Screw Air Compressor Parts and manufacturers, Rotary screw parts and manufacturers
214-428-2868
Outside air
Air is sucked in by the screw element
(air-end) through the air inlet filter. The inlet filter makes sure that all
the dust, dirt, and other debris stays outside.
The air filter is the first line of defense for the rotary screw
compressor. If the air is not clean, all
the dirt will eventually get sucked into the compressed air system.
Load/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. (It may
look like a butterfly flap on a carborator)
When the valve is open, the compressor is
in ‘loaded’ condition: it is actually compressing air and pumping it into the
compressed air system. 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.
The screw compressor element
When the inlet/unloader valve is open, the
air enters the compressor screw element.
The screw element works like a pump. It’s job is to compress the air! During
this process, oil is injected in the element which cools the air and lubricated
the system by sealing off the clearances between the two screws.
Compressed air/oil mixture
The compresses air/ oil 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.
The oil separator: what does it do?
Most of the oil is separated from the
compressed air by centrifugal force (think of your washer and dryer; the
spinning cycle?). The remaining oil is separated by the separator element which
resembles a big air filter.
The air with oil flows through the
separator element. The element 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. Its job is to suck the
collected oil back to the compressor element.
The minimum pressure valve
The minimum pressure valve is a
spring-loaded valve that opens at a certain pressure, (around 2.5 bar). The
minimum pressure valve makes sure that there is always a minimum pressure
inside the compressor. Without the
proper pressure, the oil could not be pumped through the system.
The after cooler: what does the after
cooler do?
Hard to believe, but compressed air is
HOT!!!!! The after cooler does exactly
what the name infers. It cools the air to
around 25 – 40 degrees Celsius.
Obviously when you cool a hot liquid down,
a lot of water vapor condenses against the inside of the after cooler. This
water is carried with the compressed air towards the air outlet of the
compressor.
Moisture trap/ Moisture separator:
The moisture separator / condenstate trap
basically separates the water from the compressed air. The water is drained
through a small hose.
The compressed air is now free to leave the
compressor.
Oil flow?
Where does all the oil go?
As you can guess, the oil in the separator
is extremely hot.
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 thermostatic valve regulates the oil
temperature.
The Oil filter
The oil flows through the oil filter. All the dirt, dust and debris are removed. FYI (the oil filter has an internal by-pass
valve that opens when the oil is cold or the filter is really dirty)
ROTARY SCREW PART DESCRIPTIONS:
§ Shaft Sleeve
Kits
§ Gears
§ Belts
§ Drive Couplings
§ Shaft Sleeves
§ Housings
§ Covers
§ Rods
§ Plungers
§ Gauges
§ Pistons
§ Orifice
§ Scavenge Lines
§ Hoses
§ O-Rings
§ Gaskets
§ Fan
§ Intercooler
§ After cooler
§ Combo Cooler
§ Gas Springs
§ Tensioner
§ Timer
§ Drain Valves
§ Moisture Traps
§ Contacts
§ Contact Kits
§ Interlock
§ Transformer
§ Relay
§ Blocks
§ Water Separator
§ Fan Motor
§ Controller
§ Solenoid Switch
§ Flex Seal
§ Motherboard
§ Y-Delta Timer
Card
§ Solenoid Valves
§ Safety Valves
§ Hydraulic
Cylinder
§ Hour meter
§ V-Belt
§ Module
§ Relief Valve
ABAC
Almig
ALUP
Atlas-Copco
Bauer
Boge
Champion
Chicago Pneumatic
Compair
Curtis www.hkaircompressors.com
Dominick Hunter
Finite
Gardner-Denver
Hankinson
Hydrovane
Ingersoll-Rand Air Compressor Parts
Joy
Kaeser Air Compressor Parts
Kellogg
Leroi
Palatek
Quincy
Sullivan
Super Air Compressor
Worthington
Zeks
