Enhanced Durability: The integrated spring assembly provides structural reinforcement to the 6-inch main tube

it delivers a high 13 Cv flow coefficient

simplify field installation

The 5-foot lead allows for the sensing bulb to be mounted adequately away from the valve body on the suction header

Common Technical Questions: Is the 594WA-21ST bi-directional

McDonnell & Miller 53 Water Feeder 30067439-890 Enhanced Durability: The integrated springThe McDonnell & Miller 53 is a heavy duty mechanical water feeder engineered for maintaining precise water levels in large scale low pressure steam and hot water boilers exceeding 5,000 sq. ft. in capacity. Featuring rugged 1" NPT connections, this part number 136900 is designed to handle a maximum vessel pressure of 75 PSI, offering a significantly higher threshold than the standard 35 PSI found in the Series 51 counterparts. The unit provides