Frost protection, refrigeration thermostat, safety switches,
hot air sensors, temperature bellows with little space requirement.

Technical design:

Temperature based volume expansion of the charge, results in a displacement of the diaphragm. Displacement is mainly used as a constant control or switching function in connection with electronic or electro-mechanical components. Diaphragm systems can also be used as direct mechanical actuators. In case of a leakage, diaphragm moves into a neutral position which may also be used as a safety function. Maximum actuator force depends on geometry and on the charge itself.

• Charges: fluid, gas, refrigerants, mixed phases
• Compact design
• Expansions from 0.005 up to 0.10 mm/K
• Suitable for temperature ranges from -35°C up tos + 340°C
• Linear characteristic
• Pressure or displacement limitation (only gas, refrigerant and mixed phases charges)
• Safety function
• Own diaphragm production

Materials:

Stainless steel (diaphragm + housing, copper and brass, various layers on request.