Senseca recently introduced the FF type series flow switch which has applications specifically in the water, oils, gas, food and beverage sectors as well as in general industry where pump protection is required. “Its 200-bar pressure and piston valve seat design make it a unique flow switch for various industry applications,” says Jan Grobler, Managing Director of Senseca South Africa.
The simple mechanical operating principle of the piston valve seat design makes it space-saving and means the flow meter can be installed economically for high unit counts. The meter is practically maintenance free across all applications.
In operation, the flow volume raises a piston (fitted with a magnet) out from a valve seat against a spring force. The stroke causes a change in the magnetic field, where a hermetically isolated Reed switch is actuated and an electrical signal is generated. With spring-assisted stabilisation of the piston, the flow meter can be installed in all positions. The vertical positioning of the Reed switch adjusted at the factory enables recognition of flow rates from about 2% to 60% of the recommended maximum volume.
Grobler says the Senseca FF Flow Switch offers the largest switching value selection and the widest housing spectrum with a valve seat design. It is a cost-effective and low-maintenance flow switch which delivers effective system safety.
The FF series includes housing sizes for nominal pipe widths from DN8 to DN50 and freely selectable switching values from 0.41 l/m. The swift reaction times of less than 100 ms ensure rapid actuation time for applications. An additional feature is the high switching value repeat accuracy with a minimal pressure loss of less than 0.1 bar.
“The FF series of flow switches suit high-pressure cleaning technology applications as they are available in various housing sizes – and they can be used in any sector where water, oils and gas are processed,” Grobler adds. “They offer high efficiency and provide a tamper-proof switching value, offering high system safety,” he says.
When applied in process water in industrial systems, contamination situations often arise due to sediments and other ordinary content in the water. Here, the filtration is a recommended design feature. The FF flow switch enables horizontal flow through the housing where the vertical functional design is highly resistant to water contaminants. This supports the filtration efficiency of the overall system, delivering enhanced safety and functional reliability in such applications.
The flow switch FF can be ordered to meet customers’ specific requirements. There is no switching value drift with the FF flow monitor, an advantage in flow monitoring for heat exchangers in cleaning technology applications with hot water systems.
“We adjust the flow switch to meet specified requirements,” Grobler says, “assuring customers that the application will run the way they want it to. Many industrial applications will benefit from the flow switch FF series, with its flexibility, high accuracy and low costings for flow monitoring applications,” he says.
For more information visit: www.senseca.com/
