Recent content by Vidaman

Good information. Thank you! -Mike

Hi All, I posted this in the Pressure Vessel group then realized this might be the better forum. I'm working on a project that involves the use of a 45g CO2 cartridge like you would use for a paintball gun or inflatable life preserver. We are going to sell the system which uses the cylinder...

Hi All, I'm working on a project that involves the use of a 45g CO2 cartridge like you would use for a paintball gun or inflatable life preserver. We are going to sell the system which uses the cylinder as a source of pressurized gas. My question is what EU Directive applies to such a...

jraef, Thanks for the quick reply. You've actually hit the nail on the head. I can't seem to get the voice of the customer with regard to which ESD direction they are most concerned. I could metalize the enclosure (the plastic is a PC/ABS blend that accepts plating) and make mods to provide...

Hello All, Pardon the intrusion from an ME here, but my company is currently working on a specialized solenoid valve controller that will packaged in a plastic case with aluminum front and rear panels. The front panel will be covered by a polyester membrane keypad. The product is powered by...

This reminds me of my fluids prof in college that stated the Civil Engineering Continuity Equation as... Mass Out = Mass In - Mass Stuck in Pipe Regards, Vidaman

Joerd, Works like a charm. Thanks. -Mike

I have a chart where I would like to control the range of values to be plotted by changing the range value in a cell. That is, one time I may want to plot all 100 points of a series, next I might want only to plot 50 of them. Right now I manually adjust the series range by going into the...

SparWeb, The rivet age hardening thing is something I heard in the builder forums I participate in, yet no one has ever provided hard evidence (which is why I came here). My guess is that it's a concept mistakenly applied from the days of icebox rivets. The rivets are AD's. The first thing I...

Hello All, I'm building a kit plane that is taking longer than anticipated to complete. I have some AN470AD an AN426AD rivets that are over 4 years old. I have heard, but have been unsuccessful in confirming, that aluminum alloy 2117-T4 will age harden. My question is, if true, what is a...

Mogens, Good information. Thanks. -Mike

I am working on a valve for a pharmaceutical process application and I'm trying to find a design standard for a aseptic fitting seal. The ASME BPE describes a European Hygienic Fitting that looks ideal (Fig SD-2(a)). However, they do not reference a standard. It is basically an o-ring face...

A quick and hopefully easy question: Is a Declaration of Conformity required for a pressure vessel classified as SEP under the PED? Thanks, Mike

Thanks to everyone for the information. I certainly helps in geeting up to speed on the subject. Thanks to all for your input. -Mike

Are there any industry specifications/certifications for valves used in the food and pharmaceutical industries? We are looking at redesigning a couple of our valves for this industry and I've just started to review the industry's requirements. The FDA seems to provide no other guidelines other...