China factory 25 Horsepower Oil Injected Rotary Screw Air Compressor with Dryer and VSD with Great quality

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Product Description

Electric Inverter Variable Speed 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 Screw Air Compressor 

Model Maximum 
working 
pressure
Capacity FAD* Installed 
motor 
power
Driving
Mode&
 Cooling 
Method
Dimensions
(mm)
Weight
(kg)
Noise 
level**
[dB(A)]
Air 
outlet 
pipe
diameter
bar psig m³/min cfm kw hp L W H
DVA-15 7.5 109 1.1-2.1 38.8-74.2 15 20 Direct 
Driven
Air 
Cooling
1350 800 1150 520 63 G1″
8.5 123 1-2 35.3-70.6 15 20 1350 800 1150 520 63 G1″
10.5 152 0.9-1.8 31.8-63.6 15 20 1350 800 1150 520 63 G1″
13 189 0.8-1.6 28.2-56.5 15 20 1350 800 1150 520 63 G1″
DVA-18 7.5 109 1.6-3.2 56.5-113 18.5 25 1350 800 1150 620 65 G1″
8.5 123 1.5-3 53-105.9 18.5 25 1350 800 1150 620 65 G1″
10.5 152 1.4-2.7 49.4-95.3 18.5 25 1350 800 1150 620 65 G1″
13 189 1.2-2.3 42.4-81.2 18.5 25 1350 800 1150 620 65 G1″
DVA-22 7.5 109 1.9-3.8 67.1-134.2 22 30 1350 800 1150 670 65 G1 1/4″
8.5 123 1.8-3.6 63.6-127.1 22 30 1350 800 1150 670 65 G1 1/4″
10.5 152 1.6-3.2 56.5-113 22 30 1350 800 1150 670 65 G1 1/4″
13 189 1.4-2.8 49.4-98.9 22 30 1350 800 1150 670 65 G1 1/4″
DVA-30 7.5 109 2.7-5.31 95.3-187.5 30 40 1450 900 1200 690 65 G1 1/4″
8.5 123 2.5-5 88.3-176.6 30 40 1450 900 1200 690 65 G1 1/4″
10.5 152 2.1-4.21 74.2-148.7 30 40 1450 900 1200 690 65 G1 1/4″
13 189 1.9-3.75 67.1-132.4 30 40 1450 900 1200 690 65 G1 1/4″
DVA-37 7.5 109 3.4-6.72 120.1-237.3 37 50 1600 1000 1400 830 65 G1 1/4″
8.5 123 3.1-6.25 109.5-220.7 37 50 1600 1000 1400 830 65 G1 1/4″
10.5 152 2.8-5.51 98.9-194.6 37 50 1600 1000 1400 830 65 G1 1/4″
13 189 2.2-4.43 77.7-156.4 37 50 1600 1000 1400 830 65 G1 1/4″
DVA-45 7.5 109 4-7.99 141.2-282.1 45 60 Direct 
Driven
Air 
Cooling
1600 1000 1400 940 68 G1 1/2″
8.5 123 3.6-7.25 127.1-256 45 60 1600 1000 1400 940 68 G1 1/2″
10.5 152 3.3-6.55 116.5-231.3 45 60 1600 1000 1400 940 68 G1 1/2″
13 189 2.8-5.65 98.9-199.5 45 60 1600 1000 1400 940 68 G1 1/2″
DVA-55 7.5 109 5.2-10.35 183.6-365.5 55 75 1800 1200 1400 1150 68 G2″
8.5 123 4.9-9.75 173-344.3 55 75 1800 1200 1400 1150 68 G2″
10.5 152 4.4-8.8 155.4-310.7 55 75 1800 1200 1400 1150 68 G2″
13 189 3.9-7.85 137.7-277.2 55 75 1800 1200 1400 1150 68 G2″
DVA-75 7.5 109 7-13.95 247.2-492.6 75 100 1800 1200 1400 1400 72 G2″
8.5 123 6.5-12.98 229.5-458.3 75 100 1800 1200 1400 1400 72 G2″
10.5 152 5.9-11.79 208.3-416.3 75 100 1800 1200 1400 1400 72 G2″
13 189 5-10 176.6-353.1 75 100 1800 1200 1400 1400 72 G2″
DVA-90 7.5 109 8.3-16.55 293.1-584.4 90 120 Direct 
Driven 
Air 
Cooling
2150 1300 1550 1900 72 DN50
8.5 123 8-15.98 282.5-564.3 90 120 2150 1300 1550 1900 72 DN50
10.5 152 6.9-13.86 243.6-489.4 90 120 2150 1300 1550 1900 72 DN50
13 189 6.1-12.27 215.4-433.3 90 120 2150 1300 1550 1900 72 DN50
DVA-110 7.5 109 10.3-20.69 363.7-730.6 110 150 2450 1600 1700 2450 75 DN80
8.5 123 9.9-19.89 349.6-702.3 110 150 2450 1600 1700 2450 75 DN80
10.5 152 8.3-16.52 293.1-583.3 110 150 2450 1600 1700 2450 75 DN80
13 189 7-14.04 247.2-495.8 110 150 2450 1600 1700 2450 75 DN80
DVA-132 7.5 109 12-23.98 423.7-846.7 132 175 2450 1600 1700 2670 75 DN80
8.5 123 11.5-22.95 406.1-810.4 132 175 2450 1600 1700 2670 75 DN80
10.5 152 10.2-20.41 360.2-720.7 132 175 2450 1600 1700 2670 75 DN80
13 189 8.4-16.75 296.6-591.4 132 175 2450 1600 1700 2670 75 DN80
DVA-160 7.5 109 15.2-30.41 536.7-1073.8 160 215 2650 1600 1800 3250 78 DN80
8.5 123 14.1-28.12 497.9-992.9 160 215 2650 1600 1800 3250 78 DN80
10.5 152 11.7-23.36 413.1-824.8 160 215 2650 1600 1800 3250 78 DN80
13 189 9.8-19.5 346-688.5 160 215 2650 1600 1800 3250 78 DN80
DVA-185  DVA-185W 7.5 109 16.2-32.45 572-1145.8 185 250 Direct 
Driven 
Air 
Cooling 
or 
Water 
Cooling
2650 1600 1800 3250 78 DN80
8.5 123 15.1-30.12 533.2-1063.5 185 250 2650 1600 1800 3250 78 DN80
10.5 152 13.7-27.45 483.7-969.3 185 250 2650 1600 1800 3250 78 DN80
13 189 12.2-24.43 430.8-862.6 185 250 2650 1600 1800 3250 78 DN80
DVA-200  DVA-200W 7.5 109 17.4-34.78 614.4-1228.1 200 270 2800 1950 2000 3850 82 DN100
8.5 123 16-31.98 565-1129.2 200 270 2800 1950 2000 3850 82 DN100
10.5 152 14-27.95 494.3-986.9 200 270 2800 1950 2000 3850 82 DN100
13 189 13-25.98 459-917.4 200 270 2800 1950 2000 3850 82 DN100
DVA-220  DVA-220W 7.5 109 18.5-36.97 653.2-1305.4 220 300 2800 1950 2000 4600 82 DN100
8.5 123 17.2-34.46 607.3-1216.8 220 300 2800 1950 2000 4600 82 DN100
10.5 152 15.7-31.48 554.4-1111.6 220 300 2800 1950 2000 4600 82 DN100
13 189 14.2-28.45 501.4-1004.6 220 300 2800 1950 2000 4600 82 DN100
DVA-250  DVA-250W 7.5 109 21-41.97 741.5-1482 250 350 2800 1950 2000 5100 82 DN100
8.5 123 20.4-40.75 720.3-1438.9 250 350 2800 1950 2000 5100 82 DN100
10.5 152 19.2-38.39 678-1355.6 250 350 2800 1950 2000 5100 82 DN100
13 189 17.6-35.1 621.5-1239.4 250 350 2800 1950 2000 5100 82 DN100

*) Specifications are subject to change without prior notice

DENAIR Factory

Why Choose DENAIR?

DENAIR Hannover Messe 2017

We carefully selected for you the classic case

DENAIR Air Compressor in Russian Car Factory

Project Name: Russian car factory.

Product Name and Model: Screw air compressors DVA-250 *1, DA-250 *3, DA-90 *1, DVA-90 *1. Refrigerant air dryer DAD-50HTF *1, DAD-15HTF *1. Adsorption dryer DAD-60MXF*1.

Working time: From June, 2016 till now.

Event: DENAIR produced special compressor equipment for car factory in Russia. All compressors can be controlled by 1 computer using Metacentre control system.

In the factory will be produce Chinese brand cars. We try our best to make observation “Made in China ” associate not with cheap price, but with high quality, innovation and grate stability.

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.386,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.

Types of Air Compressors

There are many types of Air Compressors available on the market. Learn which 1 is right for your needs and what makes 1 better than another. Find out more about Single-stage models, Oil-free models, and Low-noise models. This article will explain these types and help you decide which 1 you need. You can also learn about Air Compressors that have single-stage compressors. If you are looking for a high-quality compressor, this article will help you choose a unit.
air-compressor

Air Compressors

Air compressors work by forcing atmospheric air through an inlet valve. As the piston moves down, it pulls atmospheric air into the chamber. As the piston rises, it forces the compressed air out of the cylinder through an exhaust valve. One of the most common types of air compressor is the reciprocating type. Another type of compressor is a single-stage piston. These types of compressors compress air in 1 stroke – equivalent to the complete rotation of the piston’s crankshaft.
These devices change electrical or mechanical energy into pressurized air. When air is compressed, its volume decreases, increasing its pressure. Air compressors typically have a minimum pressure of 30 bars. The lower pressure band is the range of air pressure. Most compressors are controlled separately, but network controls can be used to interconnect multiple compressors. This type of controller will not work for all types of compressors. There are other types of air compressors that can communicate with each other.
Compressed air has multiple applications in all kinds of industries. In agriculture, it can power pneumatically powered material handling machines for irrigation and crop spraying. Dairy equipments also use compressed air. Compressors are also used in the pharmaceutical industry for mixing tanks, packaging, and conveyor systems. Portable air compressors, which can be powered by diesel fuel, are frequently used at remote drilling sites. Portable air compressors are also commonly used in oil and gas. They can be used to remotely control valves and install reactor rods.
Whether you use an air compressor for agricultural purposes or in a manufacturing setting, there are some features to consider when choosing an air compressor for your needs. A good compressor will have a safety device. It will automatically shut off the input air and output air once sufficient compressing has been achieved. These features will help your air compressor remain efficient and protect your equipment. The safety device is an important feature of any air compressor to increase its overall efficiency.
Vane air compressors are the most common type. They are generally smaller and less powerful than reciprocating piston compressors, so you can use 1 of these for applications that are under 100 horsepower. The vane air compressors have low compression ratios and high capacities, but they are generally limited to low-power applications. Vane compressors tend to run hot, and they typically have a low compression ratio. It is important to choose the correct oil viscosity for your compressor.
air-compressor

Single-stage models

When comparing single-stage air compressors, look for the term “stages.” Multi-stage compressors use 2 stages and can handle more capacity and pressure. One stage involves pressurizing air using a piston and a lower-pressure cylinder. This compressed air is then moved to a storage tank. Single-stage models tend to be more energy-efficient than their two-stage counterparts. But if you don’t need a high-pressure cylinder, a single-stage air compressor can be the best choice.
Although single-stage air compressors produce less power, they can produce enough air to power pneumatic tools and other pneumatic equipment. These single-stage units are most useful for smaller-scale home projects and DIY projects. For more industrial purposes, a dual-stage model is the best choice. But if you’re in a hurry, a single-stage unit may be sufficient. Ultimately, it depends on what you plan to do with the air compressor.
Single-stage air compressors feature a single cylinder, 1 piston stroke for each revolution of pressurized air. Single-stage compressors are typically smaller and more compact, making them a good choice for smaller work environments. Their cfm capacity (cubic feet per minute) is an important indicator of operating capacity. If you plan to use multiple pneumatic tools, you will probably need a higher cfm model. Similarly, the horsepower of single-stage compressors indicates its working capacity. One horsepower moves 550 pounds per foot per minute.
Multi-stage air compressors are generally more expensive and more energy-efficient than single-stage units, but they can offer higher air flow rates. While they may be more complex, they can lower general operating expenses. If you plan on using your air compressor for industrial or commercial use, a dual-stage model might be the best choice. However, if you’re planning to use the air compressor for mass production, a single-stage model may be the best choice.
Single-stage air compressors have the same piston size and number of inlets, while dual-stage models have a smaller first piston and a much longer second piston. Both have a cooling tube in between the 2 pistons to reduce the air temperature before the second round of compression. The single-stage model is typically small and portable, while the double-stage air compressor is stationary. These compressors can both be stationary and large.

Low-noise models

Despite its name, low-noise models of air compressors are not all the same. The noise level of a compressor can be affected by several factors, including the power source and proximity to the machine. Reciprocal compressors are generally louder than electric ones because of their many moving parts. By contrast, rotary-screw and scroll compressors have fewer moving parts and are quieter.
The noise level of a gas-powered air compressor can be extremely high, making it unsuitable for use indoors. To combat this problem, you can choose an electric model. The noise level of a compressor is primarily caused by motor friction. The cover of a piston is also a major factor in noise, as pistons with minimal covers will produce a lot of noise. Previously, oil was required for a quiet compressor. However, this has changed thanks to the medical industry’s demand for oil-free models.
The CZPT EC28M Quiet Air Compressor is another model that features quiet operation. This air compressor makes 59dB of noise. This level is low enough to allow you to carry on normal conversations while it cycles. In addition, this compressor has an industrial oil-free pump and a 2.8 Amp direct-drive induction motor. These 2 features make it a great choice for businesses.
Low-noise models of air compressors are available for the construction industry. However, these compressors are not necessarily low-quality, which is why you should consider the noise level of your air tool before purchasing one. The specialists at CZPT can recommend the low-noise models for your particular application and space. Noise can distract people who work near the air compressor. That is why many businesses now opt for these models.
air-compressor

Oil-free models

A number of oil-free models of air compressors are available, but what makes them special? Oil-free compressors don’t contain oil, so they’re lubricated by grease instead. They’re a good choice if you’re working with a small compressor and don’t want to risk damaging it. On the other hand, oil-free models do generate significant amounts of heat, which can damage the compressor. Higher pressure can grind the compressor against itself, or even warp it.
A few words of knowledge can help you choose the best oil-free air compressor for your needs. For example, a compressor’s horsepower is a measurement of how powerful the motor is. Higher horsepower means a higher PSI or ACFM. You can also use the ACFM to compare the two. Scroll technology is a modern air compression system that uses a stationary and mobile spiral. This reduces the volume of air in the compressor by directing it to the center.
Purchasing an oil-free air compressor doesn’t have to be a daunting task, though. A good distributor can advise you on what type of oil-free air compressor is right for you. This way, you can save money and enjoy peace of mind while using your air compressor. And, of course, the best way to get a great deal on an air compressor is to speak to a distributor who is knowledgeable about the products available.
An oil-free air compressor is a great option for businesses that are sensitive to the contamination of air. For example, in the pharmaceutical and food industry, a minuscule oil could spoil a product or even damage production equipment. Oil-free air compressors generally have lower maintenance costs than oil-flooded models because there are fewer moving parts. Because of this, oilless air compressors require fewer maintenance and may still need to be replaced occasionally.
A few advantages of an oil-free air compressor over an oil-lubricated 1 include lower noise levels. Oil-free air compressors tend to be less noisy and run more quietly than oil-injected ones, but you should still carefully weigh the pros and cons before making a decision. Also, consider how much you use your air compressor before choosing a model. The pros outweigh the cons. In the end, you’ll be glad you chose an oil-free air compressor.

China factory 25 Horsepower Oil Injected Rotary Screw Air Compressor with Dryer and VSD     with Great qualityChina factory 25 Horsepower Oil Injected Rotary Screw Air Compressor with Dryer and VSD     with Great quality

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