Prochem Legend SE AD - Manual (Page 24)

OPERATION
LEGEND SE 980059 06/19/03
3-16
CHEMICAL PUMPING SYSTEM
See Figure 17. The chemical is drawn from the
chemical container through a strainer into the flow
meter. The flow meter indicates the rate of chemical
flow.
The chemical then flows through a check valve into a
pulse-powered chemical pump. Next, the chemical
pump injects the chemical through a check valve to
the 3-way selector valve on the control panel. This
valve may turn the chemical flow ON, OFF, or PRIME
the chemical pump.
The chemical then flows through a metering valve to
the solution outlet. This valve controls the rate of flow
of chemical injection into the cleaning solution, which
is indicated on the flow meter.
FIGURE 17