Tuesday, July 26, 2016

Foxboro Vortex Flow Meters

Foxboro vortex flow meterThe patented family of Foxboro vortex flowmeters has the high accuracy and rangeability of positive displacement and turbine flowmeters without the mechanical complexity and high cost. Maximum rangeability up to 100:1 is possible as compared to 3:1 for a nonlinear differential pressure producer (orifice plate).

Because these Flowmeters have no moving parts, they are very durable and reliable. This simplicity of design ensures low initial cost, low operating and maintenance costs, and therefore contributing to an overall low cost of ownership.



For more information, contact:

Mead O'Brien
(800) 892-2769

Friday, July 22, 2016

Traps for Sour Gas Service

Armstrong Series 300
Armstrong Series 300
What is “sour gas”? 

In the oil and gas industry, “sour gas” refers to natural gas that is contaminated with hydrogen sulfide (H2S or “sulfide”). “Sour crude,” similarly, is crude oil that contains hydrogen sulfide. These are naturally occurring conditions, but definitely not desirable. Aside from the environmental pollution problems with “high-sulfur” fuels, there are some serious corrosion problems that can affect many materials. Liquid drainers (drain traps) and strainers are the most common Armstrong products ordered for sour gas service. A few other products are sometimes specified, notably inverted bucket air traps. An inquiry may be accompanied by an extensive specification of H2S concentrations; there may be a line indicating “Sour Gas Service;” or may only be the note “NACE.” This is a reference to Standard MR0175-93 published by the National Association of Corrosion Engineers (NACE).

What is the problem? 

H2S under pressure permeates into the crystalline structure of the metal and strains the structure of the crystal. This reduces its ability to deform in a ductile manner. The net effect is to make the material brittle. In the presence of external stresses due to applied pressure or loads, or internal stresses due to cold working or welding, parts may fail by cracking without any warning. This process is called Sulfide Stress Cracking (SSC). SSC is affected by many parameters, including: · Composition, strength, heat treatment, and microstructure of the material; · Hydrogen ion concentration (pH) of the environment; · Hydrogen sulfide concentration and total pressure; · Total tensile stress; · Time and temperature. Choice of products and their limitations. Inverted bucket traps (primarily for air trap service) should be selected from the Series 300 traps. The bucket and mechanism (except valve and seat) will be annealed to eliminate the locked-in stresses from the stamping operations. The valve and seat will be made from Type 316 stainless, without additional heat treatment. Cast iron bucket weights are permitted, since they are not stressed in tension. Special bolting is required only if the sour environment is also outside the trap.

Download the Sour Gas Trap Selection Guide Here

Wednesday, July 20, 2016

Mead O'Brien VP Elevated to ISA Fellow

ISA Fellows 2016
ISA Fellows 2016
The International Society of Automation (www.isa.org) is a nonprofit professional association that sets the standard for those who apply engineering and technology to improve the management, safety, and cybersecurity of modern automation and control systems used across industry and critical infrastructure. It currently boasts 40,000 members worldwide.

Steve Huffman
Steve Huffman
Elevation to the distinguished grade of ISA Fellow is granted to Senior Members in recognition of their exceptional engineering scientific contributions to the field of automation.

Steve Huffman, VP of Sales and Marketing at Mead O'Brien will be one of the honorees at the 54th Annual ISA Honors & Awards Gala to be held on 24 September 2016 in Newport Beach, California.

Steve is being recognized for leading the effort to create the US Department of Labor’s Automation Competency Model for automation professionals.

Congratulations to Steve for this achievement and for his many years of service to the instrumentation and automation community.

Tuesday, July 19, 2016

Your Career in Process Automation May Just Save The World

process automation careers

Did the title get your attention?

Here's a thesis for you to consider: People entering the workforce who are interested in meaningful careers should strongly consider industrial control and automation.




Wouldn't you like a career where you could:
  • Help solve world energy
  • Help provide clean water
  • Help solve world hunger
  • Help clean and sustain the environment
  • Help meet chemical & mineral needs
  • Help provide material goods
It's a bold statement, but there's truth that engineering careers in manufacturing automation will contribute to the solutions of some of the world's most significant challenges.

The following presentation by Steve Huffman, Vice President of Mead O'Brien and Chairman of Government Relations for the Automation Federation, provides an interesting argument about the importance of people in the changing world of process automation. Enjoy.