Differential pressure switch for monitoring filters, fans, or air flow in air conditioning and ventilation systems, tested according to the EU Gas Appliance Directive EU/2016/426 and DIN EN 1854
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The FD series is designed according to the special guidelines for liquefied gas technology. All parts in contact with the medium are made of stainless steel 1.4104 and 1.4571.
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This universal pressure switch can be used in general mechanical engineering and the printing machine industry, as well as in pneumatics and hydraulics. SIL 2 according IEC 61508-2
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Pressure switches of the DNS series are suitable for monitoring and controlling pressures in chemical plants, process engineering and any situation where the pressure of aggressive liquids and gases must be monitored. All components of the sensor system are made of highquality stainless steel (1.4571) and welded using the latest methods without filler metals. The pressure sensor is gasket free plasma welded. SIL 2 according IEC 61508-2
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Chemical version (switching housing with surface protection) Pressure switches of the DNS series are suitable for monitoring and controlling pressures in chemical plants, process engineering and any situation where the pressure of aggressive liquids and gases must be monitored. All components of the sensor system are made from highquality stainless steel (1.4571) and welded using the latest methods without filler metals. The pressure sensor is gasket free plasma welded. SIL 2 according IEC 61508-2
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FEMA negative pressure switches detect the pressure difference relative to atmospheric pressure. All data relating to the switching pressure ranges and thus also the scale divisions on the switching devices are to be understood as the difference in pressure between the relevant atmospheric pressure and the set switching pressure. The "zero" reference point on the scale of the unit corresponds to the relevant atmospheric pressure.
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FEMA differential pressure monitors are suitable for monitoring and controlling differential pressures, flow monitoring and automatic control of filter systems. A double chamber system with stainless steel bellows or Perbunan diaphragm detects the difference between the two applied pressures.
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Differential pressure, vacuum and overpressure switches suitable for monitoring neutral and slightly aggressive liquids and non-flammable gases. It can be used as a flow switch fitted across an orifice plate.
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