DSR Series Roots Blower Product Introduce DICHENG DSR Series Roots Blowers adopts the advanced technology of Japan, its air capacity is 0.78m3/min - 188.7m3/min, the pressure is from 9.8Kpa to 58.8Kpa. The main characteristic of our air blower is small volume, light weight, flow strong, noise small, steadily reliable operation. This air blower is mainly applied to such trades as water treatment, air transport, mine, vacuum packaging, aquaculture and etc. Our products export to Southeast Asia, Europe, North and South America and etc. Product Feature 1. Air flow and pressure can be customized 2. Stable air flow and less pressure variation 3. Clean air not with oil moist 4. Construction simple and easy maintenance 5. Bearing are all lubricated by oil moist 6. Long service life

Description of Performance parameters The performance parameters table shows the model, outlet diameter, rotate speed, discharge pressure, air capacity and power of motor. 1. The air capacity and pressure in the tables is in standard suction state. The standard suction state is 20℃ temperature, 1.033 kgf/cm2(101.3Kpa) Standard atmospheric pressure and 65% relative humidity. 2. The air capacity and pressure range of some blower models is repeated, to ensure the service life and low noise, should use the larger model. Unit conversion table Pressure Unit ft/min Gallon/ Gallon/ （scfm） min UK min...

Blower Structure Diagram Nitrile rubber Drive shaft Gear lock washer Driven shaft Drive side siding Gear side siding Drive bearing Driven bearing Sealing ring Nitrile rubber Sealing ring Nitrile rubber Bearing sleeve Bearing cover Grease nipple Bearing cover Gearbox seals Barley paper

Outline drawings and foundation installation DSR Roots blower ( Belt drive)

DSR Roots blower ( Coupling drive)

DSR-HB-U Roots blower ( Belt drive)

Pipe installation reference drawing

Blower Accessorie Inlet silencer Weight Outlet silencer Weight (Kg) Vertical outlet silencer Weight

Flexible joint Weight Check valve Weight

Noise test results Note: 1: The noise test result is tested at a distance of 1 meter from the blower. 2: The noise level is affected by the length of the line, the number of turns and the surrounding environment.

Common malfunctions and Solution Malfunctions Can not rotate Can rotated round by hand Abnormal sound or vibration The impurity in blower Skid, v-belt is too tight or too loose Pulley offset Pulley and belt cover friction Bearing oil lack or aging Gear oil lack or aging The safe valve leakage Foundation insufficient strength Piping resonance Exhaust pressure rises abruptly Anchor bolt is too loose Rotor interference The impurity in blower Check valve bad Exhaust pressure rises abruptly Temperature of working environment exceeds 40 ℃ Inlet silencer obstruction Pipeline leaks Airflow insufficient...

FAQ 1. What’s the information should I provide when inquiry? A: Air capacity B: Pressure C: Application D: Use environment(Temperature, atmospheric pressure) E: Do you need motor? Or other specials you give us will be more appreciated. 2. What is your warranty? Our warranty is 12 months after received the roots blower. During the warranty period, replace the damaged parts for free of charge. Out warranty period, to provide timely, high-quality technical services and price concessions spare parts to ensure continuous safe and high-quality equipment operation. 3. How long is the service life of...