Asynchronous Water-cooled Roots Vacuum Pumps
Upgrade to zero-leakage efficiency with Ever-Power’s Asynchronous Water-Cooled Roots Vacuum Pumps (ZJ-B/ZJP-B). Featuring enclosed water-cooled motors for high-temp environments and compact installation. Ideal for chemical and semiconductor vacuum systems. Get a quote.
The ultimate Roots Vacuum Pump Systems for zero-leakage performance, high-temperature adaptability, and compact industrial installation.
Product Overview: Innovation in Vacuum Sealing
In the evolving landscape of Industrial Roots Vacuum Blowers, leakage and heat management remain the two biggest challenges. Ever-Power's new ZJ-B and ZJP-B series address these issues head-on by integrating an asynchronous water-cooled motor directly into the pump's architecture. This design inherits the high pumping speed and reliability of the original Roots pump while introducing game-changing advantages for Roots Vacuum Pump for Manufacturing Industry applications.
Unlike standard air-cooled units that rely on shaft seals and ambient airflow, our Asynchronous Water-Cooled pumps utilize a "canned" motor design. This ensures that the motor and vacuum pump form a fully enclosed space after installation. The result is a High-Performance Roots Pump that offers complete containment of process gases, making it an indispensable tool for industries handling hazardous or valuable vapors.
1. Zero Leakage Guarantee
By eliminating dynamic shaft seals, we have completely removed the primary failure point for leakage. This Oil-Less Roots Vacuum Pump design ensures that no oil escapes into the environment and no outside air contaminates your vacuum process.
2. Superior Water Cooling
Water cooling provides significantly higher heat dissipation efficiency than ordinary air-cooled motors. This results in a longer motor life and stable operation, even when the pump is running continuously under heavy load.
3. High-Temperature Adaptability
Designed for harsh environments, these pumps excel where air-cooled motors fail. They maintain stable operation in confined spaces, hot ambient conditions, or enclosures where airflow is restricted.
4. Compact Footprint
The direct-coupled design significantly reduces external dimensions compared to standard pumps with protruding motors. This greatly saves installation space, allowing for denser skid layouts in Vacuum Systems with Roots Pumps.
ZJ-B / ZJP-B Series Specifications
1. Main Performance Parameters
The "B" series denotes our Asynchronous Water-Cooled configuration. The ZJP models feature an integrated overflow valve for overload protection.
| Model | Ult. Pressure (Pa) | Pumping Speed (L/s) | Max Diff (hPa) | Inlet (mm) | Outlet (mm) | Motor Power (kW) | Rec. Backing Pump | Cooling Water (L/min) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| ZJ-600B | 3×10⁻² | 600 | 58 | 200 | 200 | 7.5 | 2H-70B / 2H-150 | 8 | 499 |
| ZJ-1200B | 3×10⁻² | 1200 | 53 | 250 | 200 | 11 | 2H-150 | 10 | 650 |
| ZJP-600B | 3×10⁻² | 600 | 32 | 200 | 200 | 7.5 | 2H-70B / 2H-150 | 8 | 573 |
| ZJP-1200B | 3×10⁻² | 1200 | 44 | 250 | 200 | 11 | 2H-150 | 10 | 740 |
2. Installation Dimensions: ZJ Series
| Model | L0 | L1 | L2 | L3 | L4 | H1 | H2 | H3 | W1 | W2 | W3 | 4-φC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ZJ-600B | 1204 | 399 | 292.5 | 585 | 25 | 540 | 50 | 175 | 460 | 560 | 560 | 4-φ24 |
| ZJ-1200B | 1500 | 509 | 315 | 630 | 25 | 570 | 50 | 200 | 500 | 600 | 560 |
3. Installation Dimensions: ZJP Series
| Model | L0 | L1 | L2 | L3 | L4 | H1 | H2 | H3 | W1 | W2 | W3 | 4-φC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ZJP-600B | 1024 | 399 | 277.5 | 760 | 27.5 | 673 | 70 | 235 | 480 | 590 | 375 | 4-φ24 |
| ZJP-1200B | 1500 | 509 | 316 | 948 | 26 | 675 | 65 | 250 | 520 | 650 | 425 |
Ideal Applications for Water-Cooled Roots Pumps
The ZJ-B/ZJP-B series is specifically engineered for challenging industrial environments where standard air-cooled pumps fall short. It is the preferred choice for:
Chemical Distillation
Handling toxic or corrosive vapors where zero leakage is mandatory to protect personnel and meet environmental regulations.
Semiconductor Processing
Providing a clean, oil-free vacuum environment for crystal pulling and deposition processes, enhanced by water-cooled stability.
High-Temperature Zones
Operations in hot climates or enclosed furnace rooms where air-cooled motors would overheat and trip.
Lithium Battery Production
Electrolyte filling and drying processes requiring reliable, contamination-free High Capacity Roots Vacuum Pumps.
What Our Clients Say
★★★★★
"We retrofitted our solvent recovery line with the ZJP-1200B. The water-cooled motor runs surprisingly cool even during our peak summer months. Zero seal leaks in over 18 months of operation."
— Maintenance Director, Chemical Plant (Texas, USA)
★★★★★
"Space was tight in our new cleanroom skid. The compact design of the ZJ-600B saved us critical footprint. Excellent engineering and robust build quality."
— Project Engineer, Semiconductor Equipment OEM (Taiwan)
Frequently Asked Questions (FAQ)
1. How does the Asynchronous Water-Cooled motor differ from a standard motor?
Standard motors are typically air-cooled and have an external shaft that requires a dynamic seal (like an oil seal) to enter the vacuum chamber. Our Asynchronous Water-Cooled motor is "canned" or enclosed directly with the pump, eliminating the dynamic shaft seal entirely. It uses water jackets for cooling, which is more efficient and quieter than cooling fans.
2. What are the cooling water requirements?
For the ZJ-600B/ZJP-600B models, the cooling water consumption is approximately 8 L/min. For the larger ZJ-1200B/ZJP-1200B models, it is around 10 L/min. The water should be clean industrial cooling water, typically below 30°C, to ensure optimal heat dissipation.
3. Can I replace my existing Magnetic Drive pump with this one?
Yes. The ZJ-B/ZJP-B series offers similar "zero leakage" benefits as magnetic drive pumps but uses an asynchronous canned motor technology. This can often be a more cost-effective solution for large industrial applications while providing robust performance and easier maintenance.
4. What is the difference between ZJ-B and ZJP-B?
The ZJP-B series features an integrated overflow valve (bypass valve). This allows the pump to start at higher pressure differentials by automatically recirculating gas if the pressure difference exceeds the limit (e.g., 32-58 hPa). The ZJ-B series is a standard booster without this valve and requires stricter pressure staging controls.
5. Is this pump suitable for use in explosive environments?
The enclosed design is inherently safer regarding leakage. However, for specific ATEX or explosion-proof requirements, please contact our engineering team. We can configure the electrical components and ensure the certification meets your specific hazardous zone requirements.
Ready to Eliminate Leakage in Your Vacuum Process?
Contact Ever-Power today for expert sizing, pricing, and technical support for your ZJ-B/ZJP-B Asynchronous Water-Cooled Roots Pumps.
Additional information
| edited | by hyw |
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