4-72/B4-72/F4-72 Centrifugal Fan Anti-Corrosion Centrifugal Fan Explosion-Proof Centrifugal Fan

• Customization: Available
• Material: Aluminium Alloy
• Warranty: 3 Years
• Model NO.: B4-72
• Characteristic: Anticorrosive
• Inlet Thread: NPT3/4, NPT1 1/4
• Electric Current Type: AC
• Customized Support: OEM, ODM, Obm
• Mounting: Free Standing
• Function: Air Circulating or Exhaust Ventilation
• Type: Centrifugal Fan
• Place of Use: Gas Station, Refinery, Spray Booth, Hazardous
• Corrosion Protection Level: Wf2
• Alias 1: Explosion Proof Exhaust Fan, Centrifugal Fan
• Voltage: 220V/380V
• Alias 2: Explosion Proof Blower, Ventilation Fan
• Cable Outer Diameter: 10mm-14mm, 15mm-23mm
• Trademark: Shen Hai
• Origin: Zhejiang, China

Product Description

 

Product Parameters

Explosion proof sign	Degree of protection	Cable outer diameter	Inlet thread
Ex db IIC T4 Gb Ex tb IIIC T135 Db	IP54	Φ10~Φ14 Φ15~Φ23	NPT3/4 NPT1 1/4

Product Description

1. The transmission mode of the fan includes A B. C, D four types: No2.8~5 adopts A-type transmission, No6 has both A-type and C-type transmissions, and No8-12 uses C There are two types of transmission modes in Type D, No 16-20 adopts B-type transmission; 2. Ventilation fans numbered 2.8A-6A mainly consist of impeller, casing, air inlet, motor, and other parts, No6C and No. 8-20 not only have the above structure, but also have a transmission part; 3. Impeller: composed of 10 rear tilting machine airfoil blades, curved wheel covers, and flat rear discs, made of steel plate or cast aluminum alloy. After dynamic and static balance correction and overspeed operation experiments, it has high efficiency, smooth and reliable operation, and good air performance; 4. Housing: Made in two different types, among which: No2.8~12 casings are made as a whole and cannot be disassembled. The No16~20 casing is made into a three open type, which is divided horizontally into two halves. The upper half is vertically divided into two halves along the centerline and connected with bolts for easy insertion or removal of the impeller during installation and maintenance; 5. Air inlet: Made into a complete structure and installed on the side of the fan, with a curved section parallel to the axis, the function is to allow the airflow to smoothly enter the impeller with minimal loss; 6. Transmission: composed of spindle, bearing box, rolling bearings, pulley or coupling; 7. Steel pipe or cable wiring, with grounding screws inside and outside the motor casing;


Applicable Industries: Printing Shops, Construction works, Energy & Mining, Oil Exploitation, Oil Refining, Chemical, Metallurgy, Marine Oil, Platform, Fire Fighting, Oil Tanker
Explosion Proof Sign: Ex db IIC T4 Gb,Ex tb IIIC T135°C Db
Applicable Scope: Zone 1,Zone 2,Zone 21,Zone 22;IIA IIB IIC Explosive Gas Environments

 

1. It is applicable to the places in Zone 1 and Zone 2 of explosive gas environment; 2. It is applicable to the places in Zone 21 and 22 of combustible dust environment; 3. Suitable for IIA, IIB and IIC explosive gas environment; 4. Applicable to T1-T4 temperature group; 5. It is widely used in oil refining, chemical, textile, gas station and other dangerous environments, offshore oil platforms, oil tankers and other places; 6. Indoor and outdoor.

About Us

 

VR

FAQ

A: Are you a manufacturer or trading company? 

Q: We are a manufacturer and provide OEM services. Our main products are explosion-proof lightings, explosion-proof distribution box, explosion-proof cable gland, explosion-proof fans, explosion-proof junction box and anti-corrosion & dustproof & waterproof lights.  

 

A: What certificates do you have?  

Q: We have passed ATEX, IECEx, and with a lot of National Patents.  

 

A: What fields are your products used in?  

Q: They are widely used in petroleum chemical, aerospace, coal electrical power, railway, metallurgy, shipbuilding, medicine, marine, wine-making, fire fighting, municipal, gas station and other industries.  

A: Can I have a sample order? 

Q: Yes, we welcome sample orders to test and check quality. Mixed samples are acceptable.  

 

A: Will you accept customized?  

Q: Yes. Please inform us and confirm the design firstly based on our sample. 

 

Thanks for your visiting and hope to cooperate!! 

($10 free for the first order)

contact us

 
 
Company: Shenhai Explosion-Proof Technology Co., Ltd.
Address: No. 318, Wei15 Road, Economic Development Zone, Wenzhou, Zhejiang, China 

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