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Participant

Join Date: Apr 2010
Location: bangalore
Posts: 3

Reciprocating Compressor

12/30/2010 10:03 AM

what will be the effect if we change the direction of rotation of a 2 cylinder multi stage reciprocating compressor ?

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Guru

Join Date: Oct 2008
Posts: 42355
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#1

Re: reciprocating compressor

12/30/2010 10:15 AM

You'll suck all the air out of your pipes and collapse any air tanks you have. All your air tools will run backwards and don't even think about trying to paint anything.

Seriously, I don't think the compressor cares which way it turns. But I'm not a compressor expert, I'm just a jerk with an opinion.

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Anonymous Poster
#2
In reply to #1

Re: reciprocating compressor

12/30/2010 11:27 AM

ok finaly tell me it will suck evry thing or it will hv no effect or u dont kno ?

single stage compressor there will be no efffect but its a 2 stage compressor.

if its a joke thn its a classy joke bro !

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Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
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#3

Re: Reciprocating Compressor

12/30/2010 12:21 PM

It depends on the particular compressor. Sometimes you have to flip the oil pump over, sometimes it doesn't matter, and sometimes you have to stick with the specified direction.

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Active Contributor

Join Date: Dec 2007
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#4

Re: Reciprocating Compressor

12/30/2010 4:24 PM

if it is splash oil, it doesn't matter, the valves are just check valves typically. there may be some minor effect because of the phasing change - the low pressure may be trying to output into a high pressure cylinder that is pressurizing. Worst case, you put a longer pipe between the two.

If it is pumped lubrication, make sure the pump will pump when turning in the direction you want

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Associate

Join Date: May 2010
Posts: 26
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#5

Re: Reciprocating Compressor

01/01/2011 4:23 PM

Hi, generaly multistage reciprocating compressors are double acting. So, there will be no such effect on compression. But if it is fitted with a rotary lub oil pump, lubrication will hamper totally and it will ceased within a short period as the rotation of lub pump will be reversed causing reversing of suction and discharge of pump.These pumps are genraly gear pumps. If it is splash lubricated, then no problem.

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Suranjan Chattopadhyay
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Join Date: Jan 2011
Posts: 8
#6

Re: Reciprocating Compressor

01/22/2011 3:19 PM

as mr suranjan said there will be no effect unless u got a gear oil pump u have to convert it up side down if there is acessability.

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Anonymous Poster (1); lyn (1); maniacal_engineer (1); moamen84 (1); Suranjan Chattopadhyay (1); Tornado (1)

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