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Pneumatic Thermostats
Available49 products
Pneumatic thermostats respond to changes in temperature by increasing or decreasing the air pressure in a series of air-filled tubes. The change in pressure signals controllers or powers devices like dampers or valve actuators directly. Pneumatic thermostats are most often installed as replacements in older constructions with existing pneumatic systems, including schools, hospitals, and commercial buildings. They are not suitable for newer constructions without a supporting pneumatic system in place.
Number of Dials
Single-Temperature Thermostats
These thermostats have a single setpoint to control heating and cooling systems at one temperature for basic temperature control in older schools, hospitals, and commercial buildings. Pneumatic thermostats regulate the temperature using compressed air for power.
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Dual-Temperature Thermostats
Dual-temperature thermostats allow users to determine two separate temperature setpoints for different times of the day, week, or year. They save energy costs for schools or commercial buildings that are occasionally unoccupied. When the supply pressure to the unit changes, the thermostat automatically switches between the setpoint temperatures. Some thermostats also have a manual indexing switch that allows users to restore the prior temperature setting of an individual thermostat without affecting other thermostats in the system. The indexing switch can be unlatched manually, or it will automatically reset with the next cycle. These pneumatic thermostats are powered by compressed air.
Day/Night
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Heating And Cooling
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Remote Reset
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Summer/Winter
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Single-Temperature Remote-Bulb Sensor Thermostats
These thermostats have a remote-bulb temperature sensor that allows the control unit to be placed away from the sensor. The sensor is connected to the thermostat with a capillary tube. These thermostats sense the temperature of the air entering an HVAC system and are commonly mounted inside the casing of the system. These are single-temperature thermostats, so they're ideal for basic heating and cooling in commercial buildings, schools, or hospitals. These pneumatic thermostats are powered by compressed air.
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Dual-Temperature Remote-Bulb Sensor Thermostats
These thermostats have a remote-bulb temperature sensor that allows the control unit to be placed away from the sensor. The sensor is connected to the thermostat with a capillary tube. These thermostats sense the temperature of the air entering an HVAC system and are commonly mounted inside the casing of the system. These are dual-temperature thermostats, so users can determine different temperature setpoints to save energy when a building, such as a school or office, is unoccupied. When the supply pressure to the unit changes, the thermostat automatically switches between the setpoint temperatures. These pneumatic thermostats are powered by compressed air.
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Single-Temperature Piston Valve Actuator Thermostats
These thermostats include a piston valve actuator that provides proportional control of steam or water valves in single-temperature applications. They mount on valve bodies and operate them according to the signal from the thermostat. They're ideal for basic temperature control of either heating or cooling in commercial buildings, schools, or hospitals. These thermostats are powered by compressed air.
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Dual-Temperature Piston Valve Actuator Thermostats
These thermostats include a piston valve actuator that provides proportional control of steam or water valves for terminal air conditioners. They mount on valve bodies and operate them according to the signal from the thermostat. These are dual-temperature, dual-pressure thermostats. When the supply pressure to the unit changes, the thermostat automatically switches between heating or cooling. These pneumatic thermostats are powered by compressed air.
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