Siemens 134 Pneumatic High and Low Temperature Detection Thermostats


The 134 High and Low Temperature Detection Pneumatic Thermostats automatically “lockout” at setpoint and require manual reset.
• Snap-acting pneumatic switch
• Sight-set calibrated setpoint scale
• No leakage of air prior to reset of switch
• Easily adjustable settings
• Normally closed air valve; bleeds to less than 2 psi (14 kPa) when supplied through a restrictor
• Barb fitting for push-on connection of 1/4 (6 mm) OD polyethylene tubing
• Holds dead-ended line to approximately 22 psi (152 kPa) air pressure
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Cat # | Temperature Range | Differential | Temp | Max. Bulb Temp. | Bulb & Capillary Length | Switch Reclose |
134-1700 | 15 to 55°F (-9 to +12.8°C) with stop at 35°F (1.67°C) | 5°F (2.8°C) Non- Adjustable | Low | 400°F (204°C) | 20’ (6 m) | Temperature must increase by 5°F (2.8°C) before pneumatic switch can be reclosed. |
134-1710 | 100 to 170°F (38 to 77°C) | 10°F (5.6°C) Non- Adjustable | High | 250°F (121°C) | 2.7” (69 mm) Dia. x 10” (25.4 cm) L bulb with 6’ (183 mm) capillary | Temperature must drop 10°F (5.6°C) before pneumatic switch can be reclosed. |
Part No. 134-1700 | ||
Ambient Temperature Range | Greater than setpoint to 140°F (60°C) | |
Pneumatic Switch | NC, 0.020" (0.6 mm) diameter bleed | |
Control Point Low | ||
Temperature Thermostat | Lowest temperature at any one foot section of the sensing bulb | |
Case Finish | Gray Baked Enamel | |
Shipping Weight | 2.45 lb. (1.11 kg) | |
Part No. 134-1710 | ||
Ambient Temperature Range | -40 to +140°F (-40 to +60°C) |
|
Pneumatic Switch | NC, 0.02" (0.6 mm) diameter bleed | |
Control Point Low | ||
Temperature Thermostat | Lowest temperature at any one foot section of the sensing bulb | |
Case Finish | Gray Baked Enamel | |
Shipping Weight | 2.38 lb. (1.08 kg) |