? Model parameters ：
double level The series roots blower is a customized roots blower with higher pressure than the ordinary three blade roots blower and is easy to use. Please refer to the following parameters. The specific parameter selection needs to be determined by technicians according to the actual situation.
Table of Selection Parameters of Two stage Series Roots Fans model
Two-stage series Roots blower) | Air volume range
（m?/min） | Power range
(kw) | Outlet diameter | Fan weight
（KG） | Pressure range | Voltage |
| Sr50 | 0.65-2.13 | 0.75-4 | DN50 | 87-119 | 9.8kp-58.8kp | 380V |
| Sr65 | 0.94-3.00 | 0.75-5.5 | DN65 | 98-145 |
| Sr80 | 2.34-5.22 | 2.2-7.5 | DN80 | 156-200 |
| Sr100 | 3.25-8.05 | 2.2-15 | DN100 | 190-297 |
| Sr125 | 5.35-11.7 | 3-18.5 | DN125 | 285-401 |
| Sr150 | 10.37-27.15 | 7.5-45 | DN150 | 471-706 |
| Sr175 | 19.65-38.67 | 11-75 | DN175 | 601-1090 |
| Sr200 | 27.65-57.14 | 15-90 | DN200 | 975-1490
|
? Principle introduction ：
The two-stage Roots blower is a device composed of two Roots blowers in series. There are two three blade rotors with opposite directions inside each fan box. Each three blade rotor is supported by two bearings. Using a pair of high-precision synchronous gears, the relative position of the two rotors remains unchanged all the time, and a certain clearance is maintained between the rotors and between the rotor and the box, Non contact rotation: driven by the synchronous gear of the side box, the rotor separates the air inlet from the air outlet with the help of the meshing of the two rotors, completing the transfer process of the closed gas between the box and the rotor from the suction side to the discharge side. During the rotation, the gas in the working chamber is pushed from the air inlet to the air outlet without internal compression. There are tiny gaps between rotors, between rotors and boxes, between rotors and wallboards, so there is no friction or contact wear in the working chamber.
? Application field:
The two-stage series Roots blower is widely used in the pneumatic conveying system of ceramics, building materials, paper making, electricity, petroleum, chemical industry, textile, aquaculture, sewage treatment, food and other industries.
? Factory photo:
Because each batch of customized machines uses different working conditions, the customized shapes are different. The specific size and shape to be customized need to be communicated with the technicians. It is recommended that you send us the parameters and customization requirements before purchasing, and the technicians can customize them for you according to the working conditions. Other profiles Double stage series Roots blower Viewable
? Ordering instructions:
When you need to purchase a two-stage series Roots blower, please tell us the following items in detail:
1. Use of Roots blower: sewage treatment, aquaculture, pneumatic conveying, etc
2. Specifications of Roots blower: caliber, required air volume, pressure rise, etc
3. Transmission medium: air, gas, biogas and other corrosive gases
4. Equipment requirements: form, cycle number, voltage, single-phase or three-phase
5. Equipment service conditions: indoor or outdoor, ambient temperature
6. Fan accessories
7. Color of Roots blower (with or without specified color
8. Note: the allowable range of specified flow and pressure rise (vacuum degree) is ± 5%
Welcome to purchase our company's fans and put forward valuable suggestions
Address: Chengdong Industrial Park, Zhangqiu District, Jinan, Shandong
Tel.: 0531-83663588
24-hour sales service hotline: 13181700788
Word tags: Roots Blower Roots blower
