Originally Posted by doyll
You both have valid points.
There are many good 140mm fans out there. Most of us don't need the kind of performance Delta or San Ace have. Even on radiators.
Dave is correct. Delta and San Ace specs are accurate and most consumer fan specs are overrated.
TY-140 series fans have no static pressure spec but do perform very well.
Here are links to French fan reviews where their graph is interactive. Click on fan in list for graph to show. Click again to remove it from graph. Move cursor onto graph to see fan stats.
Im not doubting the performance of Delta or San Ace, Ive dealt with these fans for years. They are great COMMERCIAL/INDUSTRIAL fans. Nor do I doubt their specs.........nor do I doubt that some consumer fan specs are exaggerated as well.
The problem is, those high powered Delta/San fans really have no purpose or a solid niche, especially at their price point. They are loud, due to getting their static performance from high rpms(And that's how you get good static pressure.....through high rpms in reality). I mean, that's the deal with them. Of course they are going to have really good cfm/static pressure when they spin 3-5k and more. What fan wouldn't in reality? It would have to have a really soft blade and a terrible design......its actually pretty hard to screw up in this regard. The problem with them is multifold:
A. They are relatively expensive.
B. They are loud
C. They don't add any real world cooling performance over a lot of the slower spinning consumer fans where its worthwhile in the grand scheme of things...........if your worried about every last temp degree, your not going to be air cooling with loud expensive fans. Your better off spending that same money for a water cooled setup.
I mean, I don't want to hear my case whine away while Im gaming, or doing benchmarks, or watching porn even.........I want the box to remain realitvely quiet overall.
What I would use them for though is in a nice custom push/pull config on a large radiator array. THis is where they can come in handy. THe high static pressure would I bet add some ability to extract heat faster from radiators. I just wouldn't be doing an array of them unless I had the room to build a sound reduction manifold........and that requires a good bit of room to do.
There are excellent 80/92/120/140/180mm consumer fans out on the market with good static pressure(whether they truly meet specs or not) at a much lower rpm rating that do a fantastic job........only rare cases where I can see using a high rpm fan like what Delta offers(small positive pressure itx case with limited room/mounts for fans with good sound deadening maybe as an example)........overall though.......they were designed with specific purpose and environments which in reality just don't fit into what this website's members do overall.Edited by ZippyPinhead - 12/16/13 at 7:42am