[Steam-engine] Throttle valve

[Richard Strobel]

Thanks much to Robert, Dave and Blake!!  I've spent some time on the 
websites mentioned and found them quite educational.  When Dave mentioned 
"Plug Valve" which is new to me, google reavealed some interesting sites and 
now have a better understanding of throttle valve.  I can see it's 
advantages...thanks Dave.

   Will continue to march on

RickinMt.


----- Original Message ----- 
From: "Blake" <blake at little-mountain.com>
To: "Steam-engine mailing list" <steam-engine at lists.stationary-engine.com>
Sent: Monday, March 20, 2006 4:16 PM
Subject: Re: [Steam-engine] Throttle valve


> I'm just thinking the valves that are made for higher pressure are
> probably more durable and less likely to cut from steam. I doubt they
> are much more money than the cheapies.
>
> Whatever ball valves you choose, I bet they won't last as long as a
> regular throttle valve. But since they are relatively cheap, you can
> replace them every few years.
>
> Blake
>
> On Mar 20, 2006, at 9:29 AM, Richard Strobel wrote:
>
> >   Blake, not trying to start a flame war.  I just can't fathom why
> > I would
> > want to use such a high pressure hand valve on a 100 MAWP system.
> > What am I
> > missing?
> >
> >    Totally agree that the sealing surfaces should be of the right
> > material.
> > "WSP" is also in the equation.
> >
> >   Mt. Chief Inspector is supposed to be getting me some info on the
> > proper
> > valves to use, but that was several weeks ago.  I know one
> > inspector likes
> > to see stamping on the valves.
> >
> >
> > thanks much!
> > Rick
> >
> >
> >
> >
> >> I believe there are different grades of ball valves - some have brass
> >> balls and seats and some have nylon seats, while some have stainless
> >> balls and seats. I would get one made for the highest pressure and
> >> with the most durable components. We have some 600 psi valves and
> >> some 2000 psi ball valves at work. I think I'd use the 2000 psi
> >> valves for what you are doing.
> >>
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> >
> >
> >
>
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