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McDonnell & Miller

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  • Xylem-McDonnell & Miller 67 Mechanical Low Water Cut-Off, designed for steam boilers. Features 3/4" NPT connection, 20 PSI max boiler pressure, and an auto-reset function. This reliable cut-off includes quick hookup fittings (Part Number 149400), making installation easy and efficient. Ideal for preventing low water conditions in steam boilers, ensuring safe operation and reducing the risk of system damage in commercial and industrial heating applications.
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    McDonnell & Miller

    SKU: 149400

    149400

    $542.50
    1 in stock
  • Xylem-McDonnell & Miller 64-HD auto reset mechanical low water cut-off for hot water and steam boilers, designed for up to 50 PSI max boiler pressure head. Includes mechanism only (Part Number 144400), ensuring reliable protection for boiler systems
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    McDonnell & Miller

    SKU: 144400

    144400

    $542.50
    1 in stock
  • Xylem-McDonnell & Miller 64 mechanical low water cut-off with 1-inch NPT connections, 50 PSI maximum boiler pressure, and auto-reset functionality. Designed for hot water and steam boilers, ensuring reliable safety and performance (Part Number 143600)
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    McDonnell & Miller

    SKU: 143600

    143600

    $607.60
    1 in stock
  • Xylem-McDonnell & Miller 63-M Manual Reset Mechanical Low Water Cutoff, 1" NPT, designed for hot water and steam boilers. With a 50 PSI max boiler pressure, this reliable cutoff ensures safety by preventing low water conditions. Part Number 143100
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    McDonnell & Miller

    SKU: 143100

    143100

    $724.50
    2 in stock
  • Xylem McDonnell & Miller 63-HD, Auto Reset Low Water Cut Off, Mechanical Low Water Cut Off, Low Water Cut Off for Hot Water Boilers, Low Water Cut Off for Steam Boilers, 50 PSI Boiler Pressure, Boiler Safety Mechanism, 142600, Boiler Low Water Protection, Commercial Boiler Safety, Industrial Boiler Low Water Cut Off, McDonnell & Miller Boiler Parts, Hot Water Boiler Safety
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    McDonnell & Miller

    SKU: 143200

    143200

    $674.10
    2 in stock
  • Xylem-McDonnell & Miller 63-HD Auto Reset Mechanical Low Water Cut Off for Hot Water and Steam Boilers. Designed for boilers with a 50 PSI max boiler pressure, this reliable safety mechanism ensures efficient operation by automatically resetting to prevent potential damage. Part Number 142600, ideal for commercial and industrial boiler systems
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    McDonnell & Miller

    SKU: 142600

    142600

    $674.10
    3 in stock
  • Xylem-McDonnell & Miller 61 Mechanical Low Water Cut-Off, 1" NPT, designed for steam boilers. This reliable safety device features a 20 PSI maximum steam pressure rating and helps prevent low water conditions that can damage the boiler. With Part Number 140100, it provides essential protection for steam boilers in industrial and commercial applications, ensuring safe and efficient operation by automatically shutting off the system when water levels are dangerously low. Ideal for boiler safety and maintenance.
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    McDonnell & Miller

    SKU: 140100

    140100

    $604.10
    2 in stock
  • Xylem-McDonnell & Miller 5-M 120Vac/240Vac, 2-SPDT Manual Reset General Purpose Switch (Part Number 110400). This durable and reliable switch is designed for use in general purpose applications, offering dual voltage compatibility (120Vac/240Vac) and manual reset functionality. Ideal for controlling electrical systems in industrial and commercial settings, ensuring consistent operation and safety.
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    McDonnell & Miller

    SKU: 110400

    110400

    $1,020.60
    1 in stock
  • Xylem-McDonnell & Miller 51-HD Mechanical Water Feeder - Designed for low pressure steam and hot water boilers, this feeder features a 35 PSI max vessel pressure and operates with a head mechanism only (Part Number 134900). A reliable solution for maintaining water levels in boiler systems.
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    McDonnell & Miller

    SKU: 134900

    134900

    $1,260.70
    1 in stock
  • Xylem-McDonnell & Miller 51-2-HD mechanical water feeder and low water cut-off head mechanism, designed for low-pressure steam and hot water boilers. Features a 35 PSI maximum vessel pressure and a snap-acting SPDT switch (Part Number 135100). This head-only component ensures precise water level control and reliable protection against low water conditions in boiler systems.
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    McDonnell & Miller

    SKU: 135100

    135100

    $1,467.20
    1 in stock

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