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Started By
Message
Can someone help decode this pump's specs for me?
Posted on 6/10/15 at 8:55 pm
Posted on 6/10/15 at 8:55 pm
I am looking for a pump that can output a constant 25" of Mercury and someone suggested the above pump. When I convert 3320 Pascal to Inches of Hg, it comes out to only 0.98 inHg. What does Ultimate Pressure mean? Do I need to consider absolute/gauge pressure? Can someone tell me if this pump will generate 25 inHg of vacuum?
9
Posted on 6/10/15 at 9:02 pm to Street Hawk
you hve to clarify...are you looking for 25 inches of mercury of output pressure or are you looking for 25 inches of mercury of vacumn?....two very different kinds of pumps are needed for one versus the other...
at any rate, I think your conversion is correct and this pump will not create 25 inches of mercury head pressure..
at any rate, I think your conversion is correct and this pump will not create 25 inches of mercury head pressure..
Posted on 6/10/15 at 9:03 pm to Spankum
What are you pumping Mercury for???
Posted on 6/10/15 at 9:04 pm to Street Hawk
25" of Hg or 25" of water column?
Isn't 25" of Hg a shitload of pressure?
Isn't 25" of Hg a shitload of pressure?
Posted on 6/10/15 at 9:05 pm to Spankum
quote:
you hve to clarify...are you looking for 25 inches of mercury of output pressure or are you looking for 25 inches of mercury of vacumn
I need a constant 25" inHg of vacuum.
Also, is Ultimate Pressure the same as Absolute Pressure?
This post was edited on 6/10/15 at 9:08 pm
Posted on 6/10/15 at 9:06 pm to White Roach
quote:
Isn't 25" of Hg a shitload of pressure?
about 12 psig, if I remember right...
Posted on 6/10/15 at 9:07 pm to Street Hawk
My billable rate is $150 an hour so once the check clears I'll give you an answer
Posted on 6/10/15 at 9:11 pm to Spankum
12.27 PSIG is the pressure which is 84,598 Pa
Posted on 6/10/15 at 9:11 pm to CP3
My rates about $400, but it won't take me an hour.
Posted on 6/10/15 at 9:14 pm to CP3
quote:
My billable rate is $150 an hour so once the check clears I'll give you an answer
Posted on 6/10/15 at 9:14 pm to C
me neither. I'm entry level though so he gets a bargainPosted on 6/10/15 at 9:15 pm to Street Hawk
quote:
I need a constant 25" inHg of vacuum.
ok...so, are you looking for a pump that can deliver that vacumn over the long term or are you looking for something that can be used sporadically for pumping down a refrigerant system?
also, will this pump need to be portable or will it be mounted somewhere in a fixed application?...
Posted on 6/10/15 at 9:19 pm to Street Hawk
Might help if you had specified this is a dry vacuum pump. Ultimate pressure isn't a positive reference here, it's telling you it can draw down to 3.32kPa (atmosphere is 101.4 kPa) which is almost 29 in-Hg gauge or between 96% and 97% vacuum. So yeah, that pump would work.
This post was edited on 6/10/15 at 9:20 pm
Posted on 6/10/15 at 9:19 pm to Spankum
quote:
ok...so, are you looking for a pump that can deliver that vacumn over the long term or are you looking for something that can be used sporadically for pumping down a refrigerant system?
It will be a continuous application that runs 24/7, 365 days a year.
quote:
also, will this pump need to be portable or will it be mounted somewhere in a fixed application?...
Doesn't need to be portable. We will run vacuum lines to the machine that requires this vacuum.
Posted on 6/10/15 at 9:21 pm to Street Hawk
DAT 50-D doe
Posted on 6/10/15 at 9:22 pm to Street Hawk
also, what material will it be pumping (i.e. flammible gas, corrosive gas, intert gas, hydrocarbons, etc?)...
Posted on 6/10/15 at 9:23 pm to Spankum
Mercury.
Posted on 6/10/15 at 9:27 pm to Street Hawk
From the manufacturer's website*:
"It is a pump only in the room. Please do not set it up in the place, that rain and water splash, and outdoors."
Now be honest, did you, set it up in the place, that rain and water splash, and outdoors?
* LINK
"It is a pump only in the room. Please do not set it up in the place, that rain and water splash, and outdoors."
Now be honest, did you, set it up in the place, that rain and water splash, and outdoors?
* LINK
This post was edited on 6/10/15 at 9:28 pm
Posted on 6/10/15 at 9:31 pm to Spankum
quote:
also, what material will it be pumping (i.e. flammible gas, corrosive gas, intert gas, hydrocarbons, etc?)...
Clean Dry Air (CDA)
Posted on 6/10/15 at 9:33 pm to Street Hawk
My question is where are you going to find a 100 volt system to use this with?
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