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khlgupta1972
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Join Date: Oct 2013
Posts: 5

Vacuum Pump

09/06/2014 8:56 AM

which is the best vacuum pump rotary vane pump or rotary piston pump?
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Noudge79
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#1

Re: Vacuum Pump

09/06/2014 9:01 AM

no doubt the piston type

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lyn
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#2

Re: Vacuum Pump

09/06/2014 11:02 AM

The one with a ceramic shaft.
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Noudge79
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#6
In reply to #2

Re: Vacuum Pump

09/06/2014 8:34 PM

oh my, lyn. its pretty hot yet handle it with good care, oh it's brittle.

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Holzfeller
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#3

Re: Vacuum Pump

09/06/2014 6:13 PM

Both, although it depends.
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redfred
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#4

Re: Vacuum Pump

09/06/2014 7:37 PM

I prefer an ion pump with a good bake out to at least 120°C.

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Tornado
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#5

Re: Vacuum Pump

09/06/2014 8:15 PM

I thought pistons were usually reciprocating. They don't do much when rotating axially.

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No_eing
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#7

Re: Vacuum Pump

09/07/2014 2:05 AM

The rotary vane is the better of the two.
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Tom_Consulting
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#8

Re: Vacuum Pump

09/07/2014 6:31 AM

The more expensive one.

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IdeaSmith
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#10
In reply to #8

Re: Vacuum Pump

09/07/2014 9:18 AM

Plus the one that works!

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JIMRAT
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#9

Re: Vacuum Pump

09/07/2014 6:35 AM

When you use the term 'vacuum' it really means that you are reducing pressure by moving air/gas from one area to another ( usually the atmosphere ).

Why the preamble? It is because the answer to your question depends on YOUR answer to this question;- Which do you want, rapid removal of air or very low pressure?

A domestic vacuum cleaner does the former a piston pump the latter.

Jim

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Poison
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#11

Re: Vacuum Pump

09/08/2014 1:27 PM

The standard vacuum pump for conveying materials is a roots blower.
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silvCrow
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#12

Re: Vacuum Pump

09/08/2014 4:29 PM

If you want a reasonable answer you should tell us how this vacuum pump is going to be used and what amount of vacuum you are going to be using. Either of your choices could be correct depending upon usage.

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Users who posted comments:

Holzfeller (1); IdeaSmith (1); JIMRAT (1); lyn (1); No_eing (1); Noudge79 (2); Poison (1); redfred (1); silvCrow (1); Tom_Consulting (1); Tornado (1)

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