Alternators are designed to provide motor alternation in the operation of two motors.
Type A (Open Tank)
The Class 9038 Type A Open Tank level switch is a mechanical alternator designed to provide motor alternation in the operation of two motors.
Type C (Closed Tank, Bushing Mounted)
The Class 9038 Type C Closed Tank level switches are bushing mounted. Float movement is transmitted through a quad ring seal. Each switch consists of a basic switch, rod, and float.
Type C switches are attached to the tank by means of a 2-1/2 in. bushing. An external pointer indicates the float position within the tank when the unit is mounted. Switches come complete with bushing, stainless steel float, and rod.
Type D (Closed Tank, Flange Mounted, Top)
Type D mechanical alternators are designed for applications where flange mounting is to be made at the top of a closed tank.