Question about Ingersoll Rand - Rand Type - 30 Reciprocating Air Compressor - 5 Hp, 230 Volt 1 Phase, Model - 2340L5

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Poor supply air pressure

We have an air compressor ingeressol rand type t30 (3 stage) ..THE MAIN PROBLEM that the suplly air pressure from the third stage is poor,and we found that the first stage is have excess temperature.

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3 stage? It sounds like the first stage has a leaking valve, possibly second stage also - this would explain both the high temperature in stage 1 and the poor pressure from the final stage. Take a look at page 6 of the following link. This is the typical intake and outlet valve diagram for each stage. Valves #2 are intake valves, and valves #6 and 7 are discharge valves. They all perform like check valves, each valve allowing air flow in only one direction. It sounds like your valves are leaking between 1st and 2nd stages. Possibly debris in the valves, or valves damaged. Try taking air intake filter off and check for damage to air filter and debris at intake. Also try removing valve plates and check for debris/damaged valves on first and second stages.

http://www.irservicenet.com/filestorage/SCD-749_.pdf

Posted on May 06, 2010

  • mitch May 06, 2010

    Other possibility might be piston rings in first stage are bad, have you checked oil? I would check filter and valves first though.

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