Pneumatic Thermostats
Reliable Powers™ Controls Meets Pneumatic Needs
You can count on Powers robust pneumatic thermostats to provide reliable control for virtually any pneumatic system. We have a wide selection of Powerstar® thermostats, including single setpoint, heating/cooling, day/night/vent, free energy band, and gradual acting, as well as Retroline™ Retrostat Kits to convert most existing pneumatic thermostats to Powerstar.
The 192 S Thermostats are proportional single output, single setpoint, 1-pipe (low air capacity) or 2-pipe (high air capacity) sensor controllers. Each thermostat includes a wall mounting plate for installation in a variety of rough-in terminal boxes. A sensitive bimetal responds to temperature change to modulate control air through a flapper nozzle. One setpoint dial is provided. Air connections are made with 5/32” (4 mm) O.D. plastic tubing, directly to the thermostat chassis for retrofit applications or with plug-in adapter accessory that slide into the wall mounting plate.
The TH 192 HC thermostats are proportional single output, dual setpoint, 2-pipe (high air capacity) sensor controllers. Sensitive bimetals respond to temperature change to modulate control air through a flapper nozzle. When the supply air pressure changes from 18 to 25 psi (124 to 172 kPa), the thermostat automatically switches from the cooling to the heating setpoint respectively. Air connections are made with 5/32” (4 mm) O.D. plastic tubing, directly to the thermostat chassis for retrofit applications or with plug-in adapters which slide into the wall mounting plate.
The TH 192 DN and DNV thermostats are proportional single output, dual setpoint, 2-pipe or 3-pipe (high air capacity) sensor controllers. Sensitive bimetals respond to temperature change to modulate control air through a flapper nozzle. When the supply air pressure changes from 18 to 25 psi (124 to 172 kPa), the thermostat automatically switches from the day to the night setpoint respectively. Air connections are made with 5/32” (4 mm) O.D. plastic tubing, directly to the thermostat chassis for retrofit applications or with plug-in adapters which slide into the wall mounting plate.
The TH 193 HC thermostats are proportional dual output, dual setpoint, two-pipe (dual onepipe, low air capacity) or three-pipe (dual two-pipe, high air capacity) sensor controllers. Sensitive bimetals respond to temperature changes to modulate control air through a flapper nozzle. As the heating load decreases due to internal heat gains, a dead band of control minimizes energy consumption while the setpoint changes from 72°F (22°C) heating mode to 78°F (26°C) cooling mode. Two setpoint dials allow adjustment of the dead band 4°F (2°C) minimum. Air connections are made with 5/32-inch (4 mm) O.D. plastic tubing, directly to the thermostat chassis for retrofit applications or with plug-in adapters which slide into the wall mounting plate.
The TH 193 HC Hesitation Thermostats are proportional single output, dual setpoint, two-pipe (high air capacity) sensor controllers. Sensitive bimetals respond to temperature changes to modulate control air through a flapper nozzle. As the heating load decreases due to internal heat gains, a deadband of control minimizes energy consumption while the setpoint changes from 72°F (22°C) heating mode to 78°F (26°C) cooling mode. Two setpoint dials allow adjustment of the deadband (4°F, 2°C, minimum). Air connections are made with 5/32-inch (4 mm) O.D. plastic tubing, directly to the thermostat chassis for retrofit applications or with plug-in adapters which slide into the wall mounting plate.
Powers 832 D Room Thermostat is a gradual-acting, pneumatic instrument recommended for room temperature control in heating and air conditioning applications. Among the outstanding features of the D thermostat are its rapid response to temperature change and its unique design which prevents a constant waste of air. Other features include a wide range of adjustment, noncorrosive parts, ease of calibration and quiet operation.
The 356 LIMITEM™ Rigid Bulb Thermostat is a pneumatically operated, duct-mounted thermostat, which is available in either direct or reverse acting in a variety of ranges. The TH 357 LIMITEM™ is a gradual-direct acting thermostat for air temperature control. This pneumatically operated instrument senses a temperature and passes on a pneumatic signal whose pressure is proportional to the temperature sensed. The sensing element is liquid-filled, and is available in remote and averaging bulb styles.
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