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[Sprinter]

Lots of air vents on the market, but only a few are serviceable or worth servicing at all. Taco, spirovent, spirotherm are good brands that last long and easily cleanable.
Using a hydraulic separator or air dirt separator  actually works a lot better than those brass wye strainers and some high head filters. They are very pricey, but with all the DIY here, you can easily build them yourself. Copper pipe, old air tanks of any size, old expansion tanks , or steel pipe. You just add on an air vent on top of your choice and a full port valve to flush out on bottom.  You can screen them or not Depending how it's built. It large enough ports are used the debris will fall from suspension as soon as it enters the device, if velocity is too high a stainless pipe cleaner or other non ferrous bristle, screen or brush can be used to capture micro bubbles and dirt. A threaded cap or means to clean and service and your good.

Keeping the system clean helps all the equipment last and perform well.


http://www.spirotherm.com/sites/default/files/JR-2.pdf

http://www.caleffi.com/usa/en-us/catalogue/discaldirtmagtm-air-and-dirt-separator-magnet-brass-546195a

http://www.caleffi.com/usa/en-us/catalogue/sep4tm-4-1-hydraulic-separators-549506a

http://www.caleffi.com/usa/en-us/catalogue/quicksettertm-132432a

http://www.taco-hvac.com/uploads/FileLibrary/400-1.4.pdf   


http://www.taco-hvac.com/uploads/FileLibrary/100-7.1.pdf    Taco air vents, rebuild able .

[AirForcePOL]

I noticed they don't include prices lol they look pretty cool though I might look into those.  I'll be getting a new setup soon so I'm looking for ideas.  Thanks for sharing!

[LittleJohn]

I noticed they don't include prices lol they look pretty cool though I might look into those...

What is that old rule, if you have to ask you can't afford

The large hydraulic seperators are pretty cool, saw one on a commercial job the other day had 4 - 3" lines feeding into it, just think of the $$$

[Sprinter]

Yeah, I have no idea why they are so expensive. Taco has the all copper version for $289 and then there's a few residential units in the $650-980 range. And go up from there. $10k units commercial. That's kinda why I mentioned building one yourself. There are a few hydro links or hydroblok units. But if you just silver solder your connections and hole saw for ports you can use copper. Or weld steel. I will put up a few pics when I can of the steel versions. I like them cause they do several things at once, air ,dirt, hydraulic separation just like primary secondary piping headers all in one unit. It allows you circulator sizes to have more room for error or more forgiving however you want to call it.