As a Single Pole Single Throw (SPST) switch with a fixed setpoint of 1

this front-seated shut-off valve provides a reliable seal to manage refrigerant flow during system maintenance or evacuation

and Ducane models using the 31J9101 specification

This kit is purpose-built for the Johnson Controls V-3802 (oval top) and V-4000 (non-metallic) pneumatic actuators when mounted on 1/2" VT series valves

The hinged cover provides easy authorized access via the included key

McDonnell & Miller 344100 Tube Assembly Els PW 17895 As a Single Pole SingleThe McDonnell & Miller 344100 (Model SA66 35) is a high precision upper tube assembly engineered for the maintenance and repair of Series 67 low water cut offs. As a critical safety component for steam boiler systems, this assembly ensures the operational integrity of the LWCO by housing the internal mechanism that responds to water level fluctuations. It is designed for seamless integration into existing 67 and 67 G models, facilitating a direct