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Water-Injected Screw Compressor

Geso Systems Advanced oil free screw compressor using water injection technology to provide clean, reliable and energy-efficient compressed air for industrial applications.

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Geso Systems water injected screw compressor is an advanced oil free rotary screw compressor that uses purified water instead of oil for cooling, sealing and lubrication inside the compression chamber. It delivers clean compressed air without oil contamination and is ideal for industries requiring high air purity.

Geso customized oll-free single screw air end

■ Symmetrical structure and return hole setting, so that the radial and axial forces generated duning the work of the single screw compressor can be balanced. the star wheel in the water film lubrication with the free rotation of the screw, so that the air end in the low load under the smooth operation, prolonging the service life.

■ The use of water as the medium for compression sealing and cooling effectively reduces the cost of use.

Electronic control system

■ Intelligent control system with good human-machine communication interface.

■ By multi-channel pressure sensors and multi-channel temperature sensors on the unit running state comprehensive detection, intelligent program control machine operation.

■ Confiquration of the Internet of Things, cell phone can be real-time view of the perating status of the unit, without the need for a person on-site supervision

Plate coolers（(water-cooled)）

■ Made of corrugated shaped metal sheets stacked together, the material is Corrosion-resistant, easy to clean and has a high service life.

■ Large heat transfer area for higher efficiency.

Ion exchange water softener

■ Fully automatic control of operation and regeneration operation, no need for workers to operate.

■ Using ion exchange resin, reduce the hardness of raw water to soften hard water, avoid scaling and protect the system.

■ The ion exchange resin is renewable, reducing the cost of use.

Water filter

■ Filter lubrication water to ensure clean lubrication water for compression sealing and cooling.

Advantages of Water Injected Screw Compressor

1. 100% Oil Free Compressed Air

The water injected screw compressor eliminates oil injection inside the compression chamber, ensuring clean compressed air for sensitive industrial applications

2. Energy Efficient Variable Frequency Drive

Equipped with VSD technology, the compressor automatically adjusts motor speed according to air demand, reducing unnecessary energy consumption

3. Lower Compression Temperature

Water injection provides efficient cooling during compression, helping maintain stable operation and improve compressor efficiency

4. Reliable Continuous Operation

Designed for long-term industrial operation with reduced maintenance requirements compared with traditional oil injected screw compressors.

How Does a Water Injected Screw Compressor Work?

Unlike conventional oil injected screw compressors, a water injected screw compressor uses purified water as the cooling, sealing and lubricating medium inside the compression chamber.

During compression, water is injected into the screw element to absorb heat and reduce leakage between rotors, while preventing oil contamination in compressed air.

Frequently Asked Questions About Water Injected Screw Compressor

Q1: What is a water injected screw compressor?

A:A water injected screw compressor is an oil-free rotary screw compressor that uses purified water instead of oil for cooling, sealing and lubrication during compression. It provides clean compressed air without oil contamination.

Q2: What is the difference between water injected and oil injected screw compressors?

A:The main difference is the medium used inside the compression chamber. Oil injected compressors use oil for cooling and sealing, while water injected compressors use water to achieve oil-free compressed air production.

Q3: Is a water injected screw compressor completely oil free?

A:Yes. The compression chamber does not require oil injection. The system uses water as the compression medium, helping ensure clean air quality for industries requiring oil-free compressed air.

Q4: What industries use water injected screw compressors?

A:Water injected screw compressors are widely used in industries requiring clean compressed air, including food and beverage, pharmaceutical, electronics, textile and other manufacturing applications.

Q5: Can GESO customize a water injected screw compressor?

A:Yes. GESO provides customized compressor solutions according to different air pressure, flow rate, voltage and installation requirements.

Model	Working Pressure （Mpa）	Air Delivery （m³/min）	Moter Power （kw）	Dimensions (LWH) mm			Weight （kg）	Lubricating water(L)	Outlet Pipe Diameter
BAEW-5APM	0.7	0.6	5.5	1000	700	1050	450	20	G3/4
	0.8	0.5
	1.0	0.4
BAEW-7APM	0.7	1.2	7.5	1000	700	1050	500	25	G3/4
	0.8	1.0
	1.0	0.8
BAEW-11APM	0.7	1.6	11	1150	850	1250	550	25	G3/4
	0.8	1.4
	1.0	1.2
BAEW-15APM	0.7	2.2	15	1300	950	1250	650	30	G1
	0.8	2.0
	1.0	1.8
BAEW-18APM	0.7	3.2	18.5	1500	1050	1400	750	35	G1
	0.8	2.8
	1.0	2.5
BAEW-22APM	0.7	3.6	22	1500	1050	1400	850	35	G1
	0.8	3.3
	1.0	2.9
BAEW-30APM	0.7	5.3	30	1750	1150	1500	1050	65	G1 1/4
	0.8	4.7
	1.0	4.3
BAEW-37APM	0.7	6.0	37	1750	1150	1500	1100	65	G1 1/4
	0.8	5.6
	1.0	5.0
BAEW-45APM	0.7	7.7	45	1750	1150	1500	1200	90	G1 1/4
	0.8	7.3
	1.0	5.8
BAEW-45WPM	0.7	7.7	45	1750	1150	1500	1050	90	G1 1/2
	0.8	7.3
	1.0	5.8
BAEW-55WPM	0.7	10.0	55	1900	1250	1350	1250	110	G2
	0.8	9.0
	1.0	7.8
BAEW-75WPM	0.7	13.0	75	1900	1250	1350	1650	110	G2
	0.8	12.0
	1.0	10.0
BAEW-90WPM	0.7	16.8	90	1900	1250	1350	2050	110	G2
	0.8	15.0
	1.0	14.0
BAEW-110WPM	0.7	20.0	110	2200	1600	1750	2600	130	DN65
	0.8	18.5
	1.0	17.0
BAEW-132WPM	0.7	25.0	132	2200	1600	1750	2700	130	DN65
	0.8	23.0
	1.0	20.0
BAEW-160WPM	0.7	27.0	160	2200	1600	1750	2900	165	DN65
	0.8	25.5
	1.0	24.0
BAEW-185WPM	0.7	30.0	185	2900	1800	1950	3300	180	DN100
	0.8	28.5
	1.0	26.0
BAEW-200WPM	0.7	32.0	200	2900	1800	1950	3500	180	DN100
	0.8	30.0
	1.0	28.0
BAEW-220WPM	0.7	36.0	220	2900	2000	2300	4500	180	DN100
	0.8	34.0
	1.0	31.0
BAEW-250WPM	0.7	40.0	250	2900	2000	2300	4700	180	DN100
	0.8	38.0
	1.0	36.0
BAEW-315WPM	0.7	50.0	315	2900	2000	2300	5000	180	DN100
	0.8	46.0
	1.0	43.0

Note: BAEW: oil-free water lubrication, A: air-cooled, W: water-cooled, PM: permanent magnet frequency converter.

The Company Has The Right To Change The Design For The Continuous Improvement Of The Products,and The Parameters Will Be Changed Without Prior Notice.