Screw Air Compressor Parts and manufacturers, Rotary screw parts

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

 

 

ROTARY SCREW MANUFACTURERS

 

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