Joe,
The fittings will will work great with a Goodall valve which is just a check valve anyway. The line is not pressurized until the check valve is forced open when the the water is injected under pressure.
Geoff
You mention the Ark-Plas are not for use when the line is pressurized. I was wondering if connection to a Goodall type valve is technically considered pressurized. The valve has no pressure when connecting, but of course when one begins to pump then pressure is being pumped against through a one way valve. So, can the Ark-Plas connect through a check valve?
| >Joe, | | Thanks for the site, altho the fittings seem too big. I use Ark-Plas | fittingsa lot. They are nylon I believe, very inexpensive and close | with about a 1/4 turn, good up to 60psi or more. I have one installed | my Schools but use them mostly for air connections when testing my | locos big and little. They are not designed for connecting when the | line is pressurized but work very well where there is no pressure | or when connecting where there is a check valve. They only sell them | in bulk, so they sent me quite a few gratis! This was several years | ago and I have had complete success-- with hot water too. | | Ark-Plas Products Flippin, AR (501) 453-2343
