Description
Explosion-Proof Pressure Switch – Cost-Effective ATEX Solution
Features
- ATEX-certified for hazardous areas – ATEX CE II 3G Ex ec nC IIC T6…T5 Gc certification for gases in Zone 2
- Designed for use in hazardous areas where flammable gases or vapors may be present
- Available for pressure monitoring applications involving gases and vapors
- Durable housing made from stainless steel 1.4305
- Encapsulated and sealed ignition protection
- Factory-adjustable hysteresis – Hysteresis can be adjusted at the factory to meet application requirements
- 250 V maximum voltage – Changeover configuration with silver contacts and a maximum voltage of 250 V
Series
0386-N – Diaphragm Pressure Switch
Pmax in bar: 100 bar
Pmax in bar: 400 bar
0387-N – Piston Pressure Switch
Pmax in bar: 700 bar
Technical Specifications
| Seal Materials | Application areas |
|---|---|
| NBR | Hydraulic/machine oil, air, nitrogen, etc. 1 |
| EPDM | Brake fluid, water, hydrogen, oxygen, acetylene, etc. 2 |
| Dust Zone | Hydraulic fluids (HFA, HFB, HFD), petrol/gasoline, etc. 3 |
| Housing Material | Stainless steel 1.4305 |
| Certifications | Compliant with the ATEX Directive 2014/34/EU and IECEx scheme |
Pressure Switch Applications
These pressure switches are built for pressure monitoring and control in industrial equipment and systems, including installations where flammable gases or vapors may be present. With stainless steel housings and ATEX and IECEx certification, they are suited to a range of industrial and hazardous-area applications.
1. Oil & Gas
Used for pressure monitoring in pipelines, refineries, gas processing equipment, compressors, pumps, and storage systems. The ATEX-certified design makes the switches suitable for use in Zone 2 areas where flammable gases may be present.
2. Natural Gas
Used in natural gas pipelines, compressor stations, pressure-regulating equipment, and gas distribution systems. The switches provide reliable pressure switching in areas where combustible gases can create a hazardous atmosphere.
3. Hydrogen
Suitable for pressure monitoring in hydrogen production, storage, compression, and fueling systems. The EPDM seal option can be used with hydrogen, making the switch suitable for a variety of hydrogen pressure applications.
4. Chemical & Petrochemical
Used on pumps, compressors, process equipment, reactors, and storage systems where pressure monitoring or switching is required. The stainless steel housing and hazardous-area certification make the switches suitable for demanding process environments.
5. Hydraulic Systems
Used in hydraulic power units, presses, machine tools, industrial machinery, and other high-pressure systems. The 0387-N piston pressure switch is rated for pressures up to 700 bar, making it suitable for high-pressure hydraulic applications.
6. Compressors & Pumps
Used to monitor operating pressure on industrial compressors and pumps. The switch can be used for equipment control, alarms, or shutdown functions where a mechanical pressure switch is required.
7. Fuel & Fuel-Gas Systems
Used for pressure monitoring in fuel supply, storage, transfer, and pressure-regulation systems. Applications include equipment handling gasoline, natural gas, and other combustible fluids or gases.
8. Offshore & Marine
Used on offshore platforms, FPSOs, marine fuel systems, hydraulic equipment, compressors, and pumps. The stainless steel construction and hazardous-area certification make the switches suitable for equipment installed in classified areas.
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