Replacement Of Check Valves - SEKUR SFERA Serie Mode D'emploi

module gasket and the visor seal are not dirty or damaged. If necessary clean or replace them. Insert the
threaded connection of the speech module in the hole placed on the visor and screw again the cap by using
the disassembling tool. Replace the speech module as described in Par. 10.3.

10.7. Replacement of check valves

Remove both the check valve assemblies from the inner mask, and afterwards the valves from their seats;
check their integrity and that they are clean. If necessary clean or replace. Assemble the valves on their seats
first, checking the disk of the valves remains flat. Afterwards replace the seats onto the inner mask paying
attention that the rubber stems of the valves are directed outwards the inner mask.
10.8. Replacement of the inspiration valve on the filter connector in the Sfera SP/A ASB and of the connector
seals. Remove the ferrule in the intenal part of the mask, the gasket and the seal in expanded material. From
the external side, remove the filter connector with the inspiration valve and the other seal in expanded
material. Replace the inspiration valve on the filter connector. Afterward rebuild the assembly inserting the
components in the correct order. At the end, tighten the ferrule until it stops.
11. Reference numbers for orders, spare parts, accessories
Article
SFERA mask (Rubber)
SFERA SIL mask (Silicone)
SFERA SP/A mask (Rubber)
SFERA SP/A SIL mask (Silicone)
SFERA SP/A ESA mask (Rubber)
SFERA SP/A ESA SIL mask (Silicone)
SFERA SP/A ATEX mask (Rubber)
SFERA SP/A ATEX SIL mask (Silicone)
SFERA SP/A ASB mask
SFERA SP/A ASB SIL mask(Silicone)
Spare parts
Head harness complete with buckles
Harness (rubber only)
Buckles and pins for the harness
Neck strap with buckles and bolts
Visor
Frame and screws
Threaded connector, protective grid, gaskets SFERA
Threaded connector, protective grid,
gaskets SFERA SP/A and SFERA SP/A ESA
Exhalation valve assembly SFERA
Exhalation valve assembly SFERA SP/A and
SFERA SP/A ESA
Protective grid (5 pcs) SFERA
Protective grid (5 pcs) SFERA SP/A and
SFERA SP/A ESA
Faceblank (Rubber)
Faceblank (Silicone)
Speech module with o-ring
Check valve assembly (10 pcs)
Set of gaskets SFERA SP/A and SFERA SP/A ESA
21
Code
4333.3005
4333.3002
4333.3004
4333.3001
4333.2026
4333.2024
4201.0659
4201.0660
4344.2066
4344.2067
Code
4201.0010
4201.0005
4201.0085
4201.0115
4201.0105
4201.0000
4201.0040
4201.0050
4201.0060
4201.0055
4201.0051
4201.0052
4201.0095
4201.0090
4201.0020
4201.0070
4201.0065