"Ivan Vegvary" wrote in message
news:L0%Xa.50908$Oz4.14553@rwcrnsc54...
If the above is INCORRECT, then, somebody please explain how the reducer
works. How is it able to reduce the static pressure?

AFAIK, it works by metering with say a needle valve, actuated by an
adjustable diaphragm which senses the output pressure, such that if
perssure falls, the valve opens, and conversely if pressure rises it
shuts it off. If this valve can close fully with no leakage then it
should be capable of holding with no load.

Tim

--
In the immortal words of Ned Flanders: "No foot longs!"
Website @ http://webpages.charter.net/dawill/tmoranwms