Model 106 Bellow Type Differential Pressure Gauge & Switch

Model’s106 (±1/2% or ± 1% Full Scale Accuracy) System pressure is applied to the internal volume of a bellows and mechanical linkage assembly. 

As pressure changes, the bellows and linkage assembly move to cause an electrical signal to be produced or to cause a gauge pointer to move. 

Model’s 106 assembly incorporates a bi-directional relief valve which provides over-pressure protection in both directions. 

When over-pressured from the high side, the valve is opened by a mechanical stop as the sensing element deflects to its maximum travel.