ZJC/ZJP Series Roots Vacuum Pump Roots Pump
Contact Info
- Add:浙江·杭州·建德下涯焦树湾工业功能区88号, Zip: 311606
- Contact: 胡益航
- Tel:0571-64092376
- Email:1845315616@qq.com
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Overview SUMMARY
The Xin'anjiang brand ZJC series Roots vacuum pump is a positive displacement vacuum pump. It operates using a pair of figure-8-shaped rotors that maintain a specific clearance within the pump housing, rotating at equal speeds in opposite directions to achieve suction and exhaust.
The primary advantage of the ZJC Roots vacuum pump is its high pumping speed at low inlet pressures. However, it cannot operate independently and must be connected in series with a backing vacuum pump. The Roots vacuum pump can only start working once the pressure in the system being evacuated has been reduced by the backing pump to within the allowable inlet pressure range of the Roots pump. Moreover, under normal circumstances, the Roots vacuum pump is not permitted to operate under high pressure differentials, as this may cause overload and overheating, leading to damage. Therefore, when using a Roots vacuum pump, it is essential to appropriately select a backing vacuum pump and install necessary protective equipment. It is particularly important to note that when the Roots pump has undergone anti-corrosion treatment, using a water jet vacuum pump or an anti-corrosion water ring vacuum pump as the backing pump allows for the extraction of corrosive gases containing large amounts of water vapor.
Model Specification MODEL SPECIFICATION
Models·Performance·Parameters MODELS·PERFORMANCE·PARAMETERS
| Model | Ultimate pressure | Pumping speed L/S | Inlet/outlet diameter mm | Max. allowable pressure difference Pa | Rate of rotation r/min | Power KW | Recommended backing pump | |
| Pa | Torr | |||||||
| ZJC-30 | 5×10-2 | 3.7×10-4 | 30 | 80 | 1.2×104 | 1450 | 0.75 | JW-RPP-60/90/110 |
| ZJC-70 | 5×10-2 | 3.7×10-4 | 70 | 100 | 1×104 | 1450 | 1.1 | JW-RPP-180/280/360 |
| ZJC-150 | 5×10-2 | 3.7×10-4 | 150 | 100 | 1.07×104 | 2900 | 2.2 | JW-RPP-280/360/500 |
| ZJC-300 | 5×10-2 | 3.7×10-4 | 300 | 150 | 7×103 | 2900 | 4 | JW-RPP-500 |
| ZJC-600 | 5×10-2 | 3.7×10-4 | 600 | 200 | 4.5×103 | 2900 | 7.5 | Lubricant Oil Brand: No.1 Mechanical Vacuum Pump Oil No.1 of Brand of Lubricant Oil mechanical vacuum pump oil |
| ZJC-1200 | 5×10-2 | 3.7×10-4 | 1200 | 250 | 5.3×103 | 2900 | 11 | |
Note: Based on the characteristics of this pump, and depending on different usage conditions, our company can design and provide customized units of various types of this pump model to meet users' specific requirements for vacuum equipment performance and operating conditions.
1. The pumping speed refers to the maximum pumping speed measured at the Roots vacuum pump inlet within the pressure range of 6650Pa to 2.66Pa when using the recommended backing pump.
2. The ultimate pressure refers to the lowest stable partial pressure of air measured at the pump inlet using a compression vacuum gauge after sufficient pumping, with the pump port sealed and no air intake, under the condition of using the recommended backing pump and without any additional containers.
3. The performance levels listed in the above table were obtained under the condition of using the recommended backing pump. Users may select different backing vacuum pumps based on specific circumstances, but the main performance indicators may vary accordingly.
4. Based on the characteristics of this pump, and depending on different usage conditions, our company can design and provide customized units of various types of this pump model to meet users' specific requirements for vacuum equipment performance and operating conditions.
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