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#Post#: 48003--------------------------------------------------
Microcosm gas pressure regulator setup
By: MadeForThat Date: December 30, 2021, 12:33 pm
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Hi, I am hopeful Jin will be able to answer this, but anyone who
knows can chime in: can I run the regulator in contact with
water, or does it need to be "isolated" like a pressure gauge
(by a siphon) see below for how I was thinking I may mount it if
it doesn't matter. [attachimg=1]
#Post#: 48004--------------------------------------------------
Re: Microcosm gas pressure regulator setup
By: Raphael HAVRANEK Date: December 30, 2021, 1:12 pm
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Bonjour,
No problem with this way of mounting your regulator, I did an
equivalent on several of my boats, see my videos below.
However, a siphon protects the diaphragm, never mind, you can
change it easily.
(HTM) https://www.youtube.com/watch?v=AMjCdql1xek
(HTM) https://www.youtube.com/watch?v=hR0dupJQJv0
#Post#: 48007--------------------------------------------------
Re: Microcosm gas pressure regulator setup
By: MadeForThat Date: December 30, 2021, 2:04 pm
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Excellent, thank you Raphael! I have not yet landed on a layout
for my gas, blow down and feed water piping but it is good to
know this isn't a major concern. Have you had to replace the
membrane at all while running it this way?
#Post#: 48011--------------------------------------------------
Re: Microcosm gas pressure regulator setup
By: Raphael HAVRANEK Date: December 30, 2021, 3:02 pm
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Bonjour,
I think I was one of the first steam passionates (in France) to
get several of these regulators and the first ones had poor
quality membranes, this is why I changed them with 0,5 mm
nitrile ones. Furthermore I enhanced one of them like this :
(HTM) https://www.youtube.com/watch?v=aU37YAuOkKM
Currently, they are delivered with a second pair of membranes.
#Post#: 48012--------------------------------------------------
Re: Microcosm gas pressure regulator setup
By: RedRyder Date: December 30, 2021, 3:17 pm
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Nice work!
#Post#: 48013--------------------------------------------------
Re: Microcosm gas pressure regulator setup
By: MadeForThat Date: December 30, 2021, 3:24 pm
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Very nice Raphael, I will do the same modification if you think
it is worthwhile. Do you use a feed water pump on the boiler
that deformed the membrane? I wonder if the vacuum from your
boiler would have been eliminated by the feed water check
valves, and saved the membrane.
#Post#: 48014--------------------------------------------------
Re: Microcosm gas pressure regulator setup
By: Raphael HAVRANEK Date: December 30, 2021, 4:03 pm
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Bonjour,
To my opinion, there is no link between having a feed water pump
or not as I always have a check valve with and the ferule for it
is not the one for the regulator.
Furthermore when I don't navigate, I keep my boilers open and
empty.
About the modification, it was a test for fun, I don't think it
will change anything in the life of the membrane as soon as I
assume that they have to be changed after a while. As long as
the regulator is working properly, no need to touch anything
after all.
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