Establishing a regular, well-organized maintenance program and strictly following it is critical to maintaining the performance of a compressed air system and will save you time and money in the long haul.
One person should be given the responsibility of ensuring that all maintenance is performed properly, on schedule, and is adequately documented.
Ask a Question:
What are the standard recommended minimum maintenance procedures for air-cooled reciprocating compressors?
Answer:
Routine Maintenance for Air-Cooled Reciprocating Compressors
Every 8 Hours (or Daily)
• Maintain lubricant level between high- and low-level marks on bayonet gauge. (Discoloration or a higher lubricant level reading may indicate the presence of condensed liquids). If lubricant is contaminated, drain and replace.
• Drain receiver tank, drop legs and traps in the distribution system.
• Give compressor an overall visual inspection and be sure safety guards are in place.
• Check for any unusual noise or vibration.
• Check lubricant pressure on pressure lubricated units. Maintain 18 to 20 psig when compressor is at operating pressure and temperature. High-pressure rated compressors should maintain 22 to 25 psig of lubricant pressure.
• Check for lubricant leaks.
Every 40 Hours (or Weekly)
• Be certain pressure relief valves are working.
• Clean the cooling surfaces of the intercooler and compressor.
• Check the compressor for air leaks.
• Check the compressed air distribution system for leaks.
• Inspect lubricant for contamination and change if necessary.
• Clean or replace the air intake filter. Check more often under humid or dusty conditions.
Every 160 Hours (or Monthly)
• Check belt tension.
Every 500 Hours (or 3 Months)
• Change lubricant (more frequently in harsher environments).
• Check lubricant filter on pressure lubricated units (more frequently in harsher environments).
• Torque pulley-clamp screws or jam-nut.
Every 1,000 Hours (or 6 Months)
• When synthetic lubricant is used, lubricant change intervals may be extended to every 1,000 hours or every 6 months, whichever occurs first (change more frequently in harsher conditions).
• Inspect compressor valves for leakage and/or carbon build-up. The lubricant sump strainer screen inside the crankcase of pressure-lubricated models should be thoroughly cleaned with a safety solvent during every lubricant change. If excessive sludge build-up exists inside the crankcase, clean the inside of the crankcase as well as the screen. Never use a flammable or toxic solvent for cleaning. Always use a safety solvent and follow the directions provided.
Every 2,000 Hours (or 12 Months)
• Inspect the pressure switch diaphragm and contacts.
Inspect the contact points in the motor starter.
Lubrication
Compressors may be shipped without lubricant in the crankcase. Before starting the compressor, add enough lubricant to the crankcase to register between the high and low marks on the dipstick or on bull’s eye sight gauge. Use the specified lubricant or consult the manufacturer for recommendations.
Certain synthetic lubricants have proven under extensive testing to minimize friction and wear, limit lubricant carryover, and reduce carbon and varnish deposits. They will support the performance characteristics and life and are highly recommended.
Refer to the manufacturer’s specifications to determine the correct amount of lubricant and viscosity to use for your model and application. Use the supplier’s lubricant analysis program.
Contact Us 1-888-229-9999
www.IndustrialAirCompressors.biz
Email: compressors@mcguire.biz
Owned and Operated by McGuire Air Compressors, Inc.
“Real People with Real Air Compressor Experience”
For your next order of Compressor Lubricants and Filters –call 1-888-229-9999…
Or click here for SERVICE KITS and Lubricants for your compressor.
*SOURCE: Improving Compressed Air System Performance: A Sourcebook for Industry is a cooperative effort of the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) Best Practices and the Compressed Air Challenge®.
Wednesday, December 19, 2007
Friday, September 21, 2007
Need Industrial Air Compressors and equipment?
Visit http://www.industrialaircompressors.biz for quality industrial Champion Air Compressors, Pumps, Oil, and Manuals.
You’re probably asking…
“Who owns www.IndustrialAirCompressors.biz?”
It’s good to know who you’re doing business with …and we understand and agree!
On a lot of internet sites, you have no idea WHO you are really buying from.
At www.IndustrialAirCompressors.biz…we are REAL PEOPLE with REAL AIR COMPRESSOR EXPERIENCE!
This site OWNED & OPERATED by Tommy McGuire and his business McGuire Air Compressors, Inc. and this site sells CHAMPION® AIR COMPRESSORS only.
Tommy and his company McGuire Air Compressors are AUTHORIZED DISTRIBUTORS for CHAMPION® AIR COMPRESSORS. CHAMPION® is owned by Gardner Denver and has been well known in the industry for over 85 years for quality equipment with an excellent Warranty. CHAMPION® Air Compressors has over 1000 service centers all over the USA to service anything you might buy on this site.
Tommy started his business servicing and selling AIR COMPRESSORS over 25 years ago. Before that, he was a CERTIFIED MASTER MECHANIC in the automotive industry. He grew up working in his Dad’s auto repair shop and “learned to fix almost anything.”
Tommy’s knowledge of air compressor systems, controls, and related equipment is quite extensive. He even assists many engineers and contractors in determining what equipment they need for the most efficient compressed air system.
Since 1981, Tommy has owned and operated McGuire Air Compressors in Graham, NC. He and his staff of Certified Service Technicians have worked with compressors from ½ horsepower to over 700 hp.
McGuire Air Compressors, Inc. is located in a 10,000 square foot facility in the heart of Piedmont North Carolina. If you are in this immediate area and need SERVICE WORK, feel free to call.
Thanks for checking out WHO we are!
McGuire Air Compressors, Inc.
www.IndustrialAirCompressors.biz
Physical Location: 729 East Elm St, Graham NC 27253
Mailing Address: P.O. Box 1100, Graham NC 27253
Phone: 1-888-229-9999 or (336) 229-9999
Fax: (336) 229-9998
Email: compressors@mcguire.biz
“Who owns www.IndustrialAirCompressors.biz?”
It’s good to know who you’re doing business with …and we understand and agree!
On a lot of internet sites, you have no idea WHO you are really buying from.
At www.IndustrialAirCompressors.biz…we are REAL PEOPLE with REAL AIR COMPRESSOR EXPERIENCE!
This site OWNED & OPERATED by Tommy McGuire and his business McGuire Air Compressors, Inc. and this site sells CHAMPION® AIR COMPRESSORS only.
Tommy and his company McGuire Air Compressors are AUTHORIZED DISTRIBUTORS for CHAMPION® AIR COMPRESSORS. CHAMPION® is owned by Gardner Denver and has been well known in the industry for over 85 years for quality equipment with an excellent Warranty. CHAMPION® Air Compressors has over 1000 service centers all over the USA to service anything you might buy on this site.
Tommy started his business servicing and selling AIR COMPRESSORS over 25 years ago. Before that, he was a CERTIFIED MASTER MECHANIC in the automotive industry. He grew up working in his Dad’s auto repair shop and “learned to fix almost anything.”
Tommy’s knowledge of air compressor systems, controls, and related equipment is quite extensive. He even assists many engineers and contractors in determining what equipment they need for the most efficient compressed air system.
Since 1981, Tommy has owned and operated McGuire Air Compressors in Graham, NC. He and his staff of Certified Service Technicians have worked with compressors from ½ horsepower to over 700 hp.
McGuire Air Compressors, Inc. is located in a 10,000 square foot facility in the heart of Piedmont North Carolina. If you are in this immediate area and need SERVICE WORK, feel free to call.
Thanks for checking out WHO we are!
McGuire Air Compressors, Inc.
www.IndustrialAirCompressors.biz
Physical Location: 729 East Elm St, Graham NC 27253
Mailing Address: P.O. Box 1100, Graham NC 27253
Phone: 1-888-229-9999 or (336) 229-9999
Fax: (336) 229-9998
Email: compressors@mcguire.biz
Compressed Air Glossary - G thru L
Valuable information for people who work with compressed air systems.
Here's the third addition to the Compressed Air Glossary:
Gas - One of the three basic phases of matter. While air is a gas, in pneumatics the term gas normally is applied to gases other than air.
Gas bearings - Load carrying machine elements permitting some degree of motion in which the lubricant is air or some other gas.
Gauge Pressure - The pressure determined by most instruments and gauges, usually expressed in psig. Barometric pressure must be considered to obtain true or absolute pressure.
Guide vane - A stationary element that may be adjustable and which directs the flowing medium approaching the inlet of an impeller.
Head, Adiabatic - The energy, in foot pounds, required to compress adiabatically to deliver one pound of a given gas from one pressure level to another.
Head, Polytropic - The energy, in foot pounds, required to compress polytropically to deliver one pound of a given gas from one pressure level to another.
Horsepower, Brake - Horsepower delivered to the output shaft of a motor or engine, or the horsepower required at the compressor shaft to perform work.
Horsepower, Indicated - The horsepower calculated from compressor indicator diagrams. The term applies only to displacement type compressors.
Horsepower, Theoretical or Ideal - The horsepower required to isothermally compress the air or gas delivered by the compressor at specified conditions.
Humidity, Relative - The relative humidity of a gas (or air) vapor mixture is the ratio of the partial pressure of the vapor to the vapor saturation pressure at the dry bulb temperature of the mixture.
Humidity, Specific - The weight of water vapor in an air vapor mixture per pound of dry air.
Hysteresis - The time lag in responding to a demand for air from a pressure regulator.
Impeller - The part of the rotating element of a dynamic compressor which imparts energy to the flowing medium by means of centrifugal force. It consists of a number of blades which rotate with the shaft.
Indicated Power - Power as calculated from compressor-indicator diagrams.
Indicator card - A pressure - volume diagram for a compressor or engine cylinder, produced by direct measurement by a device called an indicator.
Inducer - A curved inlet section of an impeller.
Inlet Pressure - The actual pressure at the inlet flange of the compressor.
Intercooling - The removal of heat from air or gas between compressor stages.
Intercooling, degree of - The difference in air or gas temperatures between the inlet of the compressor and the outlet of the intercooler.
Intercooling, perfect - When the temperature of the air or gas leaving the intercooler is equal to the temperature of the air or gas entering the inlet of the compressor.
Isentropic compression - See Compression, Isentropic.
Isothermal compression - See Compression, Isothermal.
Leak - An unintended loss of compressed air to ambient conditions.
Liquid piston compressor - A compressor in which a vaned rotor revolves in an elliptical stator, with the spaces between the rotor and stator sealed by a ring of liquid rotating with the impeller.
Load Factor - Ratio of average compressor load to the maximum rated compressor load over a given period of time.
Load Time - Time period from when a compressor loads until it unloads.
Load/Unload Control - Control method that allows the compressor to run at full-load or at no load while the driver remains at a constant speed.
Tuesday, July 17, 2007
Compressed Air Glossary - D thru F
Air Compressor Terms-what does it mean?
Part two of a valuable resource- A Compressed Air System Glossary:
(For Part One-see our May 07 posting)
Degree of Intercooling - The difference in air or gas temperature between the outlet of the intercooler and the inlet of the compressor.
Deliquescent - Melting and becoming a liquid by absorbing moisture.
Desiccant - A material having a large proportion of surface pores, capable of attracting and removing water vapor from the air.
Dew Point - The temperature at which moisture in the air will begin to condense if the air is cooled at constant pressure. At this point the relative humidity is 100%. The temperature to which air must be cooled, at a given pressure and water-vapor content, for it to reach saturation; the temperature at which dew begins to form.
Demand - Flow of air at specific conditions required at a point or by the overall facility.
Diaphragm - A stationary element between the stages of a multi-stage centrifugal compressor. It may include guide vanes for directing the flowing medium to the impeller of the succeeding stage. In conjunction with an adjacent diaphragm, it forms the diffuser surrounding the impeller.
Diaphragm cooling - A method of removing heat from the flowing medium by circulation of a coolant in passages built into the diaphragm.
Diffuser - A stationary passage surrounding an impeller, in which velocity pressure imparted to the flowing medium by the impeller is converted into static pressure.
Digital Controls - See Logic Controls.
Discharge Pressure - Air pressure produced at a particular point in the system under specific conditions.
Discharge Temperature - The temperature at the discharge flange of the compressor.
Displacement - The volume swept out by the piston or rotor(s) per unit of time, normally expressed in cubic feet per minute.
Droop - The drop in pressure at the outlet of a pressure regulator, when a demand for air occurs.
Dynamic Type Compressors - Compressors in which air or gas is compressed by the mechanical action of rotating impellers imparting velocity and pressure to a continuously flowing medium. (Can be centrifugal or axial design)
Efficiency - Any reference to efficiency must be accompanied by a qualifying statement which identifies the efficiency under consideration, as in the following definitions of efficiency:
Efficiency, Compression - Ratio of theoretical power to power actually imparted to the air or gas delivered by the compressor.
Efficiency, Isothermal - Ratio of the theoretical work (as calculated on an isothermal basis) to the actual work transferred to a gas during compression.
Efficiency, Mechanical - Ratio of power imparted to the air or gas to brake horsepower (bhp).
Efficiency, Polytropic - Ratio of the polytropic compression energy transferred to the gas, to the actual energy transferred to the gas.
Efficiency, Volumetric - Ratio of actual capacity to piston displacement.
Exhauster - A term sometimes applied to a compressor in which the inlet pressure is less than atmospheric pressure.
Expanders - Turbines or engines in which a gas expands, doing work, and undergoing a drop in temperature. Use of the term usually implies that the drop in temperature is the principle objective. The orifice in a refrigeration system also performs this function, but the expander performs it more nearly isentropically, and thus is more effective in cryogenic systems.
Filters - Devices for separating and removing particulate matter, moisture or entrained lubricant from air.
Flange connection - The means of connecting a compressor inlet or discharge connection to piping by means of bolted rims (flanges).
Fluidics - The general subject of instruments and controls dependent upon low rate of flow of air or gas at low pressure as the operating medium. These usually have no moving parts.
Free Air - Air at atmospheric conditions at any specified location, unaffected by the compressor.
Full-Load - Air compressor operation at full speed with a fully open inlet and discharge delivering maximum air flow.
Part two of a valuable resource- A Compressed Air System Glossary:
(For Part One-see our May 07 posting)
Degree of Intercooling - The difference in air or gas temperature between the outlet of the intercooler and the inlet of the compressor.
Deliquescent - Melting and becoming a liquid by absorbing moisture.
Desiccant - A material having a large proportion of surface pores, capable of attracting and removing water vapor from the air.
Dew Point - The temperature at which moisture in the air will begin to condense if the air is cooled at constant pressure. At this point the relative humidity is 100%. The temperature to which air must be cooled, at a given pressure and water-vapor content, for it to reach saturation; the temperature at which dew begins to form.
Demand - Flow of air at specific conditions required at a point or by the overall facility.
Diaphragm - A stationary element between the stages of a multi-stage centrifugal compressor. It may include guide vanes for directing the flowing medium to the impeller of the succeeding stage. In conjunction with an adjacent diaphragm, it forms the diffuser surrounding the impeller.
Diaphragm cooling - A method of removing heat from the flowing medium by circulation of a coolant in passages built into the diaphragm.
Diffuser - A stationary passage surrounding an impeller, in which velocity pressure imparted to the flowing medium by the impeller is converted into static pressure.
Digital Controls - See Logic Controls.
Discharge Pressure - Air pressure produced at a particular point in the system under specific conditions.
Discharge Temperature - The temperature at the discharge flange of the compressor.
Displacement - The volume swept out by the piston or rotor(s) per unit of time, normally expressed in cubic feet per minute.
Droop - The drop in pressure at the outlet of a pressure regulator, when a demand for air occurs.
Dynamic Type Compressors - Compressors in which air or gas is compressed by the mechanical action of rotating impellers imparting velocity and pressure to a continuously flowing medium. (Can be centrifugal or axial design)
Efficiency - Any reference to efficiency must be accompanied by a qualifying statement which identifies the efficiency under consideration, as in the following definitions of efficiency:
Efficiency, Compression - Ratio of theoretical power to power actually imparted to the air or gas delivered by the compressor.
Efficiency, Isothermal - Ratio of the theoretical work (as calculated on an isothermal basis) to the actual work transferred to a gas during compression.
Efficiency, Mechanical - Ratio of power imparted to the air or gas to brake horsepower (bhp).
Efficiency, Polytropic - Ratio of the polytropic compression energy transferred to the gas, to the actual energy transferred to the gas.
Efficiency, Volumetric - Ratio of actual capacity to piston displacement.
Exhauster - A term sometimes applied to a compressor in which the inlet pressure is less than atmospheric pressure.
Expanders - Turbines or engines in which a gas expands, doing work, and undergoing a drop in temperature. Use of the term usually implies that the drop in temperature is the principle objective. The orifice in a refrigeration system also performs this function, but the expander performs it more nearly isentropically, and thus is more effective in cryogenic systems.
Filters - Devices for separating and removing particulate matter, moisture or entrained lubricant from air.
Flange connection - The means of connecting a compressor inlet or discharge connection to piping by means of bolted rims (flanges).
Fluidics - The general subject of instruments and controls dependent upon low rate of flow of air or gas at low pressure as the operating medium. These usually have no moving parts.
Free Air - Air at atmospheric conditions at any specified location, unaffected by the compressor.
Full-Load - Air compressor operation at full speed with a fully open inlet and discharge delivering maximum air flow.
Yes! You can buy air compressors online-Safe & Secure
Who own's www.IndustrialAirCompressors.biz?
It’s good to know who you’re doing business with …and we understand and agree! On a lot of internet sites, you have no idea WHO you are really buying from.
At www.IndustrialAirCompressors.biz…we are REAL PEOPLE with REAL AIR COMPRESSOR EXPERIENCE!
This site OWNED & OPERATED by Tommy McGuire and his business McGuire Air Compressors, Inc. and this site sells CHAMPION® AIR COMPRESSORS only.
Tommy and his company McGuire Air Compressors are AUTHORIZED DISTRIBUTORS for CHAMPION® AIR COMPRESSORS. CHAMPION® is owned by Gardner Denver and has been well known in the industry for over 85 years for quality equipment with an excellent Warranty. CHAMPION® Air Compressors has over 1000 service centers all over the USA to service anything you might buy on this site.
Tommy started his business servicing and selling AIR COMPRESSORS over 25 years ago. Before that, he was a CERTIFIED MASTER MECHANIC in the automotive industry. He grew up working in his Dad’s auto repair shop and “learned to fix almost anything.”
Tommy’s knowledge of air compressor systems, controls, and related equipment is quite extensive. He even assists many engineers and contractors in determining what equipment they need for the most efficient compressed air system.
Since 1981, Tommy has owned and operated McGuire Air Compressors in Graham, NC. He and his staff of Certified Service Technicians have worked with compressors from ½ horsepower to over 700 hp.
McGuire Air Compressors, Inc. is located in a 10,000 square foot facility in the heart of Piedmont North Carolina. If you are in this immediate area and need SERVICE WORK, feel free to call.
Thanks for checking out WHO we are!
McGuire Air Compressors, Inc.
www.IndustrialAirCompressors.biz
Physical Location: 729 East Elm St, Graham NC 27253
Mailing Address: P.O. Box 1100, Graham NC 27253
Phone: 1-888-229-9999 or (336) 229-9999
Fax: (336) 229-9998
At www.IndustrialAirCompressors.biz…we are REAL PEOPLE with REAL AIR COMPRESSOR EXPERIENCE!
This site OWNED & OPERATED by Tommy McGuire and his business McGuire Air Compressors, Inc. and this site sells CHAMPION® AIR COMPRESSORS only.
Tommy and his company McGuire Air Compressors are AUTHORIZED DISTRIBUTORS for CHAMPION® AIR COMPRESSORS. CHAMPION® is owned by Gardner Denver and has been well known in the industry for over 85 years for quality equipment with an excellent Warranty. CHAMPION® Air Compressors has over 1000 service centers all over the USA to service anything you might buy on this site.
Tommy started his business servicing and selling AIR COMPRESSORS over 25 years ago. Before that, he was a CERTIFIED MASTER MECHANIC in the automotive industry. He grew up working in his Dad’s auto repair shop and “learned to fix almost anything.”
Tommy’s knowledge of air compressor systems, controls, and related equipment is quite extensive. He even assists many engineers and contractors in determining what equipment they need for the most efficient compressed air system.
Since 1981, Tommy has owned and operated McGuire Air Compressors in Graham, NC. He and his staff of Certified Service Technicians have worked with compressors from ½ horsepower to over 700 hp.
McGuire Air Compressors, Inc. is located in a 10,000 square foot facility in the heart of Piedmont North Carolina. If you are in this immediate area and need SERVICE WORK, feel free to call.
Thanks for checking out WHO we are!
McGuire Air Compressors, Inc.
www.IndustrialAirCompressors.biz
Physical Location: 729 East Elm St, Graham NC 27253
Mailing Address: P.O. Box 1100, Graham NC 27253
Phone: 1-888-229-9999 or (336) 229-9999
Fax: (336) 229-9998
Wednesday, May 30, 2007
Air Compressor terms: What does it mean?
Here's the first installment of a valuable Compressed Air Glossary...
A helpful tool for purchasing agents, engineers, maintenance supervisors
and business owners who need to work with compressed air systems.
COMPRESSED AIR SYSTEM GLOSSARY "A through C"
COMPRESSED AIR SYSTEM GLOSSARY "A through C"
Absolute Pressure - Total pressure measured from zero.
Absolute Temperature - See Temperature, Absolute.
Absorption - The chemical process by which a hygroscopic desiccant, having a high affinity with water, melts and becomes a liquid by absorbing the condensed moisture.
Actual Capacity - Quantity of gas actually compressed and delivered to the discharge system at rated speed and under rated conditions. Also called Free Air Delivered (FAD).
Adiabatic Compression - See Compression, Adiabatic.
Adsorption - The process by which a desiccant with a highly porous surface attracts and removes the moisture from compressed air. The desiccant is capable of being regenerated.
Air Receiver - See Receiver.
Air Bearings - See Gas Bearings.
Aftercooler - A heat exchanger used for cooling air discharged from a compressor. Resulting condensate may be removed by a moisture separator following the aftercooler.
Ambient Temperature - the temperature of the surrounding environment; technically, the temperature of the air surrounding a power supply or cooling medium; abbreviated [ABM]
Atmospheric Pressure - The measured ambient pressure for a specific location and altitude.
Automatic Sequencer - A device which operates compressors in sequence according to a programmed schedule.
Brake Horsepower (bhp) - See Horsepower, Brake.
Capacity - The amount of air flow delivered under specific conditions, usually expressed in cubic feet per minute (cfm).
Capacity, Actual - The actual volume flow rate of air or gas compressed and delivered from a compressor running at its rated operating conditions of speed, pressures, and temperatures.
Actual capacity is generally expressed in actual cubic feet per minute (acfm) at conditions prevailing at the compressor inlet.
Capacity Gauge - A gauge that measures air flow as a percentage of capacity, used in rotary screw compressors
Check Valve - A valve which permits flow in only one direction.
Clearance - The maximum cylinder volume on the working side of the piston minus the displacement volume per stroke. Normally it is expressed as a percentage of the displacement volume.
Clearance Pocket - An auxiliary volume that may be opened to the clearance space, to increase the clearance, usually temporarily, to reduce the volumetric efficiency ofa reciprocating compressor.
Compressibility - A factor expressing the deviation of a gas from the laws of thermodynamics. (See also Supercompressibility)
Absolute Temperature - See Temperature, Absolute.
Absorption - The chemical process by which a hygroscopic desiccant, having a high affinity with water, melts and becomes a liquid by absorbing the condensed moisture.
Actual Capacity - Quantity of gas actually compressed and delivered to the discharge system at rated speed and under rated conditions. Also called Free Air Delivered (FAD).
Adiabatic Compression - See Compression, Adiabatic.
Adsorption - The process by which a desiccant with a highly porous surface attracts and removes the moisture from compressed air. The desiccant is capable of being regenerated.
Air Receiver - See Receiver.
Air Bearings - See Gas Bearings.
Aftercooler - A heat exchanger used for cooling air discharged from a compressor. Resulting condensate may be removed by a moisture separator following the aftercooler.
Ambient Temperature - the temperature of the surrounding environment; technically, the temperature of the air surrounding a power supply or cooling medium; abbreviated [ABM]
Atmospheric Pressure - The measured ambient pressure for a specific location and altitude.
Automatic Sequencer - A device which operates compressors in sequence according to a programmed schedule.
Brake Horsepower (bhp) - See Horsepower, Brake.
Capacity - The amount of air flow delivered under specific conditions, usually expressed in cubic feet per minute (cfm).
Capacity, Actual - The actual volume flow rate of air or gas compressed and delivered from a compressor running at its rated operating conditions of speed, pressures, and temperatures.
Actual capacity is generally expressed in actual cubic feet per minute (acfm) at conditions prevailing at the compressor inlet.
Capacity Gauge - A gauge that measures air flow as a percentage of capacity, used in rotary screw compressors
Check Valve - A valve which permits flow in only one direction.
Clearance - The maximum cylinder volume on the working side of the piston minus the displacement volume per stroke. Normally it is expressed as a percentage of the displacement volume.
Clearance Pocket - An auxiliary volume that may be opened to the clearance space, to increase the clearance, usually temporarily, to reduce the volumetric efficiency ofa reciprocating compressor.
Compressibility - A factor expressing the deviation of a gas from the laws of thermodynamics. (See also Supercompressibility)
Compression, Adiabatic - Compression in which no heat is transferred to or from the gas during the compression process.
Compression, Isothermal - Compression is which the temperature of the gas remains constant.
Compression, Polytropic - Compression in which the relationship between the pressure and the volume is expressed by the equation PVn is a constant.
Compression Ratio - The ratio of the absolute discharge pressure to the absolute inlet pressure.
Constant Speed Control - A system in which the compressor is run continuously and matches air supply to air demand by varying compressor load.
Critical Pressure - The limiting value of saturation pressure as the saturation temperature approaches the critical temperature.
Critical Temperature - The highest temperature at which well-defined liquid and vapor states exist. Sometimes it is defined as the highest temperature at which it is possible to liquify a gas by pressure alone.
Cubic Feet Per Minute (cfm) - Volumetric air flow rate.
cfm, free Air - cfm of air delivered to a certain point at a certain condition, converted back to ambient conditions.
Actual cfm (acfm) - Flow rate of air at a certain point at a certain condition at that point.
Inlet cfm (icfm) - Cfm flowing through the compressor inlet filter or inlet valve under rated conditions.
Standard cfm - Cut-In/Cut-Out Pressure - Respectively, the minimum and maximum discharge pressures at which the compressor will switch from unload to load operation (cut in) or from load to unload (cut out).
Cycle - The series of steps that a compressor with unloading performs; 1) fully loaded, 2) modulating (for compressors with modulating control), 3) unloaded, 4) idle.
Cycle Time - Amount of time for a compressor to complete one cycle.
For more information visit:
http://www.industrialaircompressors.biz
E-mail compressors@mcguire.biz
Call 1-888-229-9999
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