D70（1.4-1.8）,70m³/min Output Airflow,2950r/min Speed, 39.2-78.5KPa Output Pressure, Multi-stage Centrifugal Blower

Low Noise Multistage Centrifugal Blower, wastewater treatment air blower

About D series mult-stage centrifugal blower

We are a professional manufacturer of various types of blowers. Our multistage centrifugal blowers, along with supporting motors and accessories, can also be provided with fully equipped control systems. Widely applied in sewage treatment, blast furnace gas supply, coal

washing plants, mine flotation, chemical gas production, vacuum and other fields, the multistage centrifugal blowers can also be used to convey other special gases.

1,Conveying medium: clean air, natural gas, biogas, methane, hydrogen, etc.

2,Material of impeller: casting steel & aluminum alloy

3,Cooling method: air cooling or water cooling

4,Driving method:  belt transmission

5,Application: Water and waste water treatment, vacuum dust cleaning, air knife drying, the flotation and separation, zinc plating and electroplating, oxygen filling, paper making and printing, and air combustion etc. fields.

Specifications

Features

1. Compact structure: Elegant in appearance, stable in operation, and convenient for installation and maintenance.

2. Smooth operation: The high-efficiency impeller is optimized to minimize axial force and corrected static-dynamically for balance, ensuring the whole unit runs smoothly and stably.

3. Low noise: The blower operates without any mechanical friction, and the reasonable blade profile minimizes noise. The noise generated by the multistage centrifugal blower is high-frequency, which can be significantly attenu by obstacles, so there is almost no noise outside the blower room.

4. Bearing lubrication: Grease lubrication is adopted for bearings, improving lubrication conditions and extending bearing service life.

5. Impeller: The impeller features a special composite curve, which reduces internal leakage and improves aerodynamic efficiency and overall unit efficiency.

6. Easy adjustment: The flow rate can be adjusted within a certain range by only using the inlet butterfly valve.

7. Drive mode: Driven by a two-pole asynchronous motor. Different voltage motors can be selected according to the user's power grid conditions.

8. Sealing: Each stage of impeller is equipped with inlet rings, and labyrinth seals are installed between stages and at both ends of the casing to prevent gas leakage.

9. Cooling: Since the impeller compresses gas stage by stage, the temperature of the exhaust casing is much higher than that of the intake casing. Both air cooling and water cooling devices are provided for the exhaust bearing pedestal to extend the service life of bearings.

10. Transmission mode: Coupling transmission is adopted. Different transmission modes can also be selected according to different equipment and processes.

Standard supply of scope

1. Blower main body

2. Inlet muffler (with air filter)

3. Public base for motor and blower(including coupling cover)

4. Inlet manual butterfly valve

5. Motor

6. Pressure gauge

7. Mounting bolts and connection accessories

8. Check valve

About us 

B-Tohin Machine(Jiangsu)Co;Ltd.,a joint venture,was established in 1994 and located in Yixing Environmental Protection Science and Technology Industrial Park,National High Tech Development Zone,China.It is mainly engaged in the production and sales of 3-robe roots

blowers,rotary blowers,screw blowers,air suspension centrifugal blower,magnetic centrifugal blower,gear speed single-stage high-speed centrifugal blower,multi-stage centrifugal blower,fiberglass blowers,stainless steel blowers,vacuum pumps,water pumps and other

products.The products are widely used in environmental protection water treatment,building materials cement,chemical industry,electric power petroleum,steel,metallurgy,mining,printing and dyeing, grain transportation ,new energy and new materials and other industries.The

products are sold all over the country,and exported to many countries and regions.At present,the company has established an annual production and sales scale of over 30000 units(sets) of various type of blowers and pumps.

The company has successfully passed the certification of ISO9001 quality management system certification,ISO 14001 environmental management system certification,ISO 45001 occupation health and safety management system certification and ISO50001 energy

management system certification.The company also has been certified as “High &New-tech Enterprises of Jiangsu Province” for many years.B-Tohin Tech R&D Center has a team of professor level senior engineers,doctoral and master’s students ,and a group of

undergraduate students for scientific and technological innovation.It has established the“Jiangsu Province Energy saving Aerodynamic Equipment Engineering Technology Research Center ”and “Air Suspension Bearing Research and production Center” .At the same time,it

has also obtained the national standard GB/T2.79.22-2011“Product After sales Service Evaluation System”five-star certification,“JiangSu Province Specialized,Refine,Unique and New Small and Medium sized Enterprises”,Mayor’s Quality Management Excellence Award”,

“Carbon Management System Certificate”,“AA level Integration Management System Evaluation Certificate”,and“Enterprise in Compliance with Environmental Protection Equipment Manufacturing Industry Standard.”

As a member unit of the National Blower Standardization Technical Committee,participating in the formulation and revision of multiple wind turbine industry standards,and serving as the main drafting unit. The main products have also passed CE certification for export to the

European Union,as well as multiple international certifications such as GOST and BV.