FSA100 Rev1206
6
GENERAL DESCRIPTION
Components
The AutoFoam system consist of the following components (Refer to Figure 1):
Control Module
Metering Valve Assembly
Eductor
Discharge Flow Sensor(s) and Sensor Housing(s)
Summing Device
Cables
Control Module
The control module is panel mounted and has a front bezel measuring 4.25 by 4.25
inches. All controls and indicators are located on the front of the control module.
(Refer to Controls and Indicators.)
Metering Valve Assembly
The metering valve assembly includes a foam metering valve, two paddlewheel
type flow sensors, and mounting flanges. The metering valve has a position transducer
and it is internally calibrated for flow. The meter valve housing is brass. The flow
sensors are in stainless steel mounts.
Eductor
The eductor is located in a water by-pass loop and foam is sucked through it into
the suction side of the pump. It is made of stainless steel or brass.
Discharge Flow Sensor(s)
The discharge flow sensor is mounted on the pump discharge manifold. It provides
an input signal to the summing device that is proportional to the discharge flow. If the
multiple discharge flow sensor option is installed discharge flow sensors will be
mounted at each discharge.
Summing Device
The summing device is connected between the control module and the flow sensors.
It contains the potentiometers used in flow calibration and provides flow datd to the
control module.
Cables
Interconnecting cables are provided. (Refer to Install Cables.)
