Making BIG GAME PCP 4000 PSI Valve and Tank

In this video I'll be making a valve and a connector for a manometer and a fill nipple for a stainless PCP tank, the maximum pressure is 4000 PSI, but to ensure safety I recommend 3500 PSI. Keep following this series of videos and you'll see the finished version soon, it will be really powerful in just 4,5mm. I am expecting around 1100-1200 fps minimum using a 15.4 grain slug.
LATHE used in the video:
MINI Lathe 7x16 800W (Europe and USA link): s.click.aliexpress.com/e/_DlY...
Asia link: s.click.aliexpress.com/e/_Dlt...
Parts, tools & materials:
25mm brass rod: s.click.aliexpress.com/e/_DCF...
27x2mm 304 tube: s.click.aliexpress.com/e/_DeT...
pressure gauge: s.click.aliexpress.com/e/_Dnm...
fill nipple: s.click.aliexpress.com/e/_DDG...
20.3mm O-ring: s.click.aliexpress.com/e/_DnS...
HSS mills: www.aliexpress.com/item/10050...
drill bits: s.click.aliexpress.com/e/_Dm2...
3.9mm drill bit: s.click.aliexpress.com/e/_DlZ...
center drills: s.click.aliexpress.com/e/_DDa...
m10x1 tap: s.click.aliexpress.com/e/_DFN...
m6x1 tap: s.click.aliexpress.com/e/_DCJ...
POM rod: s.click.aliexpress.com/e/_DBm...
teflon rod: s.click.aliexpress.com/e/_DE8...
4mm steel rod: s.click.aliexpress.com/e/_De3...
grub screws: s.click.aliexpress.com/e/_Ddi...
countersunk screw: s.click.aliexpress.com/e/_DCn...
sanding tool: s.click.aliexpress.com/e/_DFW...
brass tube: s.click.aliexpress.com/e/_DeW...
silicone oil: s.click.aliexpress.com/e/_DFY...
10mm thick spring: s.click.aliexpress.com/e/_DkM...
7.5mm o ring s.click.aliexpress.com/e/_Dml...

[@Calligraphybooster]

Internal diameter 23mm. 11.5x11.5x3,14=415 mm2 (4,15cm2) 1 bar=10N/cm2 4000psi = 276 bar. So… you hold back 276x 10x 4,15 N =11454 N with a couple of little screws. Reckon with only one; they don’t bear equally and when the first snaps, then the second may well go too. Mind that the screw itself M6 has a core surface of 2.38 x 2.38 x3.14 mm =17,8mm2. If the quality is 8.8, the tensile strength is 800 N per mm2, starting to yield at 80% or 640N. For a shearing load as the screw experiences here, we take 80% of that value. We are then left at 512N/mm2 x17.8 mm2 or a load of 9113N at which the screw will probably fail. With 11454N … you are a lucky bastard. And please, dont grease O rings on a cloth full of chips.

[@pcpairgunschannel]

this is a very common way to do it. the grub screws arent the only thing holding it but the inlet valve too, which is a lot thicker

[@lukmankhakim5568]

If I may know, what is the safe pressure for the tube?

[@pcpairgunschannel]

​@@lukmankhakim5568 the tube is 304 stainless steel, 27mm OD 2mm wall thickness. Using barlow's formula the burst pressure is 10958 PSI, and therefore the safe pressure would be 3652 PSI if we use 1:3 safety factor which is commonly used for air gun tanks.

[@lukmankhakim5568]

@@pcpairgunschannel For a tube thickness of 1.5mm, what is the safe pressure?

[@pcpairgunschannel]

@@lukmankhakim5568 Depends on the od, if you used a 27mm 304 SS tube like me, then 2700 PSI. 25 OD is more common for 1.5mm wall thickness tubes, for those it's 2958 PSI

[@LowkeyAirgunner]

Nice work! Very interesting process

[@benoitdudzik8010]

i always love your video pcp airgun for life

[@jalhuntph]

great talent.good job bro🤜🤛

[@ramone79]

Nice work on the lathe

[@pcpairgunschannel]

Thanks 👍

[@CyberHunter512]

Nice video mr..👍👍👍♥️ god job !

[@pcpairgunschannel]

❤️❤️❤️

[@JamesBrown-qn5lz]

Thanks for this share

[@samnipi1889]

This actually call in my country is "pcp jowo/timbangan gaplek".....nice project👍👍

[@pcpairgunschannel]

Yes bro, this is heavily inspirated by indonesian PCP jawa

[@sniperkota]

Very Nice

[@ameenattef469]

It's good to have the new toolsأ. Congratulations... great job. The best thing in the video is visualizing the sizes and dimensions.. Great work, keep it up and we are waiting for the rest of the manufacture of the air rifle from the reciger, the gun, and all the parts of all sizes and dimensions.. Greetings from Egypt

[@pcpairgunschannel]

Thank you very much❤️

[@grzegorzdomagala9929]

i think i know that minilathe model. You can easily disengage lead screw gears from spindle - it will make a lot less racket :)

[@pcpairgunschannel]

Yes, I should do that. It is a vevor 7x16 mini lathe

[@Brett_M]

Dang I wish I had a lathe this is sweet!

[@pcpairgunschannel]

Currently I wish I had a milling machine as well 😅 The slots and all the holes were dissapointing, so I better save up for a mill too.

[@Brett_M]

my dad has a super nice bridge port mill and a ton of nice tooling I just started to learn how to use. I can make square parts and you can make round parts 😆

[@pcpairgunschannel]

​@@Brett_M so then let's do team work and make greater projects 😎

[@Pierchinggun]

If possible, the valve shaft must use a thread to enter the Tevlon. Prone to breaking often hit by a hammer.

[@pcpairgunschannel]

It's ok, this will work

[@BC-wj8fx]

Many successful airguns do not use a thread. But they do not use Teflon, they use stronger plastics such as acetal, or PEEK for more strength. If the valve stem is very thin, a larger diameter metal insert can be pressed into the plastic, it does not need to be threaded.

[@pcpairgunschannel]

@@BC-wj8fx yes, this is POM

[@airhunteroutdoor2740]

Nice work 👍👍 watching New friend from Phillipines 🤝🤝🙏👍👍

[@ztejerzkztktzfrkt8527]

This Video should called...how to build a bomb

[@TARGINO83]

Trabalho maravilhoso. Mais um inscrito no canal.

[@ameenattef469]

Yang indah dan indah dalam video tersebut adalah pembuatan film dan penyebutan ukurannya.. Bagus sekali. Terima kasih atas upaya Anda

[@pcpairgunschannel]

👍

[@ayahsadam9817]

Nice sharing💖👍

[@pcpairgunschannel]

Thanks for visiting

[@Superuser-r1y]

Please upload next part Love from India ❤👍

[@pcpairgunschannel]

coming soon bro.

[@orangkaya6683]

Iki jelas wong indo seng ngerantau neng negara 4 musim. Nice project bro

[@pcpairgunschannel]

haha terimakasih mas

[@kerahledrek]

Ane dah curiga dr awal pemilik channel ini org indo sih wkwkkwk

[@AnthonyTasin]

​PCP airguns channel UU you uuuuuuuuuuu uuuuuu7uuuuuuuuuuuuuuu😢 my pp

[@robertsimpson6324]

Excellent want more

[@pcpairgunschannel]

Coming soon

[@DailyHunter88]

Like pcp jowo 👍👍 good job my friend

[@pcpairgunschannel]

yes, its inspirated by indonesian pcp jawa

[@pawitmon2583]

thanks you br

[@miguelangelrodenasromero2158]

Eres un máquina..podrías hacer un vídeo cambiando la aguja para dar más potencia en un hatsan pcp factor Sniper L 7'62mm? gracias

[@pcpairgunschannel]

Lo siento en mi país el calibre legal es de hasta 6,35mm. Puede aumentar la potencia aumentando el tamaño de los orificios de transferencia de aire en la válvula.

[@sniperkota]

Top power

[@krisbiyantoro3989]

Top mase salam dari indonesia❤

[@anthosugiri3730]

Mantap pak de

[@sharkdevil9921]

How much possibility psi per single shoot , biggest air pressure on pcp

[@pcpairgunschannel]

Max psi per shot with the spring i use is about 10 shots from 4000 PSI to 3200 PSI, so 80 PSI per shot. 80 PSI per shot gives me about 70 joule, or 1250 fps using 15.4 grain. However I don't know what higher consumptions would give, I don't have a spring that strong to test. I think if you just try to bring the usage to like 500 PSI per shot you are gonna get at least 100 joule.

[@endrymargam7863]

Saya menantikan dan memimpikan power itu digunakan laras lubang 12mm, karena di Indonesia sangat mengerikan untuk dibuat 😅

[@pcpairgunschannel]

ya, saya dengar kaliber legal terbesar di Indonesia adalah 4,5 mm

[@earphone_13]

This mechanism is recommended for high pressures

[@pcpairgunschannel]

Yes, 4000 PSI max

[@talalahmad1045]

Great work brother. I am also trying to make one but instead of gulb screws i want to make threads. So how much long the threads need to be to hold that much pressure and is 2 mm wall thickness ok or should I get 3 mm one.

[@pcpairgunschannel]

2mm is good as long as its stainless steel Threads should be 2-3 cm long if they are 1.5mm pitch, make sure those threads dont see air by placing the o ring after them

[@talalahmad1045]

Brother can i have you contact if i have more questions. Please 🙏

[@talalahmad1045]

@@pcpairgunschannel I want to share my project with you and gain some pointers.

[@pcpairgunschannel]

@@talalahmad1045 do you have whatsapp?you can give your number

[@talalahmad1045]

Brother whenever i try to send my contact number KZbin deletes my comment so i took email from your KZbin bio send it to that mail

[@jucivaldodacsousa]

Que marca de torno é essa? Show.

[@pcpairgunschannel]

Vevor 7x16

[@yantoong567]

Part 2 next please

[@pcpairgunschannel]

in about 1 week it'll be done, still waiting for some materials to arrive.

[@hyuflhyup7368]

👍

[@airsight2753]

You finally got a lathe, how much did you pay for that and what brand?

[@pcpairgunschannel]

It is a vevor 7x16 mini lathe, it was 730$. Now lets see when I am getting a milling machine.

[@airsight2753]

@@pcpairgunschannel same price here, make a mini lathe review, i am planning to buy soon.

[@pcpairgunschannel]

@@airsight2753 let's see! 👍I'll be waiting to see what you'll make with a lathe!

[@littlehills739]

shim the cutting tool to get better center height 1:26 and 5:30

[@pcpairgunschannel]

@@littlehills739 this is a chinese mini lathe, not easy to center

[@AazifahAasifah]

👍👍👍

[@jandeeg152]

What kind of oil do you use for O-rings?

[@pcpairgunschannel]

Silicone oil, or any synthetic oil. Petrolum based oils will destroy the rubber. s.click.aliexpress.com/e/_Dl3RL1z

[@jandeeg152]

@@pcpairgunschannel Mind you, oil together with highpressure oxygen can be dangerous, you’d better use lithium grease. BUT……., your video is great!

[@pcpairgunschannel]

@@jandeeg152 yes, oils can combust under high pressure oxygen. But this is not pure oxygen I am using, its just air. Therefore combustion of the oil isn't likely

[@ahmadjuang3733]

Ada jual ga bg, 1 set

[@redgum1340]

So far, that will only blow away snow. Where is the rest of the 4000psi Big Game pcp rifle? LOL

[@pcpairgunschannel]

Sir this is part 1, I will still build the chamber, Stock, trigger hammer etc

[@Pierchinggun]

Di Indonesia This 2mm Monel material is made with 6 bolts and a pressure of 4500psi. 180cc cal32mm 8shoot 1100fps can be produced.

[@pcpairgunschannel]

@@Pierchinggun i think 4500 psi is a bit too much. The burst pressure is 10800 PSI. depending on the steel alloy, of course.

[@kiasubandari48]

the barrel installation part bro

[@pcpairgunschannel]

yes bro, patiently wait for the rest of the building videos. Next I will make a trigger and a hammer to open the valve, then later on i will continue with chamber making etc....

[@kiasubandari48]

@@pcpairgunschannel okay, waiting for the next part, keep up the enthusiasm

[@user-yz3bc9ok9l]

你好我是你粉丝，能不能做一期做 slug 子弹的视频。

[@pcpairgunschannel]

看看我是否有一天会这么做，但现在还不是时候

[@konstantboonzaaier961]

Can you please email me your plans for all parts, Thanks a mil.

[@pcpairgunschannel]

sorry, I don't have any plans. You can see how everything works and is built from the videos

[@chimmytata3227]

Di mana lokasi tepatnya mas, mau main ke tempat dan belajar.

[@pcpairgunschannel]

tidak di indonesia, maaf mas

[@bima1599]

Pcp jowoooooooo

[@WarlordEnthusiast]

Good video but I'm not sure I'd trust that with 4000 PSI

[@ameenattef469]

I hope you can translate it into Arabic because it is not available in the video settings. Thank you for your wonderful effort

[@pcpairgunschannel]

I’ll look for time to add captions.

[@lichphung6928]

Mấy ông này phải gặp VN họ làm bằng inox chạy ren hết chứ đồng nó rễ gia công nhưng làm chĩ kiểu này tháy nó không mấy an toàn

[@pcpairgunschannel]

đây là một cách phổ biến để làm điều đó

[@muhammadjanab8023]

MASHALLAH DEAR I WANT A PIECE OF TANK FROM PAKISTAN HOW I WILL GAIN IT

[@pcpairgunschannel]

Sorry bro I can’t send this overseas for legal reasons…

[@asishuman]

nice but very dirty, lots of metal particles. You should clean the parts before assembling

[@user-yz3bc9ok9l]

有点怕飞堵头

[@ichalalamri5884]

Indonesian pcp ( pcp jawa ) 👍🏿👍🏿

[@pcpairgunschannel]

yes bro, i took inspiration from it.

[@user-jc1vl1bo4r]

where can buy and howmuch

[@pcpairgunschannel]

@@user-jc1vl1bo4r not for sale, I cant ship due to courier policy Sorry

[@AgustianTyan]

Joss

[@genarboket291]

jeroane oblak bos😂

[@JETHO321]

You probably won't be able to get a hammer to open your poppet valve. It has too much surface area and pressure pushing against it.

[@pcpairgunschannel]

I will, i can open it by hitting it with a steel rod like this, and it releases a good amount of air already (it may not seem like that in the video because the sound echoed all around). The hammer I will make definitely will hit at least as hard as I did with a steel rod

[@ricardopereyra1802]

Hm

[@budibudianto2758]

Pcp original made indonesia..

[@pcpairgunschannel]

yes, pcp jawa

[@syarif_rc_channel]

21:16 I see a leak

[@pcpairgunschannel]

that was just the unpressurized air bubbling away from the threads/what was between the valve and the tube. It's not from the tank. I have stored this for maybe a week at most while pressurized at 3000 PSI, a week later still at 3000 PSI.

[@huazhong208]

Why not use titanium alloy tubes

[@pcpairgunschannel]

You can but they are expensive

[@huazhong208]

@@pcpairgunschannel It’s a pity that China can’t play

[@pcpairgunschannel]

@@huazhong208 Yeah man, airgunning is definitely a fun hobby. Where are you from in China?

[@huazhong208]

​@@pcpairgunschannelSir I am from Jiangxi Province, China😄

[@huazhong208]

This steel pipe can withstand 3500psi, which is equal to 240bar? brother

[@dinarashiloddean2264]

Bisa cod ke malaysia

[@pcpairgunschannel]

maaf bro, saya tidak dapat menghantar pakej saya atas sebab undang-undang. Saya hanya membuat video untuk orang ramai melihat pembuatannya

[@dididodok3616]

👍👍👍👍

[@khotinh3538]

mini bomb??????????

[@MetMoi-1980]

Không ổn

[@dennyavian9280]

Indonesia pcp big game

[@pcpairgunschannel]

😎

[@GercyanAdar]

BG bisa pesan Senpan ka,,,dri ntt

[@pcpairgunschannel]

maaf mas, saya tidak bisa menjualnya

[@Tim_Melati]

Mine unit pcp system, Java pcp

[@pcpairgunschannel]

yes bro, this is inspired from PCP jawa

[@adisaputra4667]

like a indonesian tradisional air gun in java

[@cddphunter7991]

Rentan jebol

[@GercyanAdar]

BG mntaa no wa nya BG,spya sy hbng,dri ntt

[@vikiwahyudarmawan6374]

like indonesian pcp

[@FeriIbah]

PCP jowo bro😂

[@vikiwahyudarmawan6374]

@@FeriIbah nahh betull😁

[@pcpairgunschannel]

Yes, i took inspiration

[@pcpairgunschannel]

@@rizaniotox634 it's true

[@ameenattef469]

Very cool.. We are waiting for the rest of the parts: the Hummer, the receiver chamber, the Trigger trigger, the Hummer zipper spring, and the construction planters with sizes and dimensions.. Well done

[@user-Berefin]

и для чего нужна данная фигня ??????

[@pcpairgunschannel]

это бак и клапан пневматического пистолета...

[@user-Berefin]

@@pcpairgunschannel А стрелять он будет походу из за угла . Так как бьет эта длинная трубка с боку

[@pcpairgunschannel]

@@user-Berefin Нет, вы увидите в следующих видео

[@vankietnguyen7749]

Sopp thuy duong lừa đảo nha các bạn