Riello SP20-DN32 Manuel D'utilisation Et D'entretien page 49

Fig.8
Fig.9
• The half of the gasket for which it is possible to correctly
place all Plug-In® tabs in their corresponding notches, can
be mounted as described in 5.7.1.
• On the other half, use shears to remove all the Plug-In®
tabs and, if present, all the connecting bridges between the
diagonal and the sealing ring (Fig.9 b).So, following the pro-
cedure described in point 5.7.3, attach the gasket, exclud-
ing the sealing rings.
Intermediate turning plate
(for multi-pass heat exchangers only) and end plate
1. Models equipped with Plug-In® tabs inside the sealing rings:
using shears, cut the Plug-In® tabs inside the sealing rings
(Fig. 9 c) corresponding to the closed holes only. Then, fol-
lowing the procedure described in point 5.7.3, attach only
the connecting bridges between the diagonal and the ring.
2. Models without Plug-In® tabs inside the sealing rings: no
cutting is necessary; proceed as described in point 5.7.1.
NOTE: On some models it might be necessary to remove all
the Plug-In® tabs (not only those inside the sealing rings). In
this case, if permitted, remove the entire gasket.
NOTE: For the DN200 models it is recommended, if permit-
ted, to attach the entire gasket.
5.7.3 - Gluing
• Using the appropriate epoxy glue, spread a strip of glue (2-3
mm) onto the plate in the gasket slot.
• Leave to dry for 5 minutes in a suitably ventilated room,
then position the gasket on the plate, making sure that it is
perfectly contained in the slot and that there is no excess
glue escaping from the slot.
• Place a counterweight on the glued plates (without defor-
ming the plastic), ensuring that the whole gasket is evenly
compressed for at least 2 hours.
ENGLISH
EN
47