rotary screw air compressors, Dallas rotary screw air compressors, rotary screw air compressor service,

The Rotary Screw Air Compressor

The rotary screw air compressor produces an ongoing movement to generate power.For certain heavy-duty industrial operations, or a facility that needs to keep running their compressor 24/7 365 days a year, a piston compressor is considered insufficient. In order to get the pressure intensity needed for complex pneumatic and other high-powered tools, you will need to consider buying a rotary screw air compressor.

In a rotary screw compressor, air is compressed with a meshing pair of rotors. As the screws move in rotation, fluids gets sucked in, compressed and ejected. 

So, how does an oil injected rotary screw compressor work?

AIR

The outside air is sucked in by the screw element (air-end) through the air inlet filter. The inlet filter makes sure that all the dust and dirt stays outside.

Load and unload control

Before the air enters the screw element, it passed the inlet valve or unloader valve. This valve opens and closes the air supply to the screw element.

When it’s open, the compressor is in ‘loaded’ condition:
When the valve is closed, is shuts off the air supply to the compressor element: the motor and screw element are turning, but the compressor is not sucking any air in and is not pumping any air to the system.

H&K PUMP

WHAT DOES THE screw compressor element DO?

When the inlet/unloader valve is open, the air enters the compressor screw element.
The screw element works like a pump and it compressed the air. During this process, oil is injected in the element. The oil is there to cool the air, as the air gets very hot during compression. 

Compressed air/oil mixture

This mixture leaves the screw element through a one-way valve. This valve makes sure that the oil cannot flow back into the compressor element through the exit pipe.

WHAT IS THE PURPOSE OF THE OIL SEPARATOR?

It's job is to basically separate the oil and the air through the separator tank. Most of the oil is separated from the compressed air by centrifugal force . The remaining oil is separated by the separator element which looks exactly like a big filter.


The air with oil flows through the separator element and separates the oil from the compressed air. The separated oil is collected at the bottom of the separator and is removed by the scavenge line. It sucks the collected oil back to the compressor element.

WHAT IS THE MINIMUM PRESSURE VALVE?

The minimum pressure valve is a spring-loaded valve that opens at a certain pressure, about 2.5 bar. The minimum pressure valve makes sure that there is always a minimum pressure inside the compressor

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The after cooler

The compressed air is still very hot, consequently the compressed air is now cooled by the after cooler before it leaves the compressor. The air temperature after the cooler is around 25 – 40 degrees Celsius.
Because of the cooling down of the air, a lot of water vapor has condensed against the inside of the after cooler. This water is carried with the compressed air towards the air outlet of the compressor.

Moisture trap

The condenstate trap (moisture trap) basically separates the water from the compressed air. The water is drained through a small hose.

Oil flow

The oil is cooled by the oil cooler. The amount of cooling is controlled by a thermostatic valve. If the oil is still cold, the oil cooler is completely by-passed. If the oil is very hot, all the oil is led through the oil cooler. 

The Oil filter

Finally, the oil flows through the oil filter. The oil filters removes all the dirt and dust that has collected in the oil.

CURTIS AIR COMPRESSORS, FS CURTIS

FSCURTIS AIR COMPRESSORS

CURTIS-TOLEDO

214-428-2868

CA Series	FCA05E50H8S-A9L1XX	CA5 HORZ 80G 3/60/200V 175PSI STD
CA Series	FCA05E57H3X-A3L1XX	CA5+ HORZ 30G 3/60/230V 175PSI SPEC
CA Series	FCA05E57V8S-A4L1XX	CA5+ VERT 80G 3/60/460V 175PSI STD
CA Series	FCA05E57V8S-A9L1XX	CA5+ VERT 80G 3/60/200V 175PSI STD
CA Series	FCA05E57V8U-A2L1XX	CA5+ VERT 80G 1/60/230V 175PSI ULTRA
CA Series	FCA05E57V8U-A4L1XX	CA5+ VERT 80G 3/60/460V 175PSI ULTRA
CA Series	FCA05E57V8X-A2L1XX	CA5+ VERT 80G 1/60/230V 175PSI SPEC
CA Series	FCA07E57D1U-A4L1XX	CA7.5 DUPL 120G 3/60/460V 175PSI ULTRA
CA Series	FCA07E57H1S-A3L1XX	CA7.5 HORZ 120G 3/60/230V 175PSI STD
CA Series	FCA07E57V8S-A2L1XX	CA7.5 VERT 80G 1/60/230V 175PSI STD
CA Series	FCA07E57V8S-A3L1XX	CA7.5 VERT 80G 3/60/230V 175PSI STD
CA Series	FCA07E57V8S-A4L1XX	CA7.5 VERT 80G 3/60/460V 175PSI STD
CA Series	FCA07E57V8S-A9L1XX	CA7.5 VERT 80G 3/60/200V 175PSI STD
CA Series	FCA07E57V8U-A4L1XX	CA7.5 VERT 80G 3/60/460V 175PSI ULTRA
CA Series	FCA07E57V8U-A9L1XX	CA7.5 VERT 80G 3/60/200V 175PSI ULTRA
CA Series	FCA07E57V8X-A2L1XX	CA7.5 VERT 80G 1/60/230V 175PSI SPEC
CA Series	FCA10E71D1U-A3L1XX	CA10 DUPL 120G 3/60/230V 175PSI ULTRA
CA Series	FCA10E71H1S-A3L1XX	CA10 HORZ 120G 3/60/230V 175PSI STD
CA Series	FCA10E71H1S-A4L1XX	CA10 HORZ 120G 3/60/460V 175PSI STD
CA Series	FCA10E71H1U-D3L1XX	CA10 HORZ 120G 3/60/230V 175PSI ULTRA
CA Series	FCA10E71H1U-D9L1XX	CA10 HORZ 120G 3/60/200V 175PSI ULTRA
CA Series	FCA10E71H1X-A3L1XX	CA10 HORZ 120G 3/60/230V 175PSI SPEC
CA Series	FCA10E71V1U-D3L1XX	CA10 VERT 120G 3/60/230V 175PSI ULTRA
CA Series	FCA10E71V1U-D9L1XX	CA10 VERT 120G 3/60/200V 175PSI ULTRA
CA Series	FCA15E15H1S-A3L1XX	CA15 HORZ 120G 3/60/230V 175PSI STD
CA Series	FCA15E15H1U-D3L1XX	CA15 HORZ 120G 3/60/230V 175PSI ULTRA
CA Series	FCA15E15H1U-D4L1XX	CA15 HORZ 120G 3/60/460V 175PSI ULTRA
CA Series	FCAKDE57B1X-AXL1XX	CA14 HORZ 1G BASE MOUNT 175PSI STD
CA Series	FCAKDE57H3X-AXL1XX	CA14 HORZ 30G 175PSI SPEC
CT Series	FCT02C36H4X-A1J1XX	CTS2 HORZ 4G 1/60/115V 125PSI STD
CT Series	FCT02C48H2X-A1X1XX	CTS2 HORZ 20G 1/60/115V 135PSI STD
CT Series	FCT02C48H9X-A1X1XX	CTS2 HORZ 9G 1/60/115V 135PSI STD
CT Series	FCT02C48V3X-A1X1XX	CTS2 VERT 30G 1/60/115V 135PSI STD
CT Series	FCT03C47V6X-A2X1XX	CTS3 VERT 60G 1/60/230V 135PSI STD
CT Series	FCT05C30V6X-A2X1XX	CTS5 VERT 60G 1/60/230V 135PSI STD
CT Series	FCT05C55H8S-A2L1XX	CT5 HORZ 80G 1/60/230V 175PSI STD
CT Series	FCT05C55V6X-A2L1XX	CT5 VERT 60G 1/60/230V 175PSI STD
CT Series	FCT05C55V8S-A9L1XX	CT5 VERT 80G 3/60/200V 175PSI STD
CT Series	FCT07C55V8S-A2L1XX	CT7.5 VERT 80G 1/60/230V 175PSI STD
CT Series	FCT07C75H8S-A2L1XX	CT7.5 HORZ 80G 1/60/230V 175PSI STD
CT Series	FCT07C75V8S-A3L1XX	CT7.5 VERT 80G 3/60/230V 175PSI STD
CT Series	FCT10C75H1S-A3L1XX	CT10 HORZ 120G 3/60/230V 175PSI STD
CT Series	FCTHEC47H9X-AXX1XX	CTS5 HORZ 9G 135PSI STD
CT Series	FCTKDC75H3X-AXL1XX	CT14 HORZ 30G 175PSI SPEC
CT Series	FCTKDC75H6X-AXL1XX	CT14 HORZ 60G 175PSI SPEC
ML Series	FML05D96H8S-A4L1XX	ML5 HORZ 80G 3/60/460V 175PSI STD
ML Series	FML05D96H8U-A2L1XX	ML5 HORZ 80G 1/60/230V 175PSI ULTRA
ML Series	FML05D96V8U-A4L1XX	ML5 VERT 80G 3/60/460V 175PSI ULTRA
ML Series	FML07C79V8U-A2L1XX	ML7.5 VERT 80G 1/60/230V 175PSI ULTRA
ML Series	FML10D97H1U-D3L1XX	ML10 HORZ 120G 3/60/230V 175PSI ULTRA
ML Series	FML15C89D2U-A4L1XX	ML15+ DUPL 200G 3/60/460V 175PSI ULTRA
ML Series	FML15C89H1U-D4L1XX	ML15+ HORZ 120G 3/60/460V 175PSI ULTRA
ML Series	FML15D97BXS-A3L1XX	ML15 BASE 3/60/230V 175PSI STD
ML Series	FML15D97H1S-A4L1XX	ML15 HORZ 120G 3/60/460V 175PSI STD
ML Series	FML25C98BXS-A4L1XX	ML25 BASE 3/60/460V 175PSI STD
ML Series	FML25C98M1U-D4L1XX	ML25 VERT 120G 3/60/460V 175PSI ULTRA
ML Series	FMLC98	COMPRESSOR PUMP C98A APU CSCD
CC Series	FCC01E23D6S-A4F1XX	CC1 DUPL 60G 3/60/460V 80PSI STD
CC Series	FCC01E23H3X-A1F1XX	CC1.5 HORZ 30G 1/60/115V 80PSI STD
CC Series	FCC02S30H6S-A8F1XX	CC2 HORZ 60G 3/60/575V 80PSI STD
CC Series	FCC03S50D8S-A4F1XX	CC3 DUPL 80G 3/60/460V 80PSI STD
CC Series	FCC03S50D8S-A9F1XX	CC3 DUPL 80G 3/60/200V 80PSI STD
CC Series	FCC05S50D1S-A4F1XX	CC5 DUPL 120G 3/60/460V 80PSI STD
CC Series	FCC05S50H8S-A3F1XX	CC5 HORZ 80G 3/60/230V 80PSI STD
CC Series	FCC11E23H3S-A1F1XX	CC1.5 HORZ 30G 1/60/115V 80PSI STD
CC Series	FCC34S06H3S-A2F1XX	CC0.75 HORZ 30G 1/60/230V 80PSI STD
RS Series	FRB30FUXXA4J1XXXX	RSB30 3/60/460V 125PSI BASE OPEN STD
NX Series	FNB04A6X3HXXX	NxB04 3/60/230V 100PSI 60G STD ICB
NX Series	FNB11B8U3JXPC	NxB11 3/60/230V 125PSI 80G ULTRA ICP
NX Series	FNB11B8U3JXXX	NxB11 3/60/230V 125PSI 80G ULTRA ICB
NX Series	FNB11BXX4JXXX	NxB11 3/60/460V 125PSI BASE STD ICB
NX Series	FND160HXX4JXPC	NxD160 3/60/460V 125PSI AIR STD ICP
NX Series	FND185HXX4JXPC	NxD185 3/60/460V 125PSI AIR STD ICP
NX Series	FND90FXX4JXPC	NxD90 3/60/460V 125PSI AIR STD ICP
NX Series	FNV08BXX4JXPC	NxV08 3/60/460V 125PSI BASE STD ICP
NX Series	FNV08BXX4JXPC-RC	NxV08 3/60/460V 125PSI BASE STD ICP REC
NX Series	FNV11B8U4JXPC	NxV11 3/60/460V 125PSI 80G ULTRA ICP
NX Series	FNV11BXX4JXPC	NxV11 3/60/460V 125PSI BASE STD ICP
NX Series	FNV11BXX4KXPC	NxV11 3/60/460V 150PSI BASE STD ICP
NX Series	FNV15BXX4JXPC	NxV15 3/60/460V 125PSI BASE STD ICP
NX Series	FNV22CXX4JXPC	NxV22 3/60/460V 125PSI BASE STD ICP
SEG Series	FSG05ABX8JXXX	SEG05 3/60/575V 125PSI BASE STD
SEG Series	FSG05ABX9JXXX	SEG05 3/60/200V 125PSI BASE STD
SEG Series	FSG07A8X8JXXX	SEG07 3/60/575V 125PSI 80G STD
SEG Series	FSG07A8X9JXXX	SEG07 3/60/200V 125PSI 80G STD
SEG Series	FSG07ABX8JXRC	SEG07 3/60/575V 125PSI BASE SPEC
SEG Series	FSG07ABX9JXXX	SEG07 3/60/200V 125PSI BASE STD
GS Series	FGV25CBX4JXXX	GSV25 3/60/460V 125PSI BASE STD
Dryers & Filters	F640221	DA SERIES 20CFM TWN CANST TMR .16 ORIF.
Dryers & Filters	F640222	DA SERIES 20 CFM CANST W/O TMR .16 ORIF.
Dryers & Filters	F640223	DA SERIES 20CFM TWN CANST PNEUMATIC CTR
Dryers & Filters	F640231	DA SERIES 30 CFM TWN CANST TMR .24 ORIF.
Dryers & Filters	F640241	DA SERIES  40CFM TWN CANST TMR .30 ORIF.
Dryers & Filters	F640242	DA SERIES 40CFM TWN CNSTR W/O TMR .30 OR
Dryers & Filters	FCF1-12-4	FILTER OIL VAPOR REMOVAL 20CFM
Dryers & Filters	FCF11-24-8-DL	SEPARATOR IMPACTION TYPE 100CFM
Dryers & Filters	FCF11-32-8-L	MOISTURE SEPARATOR 250 SCFM
Dryers & Filters	FCF11-36-8-L	SEPARATOR IMPACT TYPE   375 CFM  1" NPT
Dryers & Filters	FCF3-16-4-DPL	FILTER MAX EFF OIL REMOVAL 35CFM
Dryers & Filters	FCF3-24-6-DGL	FILTER MAX EFF OIL REMOVAL 100CFM
Dryers & Filters	FCF5-12-3-DPL	FILTER HI EFF OIL REMOVAL 20CFM
Dryers & Filters	FCF5-12-4-DPL	FILTER HI EFF OIL REMOVAL 20CFM
Dryers & Filters	FCF5-16-4-DPL	FILTER HI EFF OIL REMOVAL 35CFM
Dryers & Filters	FCF5-24-6-DGL	FILTER HI EFF OIL REMOVAL 100CFM
Dryers & Filters	FCF5-28-6-DGL	FILTER HI EFF OIL REMOVAL 170CFM
Dryers & Filters	FCF5-28-8-DGL	FILTER HI EFF OIL REMOVAL 170CFM
Dryers & Filters	FCF5-44-20-DG	FILTER HI EFF OIL REMOVAL 625CFM
Dryers & Filters	FCF6-24-6-G	FILTER DRY DESICCANT AFTER 100CFM
Dryers & Filters	FCF6-32-12-G	FILTER DRY DESICCANT AFTER 250CFM
Dryers & Filters	FCF7-12-4-DPL	FILTER AIR LINE 20CFM
Dryers & Filters	FCF7-16-4-DPL	FILTER AIR LINE 35CFM
Dryers & Filters	FCF7-20-4-DPL	FILTER AIR LINE 60CFM
Dryers & Filters	FCF7-24-6-DGL	FILTER AIR LINE 100CFM
Dryers & Filters	FCF7-28-6-DGL	FILTER AIR LINE 170CFM
Dryers & Filters	FCF7-28-8-DGL	FILTER AIR LINE 170CFM
Dryers & Filters	FCF7-32-12-DGL	FILTER AIR LINE 250CFM
Dryers & Filters	FCF7-36-12-DGL	FILTER AIR LINE 375CFM
Dryers & Filters	FCF7-44-20-DG	FILTER AIR LINE 625CFM
Dryers & Filters	FCF7-48-20-DG	FILTER AIR LINE 780CFM
Dryers & Filters	FCF9-16-4-DPL	FILTER AIR LINE 35CFM
Dryers & Filters	FCF9-20-4-DPL	FILTER AIR LINE 60CFM
Dryers & Filters	FCF9-24-6-DGL	FILTER AIR LINE 100CFM
Dryers & Filters	FCF9-24-8-DGL	FILTER AIR LINE 100CFM
Dryers & Filters	FCF9-40-16-G	FILTER AIR LINE 485CFM
Dryers & Filters	FRNE00125-0AXXXX	DRYER REFR. NONCYCLING 1/60/115V
Dryers & Filters	FRNH00020-0AXXXX	DRYER HIGH TEMP. 1/60/115V
Dryers & Filters	FRNH00025-0AXXXX	DRYER HIGH TEMP. 1/60/115V
Dryers & Filters	FRNH00035-0AXXXX	DRYER HIGH TEMP. 1/60/115V
Dryers & Filters	FRNH00050-0AXXXX	DRYER HIGH TEMP. 1/60/115V
Dryers & Filters	FRNH00050-5AXXXX	DRYER HIGH TEMP. 1/50/220V
Dryers & Filters	FRNH00100-0AXXXX	DRYER HIGH TEMP. 1/60/230V
Dryers & Filters	FRNH00125-0AXXXX	DRYER HIGH TEMP. 1/60/230V
Dryers & Filters	FRNP00010-0AXXXX	DRYER REFR. NONCYCLING 1/60/115V
Dryers & Filters	FRNP00025-0AXXXX	DRYER REFR. NONCYCLING 1/60/115V
Dryers & Filters	FRNP00035-0AXXXX	DRYER REFR. NONCYCLING 1/60/115V
Dryers & Filters	FRNP00050-0AXXXX	DRYER REFR. NONCYCLING 1/60/115V
Dryers & Filters	FRNP00100-0AXXXX	DRYER REFR. NONCYCLING 1/60/115V
Dryers & Filters	FRNP00150-0AXXXX	DRYER REFR. NONCYCLING 1/60/115V
Dryers & Filters	FRNP00200-3AXXXX	DRYER REFR. NONCYCLING 3/60/460V
Dryers & Filters	FRNP00250-3AXXXX	DRYER REFR. NONCYCLING 3/60/460V
Hose Machines	FHM9W32BG	HOSE MACH #9 3HP 1/60/230V WAVY BLADE
Hose Machines	FHM9W33BX	HOSE MACHI #9 3PH 3/60/230V WAVY BLADE
ES	FES04AXX3QXXX	ES04 3/60/230V 116PSI BASE STD
ES	FES08BXX3QXXX	ES08 3/60/230V 116PSI BASE STD
ES	FES15CXX3QXXX	ES15 3/60/230V 116PSI BASE STD

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