GS250 Series,50-100Kpa Pressure, 250 m³/min Airflow,Single-stage High-speed Remote Monitor Centrifugal Blower

 
Remarks:
1.Discharge pressure is designed to 198Kpa(A), the application scope :145-198 Kpa (A) or the pressure ratio ε is 1 . 5 ≤ε≤1 . 9 6 ;
2.Dust content and other solid impurities ≤10mg/m3;
3.The motor must be special one when the sea level is higher than 1000m;
4.It is not suitable for the inlet temperature over 60℃ or outlet temperature over 120℃;
5.The airflow in the above sheet are the value in the condition of 20℃ and 1 atm;
6.Please consult our technical department for the capacity not showed on the catalogue.
7.For model selection of single-stage high-speed centrifugal vacuum pump, please contact the Technical Department of our company.
 

1,Inlet guide vane device
    Compsed of nine vanes, the inlet guide vane device is installed before impeller and its open degree is controlled by an electric operator. When the electric operator receives 4-20mA signal from control panel, it adjusts the vanes' open degree(the value of open degree is both shown on the panel of electric operator and on the control screen) so that the inlet guide vane device can work before gas flows into the impeller aand realize the function of airflow adjustment of 45-100%.
 
2,Volute
     The most  suitable volute runner is adopted for reliable pneumatic performance, high efficiency and for achieving all the multivariate efficiency to 85%.

 
 
 
3,Step-up box
     Helical type step-up gear is equipped.The gare is diffusion hardened and of excellent performance under high-speed rotation and long service life.

 
     Bearing of sliding type with Babbitt metal surface is adopted.The bearing takes lubricant film for supporting its shaft and cooling.It is featured with low friction,high antiknock characteristic,reliable performance and longevity.

 
 
 
4,High efficiency impeller
    The impeller, which is ternary mixed semi-open type, is designed by the three-dimensional theory . The curve for the impeller is selected recurring to simulate 

working condition on computer, and better fitting for the actual flowage of gas. Meanwhile, it reduces the vane deformation caused by centrifugal force and improves the efficiency reliability.
    The advances connection type is adopted for the impeller and high-speed  shaft.Before delivery ,impeller over-speed and dynamic balance tests are taken for ensuring the high performance of blower.
    The material of the impeller is optional, aero-metal or stainless steel or other materials available according to the custom's requests.
 
 
 
 
 

Blower structure
 
 Gs series centrifugal blower features single-stage cantilever,axial inlet and radical discharge structure. Air comes into the suction pipe and the inlet guide vane device from the inlet filter setting.Main driving motor is connected with the coupling and the step-up box.When start,
the step-up gear drive the ternary mixed semi-open impeller to make gas for power,and the gas discharge out through vane-less diffuser and volute chamber.
 

Main characteristics
 
·Good aerodynamic performance: ternary semi-open mixed-flow impeller adopted for not easy to cause vortex and for small airflow loss.
 
·Adjusted by inlet guide vane, the efficiency curve of the unit is flat, and even under non-designed operating conditions,good energy-saving effect can be achieved.
 
·Compact structure,small floor area,easy operation.
 
·The impeller is made of high-strength aviation aluminum alloy, machined by imported five-coordinate linkage machining center with small curve error. It is of reliable pneumatic performance and high efficiency,while it can save15%-25% power comparing with most Roots blowers.
 
·Impeller and speed-up gear are of integral structure, which greatly reduces the mechanical loss.
 
·Helical type speed-up gear adopted for good stability, low vibration, low noise and long service life under high-speed running.
 
·Special tilting pad bearing: through special tilting pads, the product has a high stability when running under high speed.
 
·High degree of automatic control,good reliability.
 

About Us

①In 1994,Yixing Pengde Machinery Co.,Ltd. ( a Sino-Japanese joint Venture) was born,and relocated in the Industrial Park for Environmental SCI and TECH. The following year with company name changed to B-Tohin Machine (Jiangsu)Co.,Ltd.

②Localization of HC blower in 1996

③In 1999,established a joint venture named Tohin Machine Co.,Ltd. with TUTHILL Pneumatics Group (United States).

④Localization and mass sales of BK blower in 2000

⑤In 2004,HC Blower and BK Blower got the honor of “new high-tech product”,and the company was rated as a high-tech enterprise. In the same year,the company passed ISO9001 certification,purchased more than 30000 square meters for new plant and donated 500000 yuan to build the B-Tohin Qinghu Hope Middle School.

⑥In 2009,the single-stage high-speed blower was successfully launched, and BK was rated as famous trademark of Wuxi City and famous trademark of Jiangsu Province.The torch program project of Jiangsu Province and a number of patents were achieved ,also the company’s together-with-heart idea: attentively,sincerely,confidently was put forward.

⑦The company’s BK brand was rated as “China Well-known Trademark” in 2013.

⑧In 2014,the company was identified as “Jiangsu Aerodynamic Research Center” by the Science &Technology Department of Jiangsu Province,and got the ISO14001 certificate.At the same time,Office Automation was put into use successfully.

⑨In 2015,the company introduced a whole blower performance test system.Successfully bid for the 2600 square meters industrial assets in Yixing economic development zone and established Wuxi B-Tohin Blower Technology Co.,Ltd.

⑩In 2016, Sino-Korean joint venture Wuxi B-Tohin & Ace Blower Science and Technology Co.,Ltd. was established. In the same year,air foil centrifugal blower was successfully introduced,and Tohin Vietnam Industry was founded.

⑪In 2017,the company turned on the Internet of things intelligent ,the balance tester of Air Bearing Turbo Centrifugal blower was successfully put into use .The Science and Technology Association of B-Tohin was founded.

⑫In 2018, B-Tohin magnetic suspension centrifugal blower,stainless steel blower and other new products were successfully launched.

⑬In2019,Adopted the ERP platform management in the whole company and passed the assessment of “Informational and Industrialize Integration” in 2019.

⑭B-Tohin screw blower was put on market successfully in 2021.

⑮Launched contract energy management and new type product lease sales in 2022.With a new area of 75000 square meters acquired, the project of design and intelligent manufacturing base of high efficiency blower and office building of B-Tohin started.

The new factory building was successfully completed and relocated.

Main Products