Flameless Explosion Venting Device
–
FLEX
30
35
1
ISO 7090, all sized M8. If they have been damaged or lost, they can be replaced with
the new ones. The connections must all be tightened with a tightening torque 15 Nm.
9) A new membrane (a spare part from the supplier) can be sealed from the underside
to this prepared FLEX, using the silicone sealant suitable for this application. The
identical flange gasket supplied by the company RSBP spol. s r.o. can also be used;
the gasket is commonly used between the membrane and the flange on the
technology. Please note that the membrane must face with the signalling device
towards the FLEX entry and the signalling device must be wired properly.
10) Further installation is identical with the new FLEX, i.e. the same as the procedure
detailed in chapter 4.
FLEX, C-Series:
1) Stop the production process in the protected technology immediately.
2) Let FLEX and its surrounding cool down to the acceptable level, so that it is possible
to work in the vicinity of FLEX as well as with the actual device.
3) In the event of explosion, FLEX must be dismounted from the equipment.
4) After the dismounting, check whether no visible plastic deformation to the FLEX body
or the lid has occurred and whether its integrity is maintained. If not, the further use of
FLEX is prohibited!
5) Then the entire FLEX must be disassembled. Remove the top lid and pull the flame
filter out under the lid as well as the actual cylindrical flame flited (there are two
cylindrical flame filters in the FLEX devices C4 and C5). Remove the used
membrane. Do not interfere with the low counter nuts, which are located on the
underside of the FLEX cover on the welded threaded rods; have them in the position
set by the manufacturer!
6) All metal-metal interfaces of this series FLEX are fitted with the gaskets of ALSIFLEX
1430 (thickness 10) (see fig. 15). These gaskets must always be replaced.
7) This dismounted FLEX must be thoroughly cleaned and the residue materials after
the explosion must all be removed.
8) This cleaned FLEX can be further repaired and used. First, one sealing ring
ALSIFLEX 1430 (thickness 10) should be inserted into the body. The new cylindrical
flame filter should be put on this gasket; the filter should be turned to the position that
the end of the mesh installed in the filter with pins is opposite the membrane entry.
Again, place the ALSIFLEX 1430 sealing ring (thickness 10) onto the cylindrical flame
filter. A new flame filter should be put onto this layer under the lid and another
