Figure 2-8.Seawater simplex strainer.
The duplex strainer, shown in figure 2-9, consists
A selector valve is arranged so that, with the
of two removable baskets located in parallel at the
handle in one position, seawater flows through one of
seawater inlet. Seawater flows into the top of one bas-
the baskets, leaving the other basket accessible for
ket and out through the perforated sides to the outlet.
removal and cleaning. When the valve handle is
This arrangement allows maintenance to be performed
switched to the alternate position, the flow is shifted
on one basket while the system is in operation.
over to the other basket.
Figure 2-9.Seawater duplex strainer.