What is the purpose of the Teflon sheathing on this specific model

The internal bi-metal sensor operates across a 55°F to 95°F range (represented by a 1-5 scale)

which offers consistent millivolt output and thermal response times

the Illinois 36859 seat provides a stable valve seat interface that reacts accurately to temperature fluctuations

along with a standard 1/8-inch equalizer line

Honeywell LP914A1144 Temperature Sensor 340155-7026 What is the purpose ofThe Honeywell LP914A1144 is a professional grade pneumatic temperature sensor engineered for precision sensing in commercial HVAC air handling units and ductwork. This single pipe pneumatic controller utilizes a high sensitivity rod and tube sensor element with a 15 inch insertion length, ensuring accurate thermal detection across a wide 25 125 degree Fahrenheit sensing range. As a direct acting pneumatic sensor, it provides a proportional 3 15 PSI