The "Q" in MIL72AQWUZH-120 indicates a quartz drive

The mid-point ground balance reduces the voltage stress on the insulation of the high-voltage leads

use the system controller to manually drive the valve open and closed to verify mechanical movement

and SS263 regulator models

Many 100074237 assemblies come as a standalone component

Trane BRK2795 Bracket 320735-701 The "Q" in MIL72AQWUZH-120 indicatesThe Trane BRK2795 is an essential OEM Bearing Arm Bracket designed specifically for the rigorous demands of commercial and industrial HVAC mechanical systems. As an authentic Trane replacement part, this 3 count set provides the structural integrity necessary to secure bearing assemblies, effectively reducing friction and radial stress on rotating components. These industrial HVAC brackets are precision engineered to maintain perfect alignment, which