rsbp FLEX C Series, User Manual

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Flameless Explosion Venting Device
–
FLEX
14 35
1
3.3 THE PARAMETERS ENSURING THE SAFE USE OF FLEX ACCORDING TO THE
AT EX CERTIFICATE
All relevant parameters are summarized in the Table No. 5. If any other range of ambient
temperatures is required, the manufacturer should be contacted.
Table No. 5 - The Parameters Ensuring the Safe Use of FLEX
Size
Max. Kst
[bar∙m/s ]
Ambient
temperature
[°C]
FLEX - F1
220
-20 to 60
FLEX - F2
FLEX - F3
FLEX - R1
220
FLEX - R2
FLEX - R3
FLEX - R4
FLEX - C1
300
FLEX - C2
FLEX - C3
FLEX - C4
FLEX - C5
In the event of explosion, FLEX must be inspected by the manufacturer or by a trained
person; they should determine the proper servicing, so that the proper function for the
further safe use is ensured.
3.4 SAFETY ZONE
The area in front of the free space of the flame filter at a distance of 1 - 2.5 m from FLEX
must be defined as the safety zone. The specific value is given in the Technical Data Sheet
supplied with each FLEX device.
No people can access the zone because there is a
danger of noise, smoke and water steam associated with the explosion. It is recommended
that no equipment which could be destroyed in such an event is located in this zone. The
safety zone for the round FLEX is shown in fig. 7, for the rectangular one in fig. 8.
If the operators must regularly work in the close proximity of FLEX, a flat panel or a welding
curtain for the separation of the personnel and the device can be used; the distance from the
FLEX surface must be at least 500 mm. The specific solution must always be approved by
the manufacturer of the FLEX supplier.