General Category > Equipment and Software
butterfly vs. ball
tschmidlin:
Thanks all. I ordered a couple of butterfly valves, mostly for sanitary reasons.
punatic:
You didn't study fluid mechanics in the engineering core?
tschmidlin:
--- Quote from: punatic on January 09, 2013, 12:28:56 AM ---You didn't study fluid mechanics in the engineering core?
--- End quote ---
Yes, but that was a long time ago and I'm not worried about the fluid dynamics, just sanitation and blockage. But if there is some factor I haven't considered I figured someone here would bring it up. :)
punatic:
Ball valves have smooth edges, conducive to one smooth flow path. Butterfly valves have a cutting edge, splitting the flow and providing a catch point surface. Gate valves on the otherhand provide finer tuning...
kylekohlmorgen:
--- Quote from: punatic on January 09, 2013, 01:42:13 AM ---Ball valves have smooth edges, conducive to one smooth flow path. Butterfly valves have a cutting edge, splitting the flow and providing a catch point surface. Gate valves on the otherhand provide finer tuning...
--- End quote ---
That's why butterfly valves are poor for regulating flow from a higher-pressure pump - they tend to wear and leak. I don't think a March pump would cause issues though.
They do have to be a LOT easier to clean than ball valves. Tom - have you used the new valves yet?
I don't think you could keep a gate valve clean/sanitary.
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