The functional safety of pressure monitoring is becoming increasingly important in industrial process engineering. We have therefore expanded our portfolio with the pressure switches from the manufacturer Fema Honeywell. As a Fema wholesaler, we provide you with SIL-compliant devices for your safety-relevant areas of application.
For potentially explosive atmospheres, Fema provides a range of pressure switches with the type of protection "flameproof enclosure Ex-d" according to directive 94/9 / ATEX. For the Ex-i area, various pressure switch series with gold contact and Ex-i equipment are available under the generic term "simple electrical equipment", which are also part of the current type examination. Type examination certificates according to ATEX and IEC Ex are available.
Table 1 lists the most common pressure switches for use in industrial processes. If you cannot find a suitable pressure switch for your system in this table, please contact us. There are other special designs available.
| Pressure ranges | Medium* | Design | Guidelines for CE | Standards | Type |
| 0.2 mbar - 150 mbar | Air, fuel gases | Differential pressure switch | EU/2009/142/EG | DIN EN1854 | HCD** |
| 20 Pa - 2500 Pa | Air and non aggressive gases | Differential pressure switch | EU/2009/142/EG | DIN EN1854 | DPS** |
| 1 bar - 63 bar | Non aggressive liquids and gases | Mechanical pressure switch | RL 2006/95/EG | DIN EN60730 | DCM DNM |
| 1 bar - 63 bar | Non aggressive liquids and gases | Mechanical pressure switch for Ex areas | ATEX 94/9/EG | DIN EN60730 DIN EN60079 |
Ex-DCM Ex-DNM |
| -1 bar - 16 bar | Aggressive liquids and gases | Pressure / vacuum switch with stainless steel sensor made of 1.4571 | RL 2006/95/EG | DIN EN60730 | DNS VNS |
| -1 bar - 16 bar | Aggressive liquids and gases | Ex pressure / Ex vacuum switch with stainless steel sensor made of 1.4571 | ATEX 94/9/EG | DIN EN60730 DIN EN60079... |
Ex-DNS Ex-VNS |
| 4 mbar - 16 bar | Liquids and gases | Differential pressure switch | ATEX 94/9/EG | DIN EN60730 | DDCM |
| 4 mbar - 16 bar | Liquids and gases | Differential pressure switch for Ex areas | RL 2006/95/EG | DIN EN60730 DIN EN60079 | Ex-DDCM |
| -1 bar - 0.5 bar | Liquids and gases | Vacuum switch | RL 2006/95/EG | DIN EN60730 | VCM VNM |
| -1 bar - 0.5 bar | Liquids and gases | Ex vacuum switch | ATEX 94/9/EG | DIN EN60730 DIN EN60079 |
Ex-VCM Ex-VNM |
| 0.1 bar - 32 bar | Steam, hot water | Pressure monitor, pressure limiter | DGR 97/23/EG | VdTÜV Druck100 DIN EN12952-11 DIN EN12953-9 |
DWAM DWAMV SDBAM |
| 0.1 bar - 40 bar | Liquids and gases | Line monitoring with isolating switching amplifier (on site) |
DGR 97/23/EG |
VdTÜV Druck100 DIN EN 1854 EN 13611 DIN EN12952-11 DIN EN12953-9 |
DWAM...-576 DWR...-576 |
| 3 bar - 16 bar | Liquefied gas | Line monitoring with isolating switching amplifier (on site) | DGR 97/23/EG ATEX 94/9/EG |
VdTÜV Druck100 DIN EN 764-7 | FD |
| 15 mbar - 1.6 bar | Fuel gas | Pressure switch | EU/2009/142/EG | DIN EN1854 DIN EN13611 |
DGM |
| 15 mbar - 250 mbar | Fuel gas | Pressure switch for Ex area | ATEX 94/9/EG EU/2009/142/EG |
DIN EN1854 DIN EN13611 DIN EN60079 |
Ex-DGM |
| 0.1 bar - 40 bar | Steam, hot water, fuel gases, liquefied fuels | Pressure switch "special design" by testing with 2 million switching cycles | DGR 97/23/EG | VdTÜV Druck100 DIN EN 1854 DIN EN12952-11 DIN EN12953-9 |
DWR |
| 0.1 bar - 40 bar | Steam, hot water, fuel gases, liquefied fuels | Ex Pressure switch "special design" by testing with 2 million switching cycles | DGR 97/23/EG ATEX 94/9/EG |
VdTÜV Druck100 DIN EN 1854 DIN EN12952-11 DIN EN12953-9 DIN EN60079 |
Ex-DWR |
| Table 1: Fema - pressure switches | |
| * | Wetted materials are listed in the respective data sheets. The test for media resistance is generally the responsibility of the planner or the technical decision-maker. |
| ** | Pressure switches without SIL certification |