×
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!

*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

Which API 6A Gate valves should I choose?

Which API 6A Gate valves should I choose?

Which API 6A Gate valves should I choose?

(OP)
Hello,

I am trying to figure out the different pros and cons when it comes to the normal API 6A gate valves used in kill & choke, standpipe and well test system.
There are many different suppliers (WOM, T3, Anson, Cameron etc) and some seem to use the same principle.
However, I have come across some valves that I don't see why it would be a better solution than the other out there. What first comes to mind is T3 or Camerons FC-type valve. The one with the body bushing and seat...
Only thing I can think of is the pricing, but I do not know the price.
I see t3 HPT and WOM use the same principle with a split seat or 2 part seat, with some minor differences. I believe Anson has the best solution with a 1 part seat. (no issues with leakage between the 2 parts.
So is there anyone that could explain briefly (if you know the different pros and cons) for choosing the correct valve for the correct application.
Also, I forgot to mention the gate valves with skirted seats or retainer plates. Are their sole purpose to be used in a cement transferring application/manifold?
Why would I choose a T3 over an Anson valve? I honestly do not see why anyone would choose anything but Anson? And to be fair, I do like most gate valves. But anson is so simple, cheap and easy to maintain.

Looking forward for any reply.

RE: Which API 6A Gate valves should I choose?

Hello

T3 is now NOV. They sell the FC type valve which has a body bushing and seat. Cameron does not sell this type of valve, only FLS style single-seat design.
HPT was sold off - was first designed by EEC which was purchased by T3 and ended up with NOV which changed the two-piece seat design to a single-seat design to meat Saudi Aramco specs.
WOM sells both FC, FLS, and Magnum type valve. The Magnum style valve has two-piece seat and seals upstream/downstream.
The Anson type valve is sold by NOV and is an FC / FLS design. The parts come from the Cameron FC FLS design. They put a piece of brass in the packing gland to prevent galling. The rest is Cameron's design.

I would think the FC style valve is the most commonly used in the choke and kill manifolds unless going to Saudi or some Haliburton locations. I designed the EEC / T3 line of gate valves from 2" thru 7-15k FC type and also worked on the HPT valve design. A few smaller companies can supply the same valve, with better support and lower pricing than the larger companies.



Petrotrim Services, LLC
www.petrotrim.com

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

eBook - The Future of Product Development is Here
Looking to make the design and manufacturing of your products more agile? For engineering and manufacturing organizations, the need for digital transformation of product development processes just became more urgent than ever so we wanted to share an eBook that will help you build a practical roadmap for your journey. 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