Iris valves - GIFs

I still don't fully understand the use cases for iris valves. In what applications do you need that precise control over fluid flow? Can the valves even close 100%? Are they typically used in conjunction with gate valves, so that the gate valve acts as an isolating valve, and then the iris valve controls the flow precisely?

However, they play prominently in science fiction movies, and their operation is aesthetically pleasing.

Here's a nice GIF of an iris valve opening.

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And here's an iris valve opening on a trash can. Not exactly of critical use to society, but still cool.

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Here's one from the internet:

IRIS VALVE. The patented Vortex Iris Valve is designed specifically to handle dry bulk solids in gravity discharge of free-flowing material from bins, bulk bags, chutes, and hoppers. ... A form fitted fabric sleeve provides a dust tight seal and product barrier, which prevents material leakage into the atmosphere.

Key Industries Served: Agriculture, Chemicals, Foods, Minerals, Petrochemicals, Plastics, Textiles

Quantum Iris Valve | Vortex - Solids & Bulk Handling Components

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Dumpling maker. Perhaps not a valve per se, but excellent iris motion, and for a legitimately useful application.

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In effect it is a an iris valve to shape the buns...Yum, a bit too perfect but wets the appetite. Ceramic ones are used in coal fired power plants to control the fuel/air mixture in the pipes (precise metering) as well as control the roping that occurs on straight run 7 diameters out from an elbow. Worked on a PLC control system for one, years ago.

PJ

Titled as "Aperture" wrench, but this is a perfect fit for this thread's iris theme. From an industrial design project on Behance, by Jordan Steranka. I must assume my default position: gimmicky. However, I would love to be wrong. More: https://www.behance.net/gallery/2716...perture-Wrench

https://diqn32j8nouaz.cloudfront.net...re_wrench1.jpg

https://diqn32j8nouaz.cloudfront.net...re_wrench2.jpg

https://diqn32j8nouaz.cloudfront.net...re_wrench3.jpg

If you want to poke around on Behance for tool design concepts, try this link: Behance search for "tool" in the Industrial Design category

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Originally Posted by Jon

Titled as "Aperture" wrench, but this is a perfect fit for this thread's iris theme. From an industrial design project on Behance, by Jordan Steranka. I must assume my default position: gimmicky. However, I would love to be wrong. More: https://www.behance.net/gallery/2716...perture-Wrench

https://diqn32j8nouaz.cloudfront.net...re_wrench1.jpg

https://diqn32j8nouaz.cloudfront.net...re_wrench2.jpg

https://diqn32j8nouaz.cloudfront.net...re_wrench3.jpg

If you want to poke around on Behance for tool design concepts, try this link: Behance search for "tool" in the Industrial Design category

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While the concept is valid,the inventor will find that real world application may be less so. However if made from suitably hard and durable materials it could have its purpose in certain areas however the use of cylindrical pins as the means of closing the aperture segments are the first weak points of the design.
the use of elongated crescent shaped pins would afford a much stronger and more precise method of controlling the relative positions of the segments.
The bulkiness could be greatly reduced much like as the ratcheting box end wrenches evolved from their first copies to the present models

Quote:

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If you want to poke around on Behance for tool design concepts, try this link: Behance search for "tool" in the Industrial Design category

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Interesting design Jon. Have seen a wrench similar that used roller bearings in a similar manor, just can't remember where. Like Frank says, not sure how well it will hold up or what limitations it will have for use but a good concept, ripe for refinement. More that I like the site. Hadn't been there before nor seen it in any of my Adobe forum/emails. Found it a treasure trove of creativity and Adobe Based. Thanks for the link...I'll spend some time there when I can.

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Wouldn't this wrench tend to tighten with one face (holding tension) and loosen with the other face towards the fastener?

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Originally Posted by Miloslav

Wouldn't this wrench tend to tighten with one face (holding tension) and loosen with the other face towards the fastener?

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Yes that is correct, it would be like a ratcheting box wrench...by flipping to the opposite face it loosens or tightens.

PJ

Saw this mysterious item and remembered we had a nice iris thread:

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Quote:

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Originally Posted by Jon

Saw this mysterious item and remembered we had a nice iris thread:

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Stargate SG1 close the iris

Beat me to it, LOL! It's the right size, too!

Just want I was going to say.

It’s for the Stargate of course!

Crap! Put me down for the SG1 reference also. :lol:

My reason for suggesting Stargate was looking at the control ring around the iris I could see the chevrons in my imagination
As it turns out this iris has 18 segments while the stargate iris has as near as I can tell 20 segments that was just too uncannily close to being the same plus the size looks too close to being near the same size as the gate iris.
It would be interesting to see the iris in the gif fully closed if the segment points overlapped I would probably loose what little mind i have left.

LOL, "Strargate!" was my instant reaction, as well!!

I just wonder if the cameraman on the lift inside that Stargate knew he was going for a ride?

I found the vid with sound.

https://youtu.be/jvEL3KahFsk

Well that leaves out the stargate it seems this iris is nothing more than a throttling flow restrictor.
darn I was hoping for an off world adventure

Stargate? Makes for plausible deniability

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Looks like some kind of cheesy operation to me...[lol]

Iris circle drawing tool.

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That's cool.

Where’s the link to buy one??

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Originally Posted by Flintlock42003

Where’s the link to buy one??

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I was thinking the same thing

Found this via Google https://www.kickstarter.com/projects...res-creativity

Mercedes-Benz stadium roof.

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Glass furnace iris door.

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A glass furnace is correctly known as a “Glory Hole”.
Yes, I love words.