Air motors are inherently safe for most hazardous duty use since they are non-sparking and run cool. They are well suited for non-hazardous environments as well.
In order to comply with ATEX directives, air motors are listed with letters/numbers that specify the exact criteria the product meets in relation to the directives and so determines the type of environments that they are safe to operate in.
The air motors used in Fawcett equipment are suited for use in ATEX zones 1 and 2 where explosive atmospheres are likely to occur and are marked according to Directive 2014/34/EU.
Here we explain the markings specific to the motors used on Fawcett equipment:
ATEX Marking
Explosion Protection Marking
Equipment Group: “II” is for anyplace other than mines
Equipment Category: “2” is for Zone 1 gases and Zone 21 dusts
Environment: “G” is for gas, vapor, mist and “D” is for dust
Gas Environment
Explosion Protection Principle: “Ex h” is for protection by constructional safety – non-electrical device
Gas Group: “IIC” is for Hydrogen/Acetylene
Temperature Class: “T4” is for 135°C/275°F max. surface temperature of equipment
Equipment Protection Level in Gas: “Gb” is for high level of ignition protection
Dust Environment
Explosion Protection Principle: “Ex h” is for protection by constructional safety – non-electrical device
Gas Group: “IIIC” is for conductive dusts
Temperature Class: “T135°C” is for 135°C/275°F max. surface temperature of equipment
Equipment Protection Level in Dust: “Db” is for high level of ignition protection
Ambient Operating Range Under Hazardous Conditions
Ambient Temperature is (+1°C <Ta< +40°C ) or (+34°F <Ta< +104°F)
*under non-hazardous conditions the ambient range is (+1°C <Ta< +120°C ) or (+34°F <Ta< +248°F)