The steel wheel construction is designed for standard HVAC operating temperatures and provides better structural integrity than plastic or thin-gauge aluminum wheels in light industrial use

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it utilizes a snap-action contact system to ensure minimal bounce times

Integrating these high-quality components ensures your flow control system operates with maximum efficiency

Durable construction reduces the frequency of emergency steam system repairs

McDonnell & Miller 193-G Controller THPU32HP7Y The steel wheel construction isThe McDonnell & Miller 193 G serves as a heavy duty combination low water cut off and pump controller specifically designed for commercial steam boiler applications. Featuring two snap acting SPDT switches, this unit provides precise mechanical control for both burner circuits and boiler feed pump activation. Built to withstand demanding mechanical environments, the 193 G is rated for a maximum steam pressure of 150 PSI. This model includes alternate