Comments for FlowGeeks

Comment on Alfa Laval Digital Load Cells by health treatments

health treatments — Wed, 18 Apr 2012 06:37:38 +0000

I like this weblog very much, Its a real nice spot to read and find information about health treatments. Thanks…

Comment on Tank Cleaning Technology by randy cotter

randy cotter — Tue, 15 Nov 2011 12:23:18 +0000

I have been watching this stuff for several years, and it works. Keep up the good work

Comment on Cracked: The Secrets of Stress Corrosion Cracking by Need help choosing stainless that is vinegar & salt water resistant. - Practical Machinist - Largest Manufacturing Technology Forum on the Web

Wed, 26 Oct 2011 14:13:43 +0000

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Comment on Out With the Old and… You Know the Rest by ALM

ALM — Fri, 01 Jul 2011 03:25:20 +0000

I’m old school all the way, who needs technology?

Comment on Does Our Current Flow in the Right Direction? by John Rennie

John Rennie — Thu, 09 Jun 2011 19:32:57 +0000

Well… The topics aren’t bad, but a lot of it seems like fluff lately. It’s gotten harder to navigate, too.

Just my .02…

John

Comment on Which Are Better: Mixproof Valves or Transfer Panels? by Todd S.

Todd S. — Fri, 20 May 2011 20:14:03 +0000

I will stay with the Transfer panel for most situations; it mostly comes down to cost. As an example, I purchased a large transfer panel last year with 6 inlets and 12 outlets, a mix proof valve array to do the same would have taken 90 valves (72 process and 18 CIP). The transfer panel cost $15k to design build and ship, just the individual mix proof valves would have cost $378K. Add the cost of the valves, fabrication, the 270 pneumatic control valves to operate, 180 position switches, and the PLC control system with 450 I/O points, the cost just keeps adding up. The mix proof valves take maintenance and are prone to malfunctions. Another problem with mix proof valve arrays are they harbor many dead legs that have potential product quality issues, waste product and take several steps to clean and sanitize. I see mix proof valves costing too much to buy, install, operate and maintain. Mix proof valve arrays do make sense if you are making a new plant that is totally automated or a plant that is processing hazardous material. They do look cool though. Mix proof valves do have their place in industry; I have purchased several, and in small numbers can be cost effective.

Comment on Stress Corrosion Cracking by pdj8583

pdj8583 — Mon, 28 Mar 2011 15:37:43 +0000

Very informative article. You mention preventative measures, such as introducing compressive stresses and modifying composition. I think it would be beneficial to also introduce readers to various ways of applying these measures. Maybe list out apps such as shot peening or ultrasonic impact treatment, which introduces compressive stresses while improving surface condition and alleviating tensile stresses. There’s a good video at http://www.appliedultrasonics.com that details how UIT alleviates stress corrosion cracking.

Comment on Which Are Better: Mixproof Valves or Transfer Panels? by Keith R.

Keith R. — Tue, 25 Jan 2011 16:54:47 +0000

I agree that transfer panels are easy to understand and have served well for many years. I’ve been looking at this for a while. My concern would be that someone would take a u-bend off at the wrong time and hurt themselves or lose a lot of product. Or someone would get the wrong u-bend in the wrong place and create a product safety issue. A smaller processor just can’t afford to have a major loss like the “big guys” can.
I like the idea of getting all the human interaction out of the process and using the mixproof valves. I’m sure there is a maintenance learning curve, but what doesn’t these days. And what’s the cost of a recall, or hurting an employee, or losing a tank full of product to the production floor?

Comment on Which Are Better: Mixproof Valves or Transfer Panels? by Dennis

Dennis — Tue, 25 Jan 2011 00:09:48 +0000

Thanks for the question Liz.

My take is that while Mixproofs might be OK for the big guys, the majority of processors out there don’t need all the bells and whistles. The upfront costs and training involved with Mixproofs is difficult for a average processor to justify.
So, I say “Keep It Simple Stu……”.

Comment on Which Are Better: Mixproof Valves or Transfer Panels? by Tweets that mention Which Are Better: Mixproof Valves or Transfer Panels? | FlowGeeks -- Topsy.com

Mon, 24 Jan 2011 20:20:03 +0000

[...] This post was mentioned on Twitter by CSI and CSI, FlowGeeks. FlowGeeks said: Mixproof Valves or Transfer Panels – Which Is Better? http://goo.gl/fb/4538P [...]