×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Tangential Outlet Reducing Tee

Tangential Outlet Reducing Tee

Tangential Outlet Reducing Tee

(OP)
Has anyone ever seen or know of a vendor that supplies tangential inlet pvc saddles or tangential outlet reducing tees? I'm looking for either a 2" tangential saddle on a 4" pipe or a tangential outlet reducing tee with a 4" run and 2" branch. Any help appreciated

RE: Tangential Outlet Reducing Tee

What's wrong exactly with a branch connection and a45 degrees elbow?

Wyes, angle branches etc create large stresses at the crotch and are quite rare.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Tangential Outlet Reducing Tee

Never seen one of those in our plants. Have you e-mailed that image to some big PVC pipe companies? Like Charlotte Pipe? I'm sure there are many.

Are you making a small cyclone/hydroclone? You can get those ready-made.

Good Luck,
Latexman

RE: Tangential Outlet Reducing Tee

(OP)
Thank you for the lead. I'm building a prototype, in my garage, and need this tangential tee for the hydrocyclone portion of the system. If it was a normal hydrocyclone I would just buy, but this one has some odd dimensions from the typical design.

I'm hoping I can find something for < $100. I recieved a FRP quote from a large FRP pipe and fitting supplier for $1200. Not ideal for prototype build.

Steel prices are crazy these days so I figured PVC would be best for prototype.

I will contact Charlotte Pipe.

JL

RE: Tangential Outlet Reducing Tee

Another thought, can someone 3D print one for you?

Good Luck,
Latexman

RE: Tangential Outlet Reducing Tee

If prototyping, I would buy a full size tee, then whittle/cast/machine a plug to locate the desired hole off-axis, and perhaps shape the end of the plug to match the main line i.d. A bit of work with some PVC rod and a lathe and mill, but not too bad. Glue the plug into the fitting using standard PVC primer and solvent cement.

RE: Tangential Outlet Reducing Tee

(OP)
I have 3D printed a smaller 2" run 1" branch version. To print a larger unit would not be possible on the printer I have. I looked into it and it would be quite expensive to print from some of the online companyues that do that sort of thing. The smaller version I printed took nearly 2 days to print.
Also 3D printing a water tight tee that can withstand 20psig is no simple task. It has to be coated with epoxy etc. I was thinking there would be someone out there who could just supply the part readymade.

JL

RE: Tangential Outlet Reducing Tee

Good to know, thanks.

Good Luck,
Latexman

RE: Tangential Outlet Reducing Tee

(OP)
This discussion has made me think of something I've never thought of....

I could just buy say a 6"x6"x6" PVC block, center drill a 4" hole then drill a 2" hole tangential to it using the orthogonal block face. Might not be the prettiest thing, but I'm a garage engineer after all. I wouldn't need any sophisticated tools either.

Thank you

JL

RE: Tangential Outlet Reducing Tee

Is it similar to connect a 4x2 eccentric reducer to a 4" Tee?
Or, to build it with FRP could be a option?

RE: Tangential Outlet Reducing Tee

(OP)
I need the tangential inlet for the cyclonic nature of flow inside the tee.

FRP can be made quite cheaply so long as I do it myself. I was looking for an easy out hoping you folks would know of a supplier...I've been searching for one for quite some time with no luck.

Charlotte pipe, nibco, no luck.

JL

RE: Tangential Outlet Reducing Tee

Have you looked into lab scale units? Spray dryer companies have some small units. Maybe you could get one second hand.



Good Luck,
Latexman

RE: Tangential Outlet Reducing Tee

(OP)
Latexman, that is a great idea. The cyclone image you show would be great actually since it says interchangeable apex and feed which is what I will need to experiment with.

Do you have a source of where that image came from?

JL

RE: Tangential Outlet Reducing Tee

(OP)
Update

I found a company in south africa, trithane, that sells individual cyclone parts - apex, inlet housing, vortex finders etc. This is my easy out.

JL

RE: Tangential Outlet Reducing Tee

Thanks for the follow-up!

Good Luck,
Latexman

RE: Tangential Outlet Reducing Tee

Make your own by machining one end of a PVC stub to same radius of the pipe on which you intend joining the machined stub.

RE: Tangential Outlet Reducing Tee

(OP)
Based on the quotes I've received for fabricated units. I will make it myself...trying my hand at casting. I modeled a sanitary clamp version and created a mold for it. Hoping I can print it, clamp it, and pour it using a rigid urethane resin. Anyone know of a good rigid urethane resin? Flex-it 80? I do not imagine the pressure will exceed 10psig inside the part.


JL

RE: Tangential Outlet Reducing Tee

Closed molding is much more challenging than people realize. Resins shrink significantly during cure. you will be come distracted from your initial problem by working on solving problems with casting. If you can fabricate a mold to make one part, surely you can fabricate the part more easily.

RE: Tangential Outlet Reducing Tee

(OP)
So, yesterday I did 3D print the part. I 3D printed a solid part using PETG filament. Hopefully this works! Thanks for the heads up on molding/casting - my ignorance on the subject in monumental.

JL

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! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close