March 2024
Safety Guide
DOC.SG.HX.1 Rev. 2
10
Section 5: Safety Instructions for Use in
(Potential) Explosive Atmosphere
5.1 Intended Use
The Hytork XL-Series pneumatic actuators are designed
to comply with the explosion safety requirements in the
Ex-standards EN IEC 60079-0:2018, EN ISO 80079-36,
EN ISO 80079-37:2016 and EN 1127-1:2019. These standards
contain the requirements for non-electrical equipment in
potentially explosive atmospheres.
The actuators comply with the constructional safety type �c”
requirements. The actuators are designed for gas group IIB
or IIC and dust group IIIC applications and are applicable
in temperature classes T6 to T2 depending on model. The
Equipment Protection Level is Gb for gas and Db for dust,
so the actuators can be used in Ex classied hazardous
zones 1/21 and 2/22.
5.2 ATEX Marking
Complete ATEX Marking:
II 2 G Ex h IIB or IIC TX Gb
II 2 G Ex h IIIC TX Db
For surface temperature “TX”, refer to Table 3 in Maximum
Temperatures Section.
Ambient Temperature Ranges (T
amb
):
Standard Temperature: -20 to +100 °C / -4 to +212 °F
Low Temperature: -40 to +100 °C / -40 to +212 °F
High Temperature: -20 to +120 °C / -4 to +248 °F
Tunnel Application: -20 to +250 °C / -4 to +482 °F for 2 hours
Section 5: Safety Instructions in Explosive Atmosphere
Safety Instructions in Explosive Atmosphere
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