B4-72 Series Explosion Provention Centrifugal Fans

• Blade Material: Cast Iron
• Electric Current Type: AC
• Mounting: Duct Fan
• Certification: UR, CE, CCC
• Size: 2.8-6
• Rotation: 2900rpm/1450rpm
• Model NO.: B4-72
• Voltage: 110V/220V/380V/440V
• Transport Package: Carton
• Specification: CE
• Trademark: OEM
• Origin: China
• HS Code: 8414593000
• Production Capacity: 1000PCS/Month

Product Description

product Description:

B4-72 Series explosion prevention centrifugal fans meet the requirements of GB3836.1-2000Electrical 
apparatus for explosive gas atmospheres. Part 1:General requirements,GB3836.2-2000Electrical apparatus 
for explosive gas atmospheres. Part 2: Flameproof "d"and JB8523-1997Ex fans technical conditions.
The Fans can be used for ventilating in the explosive environment in the flash point below the lowest form of flammable gas,air and their mixtures.
Fans of the documents through product design and product quality inspection center Ex-examination Samples 
have to undergo a rigorous inspection and testing requirements, and made "explosion-proof certification".
Explosion sign of the fans is "Ex d II BT4", the fans can be used For the existence II A, II B, T1 ~T4 group explosive mixtures of gases establishments.