2 Stage Energy Saving 40% Oilless Rotary Twin Double Screw Air Compressor

Best Price Two 2 Stage Compression engery saving 40% mute AC power Rotary Oilless Industrial Rotary Twin double  Screw Air Compressor with Ce and ISO   1. Company introduces & advtanges of Tianjin Great Air Compressor Manufacturing :  Tianjin Great Air compressor Co., ltd, is one leading manufacture and exporter of air compressor in Tianjin, China, Founded 1957 years, coving an area of 200000 square meters. Now exporting to more than 120 countries. Has established a huge sales and service network at home and abroad.GREAT' s main products range as blow:-oil-injected rotary screw air compressor(fixed speed, variable speed; medium & low pressure)-portable rotary screw air compressor(diesel powered, electric motor powered)- low pressure screw air compressor- outdoor screw air compressor - oil free screw blower(variable speed)-oil free air compressor( scroll type, dry type, water lubricated type)-air treatment equipment( air dryer, air tanker, filers etc.)All of our machines are designed for high realiable performance, easy maintenance, and maximum energy efficiency.   Our company advantages 1. Over 60 years China professsinal manufacture for air compressor ,An ISO9000 company 2.European standard,China made &factory directly supply 3. Superior porformance &high efficiency with reasonable price 4.Low power consumptions for more output5.Trouble free & cost saving6.Timely pre-sale and after-sale service 7.Easy operatation &maintenance   2. Products introductions &advantages for  2 stage compression  screw air compressor :  Our products features1.Approved by ISO9001/ SGS,/CE etc..2.Adopt the most advanced technology and world famous brand of twin screw main machine designing and  manufacturing, no leakage, ensure high air discharge and low energy consumption.3.  Adopt high quality electric motor with SKF bearing, IP54, convenient maintenance and long use life.4. Adopt world famous brand of air intake filter, oil filter, air and oil separator, realize high filtration accuracy, compressed air oil content under 3ppm, reach to international advanced standard level. 5. Equip with the most advanced air control system. Adopt air intake valve, intelligent control system and pressure sensor combined control method, can operate by ON and OFF two point, stepless air capacity control system, time-delay stop and automatically start device three air capacity control methods, can meet different clients demand.6.Intelligent microcomputer control system, Chinese and English language operation interface, malfunction display, alarm and machine stop automatically.7.Adopt high quality and world famous brand of main components, like UK APD oil filter, America AMOT temperature controlling valve, SCHNEIDER electric parts and etc., high efficiency, reliable and long use life.8. Equip with after air compression cooler combination with the air and water separator, compact structure and save space, avoid leakage and improve the air and water separating efficiency mostly.Feature  for 2 stage compression screw air compressor :The state clearly classifies energy efficiency levels limit value. The 2 class  energy efficiency products can save 10%~15% of the power than 3 class energy efficiency products.and the 1 class energy efficiency products  can save 10%~15% of the power than 2 class energy efficiency products. energy-saving effect is remarkable .Energy -saving principle :Curve 12 '3' is an isothermal compression process, it form the area of 613 '4 with Y-axis which is the indicated work of isothermal compressionCurve 123'' is the 1 stage compression process, it form  the area 613 ''4 with Y-axis which is the indicator work of the 1 stage compression.Curve 12, 22 'and 2' 3 are the 2 stage compression process, and the sum of the area 6125 and the area 52 '34 (6122' 34) with Y-axis which is the indicator work of the 2 stage compression.It can be seen from the diagram that the isothermal compression process 613 '4 area (indicating work) is the smallest, but it is impossible to achieve isothermal compression in the air compressors' actual compression.The 1 stage compression has the bigger area of power 13 '3 than isothermal compression, while the 2 stage compression saves 22" 33 "area of power.Features description:Oil injected screw air compressor can achieve the usual power system exhaust pressure by only Single stage compression. But from the view of energy consumption point, the use of 2 stage of compression can effectively reduce energy consumption.So, Tianjin Great air compressor co., LTD. has introduced 2 stage compression of energy efficiency screw air compressor. The 2 stage compressed-jet screw air compressor has more capacity of 12% to 18% than the single stage compressed injection screw  air compressor with the equivalent power. In other words, with the same amount of compressed air, the 2 stage compression can save an average of 15% of power compared with 1 stage compression2 stage compression of oil injected screw machine has the uniqu