×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Compressed Air Instalation

Compressed Air Instalation

Compressed Air Instalation

(OP)
Hi everyone, Im preparing a proyect of a Olive Oil plant.

I have doubt whether I have to use stainless steel or if I could use galvanize steel for the compressed air system pipes .

The air will be used for the packaging machine and general equipments, actuators.

thanks!

RE: Compressed Air Instalation

I use black carbon steel for general compressed air piping.

RE: Compressed Air Instalation

There are a variety of piping materials that are acceptable for use in compressed air systems.

These include: copper, brass, plastics, stainless steel, carbon steel and galvanized carbon steel.

Must the system comply with any food purity standards ? What grade of compressed air be provided ??????

Is the system subject to any sort of a "hot washdown", or Clean In Place ??

This guideline may help:

https://www.parker.com/literature/Finite%20Airtek%...

Please respect us .......and keep us in the loop and tell us of your final decision .....

MJCronin
Sr. Process Engineer

RE: Compressed Air Instalation

(OP)
Thanks everyone for answering,

The compressed air is not going to be in contact with the olive oil, or at least it shouldnt,

The air is going to be used, for actuators, and in the maintanence shop, for repairing porpuses.

Also will be used in the packaging and bottling machine..

My doubt is when to use stainless steel and when simple carbon steel, in compressed air pipes.

Also Ive seen polipropilene..

Any guide when to use one or the other ??

Thanks

RE: Compressed Air Instalation

For small bore lines less than 2inch, and if they run through areas where access for external painting is next to impossible, use SS316.

RE: Compressed Air Instalation

Also galv. scrd. piping is a good choice, no welding, and of course the Polyethylene.

RE: Compressed Air Instalation

It depends on the application. If it's for activating valves, operating tools, etc. go for carbon steel, it's much cheaper than stainless or copper.
If however it is used for conveying air for human use or on food (medical air, air for filing SCUBA tanks), then health officials will demand stainless and/or copper.
If it will be used for both, then go with the "cleaner" option. Consider here also using two separate systems.

RE: Compressed Air Instalation

You probably should ask for a recommendation from you packaging equipment supplier.

The use of carbon steel pipe is discouraged as it can corrode in the presence of moisture in the compressed air. Other piping materials such as aluminum, copper, stainless steel, plastic, are encouraged. Plastic pipe is attractive because it is inexpensive and easily modified.

http://asahi-america.com/images/x-assets/PDF/Catal....




Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources