OMI.EN-PCP001 R01 (Funct. and Maint.Manual n.03 – Fourth edition) Pag.36
9.4.6 Mechanical seal with QUENCH (TEN9)
This kind of seal is part of the single mechanical seals family (see the relative paragraph):
the optional is a threaded hole (quench) used for internal washing itself.
9.4.7 Single mechanical seal (TEN10) for pump mod. 010
9.4.7.1 Disassembling
1. Remove the screws from the outlet flange.
2. Unscrew the two retaining studs.
3. Unscrew and unthread the stator
4. Remove the grub screw from the female drive shaft.
5. Remove the two screws connecting the body of the pump to the closed coupling.