Mercoid Control DA-31-153-3 Pressure Switch D series psi 2477

Mercoid Control D series bourdon tube pressure switch. SPDT Mercury switch, double external adjustments, adjustable deadband, fully automatic. Settings for high and low pressure operating points. 5 3/4 inch diameter, 1/2 conduit connection, 11/2 inch connection length, 2 1/8 Height.