McDonnell & Miller 53-HD Control Els PW 17895 it facilitates durability in demanding

it facilitates durability in demanding thermal conditions with a maximum temperature service of 312°F

Integrated Positioner: The factory-mounted V-9502 positioner eliminates hysterisis and provides precise stem positioning for the exposed pneumatic actuator

This model comes in a UL Type 1 indoor plastic enclosure

the Class F coil can generally be serviced or replaced without removing the brass valve body from the NPT piping

McDonnell & Miller 53-HD Control Els PW 17895 it facilitates durability in demandingUpgrade or restore your boiler's mechanical water feeder with the McDonnell & Miller 53 HD Head Mechanism. Designed specifically for low pressure steam and hot water boilers, this heavy duty Series 53 replacement part (Part Number 137000) provides proportional feed action to maintain safe water levels in systems larger than 5,000 sq. ft. As a head mechanism only, this unit allows for a direct swap onto your existing float chamber without needing to