Product Description


5-400 Kw Low Noise Electric Water Lubricated/Injected Oil Free Oilless Direct Coupling Rotary Screw Type Air Compressor Advantages

1.Clean air 100% oil-free
 
2.Use water instead of oil, higher cooling efficiency and compression efficiency
 
3.Optimal isothermal compression
 
4.Powerful MAM microcomputer controller and touch screen
 
5.Reasonable Structure, with perfect balancing
 
6.Components made of anti-rust and anti-corrosion materials ensure the durability
 
7.Significant energy saving, environmental-friendly and pollution-free
 
8.Designed especially for medical, pharmacy, instrument, coating, chemical industry and food processing, etc.

DENAIR Water-lubricated Oil Free Screw Air Compressor In Hannover Messe 2017 

Technical Parameters Of Water-lubricated Oil-free Screw Air Compressor

Model Maximum
 working 
pressure
Capacity
(FAD)*
Installed
 motor
 power
Noise
 Level**
Dimensions
 (mm)
Weight Air 
Outlet 
Pipe 
Diameter
50 Hz 60 Hz
bar(e) psig m3/min cfm m3/min cfm kW hp dB(A) L W H kG
DAW-15 7.5 109 2 71 1.48 52 15 20 63 1200 900 1200 650 G1″
8.5 123 1.94 69 1.46 52 15 20 63 1600 1100 1500 650 G1″
10.5 152 1.66 59 1.42 50 15 20 63 1200 900 1200 650 G1″
DAW-18 7.5 109 2.81 99 2.4 85 18.5 25 66 1600 1100 1500 800 G1″
8.5 123 2.7 95 2.33 82 18.5 25 66 1600 1100 1500 800 G1″
10.5 152 2.19 77 1.99 70 18.5 25 66 1600 1100 1500 800 G1″
DAW-22 7.5 109 3.48 123 3.37 119 22 30 66 1600 1100 1500 850 G1″
8.5 123 3.46 122 3.24 114 22 30 66 1600 1100 1500 850 G1″
10.5 152 2.73 96 2.63 93 22 30 66 1600 1100 1500 850 G1″
DAW-30 7.5 109 5.27 186 4.18 148 30 40 69 1600 1100 1500 920 G1-1/2″
8.5 123 5.15 182 4.15 147 30 40 69 1600 1100 1500 920 G1-1/2″
10.5 152 3.55 125 3.28 116 30 40 69 1600 1100 1500 920 G1-1/2″
DAW-37 7.5 109 6.5 229 6.33 223 37 50 69 1600 1100 1500 950 G1-1/2″
8.5 123 6.26 221 6.18 218 37 50 69 1600 1100 1500 950 G1-1/2″
10.5 152 5.21 184 4.26 151 37 50 69 1600 1100 1500 950 G1-1/2″
DAW-45 7.5 109 8.2 289 7.8 275 45 60 69 2200 1400 1800 1700 DN50
8.5 123 7.81 276 7.51 265 45 60 69 2200 1400 1800 1700 DN50
10.5 152 6.23 220 6.25 221 45 60 69 2200 1400 1800 1700 DN50
DAW-45W 7.5 109 8.2 289 7.8 275 45 60 66 2200 1400 1800 1500 DN50
8.5 123 7.81 276 7.51 265 45 60 66 2200 1400 1800 1500 DN50
10.5 152 6.23 220 6.25 221 45 60 66 2200 1400 1800 1500 DN50
DAW-55 7.5 109 9.32 329 7.8 347 55 75 69 2200 1400 1800 1800 DN50
8.5 123 8.86 313 7.51 331 55 75 69 2200 1400 1800 1800 DN50
10.5 152 7.78 275 6.25 264 55 75 69 2200 1400 1800 1800 DN50
DAW-55W 7.5 109 9.32 329 9.84 347 55 75 66 2200 1400 1800 1800 DN50
8.5 123 8.86 313 9.37 331 55 75 66 2200 1400 1800 1800 DN50
10.5 152 7.78 275 7.48 264 55 75 66 2200 1400 1800 1800 DN50
DAW-75 7.5 109 12.41 438 11.19 395 75 100 73 2350 1400 1800 1800 DN50
8.5 123 12.39 438 10.63 375 75 100 73 2350 1400 1800 1800 DN50
10.5 152 10.45 369 9.33 330 75 100 73 2350 1400 1800 1800 DN50
DAW-75W 7.5 109 12.41 438 11.19 395 75 100 71 2200 1400 1800 1800 DN50
8.5 123 12.39 438 10.63 375 75 100 71 2200 1400 1800 1800 DN50
10.5 152 10.45 369 9.33 330 75 100 71 2200 1400 1800 1800 DN50
DAW-90W 7.5 109 16.48 582 15.39 543 90 120 73 2400 1700 1800 1800 DN65
8.5 123 16.36 578 15.24 538 90 120 73 2400 1700 1800 1800 DN65
10.5 152 12.82 453 12.52 442 90 120 73 2400 1700 1800 1800 DN65
DAW-110W 7.5 109 20.45 722 19.78 698 110 150 73 2400 1700 1800 1800 DN65
8.5 123 19.82 100 19.63 693 110 150 73 2400 1700 1800 1800 DN65
10.5 152 15.55 549 15.35 542 110 150 73 2400 1700 1800 1800 DN65
DAW-132W 7.5 109 21.99 776 24.53 886 132 175 76 2400 1700 1800 1800 DN65
8.5 123 21.94 775 23.78 840 132 175 76 2400 1700 1800 1800 DN65
10.5 152 19.79 699 18.66 659 132 175 76 2400 1700 1800 1800 DN65

*) FAD in accordance with ISO 1217 : 2009, Annex C: Absolute intake pressure 1 bar (a), cooling and air intake temperature 20 °C
**) Noise level as per ISO 2151 and the basic standard ISO 9614-2, operation at maximum operating pressure and maximum speed; tolerance: ± 3 dB(A)

DENAIR Factory

At DENAIR, we earn our customers’ trust and satisfaction by manufacturing the superior quality compressed air products for all industries. All of our products are designed for reliable performance, easy maintenance, and maximum energy efficiency. CHINAMFG has been exporting to more than 90 countries across the globe. We have sales representatives who can speak English, Spanish, French, Russian and Arabic, which makes it easier for our clients from all over the world to interact and negotiate with us. 

DENAIR Services

DENAIR Oil Free Screw Air Compressor Application and Installation

FAQ

Q1: Are you factory or trade company?  
A1: We are factory.

Q2: What the exactly address of your factory? 
A2:  Our company is located in No. 6767, Tingfeng Rd. Xihu (West Lake) Dis.n District, ZheJiang  201502, China
And our factory is located in No.58,Hulu road, Xinbang Town, Industrial area, Xihu (West Lake) Dis. District, ZheJiang , China

Q3: Warranty terms of your machine? 
A3: Two years warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the machines? 
A4: Yes, of course.

Q5: How long will you take to arrange production? 
A5: 380V 50HZ we can delivery the goods within 10 days. Other electricity or other color we will delivery within 22 days

Q6: Can you accept OEM orders? 
A6: Yes, with professional design team, OEM orders are highly welcome.

 

Warranty: 2years
Lubrication Style: Lubricated
Cooling System: Air Cooling
Customization:
Available

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

air compressor

What Are the Safety Considerations When Using Water-Lubricated Compressors?

When using water-lubricated compressors, it is important to prioritize safety to prevent accidents, ensure the well-being of personnel, and maintain the integrity of the equipment. Here’s a detailed explanation of the safety considerations:

  1. Electrical Safety: Compressed air systems, including water-lubricated compressors, often involve electrical components and connections. Ensure that the electrical systems are properly installed, grounded, and protected according to applicable electrical codes and regulations. Regularly inspect electrical components, such as motors, switches, and wiring, for any signs of damage or wear that could pose electrical hazards.
  2. Pressure Safety: Water-lubricated compressors can operate at high pressures, presenting potential hazards. Follow the manufacturer’s guidelines and ratings to ensure that the compressor is operated within its specified pressure limits. Install and maintain pressure relief valves to prevent overpressurization and ensure the safe release of excess pressure. Regularly inspect pressure gauges, fittings, and connections for leaks, damage, or signs of degradation.
  3. Heat and Cooling Safety: Compressed air systems generate heat during the compression process, and proper cooling is essential to maintain safe operating temperatures. Ensure that cooling mechanisms, such as water jackets or external cooling systems, are functioning correctly and provide adequate cooling capacity. Monitor and control the temperature of the compressed air and the cooling water to prevent overheating and minimize the risk of equipment damage or failure.
  4. Water Quality and Treatment: The quality of the water used for lubrication is crucial for the performance and safety of water-lubricated compressors. Impurities, contaminants, or minerals in the water can lead to corrosion, blockages, or reduced lubrication effectiveness. Implement appropriate water treatment or filtration systems to maintain the desired water quality. Regularly monitor water quality and perform necessary maintenance and treatment to prevent potential safety and performance issues.
  5. Maintenance and Inspection: Establish a routine maintenance and inspection program for the water-lubricated compressor system. Regularly inspect the compressor, water distribution system, filters, and other components for any signs of wear, damage, or deterioration. Follow the manufacturer’s recommended maintenance procedures, including lubrication, filter replacement, and system checks. Promptly address any identified issues to prevent safety hazards and maintain the reliable operation of the compressor.
  6. Training and Personal Protective Equipment (PPE): Proper training of personnel who operate and maintain water-lubricated compressors is essential for safety. Ensure that operators and maintenance personnel are trained on the safe operation of the equipment, emergency procedures, and hazard identification. Provide appropriate personal protective equipment (PPE), such as safety glasses, gloves, and hearing protection, to minimize the risk of injuries from potential hazards, including high-pressure water, rotating parts, or noise.

It is important to consult applicable safety regulations, codes, and guidelines specific to your location and industry when using water-lubricated compressors. Additionally, follow the manufacturer’s instructions, warnings, and safety recommendations provided with the equipment to ensure the safe operation of water-lubricated compressors and mitigate potential risks.

air compressor

What Are the Considerations for Choosing Water-Lubricated vs. Oil-Lubricated Compressors?

When selecting between water-lubricated and oil-lubricated compressors, several considerations come into play. Here’s a detailed explanation of the key factors to consider when choosing between these two types:

Operating Environment:

  • Water Sensitivity: Water-lubricated compressors are well-suited for environments where water is readily available and can be easily supplied to the compressor system. On the other hand, oil-lubricated compressors are more suitable for applications where water is not readily available or where water contamination could pose a problem.
  • Cleanliness Requirements: If the application demands a high level of cleanliness, such as in certain manufacturing processes or cleanroom environments, water-lubricated compressors may be preferred. Water is inherently cleaner than oil and reduces the risk of oil contamination in sensitive operations.

Maintenance and Service:

  • Lubricant Replacement: Oil-lubricated compressors require regular oil changes and maintenance to ensure proper lubrication and performance. Water-lubricated compressors, on the other hand, eliminate the need for oil changes and associated maintenance tasks, simplifying the maintenance requirements.
  • Oil Contamination: Oil-lubricated compressors carry the risk of oil contamination in the compressed air system. This can be a concern in certain applications where oil contamination can negatively impact product quality or downstream equipment. Water-lubricated compressors reduce the risk of oil contamination, making them advantageous in such applications.

Environmental Impact:

  • Oil Disposal: Oil-lubricated compressors generate used oil that requires proper disposal in accordance with environmental regulations. Water-lubricated compressors eliminate the need for oil disposal, contributing to a reduced environmental impact.
  • Energy Efficiency: In terms of energy efficiency, water-lubricated compressors tend to have an advantage. Water has a higher specific heat capacity than oil, meaning it can absorb and dissipate heat more effectively. This can result in improved cooling efficiency and potentially lower energy consumption compared to oil-lubricated compressors.

Application-Specific Factors:

  • Operating Pressure: Water-lubricated compressors are generally suitable for lower to moderate operating pressures. Oil-lubricated compressors, on the other hand, can handle higher operating pressures, making them more appropriate for applications that require higher pressure levels.
  • Temperature Sensitivity: Water-lubricated compressors may have limitations in applications where low temperatures are encountered. Water freezing or becoming slushy can cause operational issues. Oil-lubricated compressors, with appropriate low-temperature oil formulations, can better handle such temperature-sensitive conditions.

Cost Considerations:

  • Initial Cost: Water-lubricated compressors generally have a lower initial cost compared to oil-lubricated compressors. This cost advantage can be attractive for applications with budget constraints.
  • Maintenance Cost: Over the long term, water-lubricated compressors may have lower maintenance costs due to the elimination of oil changes and associated maintenance tasks. However, it’s important to consider the specific maintenance requirements and costs associated with each type of compressor.

By considering these factors, including the operating environment, maintenance and service requirements, environmental impact, application-specific factors, and cost considerations, one can make an informed decision when choosing between water-lubricated and oil-lubricated compressors.

air compressor

How Is Water Quality Crucial for the Performance of These Compressors?

Water quality plays a crucial role in the performance of water-lubricated air compressors. The quality of the water used for lubrication directly impacts the efficiency, reliability, and lifespan of these compressors. Here are the key reasons why water quality is essential for optimal compressor performance:

  1. Lubrication effectiveness: Water serves as the lubricant in water-lubricated air compressors. The water forms a protective film between moving parts, reducing friction and wear. However, if the water contains impurities or contaminants, it can compromise the lubricating properties. Impurities like minerals, sediments, or dissolved solids can hinder the formation of an effective lubricating film, leading to increased friction and potential damage to the compressor components.
  2. Corrosion prevention: Water with high mineral content, such as hard water, can promote corrosion within the compressor system. Minerals like calcium and magnesium can react with metal surfaces, leading to rust, scale formation, and degradation of internal components. Corrosion compromises the structural integrity of the compressor, reduces its efficiency, and may result in costly repairs or even premature failure.
  3. Preventing blockages: Poor water quality can result in the accumulation of sediments, debris, or contaminants within the compressor system. These deposits can block water passages, filters, or valves, impeding the flow of water and affecting the overall performance of the compressor. Restricted water flow may lead to inadequate cooling, reduced lubrication, and compromised efficiency.
  4. Preventing fouling and fouling-related issues: Fouling refers to the accumulation of organic or inorganic deposits on heat transfer surfaces, such as heat exchangers or radiators, within the compressor system. Poor water quality can contribute to fouling, reducing heat transfer efficiency and impairing the cooling capacity of the compressor. This can result in elevated operating temperatures, decreased performance, and potential damage to the compressor.
  5. System cleanliness: Clean water is crucial for maintaining a clean and sanitary compressor system, especially in industries like food and beverage or medical applications. Contaminated water can introduce harmful bacteria, microorganisms, or particles into the compressor, posing a risk to product quality, safety, or patient well-being.

To ensure optimal performance and longevity of water-lubricated air compressors, it is important to monitor and maintain the quality of the water used for lubrication. Regular water analysis, proper filtration, and appropriate water treatment measures should be employed to remove impurities, control mineral content, and maintain the desired water quality. By ensuring clean and high-quality water, the compressor can operate efficiently, minimize the risk of component damage, and contribute to a reliable and safe compressed air system.

China Standard Similar to CHINAMFG Rand Oil-Free/Oil Less Screw Air Compressor   mini air compressorChina Standard Similar to CHINAMFG Rand Oil-Free/Oil Less Screw Air Compressor   mini air compressor
editor by CX 2023-10-12

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