One of the hobbyists asks me in the pm, what is a good alternative of expensive swagelok or parker hannifin system mounted check valve, I do have the answer, but figure to answer here is better, more people will know.
Swagelok and Parker Hannifin check valves are really good, but price tag are huge and most require tube end adapters.
here is another good Stainless steel industrial/lab grade check valve, it is the SMC 210 series, piston design, 1/8 npt ports, ready to connect, and, much cheaper...
SMC 210 series check valve.
all parts are saltwater rated 316/316L stainless steel in the picture.
The 210 also comes in brass (~$9) with cracking pressures of 0.33psi or 1psi. It also comes in nickel-plated brass but is listed under the AK series (~$11): AKH for push-connect and AKB for bushing type with cracking pressure of 0.72psi.
I recommend the push-connect if not using a hard-plumbed BC.
Last edited by Solcielo lawrencia; 02-27-2014 at 11:26 PM.
Reason: Added and changed cracking pressures.
Well those didn't last long now did they? I was going to get a couple but had to wait until I got off work and then I go to buy them and there all gone. Oh well I guess I will keep an eye out for them again. Thanks for the info Bettatail.
Edit: nvm I found them. I guess I wasn't looking good enough
All matter is merely energy condensed to a slow vibration, we are all one consciousness experiencing itself subjectively, there is no such thing as death life is only a dream which is an imagination of ourselves. Bill Hicks
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