FoamJet FJ xxxT series is a digitally controlled direct injection balance pressure (BP) foam proportioning system used to maintain selected constant foam-water proportion regardless of water flow and pressure fluctuations. The system accurately delivers foam concentrate from 1 % to 8 % through the flow meter, el. metering valve and check valve, directly into the water discharge stream.
The system uses a High-Performance Rotary Gear Foam Pump with brass housing, bronze alloy rotors, oversized roller bearings – sealed for life, timing gear which allows dry-running without damage (no rotor contacts) and other high-quality industrial components. The pump is self-priming and can pump water or different viscosities of Foam. The pump can be Hydraulic or PTO driven.
A special el. metering valve precisely adjusts the amount of foam concentrate injected. All excess foam concentrate is returned back to the foam tank via the differential relief valve using a closed loop system. The heat exchanger alleviates the heat build-up while circulating foam concentrate around the foam pump from discharge back to suction. Using a heat exchanger eliminates the possibility of aerating of the foam that returned to the on-board foam tank, and allows usage of foam concentrates from an external source in the event when the on-board tank is depleted, or a dis-similar foam concentrate is required.
The unit standardly uses a large 7” TFT LCD unit for easy overview and control over all functions of the system.
FoamJet xxxxT series can be used as a stand-alone system or as a part of the MMX system connected via CAN bus to the other MMX devices. Several remote LCD display control units can be connected to control the foam proportioning on different locations e.g., in the driver’s cabin.
The maximum foam concentrate delivery in L/min varies by the pump and configuration selected with models available ranging from a max. of 100 L/min up to max. 1800 L/min.
Performance data / Operating Range / Delivering Range
Foam pump can be mounted in any of the positions shown