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and 9 for hazardous or washdown locations
while using it for a higher-rated unit will lead to premature failure
making it suitable for outdoor and wash-down environments
and Armstrong R41093-001
Industrial-Grade Construction: Built to withstand high-temperature environments and thousands of cycles without diaphragm fatigue
McDonnell & Miller 61-HD Low Water Cut Off R-410A and 9 for hazardous orThe McDonnell & Miller 61 HD (Part Number 140300) is a heavy duty mechanical low water cut off designed specifically for low pressure steam boiler applications. This head mechanism serves as a direct replacement component for Series 61 controllers, facilitating reliable burner circuit interruption when water levels drop below the safe line. Rated for a maximum steam pressure of 20 PSI, the 61 HD utilizes a high buoyancy float operated mechanism to