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Re: [APD] AAS Check Valve
Thank you Douglas! Once again I forgot all about McMaster as a source
of such parts. Google never seems to remember them either. Those
valves are so cheap they are probably a better deal, even with
shipping, than a reasonably reliable ball valve. I plan to put the
check valve on the inlet to the bubble counter, a DIY unit, so it
should only see the regulator outlet pressure at most, and the head of
water above the reactor or about 2 psi or less almost all of the time.
This check valve location protects the bubble counter from high
pressure if the check valve cracking pressure goes up. That is
probably the direction I will go now. Thanks again.
On Sunday, April 17, 2005, at 10:41 AM, Douglas Guynn wrote:
If you plan on keeping less than 15 psig on your system, go to
www.mcmaster.com and enter "diaphragm check" (no quotes) in the search
I would suggest the Nylon body with Viton Diaphragm #47245K18 for
If you want to run more than 15 pisg, go to page 387 and choose either
PVC Spring-Loaded Ball Check Valves (#7933K31) or the Spring-Loaded
Check Valves with Barbed Connections (#6079T53 @ $3.56 or 7757K13 @
Enter usual disclaimers.
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