EN1993-1-8 safety factor is 1.25 now just in case someone try this dangerous experiment it should take in account that you need a hydraulic pipe(not a junkyard or hardware store nonsenses) with a nominal pressure above what you are going to put in (for ex for this experiment you need a 35x4mm hydraulic pipe) and endcaps need to be secured at least with 4x M6 grade 8.8 screw at least 11mm away from edge. better pick a pipe according to catalog and calculate screws according to EN1993-1-8 code (better then nothing :D )

[@sonofagun3193]

Caution!! Your 1 mm pipe wall thickness is not sufficient!! Assuming a yield strength of 235 N/mm for SS 316 and a safety factor of 1,5 for seamless pipe you need 2 mm wallthickness!! Your 1 mm thick airtank can blow Up in your face. The end cap could blow Out too.

[@faceoff2]

Thanks for the information.

[@ebattleon]

32 mm OD x 2 mm wall thickness is only rated for 2300 psi. The thinnest wall thickness at the 32 mm OD would be safe to use is 4 mm which would have working pressure of approx 3900 psi www.swagelok.com/downloads/webcatalogs/EN/MS-01-107.PDF

[@BC-wj8fx]

It's not just the wall thickness to consider it's the retainers. They will shear at much lower than the claimed pressure.

[@ShayanQuanta]

Got your hpa hand pump! Great

[@faceoff2]

Finally😊

[@detoderos2027]

Dudo que con esos 16 bombasos lo hayas llenado a 3500 psi además como vas a mover tal cantidad de presion 1.No tiene regulador 2.los sellos que utilizas se pegan a cierta precion 3.el martillo que utilizas no es tan potente

[@compressedairsaving9601]

inspiring stuff, Thank You for Posting. May i know more of quick coupler construction, is it home made or bought out

[@sandyfraser100]

talking about exploding.I have purchased a brand new fire powder cylinder.1 kilo.I know they take a lot of preasure.but not taking any chances.firstly.will give it a resin coating inside.thenI will lay up about 5 layers of fiberglass over the tank.and finsh it with a coat of gel.and polish it up realy smooth.So with the tank and about 3/8 thick solid fiberglass.I think it should do.will test it out a few times in my mates tyre cage for lorrys.Heres hoping.this will be my.first project.thanks to guys on here.even trying out something different by replaceing the spring systm with an ellecric air valve that can be timed for how long or short an interval of air release.at the age of 68.hope I havent left it to late.lol.👍🤬

[@dutchsailor6620]

Rename this video into: How to make a pipe bomb with compressed air.

[@suprafastmafc]

Safety margin? Working pressure? I wouldn't gome within a football field of this pipe bomb!

[@reynaldialvaro9423]

Are you serious 3500psi cilinder that,,,?try use manometer ,,i'm not believe it because you use only 1 oring seal for 1 tube,,that's not strong may be for 3500psi,, But, ,you very creative ,,because,,i think it long time ago,,but ,i not have lathe machine,,I don't thinking waterpipe shocket can be modified,,,thank you very much,,,!you already opened my idea..succes for you always.

[@mbahismu4156]

WARNING...! This is UNSAFE for 1mm stainless steel with OD 32mm to handle 3500 psi. It's working pressure is only 2000 psi with safety factor 1.3. It's thickness supposed to be 2 mm at least. And it must be seamless pipe.

[@DuskDD]

If you want to know how pipe bombs are made, you found it.

[@sonofagun3193]

@ Mustafa Alper. Exactly! The guy made an extremely dangerous pipe bombe and keeps it to his face while shooting. It could explode any moment since 1 mm wallthickness is insufficient and/or end cap can blow out.

[@xinwater2000]

1mm thickness can hold 3500psi? i really dun know about this, not mean challenge or anything, just want to know the answer or the formula how much thickness can hold how much pressure.

[@blacklisthunter8861]

I'll go for 2.5mm thickness for safety.

[@sonofagun3193]

@@blacklisthunter8861 Agree! I calculated 2 mm

[@sonofagun3193]

@@airgunningyup Wrong! Yield strength is 235 N /mm2 for SS316 seamless. Min wall thickness is 2mm 1,5 safety factor included. Pressure Test 300 bar possible Oper pressure 200 bar is okay. Less than 2 mm is bloody dangerous. If you want to hold a pipe Bombe close to your face...Go ahead!

[@airgunningyup]

@@sonofagun3193 you basically agreed with me ,.i said he needs thicker tube.

[@xinwater2000]

@@sonofagun3193 mind to share your formula? thanks in advance...

[@hanshunterklitik135]

Good job

[@danvandertorre6349]

you did a very good job using hand tools

[@kinoman3676]

You are awesome

[@science0074]

Oh Nice👍🏻👍🏻

[@faceoff2]

thank you

[@haxto1]

Im not a machinist but I have never seen anyone use a thread tap in a drill. I assume it would be an easy way to just rip the potential threads to shreds and that is why a tool turned by hand is used? Am I correct on this? Or is using a power drill an acceptable way also?

[@gingerssuck]

I would hesitate to tap a deep hole but if your just tapping 1/4“ piles or plate or something a drill can leave a pretty perfect thread. But it is pretty easy to Bind and break your tap and foul the hole in the process.

[@totoboy4718]

Your waiting for a disaster.to happen! Its like holding a bomb waiting to blow with shrapnels along with it.. trust me i know..

[@haroldpugong3898]

Soon he'll upload a video on how he was injured when that airtank exploded

[@jopajoholland8821]

3500 psi seems risky for that contraption

[@sonofagun3193]

It's a pipe bomb...!!

[@hennymenhd]

big fan bro

[@faceoff2]

Thanks bro

[@lthlth4365]

Ok cảm ơn kênh nhé chia sẻ

[@bighowardshsn]

great skill set u have

[@emmanueltauseseha1608]

If not done what are the ideas that can reach that 4000psi pressure

[@刘华强-c8x]

Converted to about 24MPA, can four screws bear such a big pressure? ? ? ? ? ?

[@purukol0422]

Why the air is not coming out when you pump to fill the tank (pump intake fittings) if you use quick connector only,is there one way valve in that part?

[@faceoff2]

I have used Quick Head Connection Check Valve One Way.Thats why air wouldnt come out.

[@sonumajhi2055]

Sir gun me jo lagaya hai use kiya Air bolte hai

[@sedrickbueno4154]

Ser pasuyo ano po ang lahat materiales nyan

[@morta46]

me hace gracia los videos estos, un bidon pcp con cusntos bares de presion? que le has metido 3 bares? eso no lanza ni una bola de plastico, y se le metes 200 bares revienta!

[@nihil-baxter]

great job & video, but what are these round aluminum blocks with the cutout for the o-rings? do they have a name & where can you get them?

[@Putera8indera]

I was trying to ask that question too!

[@siliconesword1798]

When will you make a tutorial on the full auto gun? Love your work and keep it up!!!!!!

[@faceoff2]

Soon ..Thank you

[@siliconesword1798]

Just wondering, what country do you live in???

[@siliconesword1798]

@@RSAnimations thanks anyways 😂😂😂

[@lonewolf.L0gan]

@@faceoff2 brother can u please tell those parts names..

[@gilbertopineda1412]

pwede ba gawing airtank ang 11/4 na stainless tube

[@ronaldcortez8101]

Sir ano tawag diyan sa bilog nilagyan Oring?

[@vladimirkai5874]

is it a joker d-32mm pipe? what is the safe pressure for the tank?

[@nasimbhola]

Make a video for barrel and fit barrel washer.

[@parellano1000]

Face off soy nuevo en tu canal. Tienes muy buenos videos.

[@matheusstahl8591]

De que material você fez o cilindro? What material did you make the cylinder ?? ¿De qué material hiciste el cilindro? 你是用什么材料做汽缸的 シリンダーはどのような素材で作ったのですか？

[@RAFDELChannel1]

Nice

[@faceoff2]

Thank you

[@keochipcp309]

Ok ok verry good

[@miguellevanvuuren2819]

Is it very safe ? Have one of them exploded or one of the end caps blown off i realy want to make one but idk if its dangerous

[@sonofagun3193]

It's extremely dangerous. It will blow your head off

[@mattye880]

Great idea how did you make the grooves for the o-rings? I'm looking forward to the rest.

[@elsiedatulayta3627]

I just wanna ask what kind of hammer pen is this? or what is the name

[@vivendodanaturezaselva1867]

what is your country my friend ??? ... would you send To Brazil ??? and when would it be the value?

[@feldyfreediving]

Mantap....

[@TechnicIsFun]

He pumped a few times, the pressure is 5 bar, max.

[@ahmetyildirimderedealtinar196]

Bir dolumla kac atis yapiliyor

[@fatherland6729]

Good 👍

[@pebrito]

16 strokes will never reach 3500 PSI. Why didn't you show the pressure gauge?

[@ebethtechbutingting2942]

How about the material you take,,, or do... What the all List can I'll take the material List.. Sir..

[@kenstone5479]

3500psi on a tube that thin and live through it???????

[@fredrikcarlen3212]

@@kamranheidary173 I'd be fine pumping it to like 1000, but NOTHING beyond that.

[@АлександрМеркулов-д9ж]

Ник хорошо перекликается с отсутствием защитного кожуха на болгарке..

[@samkarhani6845]

Your the man bro👍

[@faceoff2]

Thanks bro

[@deepan9559]

is you really fill 3000psi in that pipe or less?

[@jhoncarlolemosnero8612]

Sir where can I buy that BSP thread I can't see it on online shop

[@AutoFun17]

What if im using galvanis pipe 2mm thicknes. Can it hold 3500 psi

[@gerhansimanjuntak9394]

Tube seamleas or welded

[@rajkamal3125]

after very long time...

[@papabeartv8417]

32mm outer and 1.5mm thickness stainless it's ok or not for air tank 1000psi

[@jasonmabras8889]

Nice sir

[@killhacker5776]

Can here for the valve. Uhh. No no no don't think I'll be making this pipe bomb waiting to happen. Maybe that stainless can take more than I think. Maybe I'm wrong here but fire extinguishers are much thicker. And maybe the seal goes first.

[@hiimpeter9197]

Can you give me the name of the parts for this vid

[@Ak-oq7vt]

Nice. Price????

[@sandeepjangra3461]

You can't fill 35000 psi in a cylinder made with 1mm wall thickness & single oring seal plugs without threaded don't do stupid things i appreciate your efforts though

[@helicrashpro]

The single o-ring seal for each plug was actually fine but everything else was not fine. PCP tube plugs are often "pinned" by screws instead of threaded. Take the Benjamin Marauder for example, the valve body (rear tube plug) is pinned by 3 screws. However, the way it was done in this video would be a catastrophic failure at 3500psi and extremely dangerous.

[@sandeepjangra3461]

@@helicrashpro you are doing this concisely and know very well the outcome but think about those beginners who doesn't have knowledge of high pressure if someone tried this inspired by your video and injured himself then gues what you would be fully responsible

[@רועי-ל7ג]

how the ragulator that release the air call?

[@terabaimenua6436]

This method is just for 350psi only..😄future Than that..it will blast😇