Direct-Acting Pneumatic One-Pipe Room Thermostat with °C setpoint dial and °C thermometer: Supply Air Pressure: 30 psig (206.8 kPa) maximum; 15 psig (103.4 kPa) nominal for single acting thermostats. Throttling Range: Fixed-6F° (3.5 C°),for a 10 psig (69 kPa)branch line pressure change, nominally 3 to 13 psig (20.7 to 89.6 kPa).
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