Edwards Vacuum, a global leader of vacuum and abatement solutions, has recently introduced a new product to its portfolio of dry claw vacuum pumps: the DZS 100 – 400 VSD+ series. This new range of pumps is designed to offer high performance, low cost of ownership, and reduced environmental impact for a variety of industrial applications.
What is a dry claw vacuum pump?
A dry claw vacuum pump is a type of positive displacement pump that uses two claw-shaped rotors that rotate in opposite directions inside a housing. The rotors do not touch each other or the housing, creating a series of chambers that trap the gas and move it from the inlet to the outlet. The gas is compressed and discharged without any oil or water contact, resulting in a clean and oil-free vacuum.
What are the benefits of the DZS 100 – 400 VSD+ series?
The DZS 100 – 400 VSD+ series offers several advantages over conventional dry claw vacuum pumps, such as:
- Energy efficiency: The pumps are equipped with a variable speed drive (VSD) that automatically adjusts the motor speed to match the process demand, saving up to 50% of energy compared to fixed speed pumps. The pumps also have a high efficiency IE3 motor and a low rotational speed, which reduce power consumption and noise levels.
- Reliability and durability: The pumps have a robust and simple design, with no internal valves, gears, or belts that can wear out or break. The rotors are made of corrosion-resistant stainless steel and coated with a durable surface treatment. The pumps have a long service interval of up to 5 years, depending on the application.
- Easy installation and maintenance: The pumps are compact and lightweight, with a small footprint and a vertical design that saves floor space. The pumps have a modular design that allows easy access to the pumping chamber for cleaning and inspection, without disturbing the gearbox or the timing. The pumps have a user-friendly controller that displays the status and performance of the pump, and allows remote monitoring and control via Modbus or Profibus.
- Environmental friendliness: The pumps do not use any oil or water in the pumping process, eliminating the risk of oil leaks, contamination, or disposal issues. The pumps have a low noise level of less than 70 dB(A), and a low heat emission, which improve the working environment and reduce the need for cooling.
What are the applications of the DZS 100 – 400 VSD+ series?
The DZS 100 – 400 VSD+ series is suitable for a wide range of industrial applications that require a clean and oil-free vacuum, such as:
- Pneumatic conveying: The pumps can transport bulk materials, such as powders, granules, or pellets, from one location to another using a pipe system and a vacuum. The pumps can handle abrasive, moist, or explosive materials, and can operate in continuous or intermittent mode.
- Food processing: The pumps can be used for various food processing operations, such as packaging, filling, drying, degassing, or sterilization. The pumps can handle food products, such as meat, dairy, cereals, or confectionery, without affecting their quality or safety.
- Woodworking: The pumps can be used for holding, clamping, or lifting wood pieces during machining, cutting, or assembly. The pumps can handle wood dust, chips, or shavings, and can operate in harsh environments.
- Printing: The pumps can be used for feeding, transporting, or holding paper sheets or rolls during printing, coating, or laminating. The pumps can handle paper of different sizes, weights, or qualities, and can operate at high speeds.
The table below summarizes some of the key features and specifications of the DZS 100 – 400 VSD+ series.
| Feature | Specification |
|---|---|
| Nominal pumping speed | 100 – 400 m3/h |
| Ultimate pressure | 50 – 140 mbar (a) |
| Motor power | 2.2 – 7.5 kW |
| Inlet flange | DN 50 – 80 ISO-K |
| Outlet flange | DN 40 – 63 ISO-K |
| Weight | 145 – 275 kg |
| Dimensions (L x W x H) | 813 x 454 x 1039 mm – 1013 x 554 x 1209 mm |