The primary function of an air compression system is to compress atmospheric air to a higher pressure
for use in various industrial and mechanical applications.
Model:DM series Roots vacuum pump (Water Cooling) Brand:DREAM Pumping speed: 70~5000m³/h or 19.45~1388.89L/s Extreme Pressure:0.005mbar or 0.5pa Motor power：1.5~37KW or 2.04~50.31hp
Model:DM series Roots vacuum pump (Air Cooling) Brand:DREAM Pumping speed: 150~3750m³/h or 41.67~1041.67L/s Extreme Pressure:150mbar or 15000pa Motor power：3~400KW or 4.08~543.85hp
The Roots vacuum pump is a rotary positive displacement vacuum pump. The two three-lobe rotors keep a certain clearance with the pump chamber, and the two rotors mesh with each other and keep a certain clearance by a pair of synchronous counter-rotating high-precision gears. The right figure shows the structure of the pump, from Figure Ⅰ to Ⅳ for the rotor.
Rotating in the pump chamber and complete a suction and discharge process. The Roots vacuum pump with a three-lobe rotor has obvious technical advantages over the traditional Roots vacuum pump with a two-lobe rotor in terms of pumping efficiency, maximum permissible differential pressure, temperature rise, vibration, noise and other main performance indexes.
Advantages
Roots pumps can be used for a wide range of pressures and can achieve a large pumping speed within this range.If gas is suddenly released from the system, the Roots pump can release the gas mixture at a faster pumping rate.This feature makes Roots pumps superior to diffusion and oil-seal mechanical pumps, and can be used as booster pumps in pumping systems in Roots pump units.
Equipped with a bypass overflow valve that can be activated under atmospheric pressure, reducing the pumping time; There are gaps between rotors and between rotors and the pump chamber wall. The moving parts inside the pump have no friction and do not require lubrication. There is no oil in the pump chamber.
The rotor has a symmetrical shape, good dynamic balance, smooth motion, high-precision gearing, and low operating noise.
Compact and small footprint, usually horizontal, with vertical flow of gas in the pump cavity, which facilitates the removal of dust or condensate from the pump.
Choosing suitable rotor profiles and precise grinding can achieve high volumetric efficiency.
Low operation and maintenance costs.
What is the warranty policy?
Warranty certificate by beneficiary for a period of 12 months from the date of commissioning or 18 months from the date of shipment whichever is earlier.Any faulty part/components found due to manufacturing dafects during warranty period will be replaced at free of costs. Warranty policies for different models of machines may vary depending on the configuration. You can ask DREAM sales engineers for specific details.
What are some of the lubrication methods for pumps?
Oil-Injected or oil-free are available.
How do you choose the right pump?
It is necessary to inform the sales engineer about the working pressure, exhaust flow and power, as well as other necessary parameter information.
How can I choose the bump? Oil-injected or oil free?
Depending on your industry and production industry requirements, whether there are oil content requirements.
How about the performance of the vacuum pump of DREAM brand?
DREAM brand vacuum pump has high temperature resistance, strong stability, low noise and long-term stable operation.
What are the main features of the DM-series Roots vacuum pump?
The DM-series Roots vacuum pump features an oil-free design, high efficiency, low noise levels, and the ability to handle a wide range of vacuum applications. It is also known for its reliability and durability.
In which industries can the DM-series be applied?
The DM-series Roots vacuum pump is suitable for use in semiconductor manufacturing, vacuum coating, vacuum drying, scientific research, and aerospace industries, where a high-purity vacuum environment is required.
How does the oil-injected rotary vane vacuum unit differ from the DM-series?
The oil-injected rotary vane vacuum unit uses oil for lubrication and sealing, which can provide higher vacuum levels and better performance in certain applications. It is ideal for industrial processes that require continuous operation and higher vacuum pressures.
What maintenance is required for the DM-series Roots vacuum pump?
Regular maintenance includes checking the seals, cleaning or replacing filters, and inspecting the internal components for any signs of wear or damage. It is recommended to follow the manufacturer's maintenance schedule and guidelines.
How often should the oil be changed in the oil-injected rotary vane vacuum unit?
The oil should be changed at regular intervals, typically every 3000 hours of operation or as recommended by the manufacturer. Regular oil changes ensure optimal performance and prevent contamination of the vacuum system.
Can the DM-series Roots vacuum pump handle corrosive gases?
While the DM-series is designed for a wide range of applications, it is not specifically designed to handle highly corrosive gases. For corrosive gas applications, special materials or coatings may be required.
What is the expected lifespan of the DM-series Roots vacuum pump?
With proper maintenance and care, the DM-series Roots vacuum pump can have a long lifespan, typically ranging from several years to over a decade, depending on the usage and operating conditions.
Is the oil-injected rotary vane vacuum unit suitable for food processing applications?
Yes, the oil-injected rotary vane vacuum unit can be used in food processing applications where vacuum packaging or vacuum drying is required. However, it is important to ensure that the oil used is food-grade and complies with industry standards.
Can the DM-series Roots vacuum pump be used in a high-temperature environment?
The DM-series Roots vacuum pump is designed to operate within a certain temperature range. While it can handle moderate temperatures, it may not be suitable for extremely high-temperature environments. It is important to check the specifications and consult with the manufacturer for specific temperature limits.
What kind of support and warranty does Dream Compressor provide for their vacuum pumps?
Dream Compressor typically offers comprehensive support, including technical assistance, spare parts, and a warranty on their products. The specific terms and conditions of the warranty may vary, so it is recommended to check the manufacturer's website or consult with a sales representative for detailed information.
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