China Custom 2023 Hot Sale Variable Frequency Screw Air Compressor with ABB Converter air compressor lowes

Product Description

Variable Speed Drive Rotary Screw Air Compressor Advantages

DENAIR VSD (Variable Speed Drive) rotary screw air compressors are suitable for customers who need different amount of air supply and extremely accurate pressure. It can facilitate customers to optimize production process and improve productivity.
 
The principle of VSD is to adjust the motor rotation speed automatically according to the actual air demand. The reduced system pressure decreases the total energy consumption of the whole system, which can reduce energy costs by 35% or more.
 
The VSD air compressor reduces the energy consumption through the following points:

1. Removing the low efficiency transformation process from the full loading to unloading
2. Avoiding the power during the unloading process
3. Keeping the pipeline pressure drop under 0.1bar
4. Reducing the average working pressure
5. Lowering the system pressure to reduce the system leakage
6. The soft starting method increases the current balance and avoids the current surge
7. A flexible choice from 4 to 13bar which reduces the power consumption most.

Technical Parameters Of Variable Speed Drive Screw Air Compressor

Model Maxinmum
working
pressure
Capacity(FAD) Installed
motor
power
Driving mode& Cooling method Dimensions
(mm)
Weight Noise level** Air outlet pipe diameter
50Hz 60Hz
bar(e) psig Min. Max. Min. Max. Min. Max. Min. Max. kw hp L W H kg dB(A)
m3/min cfm m3/min cfm
DVA-5 7.5 109 0.43 0.85 15 30 0.44 0.87 16 31 5.5 7.5 Belt Driven 900 660 960 200 62 G3/4″
8.5 123 0.41 0.85 14 29 0.42 0.84 15 30 5.5 7.5
DVA-7 7.5 109 0.52 1.04 18 37 0.51 1.02 19 36 7.5 10 900 660 960 220 62 G3/4″
8.5 123 0.49 0.98 17 34 0.5 1 18 35 7.5 10
10.5 152 0.45 0.89 16 32 0.45 0.89 16 32 7.5 10
13 189 0.36 0.72 13 25 0.37 0.74 13 26 7.5 10
DVA-11 7.5 109 0.88 1.76 32 62 0.88 1.76 31 62 11 15 900 660 960 280 62 G3/4″
8.5 123 0.87 1.73 31 61 0.85 1.7 30 60 11 15
10.5 152 0.69 1.37 24 48 0.68 1.37 24 48 11 15
13 189 0.56 1.12 20 40 0.56 1.12 20 40 11 15
DVA-15 7.5 109 1.27 2.53 45 89 1.21 2.43 43 86 15 20 Direct Driven
Air
Cooling
1330 840 1030 325 64 G1-1/4″
8.5 123 1.24 2.48 44 88 1.19 2.38 42 84 15 20
10.5 152 1.02 2.03 36 72 1.17 2.34 41 83 15 20
13 189 0.99 1.98 35 70 1.14 2.27 40 80 15 20
DVA-18 7.5 109 1.5 3 53 106 1.82 3.63 64 128 18.5 25 1330 840 1030 400 64 G1-1/4″
8.5 123 1.47 2.94 52 104 1.77 3.54 63 125 18.5 25
10.5 152 1.45 2.9 51 102 1019 2.37 42 84 18.5 25
13 189 1.01 2.02 36 71 1.17 2.34 41 83 18.5 25
DVA-22 7.5 109 1.85 3.7 65 131 1.85 3.7 65 131 22 30 1330 840 1030 440 66 G1-1/4″
8.5 123 1.81 3.61 64 127 1.81 3.61 64 128 22 30
10.5 152 1.77 3.54 62 125 1.76 3.52 62 124 22 30
13 189 1.45 2.9 51 102 1.19 2.38 42 84 22 30
DVA-30 7.5 109 2.62 5.24 93 185 2.21 4.41 78 156 30 40 1600 1000 1400 670 66 G11/2″
8.5 123 2.57 5.14 91 181 2.15 4.31 76 152 30 40
10.5 152 2.56 5.11 90 180 1.82 3.64 64 129 30 40
13 189 1.72 3.43 61 121 1.77 3.54 63 125 30 40
DVA-37 7.5 109 3.25 6.5 115 230 3.86 7.73 136 273 37 50 1600 1000 1400 710 66 G11/2″
8.5 123 3.24 6.47 114 228 3.81 7.63 135 269 37 50
10.5 152 3.16 6.32 112 223 3.2 6.39 113 226 37 50
13 189 2.55 5.1 90 180 3.14 6.28 111 222 37 50
DVA-45 7.5 109 3.83 7.65 135 270 3.94 7.88 139 278 45 60 1600 1000 1400 860 69 G11/2″
8.5 123 3.8 7.6 134 268 3.85 7.7 136 272 45 60
10.5 152 3.28 6.57 116 232 3.59 7.18 127 254 45 60
13 189 3.2 6.39 113 226 3.17 6.34 112 224 45 60
DVA-55 7.5 109 4.9 9.8 173 346 4.6 9.2 162 325 55 75 1800 1200 1400 1350 69 G2″
8.5 123 4.86 9.71 171 343 4.53 9.06 160 320 55 75
10.5 152 4.62 9.24 163 326 3.9 7.8 138 275 55 75
13 189 3.68 7.35 130 260 3.8 7.59 134 268 55 75
DVA-75 7.5 109 6.96 13.91 246 491 6.27 12.53 221 442 75 100 1800 1200 1400 1450 69 G2″
8.5 123 6.33 12.66 224 447 5.86 11.71 207 413 75 100
10.5 152 4.76 9.51 168 336 5.13 10.26 181 362 75 100
13 189 4.62 9.24 163 326 4.71 9.42 166 333 75 100
DVA-90 7.5 109 8.45 16.9 298 597 8.45 16.91 298 597 90 120 2450 1800 1700 2100 72 DN80
8.5 123 8.35 16.7 295 590 8.4 16.8 297 593 90 120
10.5 152 7.25 14.5 256 512 7.38 14.76 261 521 90 120
13 189 6.25 12.5 221 441 5.71 11.42 202 403 90 120
DVA-110 7.5 109 10.4 20.8 367 734 10.03 20.06 354 708 110 150 2450 1800 1700 2500 75 DN80
8.5 123 10 20 353 706 9.99 19.98 353 706 110 150
10.5 152 8.75 17.5 309 618 8.4 16.8 297 593 110 150
13 189 7.25 14.5 256 512 7.33 14.67 259 518 110 150
DVA-132 7.5 109 11.75 23.5 415 830 12.22 24.43 431 863 132 175 2450 1800 1700 2600 75 DN80
8.5 123 11.6 23.2 410 819 11.92 23.83 421 842 132 175
10.5 152 9.92 19.83 350 700 9.9 19.79 349 699 132 175
13 189 8.23 16.46 291 581 8.32 16.64 294 588 132 175
DVA-160 7.5 109 14 28 494 989 14 27.99 494 988 160 215 2650 1700 1760 3150 75 DN80
8.5 123 13.5 27 477 953 13.66 27.32 482 965 160 215
10.5 152 12 24 424 847 12.02 24.03 424 849 160 215
13 189 10 20 353 706 9.88 19.75 349 697 160 215
DVA-185(W) 7.5 109 15.1 30.2 533 1066 15.23 30.45 538 1075 185 250 Direct
Driven
Air
Cooling
W-Water
Cooling
2650 1700 1760 3550 75 DN80
8.5 123 15.07 30.14 532 1064 15.03 30.06 531 1061 185 250
10.5 152 13.12 26.24 463 927 13.77 27.54 486 972 185 250
13 189 11.54 23.08 407 815 11.88 23.75 419 839 185 250
DVA-200(W) 7.5 109 17.5 35 618 1236 15.52 31.03 548 1096 200 270 3000 1950 2050 4200 78 DN100
8.5 123 17 34 600 1201 15.17 30.35 536 1071 200 270
10.5 152 15 30 530 1059 14.85 29.69 524 1048 200 270
13 189 13 26 459 918 13.49 26.97 476 952 200 270
DVA-220(W) 7.5 109 18.25 36.5 644 1289 18.84 37.68 665 1331 220 300 3000 1950 2050 4300 78 DN100
8.5 123 18 36 636 1271 16.62 33.24 587 1174 220 300
10.5 152 15.82 31.63 558 1117 16.58 33.16 585 1171 220 300
13 189 14.28 28.55 504 1008 13.49 26.97 476 952 220 300
DVA-250(W) 7.5 109 22.65 45.3 800 1600 21.49 42.99 759 1518 250 350 3000 1950 2050 4400 78 DN100
8.5 123 21.5 43 759 1518 21.08 42.17 744 1489 250 350
10.5 152 18.5 37 653 1306 16.75 33.5 591 1183 250 350
13 189 16.25 32.5 574 1148 16.37 32.74 578 1156 250 350
DVA-280(W) 7.5 109 23.24 46.47 820 1641 23.58 47.16 833 1665 280 375 3700 2300 2450 4900 78 DN125
8.5 123 22.77 45.53 804 1608 22.82 45.64 806 1612 280 375
10.5 152 20.45 40.89 722 1444 20.54 41.03 724 1449 280 375
13 189 17.91 35.81 632 1264 18.38 36.75 649 1298 280 375
DVA-315(W) 7.5 109 26.52 53.03 936 1872 25.44 50.88 898 1797 315 425 3700 2300 2450 7000 80 DN125
8.5 123 26.25 52.5 927 1854 24.26 48.52 857 1713 315 425
10.5 152 23.35 46.69 824 1649 22.75 45.51 803 1607 315 425
13 189 21.41 42.82 756 1512 20.43 40.86 721 1443 315 425
DVA-355(W) 7.5 109 31.61 63.21 1116 2232 27.29 54.57 963 1927 355 475 3700 2300 2450 7500 80 DN125
8.5 123 30.9 61.8 1091 2182 26.78 53.55 945 1891 355 475
10.5 152 25.75 51.5 909 1818 23.56 47.12 832 1663 355 475
13 189 22.83 45.65 806 1612 21.82 43.64 770 1540 355 475
DVA-400(W) 7.5 109 34.39 68.78 1214 2429 35.39 70.77 1249 2499 400 550 3700 2300 2450 8800 80 DN125
8.5 123 33.48 66.95 1182 2364 35.51 69.01 1218 2437 400 550
10.5 152 26.25 52.5 927 1854 24.02 48.04 848 1696 400 550
13 189 23.27 46.54 822 1643 22.24 44.49 785 1571 400 550

*)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

DENAIR Factory:

ZheJiang Denair(group)CO,.Ltd. is a Sino-German joint venture enterprise group integrating R&D,manufacturing and marketing.The company brought in advanced compressor R&D and manufacturing and marketing.The company brought in advanced compressor R&D and manufacturing technology of Germany CHINAMFG Group to make product development and large-scale production,including piston air compressors,double screw air compressors,Portable Air compressor,High and Medium Pressure Air Compressors, oil free air compressor and compressed air treatment equipment.

DENAIR International Trading Team

We carefully selected for you the classic case

DENAIR 250hp Screw Air Compressor in Thailand

Project Name: Spraying and sandblasting in Chonburi, Thailand

Product Name: 185KW 250HP screw air compressor with air dryer, air receiver tank and air filters.

Model No. & Qty: DA-185 x 2.

Working Time: From September, 2016 till now.

Event: In September, 2015, DENAIR VIP customer in Thailand finished the installation of 2 units of 250hp screw air compressor in their factory. This is the second project supported by DENAIR for them since we supplied 4 units of diesel portable air compressor for them in the year of 2014. 

DENAIR Hannover Exhibitions

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. 366, YangzhuangBang Street, Pingxing Rd., Xindai Town,HangZhou, ZHangZhoug Province, 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.

Shipping Cost:

Estimated freight per unit.



To be negotiated
Lubrication Style: Lubricated
Cooling System: Air Cooling/Water Cooling
Power Source: AC Power
Customization:
Available

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air compressor

What Safety Precautions Should Be Taken When Operating Screw Compressors?

When operating screw compressors, it is important to follow specific safety precautions to ensure the well-being of personnel and prevent potential accidents. Here’s a detailed explanation:

1. Familiarize Yourself with the Equipment:

  • Before operating a screw compressor, thoroughly read and understand the manufacturer’s instructions, safety guidelines, and operating procedures. Familiarize yourself with the specific features, controls, and safety devices of the compressor.

2. Wear Appropriate Personal Protective Equipment (PPE):

  • Wear the necessary PPE, such as safety glasses, hearing protection, gloves, and appropriate clothing, when operating the compressor. PPE helps protect against potential hazards, including flying debris, noise, and contact with hot or moving parts.

3. Ensure Proper Ventilation:

  • Operate the screw compressor in a well-ventilated area to prevent the buildup of potentially harmful gases or fumes. Ensure that the compressor’s intake and exhaust vents are not obstructed, allowing for adequate airflow.

4. Compressor Location:

  • Position the compressor on a stable and level surface to prevent tipping or instability during operation. Ensure that the compressor is located away from flammable materials, heat sources, or sources of ignition.

5. Electrical Safety:

  • Follow electrical safety guidelines and ensure that the compressor is properly grounded. Avoid using damaged or frayed electrical cords and ensure that the electrical connections are secure.

6. Lockout/Tagout Procedures:

  • Before performing any maintenance or repair tasks on the compressor, follow lockout/tagout procedures to isolate electrical power and prevent accidental startup. Lockout/tagout procedures help protect against unexpected energization of the compressor or its components.

7. Pressure Relief:

  • Before performing any maintenance tasks or opening the compressor, ensure that all pressure has been relieved from the system. Follow proper procedures for depressurizing the compressor and associated piping to avoid sudden releases of pressure.

8. Hot Surfaces:

  • Be cautious of hot surfaces, such as compressor casings, piping, or discharge components. Allow sufficient cooling time before touching or performing maintenance tasks on hot surfaces to avoid burns.

9. Maintenance and Inspection:

  • Adhere to the manufacturer’s recommended maintenance schedule and perform regular inspections of the compressor. Replace any worn or damaged components promptly to prevent potential hazards or malfunctions.

10. Emergency Procedures:

  • Be familiar with emergency procedures, including how to shut down the compressor in case of an emergency, how to respond to leaks or spills, and how to handle fire or electrical incidents. Have emergency contact information readily available.

11. Training and Qualified Personnel:

  • Ensure that operators and maintenance personnel are adequately trained in the safe operation and maintenance of screw compressors. Only allow qualified personnel to perform maintenance or repair tasks.

It is essential to consult the specific safety guidelines provided by the manufacturer of the screw compressor as they may include additional precautions or recommendations.

In summary, when operating screw compressors, it is important to familiarize yourself with the equipment, wear appropriate PPE, ensure proper ventilation, follow electrical safety measures, implement lockout/tagout procedures, be cautious of hot surfaces, perform regular maintenance and inspections, and be prepared with emergency procedures. By following these safety precautions, the risk of accidents or injuries can be minimized, ensuring a safe working environment when operating screw compressors.

air compressor

How Do You Troubleshoot Common Issues with Screw Compressors?

Troubleshooting common issues with screw compressors involves a systematic approach to identify and resolve problems that may arise during operation. Here’s a detailed explanation:

1. Gather Information:

  • Start by gathering information about the symptoms and any recent changes or events related to the compressor. This can help pinpoint potential causes and guide the troubleshooting process.

2. Check Power and Controls:

  • Ensure that the compressor has a power supply and that all electrical connections are secure. Check for any tripped breakers or blown fuses. Verify that the compressor’s controls, such as pressure switches, temperature sensors, and safety devices, are functioning correctly.

3. Inspect for Leaks:

  • Check for any visible leaks in the compressed air system, including connections, fittings, hoses, and seals. Leaks can cause a drop in system pressure and affect the compressor’s performance. Repair or replace any damaged components.

4. Monitor Pressure and Temperature:

  • Monitor the discharge pressure and temperature of the compressor. Abnormal readings can indicate issues such as inadequate lubrication, high discharge temperatures, or problems with the cooling system. Refer to the manufacturer’s specifications for acceptable pressure and temperature ranges.

5. Verify Lubrication:

  • Ensure that the compressor’s lubrication system is functioning correctly. Check oil levels and the condition of the lubricant. Inadequate lubrication can lead to increased friction, overheating, and damage to internal components. Follow the manufacturer’s recommendations for lubricant type and change intervals.

6. Check Air Filters and Cooling System:

  • Inspect and clean or replace the air filters to ensure proper airflow. Clogged filters can reduce efficiency and increase the compressor’s operating temperature. Additionally, check the cooling system, including fans and heat exchangers, to ensure they are clean and functioning correctly.

7. Examine Vibration and Noise:

  • Pay attention to any unusual vibration or noise coming from the compressor. Excessive vibration may indicate misalignment, worn bearings, or loose components. Unusual noise can be a sign of mechanical issues or problems with the intake or discharge system.

8. Review Maintenance Records:

  • Review the compressor’s maintenance records to ensure that regular maintenance tasks, such as oil changes, filter replacements, and inspections, have been performed according to the manufacturer’s recommendations. Address any overdue or missed maintenance tasks.

9. Consult Manufacturer Documentation:

  • Refer to the compressor’s operating manual and troubleshooting guide provided by the manufacturer. These documents often contain specific troubleshooting steps for common issues and can provide valuable insights.

10. Seek Professional Assistance:

  • If the troubleshooting steps do not resolve the issue or if you are unsure about performing further diagnostics, it is recommended to seek assistance from a qualified technician or contact the compressor manufacturer’s technical support.

Remember to prioritize safety throughout the troubleshooting process, following appropriate lockout/tagout procedures and wearing the necessary personal protective equipment.

In summary, troubleshooting common issues with screw compressors involves checking power and controls, inspecting for leaks, monitoring pressure and temperature, verifying lubrication, checking air filters and cooling systems, examining vibration and noise, reviewing maintenance records, consulting manufacturer documentation, and seeking professional assistance when needed. By following a systematic approach, it is possible to identify and resolve common problems with screw compressors, ensuring their proper operation and performance.

air compressor

Can Screw Compressors Be Used in Industrial Applications?

Yes, screw compressors are widely used in industrial applications and are well-suited for various industrial processes. Here’s a detailed explanation:

1. Manufacturing and Assembly:

Screw compressors find extensive use in manufacturing and assembly processes. They provide a reliable source of compressed air for powering pneumatic tools, such as drills, impact wrenches, and spray guns. Compressed air is also used for operating pneumatic cylinders and valves, facilitating automation and control in industrial production lines.

2. Industrial Automation:

In industrial automation systems, screw compressors play a crucial role in providing compressed air for actuating control valves, operating robotic arms, and powering pneumatic actuators. The continuous and reliable supply of compressed air from screw compressors ensures the smooth operation of automated machinery and equipment.

3. HVAC Systems:

Screw compressors are commonly used in large-scale heating, ventilation, and air conditioning (HVAC) systems. They are employed in chillers, which cool water or air for air conditioning and refrigeration purposes. Screw compressors in HVAC systems offer high energy efficiency, making them cost-effective and environmentally friendly options for large commercial and industrial buildings.

4. Food and Beverage Industry:

The food and beverage industry relies on screw compressors for various applications. They are used for providing compressed air in food processing and packaging operations, such as pneumatic conveying, filling, labeling, and sealing. Screw compressors used in this industry are often of the oil-free type to ensure air purity and prevent contamination of food products.

5. Pharmaceuticals and Healthcare:

In the pharmaceutical and healthcare sectors, screw compressors are vital for critical applications. They provide clean and oil-free compressed air required for pharmaceutical manufacturing processes, including tablet coating, fermentation, lyophilization, and cleanroom operations. Screw compressors with strict air quality standards, such as oil-free and contaminant-free options, are commonly used in these industries.

6. Energy and Power Generation:

Screw compressors play a significant role in energy and power generation facilities. They are used for processes such as gas compression, pneumatic conveying of coal and biomass, and control air supply in power plants. Screw compressors in these applications are designed to handle high pressures and large volumes of gas.

7. Mining and Construction:

In mining and construction industries, screw compressors are employed for various tasks. They power pneumatic tools and equipment used in drilling, rock blasting, material handling, and construction activities. Screw compressors are valued for their reliability, continuous operation, and ability to withstand harsh operating conditions.

8. Oil and Gas Industry:

The oil and gas industry extensively uses screw compressors for gas compression and processing. Screw compressors are employed in natural gas pipelines, gas processing plants, and refineries. They handle the compression of gases, such as natural gas, hydrogen, and process gases, ensuring efficient transportation and refining operations.

These are just a few examples of the industrial applications where screw compressors are commonly used. Their high efficiency, continuous operation, compact design, and capacity flexibility make them well-suited for a wide range of industrial processes and systems.

China Custom 2023 Hot Sale Variable Frequency Screw Air Compressor with ABB Converter   air compressor lowesChina Custom 2023 Hot Sale Variable Frequency Screw Air Compressor with ABB Converter   air compressor lowes
editor by CX 2023-09-27

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