Oil-free water Lubricated (4-5/7-10 Bar)

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Oil Free Water Lubricated Fixed Speed Rotary Screw Air Compressor

Model:DMW-G Water Lubricated Fixed Speed Series

Brand:DREAM

Working Pressure:7~10 [ bar ]

                101.5~145.0 [ psig ]

Air Capacity (FAD):3~25 [ m³/min ]

                          105.9~882.9 [ cfm ]

Power:22~132 [ KW ]

    29.9~179.5 [ hp ]

For other product parameters, we can customize for clients and please inquiry us.


Product Features

■ Stable and reliable air end, water lubricated, 100% oil-free, quality assurance.

■ IE5 motor, save your electricity cost, IP54, B-level temperature rise is suitable for harsh environments such as large dust and high temperature;

■ Coupling connection, more energy saving;

■ Multiple noise reduction design, calculated according to noise theory, with special flame retardant muffler cotton inside, to reduce the noise of the unit and provide a quieter use environment.

■ Multi-function intake valve group, start without load, motor load is small. Use high-efficiency filters to effectively filter particulates in the air;

■ Axial fan with tube-fin cooler has high wind pressure and low noise. It is exhausted upward through a specially designed air duct to prevent hot air from returning;

■ Modular design of water cooler, vertical installation, high heat exchange efficiency, stable operation and long service life;

■ Optimized shock absorption pad to reduce vibration and noise;

■ Routine maintenance parts adopt openable door panels, the installation position is easy to replace, and maintenance is more convenient.

■ Motor overload protection.

■ The pipeline system is designed according to the design pressure, and the reasonable pipeline is selected, the pipeline pressure loss is low, and the energy efficiency of the unit is improved

■ The use of 304 stainless steel pipes will not rust and corrode even under high temperature and humidity conditions, and the service life is longer

■ Separate design for cold and hot zone, no heat zone inside the unit, electrical components are in low temperature zone, longer service life

■ Dedicated control system, multi-channel pressure sensor and multi-channel temperature sensor to comprehensively detect the running state of the unit; the user interface is more friendly, the control is more accurate and reliable.

Water-lubricated screw air end

Water-lubricated screw air end

1. High-quality stainless steel casing, there is no risk of corrosion inside and outside the machine head

2. Using water as the compression seal and cooling medium, the use cost is low.

3. With advanced sealing and isolation technology, compressed air is cleaner and can be pure and oil-free.

4. The axial and radial forces of the single screw are balanced, and the star wheel rotates freely with the screw under the lubrication of the water film. Therefore, the host components run smoothly under low load, ensuring low noise and durability.

Specialized  motor for air compressor

Specialized motor for air compressor

1.Imported brand bearings, protection class IP54, insulation class F, suitable for harsh environments such as large dust and high temperature.

2. IE3 high-efficiency motor uses less electricity and reduces your cost of use.

3. The motor has a large margin design and a large starting torque, which can meet the requirements of full life use under various working conditions.

Internal rotor fan

Internal rotor fan

1. IP44 cooling fan, Class F insulation;

2. Compared with the outer rotor fan, the inner rotor fan has higher air pressure, more air volume and better cooling effect;

3. Due to high wind pressure, the cooler and filter are less likely to be blocked

Plate cooler (for water cooling)

Plate cooler (for water cooling)

1. It is made of stacked metal sheets with a certain corrugated shape. The material is corrosion-resistant, easy to clean, and has a long service life.

2. Unit volume, large heat exchange area, high heat exchange efficiency.

3. Compact structure, light weight and small footprint.

Ion exchange water softener

Ion exchange water softener

1. Fully automatic control of operation and regeneration operation process without manual operation.

2. Use ion exchange resin to reduce the hardness of raw water, to achieve the purpose of softening hard water, avoid scaling and protect the system.

3. The exchange resin is renewable and the use cost is low.

Parameter

    DMW-G
     series
working pressurecapacitypowernoiseAiroutlet
pipe
diameter
net weightdimensions(mm)
barpsig(m3/min)cfmkW   hpdBkglengthwidthheight
DMW-22G102 3.7 131 22    30 61±3G1″655 1400 1000 1200 
116 3.4 120 
10 145 3.0 106 
DMW-30G102 5.2 184 30    40 64±3G1 1/2″1150 1920 1170 1320 
116 4.7 166 
10 145 4.3 152 
DMW-37G102 6.1 215 37    50 64±3G1 1/2″1200 1920 1170 1320 
116 5.6 198 
10 145 5.0 177 
DMW-45G102 7.5 265 45    60 66±3G1 1/2″1320 1920 1170 1320 
116 6.8 240 
10 145 6.0 212 
DMW-55G102 10.0 353 55    75 66±3DN501520 1930 1320 1535 
116 9.0 318 
10 145 7.8 275 
DMW-75G102 13.0 459 75    100 70±3DN501620 1930 1320 1535 
116 12.0 424 
10 145 10.0 353 
DMW-90G102 15.5 547 90    120 70±3DN501800 1930 1320 1535 
116 14.0 494 
10 145 12.5 441 
DMW-110G102 20.0 706 110    150 72±3DN803100 2300 1600 1750 
116 18.0 636 
10 145 16.0 565 
DMW-132G102 25.0 883 132    175 72±3DN803250 2300 1600 1750 
116 23.0 812 
10 145 20.0 706 


Video

Brochure

FAQ

  • 1. Requirements for using lubricating water (after-sales service)

    A: 

    Pure water must be used to ensure that the water is pure.

  • 2. How to add lubricating water?

    A: 

    When the water inlet of the equipment is connected to the water pipe, the equipment will automatically replenish water if there is a certain water pressure.

  • 3. Do I need to change the lubricant during maintenance?

    A: 

    Water lubrication equipment does not need to add lubricating oil, it is lubricating water instead of lubricating oil

  • 4. Does the equipment have an oil separation core?

    A: 

    Water lubrication equipment does not require an oil separation core.

  • 5. How to add water to replenish water?

    A: 

    Automatically control water replenishment

  • 6. What to do if there is water shortage?

    A: 

    The equipment will automatically add lubricating water according to the water level

  • 7. What are the maintenance supplies?

    A: 

    Air filter, water filter

  • 8. Is it guaranteed to be oil-free? (Sales)

    A: 

    Dream’s oil-free units have been certified by Guotong Rheinland and have a Class0 certificate

  • 9. Can tap water be used?

    A: 

    The water requirement for water-lubricated oil-free units is soft water. For specific water quality requirements, see the manual

  • 10. Will it rust?

    A: 

    All materials in contact with water are made of stainless steel and will not rust

  • 11. Can it be made of stainless steel?

    A: 

    All materials in contact with water are stainless steel

  • 12. What material is the casing of the air compressor?

    A: 

    Cold rolled steel sheet

  • 13. Can the water tank be omitted?

    A: 

    The unit needs to automatically replenish and drain water according to the status, and need to be equipped with a water tank

  • 14. Is the air coming out with a lot of water?

    A: 

    The exhaust temperature of the unit is about 50℃, and the gas needs to be dried by post-processing equipment

  • 15. Can the tap water be directly connected?

    A: 

    The water requirement for water-lubricated oil-free units is soft water. For specific water quality requirements, see the manual

  • 16. What should I do if it freezes outdoors in winter?

    A: 

    The screw air compressor is required to be placed in the air compressor room. Please follow the instructions for long-term downtime

  • 17. If the air compressor is placed outdoors, how to avoid freezing in winter?

    A: 

    The screw air compressor is required to be placed in the air compressor room. Please follow the instructions for long-term downtime

  • 18. Motor cooling method

    A: 

    Air-cooled motor

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For more than a decade, Dream (Shanghai) Compressor Co., Ltd has been striving to become one of the leading manufacturers of compressed air solutions in China.

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E-mail: [email protected]

WhatsApp: ++86 13671551445

Add.:  Shanghai Sales Headquarters: Room 316, Building 1, Baodacheng Business Park, Songjiang District, Shanghai, China

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