This document discusses compressed air systems, including compressors, maintenance, piping, and defects. It covers compressor parts and installation, maintenance schedules, types of piping, common defects that cause air leakage, and safety precautions. The key topics are installation and maintenance of compressors, piping types and their benefits, instruments used to monitor compressors, and conclusions about delivering clean compressed air without pressure loss or contamination through proper piping selection and guidelines.

1. • Introduction.
• Compressor Parts and Installment.
• Maintenance and Its Schedules.
• Piping and Its Types.
• Defects and Loss of Leakage.
• Safety Precautions.
• Conclusions.
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Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab

2. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
 WHAT IS AIR?
The invisible gaseous substance
surrounding the earth, a mixture
mainly of oxygen and nitrogen.
 Introduction
 WHAT IS A COMPRESSOR?
A compressor is a mechanical device that
increases the pressure of a gas by reducing
its volume .

3. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
 Introduction
What is Compressed Air?
Compressed air is free air that has been
forced into a smaller volume and is now at a
pressure greater than atmospheric.
A Rotary-Screw Compressor that uses a
rotary type positive-displacement mechanism.
Once air enters a rotary screw compressor, it is
trapped between mating male and female
rotors, and compressed to the required
discharge pressure.

4. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
 Introduction
• Air tools run cooler.
• Air tools have a higher power-
to-weight ratio.
• Air tools have no shock risk.
• Air tools have fewer parts and
require less maintenance.
COMPRESSED AIR POWER
VS
ELECTRICITY
COMPRESSED AIR POWER
VS
Hydraulic
• Air systems generally have fewer
parts.
• Air systems generally cost less.
• Air systems are less of a fire hazard.
• Air systems are more dirt-tolerant.
• Air systems are more tolerant to
leakage .
Differences

5.  Installation and Parts of
Compressors
Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab

6. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
 Installation and Parts of
Compressors

7. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
 Compressor Room Requirements:
• Ventilation system.
• No dust particles in compressor room.
• Room dimensions according to size if compressor.
• Drain channels.
• Should be distance between machines.
• Exhaust air ducts.
• Never use chemicals near the compressors and in compressor room.
• There should not the machine near the compressor.

8.  Filters Installed With Compressor
• Air Filter.
• Oil Filter.
• Air-Oil Separator.
• Water Separator.
• Air-Water Separator.
Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
Filters
Schedule air filters change
Inlet filter with an increase of
pressure drop of 1% reduces
compressor capacity by 1%.
Schedule Oil filters change

9. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab

10. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab

11. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
 Impurities in Compressed Air:

12. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
 COMPRESSOR MAINTENANCE
DAILY CHECKS
• General operation of machine.
• Oil System: Drain condensate from
separator vessel.
• Oil System: Check oil level. Top up if
necessary.
• As defined in the User Manual.
MONTHLY CHECKS
• Regular equipment performance
analysis
• Cleaning of components
• Tightening of electrical
connections
• Oil check
MAINTENANCE SCHEDULE SERVICE (2000 HRS):
• Oil system: Check oil level / top up oil sample if required.
• Air filter: Renew air filter.
• Oil filter: Renew oil filter.
• Electrical wiring: Check connections and condition.
Controller: Check connection and plugs.
• Cabinet filters / VSD filters: clean / Renew.
• After-cooler, oil cooler & fan.
• Clean externally.
• Control system: Checks for correct operation and control.
• Blow down system: Check for correct operation.
• Relief valve: Functionally test.

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Ghondal Road, Bharth, Sialkot, Punjab
MAINTENANCE SCHEDULE SERVICE (4000 HRS):
• Starter contactors: Checks contacts,
connections and condition.
• Oil system: Change oil.
• Separator filter: Renew filter
elements.
• Oil Scavenge system: Renew motor
lubricant cartridges
 COMPRESSOR MAINTENANCE
MAINTENANCE SCHEDULE SERVICE (8000 HRS):
• Carryout 2000Hr and 4000Hr Service.
Plus…
• Minimum pressure valve: renew
• Suction regulator: Overhaul the suction
regulator.
• Control solenoid: Renew.
• Drive coupling inserts: Checks/Renew

14. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab

15. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
Comparison

16. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
Comparison

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Ghondal Road, Bharth, Sialkot, Punjab
 Aluminum Pipe Benefits:

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Ghondal Road, Bharth, Sialkot, Punjab
 Aluminum Pipe Benefits:

19. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
 Instruments for Compressors:
 Kilo-Watt Meter
 Flow Meter

20. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab

21. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab

22. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab

23. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab

24. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
 Conclusion:
The objective of compressed air is to deliver compressed air to the end uses
without pressure loss and the introduction of contaminants. Proper piping
material selection and following guidelines for both distribution and compressor
discharge piping can help system designers accomplish this goal.
If Participant take one thing from this Presentation is that they remember larger
diameter pipe sizes reduce air velocities (and therefore turbulence) resulting in
minimized pressure losses.

25. Sigma Shoes-A Boot Company Pvt. Ltd.
Ghondal Road, Bharth, Sialkot, Punjab
Prepared By: Engr. Muhammad Zeeshan Ali
Designation: Asst. Manager Maintenance
Company Name: Sigma Shoes-A Boot Company