Analysis of the Six Usage Advantages of ZBK Roots Vacuum Pump

The ZBK Roots vacuum pump, as a commonly used rough vacuum equipment in the industrial field, is widely used in papermaking, chemical, food, pharmaceutical and other industries due to its unique design and performance advantages. Its core advantages can be summarized into the following six points:

I. High Efficiency and Energy Saving, Leading Pumping Speed

The ZBK series adopts a Roots dual-rotor structure, where two rotors are driven in reverse rotation by synchronous gears to form periodic volume changes for gas extraction. Its maximum pumping speed can reach 75 m³/min, and its gas extraction efficiency is more than 50% higher than that of water ring vacuum pumps under the same power. For example, in the dewatering section of the fourdrinier paper machine in the papermaking industry, the ZBK-18B model pump can stably maintain vacuum degree, saving 30 tons of daily water consumption per unit compared to traditional water ring pumps, and reducing annual electricity costs by over 100,000 yuan.

II. Compact Structure, Strong Adaptability

This series of pumps adopts a horizontal/vertical dual-structure design, with a volume 30% smaller than similar products. The rotor gap is controlled between 0.15-0.4 mm, ensuring sealing while avoiding friction, and it can handle dry and wet air, steam-water mixtures, and other media. In the dust removal system of cigarette factories, the ZBK-15A model pump can continuously and stably extract gas containing smoke and dust. Its wear-resistant rotor and stainless steel pump body combination extend the equipment's service life to over 8 years.

III. Clean and Oil-Free, Easy Maintenance

The pump cavity is designed without lubricating oil, and the gears and bearings are lubricated through an oil bath, eliminating oil vapor pollution at the source. In the vacuum drying process in the pharmaceutical industry, the ZBK-17C model pump can maintain cleanliness, requiring only one gear oil change per year, reducing maintenance costs by 60% compared to screw pumps. Its modular design allows rotor replacement in just 2 hours, significantly reducing downtime.

IV. Wide Pressure Operation, Stable and Reliable

It maintains a constant pumping speed within the range of 0.053 kPa to atmospheric pressure, making it particularly suitable for vacuum systems with pressure fluctuations. In vacuum extraction scenarios for distillation towers in the chemical industry, the ZBK-18 model pump can be paired with a steam condenser, increasing the condensable steam condensation rate to 95%, avoiding pump cavity corrosion, and improving system stability by 40%.

V. Intelligent Control, Safety Protection

It integrates pressure protection devices and noise reduction structures. When the exhaust pressure exceeds the limit, the bypass valve automatically opens to prevent motor overload. In the vacuum packaging segment of the food industry, the ZBK-13 model pump's silencer can control noise below 75 dB, while real-time monitoring of the sealing status through the gland ensures a leakage rate below 0.1%, guaranteeing production safety.

VI. Economical and Durable, High Return on Investment

It adopts a high-strength cast iron pump body and helical gear design, improving wear resistance by 2 times. Taking the ZBK-11B model pump as an example, its total cost of ownership over 5 years is only 65% of that of water ring pumps. In the vacuum concentration section of the sugar industry, a single unit can replace 3 water ring pumps, with the investment payback period shortened to 1.8 years.