[Steam-engine] Hand valve preference, now blowdown

Blake blake at little-mountain.com
Wed Mar 29 15:04:45 PST 2006


Globe valves are better at regulating flow, but gate valves are less  
susceptible to catching debris and are less restrictive. As far as  
throttle valves, my Rumely had a gate valve type throttle. I think  
our Buffalo Pitts does also.

Blake

On Mar 29, 2006, at 10:17 AM, Richard Strobel wrote:

> There ya go, Jim, and I've had that happen in other applications.   
> Also
> tried to redo the gate with very limited success.
>
>   Is there a specific handvalve that is used on the blowdown?  Our  
> App. C,
> also requires a cap/plug on the blowdown valve which makes sense.   
> Is a
> blowdown opened quickly or slowly?  Friend and I are having a  
> discussion the
> past few days on that.
>
> Regards
> Rick
>
>
>
>
>
>
> ----- Original Message -----
> From: "James Showers" <steamcar at frontiernet.net>
> To: "Steam-engine mailing list" <steam-engine at lists.stationary- 
> engine.com>
> Sent: Wednesday, March 29, 2006 7:57 AM
> Subject: Re: [Steam-engine] Hand valve preference
>
>
>> Another thought is that a gate valve is more susceptible to a  
>> piece of
>> scale
>> keeping the valve from sealing when closed.  Any foreign object in  
>> the
>> channel the gate moves in can cause this problem.
>> Jim Showers
>>
>> ----- Original Message -----
>> From: "Richard Strobel" <Richard_Strobel7 at msn.com>
>> To: "Steam-engine mailing list" <steam-engine at lists.stationary- 
>> engine.com>
>> Sent: Tuesday, March 28, 2006 9:08 AM
>> Subject: [Steam-engine] Hand valve preference
>>
>>
>>>   Hello;
>>> Been told by a very knowledgeable source that "Globe" type hand  
>>> valves
>>> are
>>> the preferred valve to use with feedwater piping.  Now everywhere  
>>> I read
>>> it states that "Gate" valves are less restrictive in regards to  
>>> pressure
>>> drop.
>>>
>>>   Would someone please set me straight here...hope I didn't re- 
>>> open up
>>> that can of worms!!!
>>>
>>>
>>>   Thanks in anticipation,
>>>
>>>   RickinMt.
>>> _______________________________________________
>>> Steam-engine mailing list
>>> http://www.stationary-engine.com/mailman/listinfo/steam-engine
>>>
>>
>>
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