Pressure switches for maritime applications
Typical areas of application at sea
Ballast water systems
Monitoring of hydraulic valve flaps
Fire extinguishing systems
Ensuring the required system pressure
Reverse osmosis systems
Pressure control in drinking water treatment
Ballast Water Systems
Why our pressure switches are ideally suited:
- Precise switching points even under dynamic load
- High vibration resistance
- Temperature and media resistance
Reverse Osmosis Systems
Why our pressure switches are ideally suited:
- 316Ti stainless steel material for high corrosion resistance
- Exact switch points for stable process control
- Long-term stable performance
Frequently Asked Questions
What special requirements does maritime use place on a pressure switch?
At sea, several stresses occur simultaneously: saline air, moisture, fluctuating temperatures, vibrations, and – depending on the installation site – direct contact with aggressive media. Therefore, a pressure switch must not only reliably maintain the desired switch point. Equally important are the correct material selection, suitable sealing, the electrical connection, and protection against external influences. Which version is suitable depends heavily on whether the switch is used, for example, in a protected engine room or directly in a corrosive environment.
What role does the choice of material play in seawater and saline environments?
In maritime applications, a distinction must be made between the external environment and the actual pressurized medium. Saline air poses different requirements than direct contact with seawater. For particularly corrosive applications, versions with highly corrosion-resistant stainless steel materials in the wetted area are therefore available. However, the specific media and material compatibility is always decisive – especially in reverse osmosis systems where saline water is permanently processed under high pressure.
How are pressure fluctuations and high system pressures taken into account?
Hydraulic ballast water systems and reverse osmosis systems place very different requirements on pressure monitoring. While dynamic pressure curves and pressure peaks can occur in hydraulic valve controls, reverse osmosis systems work with continuously high process pressures. Therefore, we do not consider the switch point and setting range in isolation, but always together with the maximum system pressure and the expected pressure peaks. In this way, the switch design can be matched to the actual load on the system.
What information do we need to select a pressure switch for maritime applications?
In addition to the operating pressure, desired switch point, and switching direction, we require information on the medium, the maximum system pressure, and possible pressure peaks. Equally important are the temperature range, installation site, pressure connection, and electrical interface. For maritime applications, information on humidity, saline atmosphere, direct media contact, vibration, and the required protection class is also included. On this basis, materials, sealing systems, and electrical designs can be specifically matched to the respective application.
