hi i found some class 18 pipe its really thick but in New Zealand we use Class A-F as a pressure rating and class 4.5-18 is the old way of describing its pressure rating but i cant find out how much PSI it can go up to.

can anyone help me

Where is the best place to place a schrader valve on your pneumatic gun

i just got the pipe of this guy it fits a GB snug,its orange UPVC its fairly thick is that alright? and do all my pipe bends and joints need to be pressure rated or just thick coz i got some spare thick ones that arnt pressure rated

nah i dnt think so but why would you they seem cheap enough,if someone has post a link on how to make one

ok cool ill make sure to check it though just incase

110psi i heard so 100psi wuld be a safe bet, wot about butterfly valves the one they used on mythbusters i think they tested it at 100psi and they do look pretty strong, do you know the avergae rating if there is a rating?

everyone seems to be using 100psi but the max i would go to be safe would be 120psi is that safe?

yeah i mite sleeve it with some extra 2" pipe left over from a combsution spudugn. this guy in new zealand lives down the road from me by coincedence and he is giving me 1.4m of 45mm pipe for FREE!!!!! im not sure what type of pipe but ill sleeve it unless it says Class D which is pressure rated to ...

yeah and i like the handles as well i feel they are more safe like its not as easy to pull as a modded sprinkler valve and i dnt have to mod nething edit:a guy in new zealand has offered me 45mm inside dia pipe for the barrel which is perfect for a GB but im not sure if its pressure rated. would the...

yeah thanks for that and butterflys are cheaper here then ball valves and i like them better for some reason

yeah it sucks pipe u wuld pay $5 for wuld cost me $60 ive gone combustion several times and pneumatic is more powerful evn with a butterfly valve so it would b tht or a ball valve but i think butterfly valves let more air through quicker sounds right to me $62USD our economy isnt doing too good latl...

yeah but its hard to find and if you do find one theyre really expensive in new zealand and can go for about $100NZD

i was wondering can you use a butterfly valve on a pneumatic spudgun like they did on mythbusters with the chicken gun it worked for them and was air tight. im a newbie here but i have built several combustion and i thought i wuld try a golf ball pneumatic with the simplicity of a butterfly valve it...