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Products Description
Model: DDM-250
Free air delivery: 27.7~39m3/min
Working pressure: 7,8,10,13bar Air end: Two stage compression
Control: PLC
Driven: direct coupling
Cooling: by air
Electric motor: Permanent magnet type,250hp 185kW 380V/50hz/3ph, IP54 protection level
Inverter brand: Inovance
Discharge temperature: less than ambient +8 ℃
Noise: less than 78 dB(A)
Air outlet size: DN100
Dimension: 3900*2100*1980mm
Weight: 5900kg
Why two-stage compression is more energy-efficient than single-stage？
According to the working principle of compressor know, isothermal compression isone of the most province work. The curves for the compression process indicator diagram, below 12 '3' for the isothermal compression process, and the vertical form of area of 613"4 indicated work for isothermal compression. Curve 123 "as the primary compression process, and the vertical form of area of 613 4"as the level of compression instruction work.Curve 12,22,2 '3 for two stage compression process, and the vertical form of area is the sum of 6125 and 52' 34 (6122 '34) for the two stage compression indicated work. From here you can see that the isothermal
compression process 613 '4 minimum area (indicated work), but in actual compression process of the compressor can't isothermal
compression, level 13 more compression than isothermal compression' 3 "the power of the area, and two stage compression level of
compression than the power of 2 '23"3 area.
Two-stage compression energy saving case
1.250KW single-stage compressorion type compressor running in the state full loading, the eletricitity cost per hour is about 200 yuan, operating 800 hours per year, the electricity cost is about 1.6 million;
2. Compared with the single-stage compressor,two-stage compression compressor can reduce more than 10% of eletricity consumption. Two-stage compression will save 16 million per year.
Application Industry
Project Case
Product packaging
• Packing Details: Plywood crate pallet plus foam board and bubble film, Full closed wooden case. 1pcs/each package (for
stationary screw air compressor)
• Shipping method: by sea, by LCL/FCL or as requested
• Delivery method: FOB, CFR, CIF and EXW etc.
• Delivery time: in 7-15 days after receiving deposit (customized machines not included)
Our service
After-sale Service
• Any questions or requests before, during or after sales, we would like to help you any time and will find you the best solution
in 24 hours.
• Warranty: One year for the whole machine Genuine spare parts will be provided with the best price.
• An overboard engineer service is available.
Overseas Engineer Service
• We are available to send our engineer for aboard service. Only need you to arrange accommodation, transportation, and
translator. The extra cost for each will be discussed based on the local price level.
Special Customized Service
(1) Full OEM
• Quantity: at least 5 pcs
• In this plan, we will do all the changes (Color, nameplate, and logo) as your need, and will not charge extra fee.
(2) Half OEM
• Quantity: no limit
• Under this program, we can make the necessary alteration (nameplate and logo) but we will charge some extra fee for the
nameplate, as the nameplate factory has the MOQ.
(3) Logo OEM
• Quantity: no limit
• Only the logo will be changed to yours, and no extra fee will be charged.
Send your inquiry directly to us
