OPERATING MANUAL
10-2022
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Replacing the seal in the cover:
Fully open the valve (until you clearly sense that the wedge closure (8) resists further movement; this will seal the
spindle under the flange (7)).
This operation allows you to replace the o-rings in the plug (3) or the whole plug assembly on the pipeline .Clean
the gate valve cover from dirt, sediments and grime.
Disassemble the following in the succession shown below:
the wiper gasket (1);
bayonet lock (2).
Remove
the sealing plug (3) (with the service wrench tool available from the manufacturer).
Clean and moisten the seat in the cover.
Install the new sealing plug assembly (3) or clean the existing one and install its new o-rings.
Install new bayonet lock (2) to prevent secure the plug in place.
Leak test the valve in the CLOSED POSITION to confirm that the sealing has been properly replaced.
The reassembled and positively tested valve will be ready for operation.
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