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Centrifugal Blowers, Centrifugal Fans, Centrifugal Air Blowers, Industrial Blowers, ID Fans, FD Fans, SA Fans, DIDW Fans, Boiler ID FD Fans, Tube Axial Fans, Tube Axial Blowers, Heavy Duty Industrial Blowers, High Pressure Blowers, Backward Curve Blowers, IS Testing Blowers, Manufacturer, Exporter, Supplier, Pune, Maharashtra, India

Manufacturing High Efficient And Heavy Duty Fans And Blowers:


Centrifugal Fans & Blowers

Electromech Technical Services are manufacturing heavy duty centrifugal fans and blowers. Requirements made of heavy duty fans vary from industry to industry. Best Quality is achieved by proper Quality checks right from material purchasing to final testing of air blowers. Our complete range of centrifugal air blowers confirms to Bureau of Indian Standard (BIS) specifications and relevant test certificate are provided at the time of final inspection and testing of blower.

Centrifugal Blowers and Industrial Blowers are same is in a designed and supplied by Electromech technical services are highly efficient, proven, reliable & sturdy. Electromech Technical services is master in designing and manufacturing customized fans and blowers Saving energy and environmental protection are two requirements which fans builders must also need. Fans handling hot gases are therefore insulated and if necessary installed in ventilated noise reduction booths and not just for reason relating to the process, but in order to reduce the radiation of heat and noise Electromech Technical Services manufacturing and designing facilities, we supply a wide range of fans and blowers that are used for controlling and reducing pollution in diverse industries. We, at Pune, India manufacturers and supplies blowers, centrifugal blower, tube axial fan, high pressure fans & blowers, bifurcated tube axial fan, tubular centrifugal fan, paint booth fan, furnace fans & blowers, id fan, fd fan, multistage centrifugal fan, boiler fan, airfoil blade fans etc.

Our fans and blowers act as perfect exhaust equipment for fume, smoke, dust, corrosive atmosphere in furnaces, boiler, ovens and cement plants. They are used for the purpose of pneumatic conveying, high air volume applications and exhaust processes in diverse industrial applications such as steel plants, cement plants, power plants, pulp and paper mills, sugar mills, waste water treatments, mines, process plants and others.

Fans and blowers provide air for ventilation and industrial process requirements. Fans generate a pressure to move air (or gases) against a resistance caused by ducts, dampers, or other components in a fan system. The fan rotor receives energy from a rotating shaft and transmits it to the air Fan and blower selection depends on the volume flow rate, pressure, type of material handled, space limitations, and efficiency. Fan efficiencies differ from design to design and also by types. Typical ranges of fan efficiencies are given in the table.

Fan Testing : Fan are tested for air performance as per standard IS 4894, BS 848



Fan Efficiencies :

Type of fan

Peak Efficiency Range

Centrifugal Fan

Airfoil, backward curved/inclined

79-83

Modified radial

72-79

Radial

69-75

Pressure blower

58-68

Forward curved

60-65


blowers blowers blowers blowers


Types Of Fan
  • High Volume Limit Load Blowers (SISW)
  • High Volume Limit Load Blowers (DIDW)
  • Medium Pressure Blower (Backward curve blade/ Self cleaning blade/ Straight radial blade)
  • Low Pressure Blower
  • High Pressure Blower
  • ID/FD Fan
  • Axial Fan
  • Furance Fan

Electromech Technical Services centrifugal blower moc of

1. MS-
2. SS- 304 / SS-316
3. Aluminum

4. Hardox
5. Sail Hard


Salient Features:

1 Fans can be designed base upon dynamic Load factor and site condition considering Altitude of the factory
2. Electromech Technical services. Impellers are Dynamically Balanced.
3. Easy Maintainability
4. Low Power Consumption
5. High Efficiency
6. Customized Drive arrangement
7. Capacity and Pressure is tested according to the Indian standard Specification No:-4894- 1968.
8. Providing Inlet / Outlet Damper
9. Drain Plug and Inspection window provided


Extensively Used in:
  • Industrial furnaces.
  • Boilers.
  • Foundry Coupols Furnace.
  • Cement Factories.
  • Gas & oil firing.
  • Extraction Drying.
  • Water treatment plant's.
  • Sewage treatment plants.
  • Ore flotation.
  • Glass blowing.
  • In textile mills for humidification.
  • In many other application.

blowers blowers blowers blowers


Capacity

Electromech Technical Services High Pressure Centrifugal Blowers Suitable for material handling combustion and other various applications. Efficiency Ranging From 70% tO 80%. 2,50,0000 m3/hr. Pressure 1500 mm WG Single Stage.


Selection of the blower Direction


Inspection and Testing

Following test certificates are provided along with Blower
1. Impeller Wheel Balancing Certificate.
2. Operating characteristics Curve showing the blower performance at different values of static pressure.
3. Blower noise level at operating point.
4. Statically and Dynamically balance as per SO-G 6.3 Std specification .



Electromech Technical Services Centrifugal Blower Constructions

Housing.
The housing forms the smooth interior of the fan due to the rolled scroll method of manufacture. The housing consists of MS sheets of welded construction stiffed with MS sheets of welded construction stiffed with MS angles wherever required . The housing has on its front side inlet a cover plate to facilitate easy fixing and removal of impeller from shaft. Inlet and outlet flanges are provided on the housing to facilitate easy connection of the fan to the system.

Impeller.
The Impeller have deep, wide blades most efficient and very rigid. The rotors are of welded construction. The material used is usually steel plate. Rotors are statically and dynamically balanced. Cast iron hub is bolted to the rotor.

Drive. Single Inlet, Single Eidth fan from size 2" diameter to 36½" diameter can be directly driven with thye rotor overhung on the motor shaft. All other SISW and DIDW fans can be operated by direct drive through flexible coupling.

Bearings.
Electromech Technical Services fan bearing are of several types for various classes of work, but generally of Double Row self aligning type ball bearings of adequate size.



Backward Curve Centrifugal Blower Catalogue

P

1

2

3

4

6

8

1

1

1

2

2

2

3

3

4

4

5

M

Flow in Cubic Feet Per Minute at NTP

0

7

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1

8

5

4

 

 

 

 

 

 

 

 

 

 

 

 

 

1

3

1

1

8

6

3

2

2

1

 

 

 

 

 

 

 

 

2

6

3

2

1

1

6

5

4

3

3

 

 

 

 

 

 

 

3

8

4

3

2

1

1

1

7

5

4

3

 

 

 

 

 

 

5

1

7

5

4

3

1

1

1

9

7

6

5

 

 

 

 

 

7

1

1

7

5

4

3

2

2

1

1

9

8

7

 

 

 

 

1

2

1

9

7

5

4

3

2

2

1

1

1

1

9

 

 

 

1

2

1

1

9

6

5

4

3

2

2

1

1

1

1

9

 

 

1

3

2

1

1

8

6

5

4

3

2

2

1

1

1

1

 

 

2

4

2

1

1

1

7

6

5

4

3

2

2

2

1

1

1

1



Electromech Technical Services Fan and Blowers Design and Selection Criteria :

Precise determination of air-flow and required outlet pressure are most important in proper selection of fan type and size. The air-flow required depends on the process requirements; normally determined from heat transfer rates, or combustion air or flue gas quantity to be handled. System pressure requirement is usually more difficult to compute or predict. Detailed analysis should be carried out to determine pressure drop across the length, bends, contractions and expansions in the ducting system, pressure drop across filters, drop in branch lines, etc. These pressure drops should be added to any fixed pressure required by the process (in the case of ventilation fans there is no fixed pressure requirement). Frequently, a very conservative approach is adopted allocating large safety margins, resulting in over-sized fans which operate at flow rates much below their design values and, consequently, at very poor efficiency.

Once the system flow and pressure requirements are determined, the fan and impeller type are then selected. For best results, values should be obtained from the manufacturer for specific fans and impellers. The choice of fan type for a given application depends on the magnitudes of required flow and static pressure. For a given fan type, the selection of the appropriate impeller depends additionally on rotational speed. Speed of operation varies with the application. High speed small units are generally more economical because of their higher hydraulic efficiency and relatively low cost. However, at low pressure ratios, large, low-speed units are preferable.



Forward Curve Centrifugal Fan

The forward curve centrifugal fan travels at a relatively slow speed and generally is used for producing high volumes at low static pressure.
(Available four different models with various sizes)
Very Low Pressure High Volume
(Range 1000 - 10,00,000 CMH, Pressure 40 - 200 mm wg)



Backward Inclined Fan

Backward inclined fans travel about twice the speed of the forward curved fan as previously indicated by the velocity vector diagram. The normal selection range of the backward inclined fan is approximately 40-85% of wide open CMH Maximum static efficiency of about 80% generally occurs close to the edge of its normal operating range. Generally, the larger the fan the more efficient for a given selection.

The magnitude of surge for a BI fan is greater than for an FC fan. Advantages of the BI fan are higher efficiency and nonoverloading power curve. The power curve generally reaches a maximum in the middle of the normal operating range, thus overloading is normally not a problem.Inherently stronger design makes it suitable for higher static pressure operation.
( Available Eight different models with various sizes)
1. Low pressure High Volume - ( Range 1000- 850000CMH, Pressure 150 - 400 MM WG)
2. Medium pressure Medium Volume - ( Range 300- 900000CMH, Pressure 150 - 900 MM WG)
3. High pressure Low Volume - ( Range 100- 900000CMH, Pressure 300 - 1600 MM WG)



Radial Type Blade profile

(Available two different models with various size)
High Pressure High Volume for low noise level
(Range 5000 - 6,00,000 CMH , Pressure 50 -200 MMWG)



High Pressure Blower

ELECtrOMECH TECHNICAL SERVICES Manufacturing High Pressure Blowers lead the industry high efficient, stable performance and overall customer value. High pressure blower are used in a variety of processes and environmental applications where Low Volume and high pressure are required.



Capacity : 100 to 250000m3 / Hour
Static Pressure : 6 to 1500 mm of WC

Applications :

  • Gas Handling Systems
  • pneumatic conveying system
  • Combustion system
  • Numerous high pressure systems.
  • Fuel System
  • Used For Furnaces
blowers

Induced Draft Fan (ID Fan) / Forced Draft Fan (FD Fan)

Electromech Technical services has a huge experience in manufacturing Induce Draft and Force Draft Blowers. We are continuously supply the ID Fan and FD Fan boilers manufacturer along with OEM'S. We also supply to the end users and offer our consultancy in selection of appropriate ID Fans and FD Fans. Special Care is taken in manufacturing of the impeller (rotating part). All the impellers are statically and dynamically balanced on machine. Balancing and fan performance certificate is provided along with the blower. Fan are tested for air performance as per standard IS 4894, BS 848 Some of the Induced Draft Fan and Forced Draft Fan runs at an efficiency of as high as 90%.

Features of "Electromech Technical Services Make" ID Fans
1 Fans can be designed base upon dynamic Load factor and site condition considering Altitude of the factory
2. Electromech Technical services. Impellers are Dynamically Balanced.
3. Easy Maintainability
4. Low Power Consumption
5. High Efficiency
6. Customized Drive arrangement
7. Capacity and Pressure is tested according to the Indian standard Specification No : 4894 - 1968.
8. Providing Inlet / Outlet Damper
9. Drain Plug and Inspection window provided

Depending on the fan inlet air temperature id fan drive is chosen. It could be either
1. Direct Drive Blower / Fan - Suitable for ambient temperature.
2. Direct Coupled Blower / Fan - Suitable for high air temp.
3. Belt Driven Blower / Fan - Suitable for higher air temp.

Boilers Fans - ID,FD & SA Fans manufactured by us.
Efficiency Range from 70% to 82% For 1 TPH to 55 TPH Steam Boilers.


blowers blowers blowers blowers


Tube Axial Fan

Tube axial fans are used where high volume of air and power consumption is delivered at substantialy low pressure. Typical application of these fans is in factories and HVAC application. Electromech Techinical Services make tube axial fan impellers are made out of aluminium casting. Special care is taken during machining and Balancing of fans. This ensures smooth operation with reduced noise and vibration. Motor mounting can be direct or pulley drive based on customers requirement. Along with our standard tube axial blowers /fans, we also manufacture axial blowers for special application such as at high temperature and with S.S. Fan and body.

Wheel Dia : 300 to 2000 mm
Capacity : 1600 to 120000 cfm
Pressure : 5 to 50 mm wg



Salient Future
  • Cost effective
  • Large Air Volume
  • Low pressure consumption
  • Easy to installed
  • Low maintenance

blowers blowers


Standard Catalogue for Tube Axial Fan

FAN Size

Speed

Motor Capacity (H.P.)

Air Delivery in CFM at static pressure in mm of wg. As given below

Inches

mm

rpm

Direct Drive

V-Belt Drive

Free Delivery

5mm

10mm

15mm

20mm

25mm

35mm

12

305

2880

0.5

0.5

1600

1400

1200

1000

700

-

-

 

 

2880

0.5

0.5

1900

1500

1350

1200

1000

600

-

15

380

1420

0.25

0.25

2050

1950

1600

1450

950

-

-

18

455

1420

0.5

0.5

3050

2850

2600

2250

1950

-

-

 

 

2880

1.5

1.5

5500

4500

3500

3000

2500

2000

1800

24

610

1420

1

1.5

6500

6400

5500

4650

3200

-

-

27.5

700

1420

2

3

10600

10500

10200

8200

7600

5850

-

31.5

800

940

1

1.5

10500

9350

7600

5850

-

-

-

 

 

1420

5

5

16000

15400

14600

13450

12300

11400

8150

36

915

940

3

3

19500

17500

15400

12000

10000

-

-

 

 

1420

7.5

7.5

26000

24500

23100

21600

20000

19000

17500

39.5

1000

940

3

3

21100

19300

18150

15800

13450

-

-

47.5

1200

720

5

5

26600

25200

22800

17600

-

-

-

 

 1500

940

7.5

7.5

35700

33900

32800

31000

29200

26300

18700



Plug Fan For Furnaces

Plug fans are mainly used for furnaces, ovens for dry air circulation. We manufacture plug fans having capacity above 25000 cfm against the temperature upto 800 deg c and suitable for more working life.

Qulity :
We checked and satisfactory trials ensure the quality of equipment's before supply the equipments. Electromech always has been a priority to give the service after sales We are providing following certificates of the equipments
• Internal Inspection Report
• Quality Assurance plan
• Geared Motor Routine Test Certificate.
• trial certificates
• Raw material Test Certificates etc.



Quality Control and Inspection
All the manufacturing , Fabrication and machining of the equipments is carried out as per relevant Indian / International standard. The quality control personal check every product as per relevant Quality Assurance plans procedures before dispatched.
We provide excellent reliable sales and service.