Plidco Flange+Repair Ring Manual Del Usuario página 8

9. Repeat step 8 on all sealant injection ports.
10. Remove sealant pump and install pipe plugs into the ends of the sealant injection ports.
NOTE 1: Hydraulic pressure is not the same as sealant pressure. For thicker sealants, higher pump
pressure is required to overcome fluid viscosity, and frictional loses through various orifices and
openings. Sealant pressure will be less than the hydraulic injection pressure monitored at the sealant
injection gun. Sealants are compressible materials and that pressure drops drastically as the distance
from the point of injection increases.
NOTE 2: For active leaks it is not recommended to inject directly into the vents. This is due to internal
pressure that builds up when the sealant barrel is connected. Extreme harm could come to the operator
when disconnecting the sealant barrel under pressure.
NOTE 3: On PLIDCO Flange+Repair Ring fittings that have more vents than sealant injection ports, the
sealant injection ports may be moved to another vent that allows better access for sealant injection.
The unused vents can be plugged with pipe plugs as required per the injection procedure above.
Figure 4
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