I want to use a water lute to balance the pressure in a CVD instrument, the pressure in the chamber is increasing from 1 Pa to more than 1 atm, because this instrument will leak higher than 1 atm, so I have to open the valve before the pressure reach 1 atm, e.g 0.9 atm, and also make sure there is no air bubbles at the water lute valve position or the air will leak into the chamber.
Is there any specialist who can help me design a new water lute valve? Can I use a ball valve at the water lute position to seal the water and the vacuum in the beginning when the pressure is about 1 Pa?
Scientific Canadian Mechanics' Magazine and Canadian Patent Office Record, Feb.1881. Volumes 7-9. #12228,
regarding building and using a "Water luting" valve. Google found this in a patent for "Improvements to steam engine technology.
OK I heard about that. Try this? Buy a "water valve" from Amazon, get it shipped in a few days!
BrassCraft G2CR19X C1 1/2 in. NOM Comp Inlet x 3/8 in. OD Compression Outlet Chrome Plated Brass 1/4 Turn Angle... (I think this is a shut off valve.)
by BrassCraft $8.99
Get it by Tuesday, Jan 6
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Product Features
... 1/4-turn valve operation means only ... use with water temperatures ...
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#2 part- Frigidaire 242252702 Water Valve for Refrigerator
by Frigidaire
$26.95
This looks like what you want from the figure. Sorry I can't copy it.
Amazon says international shipping.
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