Al Gietzen wrote:

Thanks for the response.  This is all very good information.

Is there any merit to placing a check valve in the 25 psi bottle between

the

high pressure section and the lower pressure bleeder line feeds?   I'm
thinking of something similar to the what you see in the pressure caps

where

there is a solid washer (no hole in the center) that drops over the outlet
port where the pressure keeps it shut under normal operating conditions.
You could add a small spring to help hold it shut.  If you have vapor
pressure developing through the bleeder lines the valve would open and the
vapor would pass through to the pressure cap.  Under normal conditions the
check valve would prevent the coolant from reversing flow down through the
bleeder lines to the low pressure side of the system.
Del

Del;
The filler bottle is plumbed to the line near the inlet side of the pump, so
it is always at the low pressure point in the loop; there will always be
some small flow from the rad tanks to the bottle through the bleed lines
(3/16" o.d.).  I see no reason for check valves.

Al

The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.