Here ya go, choose whatever pressure range you want. But here's the
thing: most technical parts are now using BPT, aka "G"/DNx threads (not
to be confused with GHT "garden hose thread"). This is G1/4 aka DN8.
All the USA hardware store stuff is NPT (MPT,FPT) and they have the same
diameter and thread pitch but G thread profile does NOT seal with NPT,
even with thread tape. Well, TBH we've sealed them before with like 10
attempts with way too much thread tape but in general no. Of course G
seals just fine with G, with thread tape.
I just bit the bullet and started building everything with G threads
until I have no choice but to switch to NPT.
https://es.aliexpress.com/item/2255800789691504.html?spm=a2g0o.order_list.0.0.5430194d4pWxuF&gatewayAdapt=glo2esp4itemAdapt
On 5/28/2022 10:40 AM, gene heskett wrote:
Greetings all;
I'm getting frustrated, but I know it has to be out there, someplace.
I need a differntial air pressure sensor, differential so it references
local barometric as its reference zero, and up to 10 psi, with a 3 wire
analog output.
I've solved the control aspect, but not how to detect a pressure to
accomplish the control.
automotive EGR types seem seem the most promising as they are affordable
and 2 port gismo's but all I can find just lists the vehicles it fits and
works with, but zero info on how to hook it up and get an analog reading
out of it. "MAP" sensors whose internal reference is a good vacumm can
have their signals clipped and massaged into something usable, but so far
I've bought 4 w/o finding a working one that actually reads the 14.7 psia
of normal air.
So how are you folks solving that problem?
Or are you burning up the shop compressor feeding your misters? I can't
see that as being an acceptible solution since none of those have an
intake muffler so you can still hear yourself think.
What I have cobbled up at the moment is giving me more than enough air to
run a mister, and I can't hear it running over the 2 fans in this 6040
mill. One in the vfd is really noisy.
Thank you.
Cheers, Gene Heskett.
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
