250kw Variable Frequency Compressor:
1. Variable frequency drive
2. Controllable air flow, Controllable cost
3. Pass CE, ISO9001 Quality Certificate
4. Complete before-on-after sales service
---Corresponding frequency conversion,
Which controls the air flow by changing the rotational speed of motor, making the air output and electricity consumption smoothly vary synchronously with the different air flow. When the air use quantity falls, the air supply decreases and so does the electricity consumption for energy conservation. Points.
---Long Life air compressor
Rotors are asymmetric in profile, backed up by ball bearings and roller bearings; Operate at a low speed, thereby low in abrasion and maintenance expenses, air end are long service life. Helical gears can produce axial force to kill some acting force, which reduces the load of the bearing of air end.
---More reliable operation
With frequency conversion soft start, it avoids grid impact, self-engendered mechanical impact, and negative factors of lasting high speed operation of the air end. Without the participation of a contactor, it prevents point contact failure. Setting desired pressure at discretion, and maintaining constant pressure
Users can set pressure between 3-14 bars at their discretion, without changing the gear of belt.
|
Model |
|
DVA-250GA/W |
|
Air flow Capacity |
m3/min |
6.9-45 |
|
Working pressure |
Bar |
7-13 |
|
Motor power |
KW |
250 |
|
HP |
340 |
|
Noise |
dB(A) |
78± 2, measured according to the international GB/T4980-2003 standard |
|
Outlet Diameter |
mm |
DN100 |
|
Cooling method |
|
Air cooling/Water cooling |
|
Driven method |
|
Direct driven |
|
Oil content of discharged air |
ppm |
Less than 3 ppm |
|
Motor |
Pressure |
Mpa |
0.1033 |
|
Rotation speed |
rpm |
2980 |
|
Starting method |
|
Variable Frequency Start |
|
Protection class |
|
IP54 |
|
Insulation class |
|
F class |
|
Voltage |
V/Ph/Hz |
380V/3Ph/50Hz as standard, also can be changed according to customer' s requirements. |
|
Dimension |
L |
3330 |
|
(mm) |
W |
1850 |
|
|
H |
1935 |
|
Weight |
Kg |
4800 |
In 1875, Germany Denair launched the first refrigerant air compressor in the world,
In 1998, Germany Denair set up a representative office in Shanghai, China.
In 2006, Shanghai Denair Compressor Co., Ltd and Denair (Shanghai) Compressor Manufacturing Co., Ltd were established to start to produce and sell air compressor in Chinese market.
In 2009, Denair set up offices in main cities for China and pioneered 4S sales and service model in Compressor industry.
In 2010, Denair set up overseas business department and began to export air compressors and mining equipments to the world. Until now, Denair products have exported to more than 60 countries especially such as South America, Southeast Asia, Middle East, Africa and so on.
In 2013, Denair made an expansion plan to build 12 offices in the world within 5 years. Recently we have had the first overseas office---Surabaya, Indonesia office.
In 2014, Denair prepares to invest and build a new factory which covers an area of approximate 20000 square meters in Jiangsu province. It is expected to be completed within two years.
