Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 81 users online :: 4 registered, 0 hidden and 77 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Pipe and fittings Classing

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
Sponsored 
  • Author
    Message

Pipe and fittings Classing

Unread postAuthor: skinner » Wed May 16, 2007 3:07 am

Currently on my pneumatic, I have Class 18 and class 12 PVC as a chamber.
The class 18 being the endcaps and the class 12 being the chamber length.

I was wondering if the class number is same as pressure number? ie. PN12 is rated to 12 bar.

thanks in advance.

--Skinner
  • 0

User avatar
skinner
Corporal
Corporal
 
Posts: 78
Joined: Sun Dec 24, 2006 2:56 am
Location: Australia
Reputation: 0

Unread postAuthor: MrCrowley » Wed May 16, 2007 3:19 am

Sure is. PN mean 'Pressure Number' Then the number is the rating in 'BAR'.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: skinner » Wed May 16, 2007 3:20 am

i know all that stuff.

i was wondering if pipe classifications (class 18 etc.) is the same as Pressure numbers.
  • 0

User avatar
skinner
Corporal
Corporal
 
Posts: 78
Joined: Sun Dec 24, 2006 2:56 am
Location: Australia
Reputation: 0

Unread postAuthor: MrCrowley » Wed May 16, 2007 3:42 am

Pressure numbers?
You asked
"was wondering if the class number is same as pressure number? ie. PN12 is rated to 12 bar."


And the answer is yes. PN12 is rated to 12BAR
So PN18 is rated to 18BAR or 290PSI
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: skinner » Wed May 16, 2007 3:45 am

I see what you mean.
But is class 18 pvc, the same as PN18 pvc?
  • 0

User avatar
skinner
Corporal
Corporal
 
Posts: 78
Joined: Sun Dec 24, 2006 2:56 am
Location: Australia
Reputation: 0

Unread postAuthor: MrCrowley » Wed May 16, 2007 3:58 am

Yeah, There was an old system where they had Class 'A-F' I think it was. 'F' being the highest rated, then it must of changed to Class XX where 'XX' is the pressure number in BAR, and now its PNXX. So It should be the same.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: rna_duelers » Wed May 16, 2007 5:52 am

Also there is a second number next to the PN rating not to get mixed up with the actualy rating which one of my friends did. It went like this PN 9 40 and he thought it was rated to 40bar but that is the pipe diameter.

Metric PN pipe rating systems also have a 3X burst pressure rating,just a lilttle bit of information for you.
  • 0

Image
User avatar
rna_duelers
Major General
Major General
 
Posts: 1740
Joined: Mon Sep 26, 2005 7:07 am
Location: G-land Australia
Country: Australia (au)
Reputation: 1

Sponsored

Sponsor
 


Unread postAuthor: MrCrowley » Wed May 16, 2007 2:09 pm

Hmm Strange all my pipe says for diameter is DNXX where XX is the diameter.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Yahoo [Bot]

Reputation System ©'