Plidco Flange+Repair Ring Manual Del Usuario página 6

9. Once the PLIDCO Flange+Repair Ring is installed on the flange, sealant injection is required. If
the leak is stopped from around the flange face, gas or fluid can or will escape through the flange
bolts. See the next section, Sealant Injection, to complete installation.
Listed below are the four general sealant types used:
CURING FIBROUS: A sealant that contains natural or synthetic fibers that are added to help bridge
large gaps while trying to seal leaks. The sealant cures through one or a combination of the following
processes: heat, pressure, air contact, or moisture contact. This must be injected directly and not
through a buttonhead fitting. The fibers clog up the buttonhead and require extremely high pressure to
inject. The buttonhead also increases the injection time and could cause the sealant to start curing
before the PLIDCO Flange+Repair Ring has been completely filled and possibly cause issues.
CURING NON-FIBROUS: A sealant that contains no natural or synthetic fibers. Typically, it comes in a
liquid, paste, or powder form. The sealant cures through one or a combination of the following
processes: heat, pressure, air contact, or moisture contact. This can be injected through a buttonhead
fitting but for large volumes and faster injection times it is recommended to be directly injected. The
buttonhead also increases the injection time and could cause the sealant to start curing before the
PLIDCO Flange+Repair Ring has been completely cured and possibly cause issues.
NON-CURING FIBROUS: A sealant that contains natural or synthetic fibers that are added to help
bridge gaps while trying to seal gaps or added as a filler. The sealant does not cure and can be
reinjected after some time if another leak appears. If the PLIDCO Flange+Repair Ring is temporary and
going to be removed in a short amount of time, this is the preferred sealant as it is easy to clean off of
the PLIDCO Flange+Repair Ring, and flanges. This must be injected directly and not through a
buttonhead fitting.
NON-CURING NON-FIBROUS: A sealant that contains no natural or synthetic fibers. The sealant does
not cure and can be reinjected after some time if another leak appears. Also, if the PLIDCO
Flange+Repair Ring is temporary and going to be removed in a short amount of time, this is the
preferred sealant as it is easy to clean out and off of the PLIDCO Flange+Repair Ring and flanges. This
is typically a PTFE based sealant. This can be injected through a buttonhead fitting but for large
volumes and faster injection times it is recommended to be directly injected.
Sealant Injection on a Non-Active Leak
1. Select the proper type of sealant from above for your application.
2. During installation of the PLIDCO Flange+Repair Ring, make sure to have one sealant injection
port as close to the top as possible. This will insure the annulus of the PLIDCO Flange+Repair
Ring is completely filled with sealant as all the air or liquid is pushed out of the top of PLIDCO
Flange+Repair Ring. (See Figure 5)
3. Open all the sealant injection ports slightly. Remove all the pipe plugs from connections that don't
have sealant injection ports. Leave the bottom sealant injection port that is being used first closed.
Figure 4 shows the correct orientation for closed and open sealant injection ports.
4. Connect a sealant barrel to the closed sealant injection port on the bottom of the PLIDCO
Flange+Repair Ring. If clearances are an issue, use the flexible hose adapter. Start to inject
Sealant Types
Sealant Injection
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