23 Year Industrial Explosion-Proof Manufacturer

+86-15957194752 aurorachen@shenhai-ex.com


Explosion Proof Fan/

Explosion Proof Centrifugal Fan B4-72

Type:Explosion Proof Centrifugal Fan


Ex Mark:ExebIICT6Gb,Ex db IIBT6 Gb,Ex db IICT6 Gb,Ex tbIIICT80℃Db

IP Rating:IP66

Model Number:B4-72


Place of Origin:Zhejiang, China

Product Weight(kg):120

  • Product Details
  • About Us
  • FAQ
  • Packing & Delivery

Technical Parameter

explosion proof centrifugal fan b4-72-6

Explosion proof signDegree of protectionCable outer diameterInlet thread
Ex db IICT4 Gb
Ex tb IIIC T135℃Db
NPT1 1/4

Product Features

1. There are four drive modes of fans: A, B, C and D: A drive is used for No2.8~5, and C drive is used for No6. C drive and D drive are used for No8~12,
No 16~20 adopts B type transmission;

2. Fans № 2.8A~6A are mainly composed of impeller, casing, air inlet, motor and other parts. In addition to the above structures, No6C and № 8~20 also have drive parts;

3. Impeller: It is composed of 10 backward tilting machine airfoil blades, curved wheel covers and flat rear discs, and is made of steel plate or cast aluminum alloy. After dynamic and static balance correction and overspeed operation test, it has high efficiency,
Stable and reliable operation, good air performance;

4. Casing: It is made into two different types, among which, the No2.8~12 casing is made into a whole and cannot be disassembled. The No16~20 casing is made into three open type, which is divided into two halves horizontally
The half is vertically divided into two halves along the centerline and connected with bolts, so that the impeller can be put in or taken out during installation and maintenance;

5. Air inlet: it is made into an integral structure and installed on the first side of the fan. The section parallel to the axial direction is a curve shape, which can make the air flow enter the impeller smoothly with less loss;

6. Transmission: composed of main shaft, bearing box, rolling bearing, pulley or coupling;

7. Steel pipe or cable wiring, and grounding screws are set inside and outside the motor housing;

explosion proof centrifugal fan b4-72-7 explosion proof centrifugal fan b4-72-8 explosion proof centrifugal fan b4-72-9

Applicable Scope

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.

company profile-2 sample room our certificateexhibition

Q: Are you factory or trading company?
A: We are a factory 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.

Q: What certificates do you have?
A: We have passed ATEX, IECEx, and with a lot of National Patents.

Q: What place are your products used in?
A: 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.

Q: Can I have a sample order?
A: Yes, we welcome sample orders to test and check quality. Mixed samples are acceptable.

Q: Can youaccept customized?
A: Yes. Please inform us and confirm the design firstly based on our sample.

packing delivery



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