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  • WFE-24V, Uni-Match Universal Water Feeder<br>(24V) Product Image
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    WFE-24V, Uni-Match Universal Water Feeder (24V) 169550 WFE-24V, Uni-Match Universal Water Feeder (24V)
    SKU: 169550
    Brand: Mcdonnell & Miller
    (29)
    $211.97 each
    179
    Thu, Apr 29
    179
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    179 Thu, Apr 29
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  • VXT-24 Water Feeder - 24V Product Image
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    VXT-24 Water Feeder - 24V 45-026 VXT-24 Water Feeder - 24V
    SKU: 45-026
    Brand: Hydrolevel
    (11)
    $201.91 each
    103
    Thu, Apr 29
    142
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    103 Thu, Apr 29
    39 Mon, May 3 – Tue, May 4
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  • 47-2, Mechanical Water Feeder w/ LWCO Function Product Image
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    47-2, Mechanical Water Feeder w/ LWCO Function 132800 47-2, Mechanical Water Feeder w/ LWCO Function
    SKU: 132800
    Brand: Mcdonnell & Miller
    (8)
    $630.99 each
    45
    Thu, Apr 29
    45
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    45 Thu, Apr 29
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  • VXT-120 Water Feeder - 120V Product Image
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    VXT-120 Water Feeder - 120V 45-122 VXT-120 Water Feeder - 120V
    SKU: 45-122
    Brand: Hydrolevel
    (8)
    $201.91 each
    60
    Thu, Apr 29
    61
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    60 Thu, Apr 29
    1 Mon, May 3 – Tue, May 4
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  • CO-12 Head Gasket for 42, 61, 63, 64, 65 Product Image
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    CO-12 Head Gasket for 42, 61, 63, 64, 65 302700 CO-12 Head Gasket for 42, 61, 63, 64, 65
    SKU: 302700
    Brand: Mcdonnell & Miller
    $6.12 each
    204
    Thu, Apr 29
    204
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    204 Thu, Apr 29
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  • 14-B, Blow Down Valve Ball Type for 47,247,67,70B Water Feeders Product Image
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    14-B, Blow Down Valve Ball Type for 47,247,67,70B Water Feeders 310447 14-B, Blow Down Valve Ball Type for 47,247,67,70B Water Feeders
    SKU: 310447
    Brand: Mcdonnell & Miller
    (14)
    $81.77 each
    46
    Thu, Apr 29
    46
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    46 Thu, Apr 29
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  • WFE-120V, Uni-Match Universal Water Feeder<br>(120V) Product Image
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    WFE-120V, Uni-Match Universal Water Feeder (120V) 169560 WFE-120V, Uni-Match Universal Water Feeder (120V)
    SKU: 169560
    Brand: Mcdonnell & Miller
    (5)
    $223.08 each
    43
    Thu, Apr 29
    43
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    43 Thu, Apr 29
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  • 37-39, Strainer or Blow Off Gasket for 47,53,67,70 Product Image
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    37-39, Strainer or Blow Off Gasket for 47,53,67,70 313300 37-39, Strainer or Blow Off Gasket for 47,53,67,70
    SKU: 313300
    Brand: Mcdonnell & Miller
    $4.78 each
      Box Up & Save 5%  
    $45.60 box of 10
    $4.56 each
    23
    Thu, Apr 29
    23
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    23 Thu, Apr 29
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  • 101A-120V, Electric Water Feeder (120V) Product Image
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    101A-120V, Electric Water Feeder (120V) 169400 101A-120V, Electric Water Feeder (120V)
    SKU: 169400
    Brand: Mcdonnell & Miller
    (1)
    $294.99 each
    37
    Thu, Apr 29
    37
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    37 Thu, Apr 29
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  • 2M, Cutoff Switch w/ Man. Reset for M&M 47-2, 51-2 51S2, 63, and 247-2 Product Image
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    2M, Cutoff Switch w/ Man. Reset for M&M 47-2, 51-2 51S2, 63, and 247-2 110100 2M, Cutoff Switch w/ Man. Reset for M&M 47-2, 51-2 51S2, 63, and 247-2
    SKU: 110100
    Brand: Mcdonnell & Miller
    $109.97 each
    34
    Thu, Apr 29
    34
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    34 Thu, Apr 29
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  • RS-1-BR-1, Single Level Remote Sensor Product Image
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    RS-1-BR-1, Single Level Remote Sensor 179524 RS-1-BR-1, Single Level Remote Sensor
    SKU: 179524
    Brand: Mcdonnell & Miller
    $139.19 each
    22
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    22
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    22 Thu, Apr 29
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  • F-26, M35 Gasket for 221 25A, 51, 53, 3155 Product Image
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    F-26, M35 Gasket for 221 25A, 51, 53, 3155 304200 F-26, M35 Gasket for 221 25A, 51, 53, 3155
    SKU: 304200
    Brand: Mcdonnell & Miller
    $8.12 each
    125
    Thu, Apr 29
    125
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    125 Thu, Apr 29
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  • SA101-38, Strainer Basket Assembly 47, 51, 101A Product Image
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    SA101-38, Strainer Basket Assembly 47, 51, 101A 347100 SA101-38, Strainer Basket Assembly 47, 51, 101A
    SKU: 347100
    Brand: Mcdonnell & Miller
    $38.00 each
    167
    Thu, Apr 29
    167
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    167 Thu, Apr 29
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  • SA67-2, Float & Bellow Assembly Product Image
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    SA67-2, Float & Bellow Assembly 344200 SA67-2, Float & Bellow Assembly
    SKU: 344200
    Brand: Mcdonnell & Miller
    (5)
    $121.91 each
    16
    Thu, Apr 29
    16
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    16 Thu, Apr 29
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  • 101A-24V, Electric Water Feeder (24V) Product Image
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    101A-24V, Electric Water Feeder (24V) 169500 101A-24V, Electric Water Feeder (24V)
    SKU: 169500
    Brand: Mcdonnell & Miller
    (4)
    $388.56 each
    27
    Thu, Apr 29
    27
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    27 Thu, Apr 29
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  • 51-2, Mechanical Water Feeder w/ #2 Switch (LWCO Function) Product Image
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    51-2, Mechanical Water Feeder w/ #2 Switch (LWCO Function) 135000 51-2, Mechanical Water Feeder w/ #2 Switch (LWCO Function)
    SKU: 135000
    Brand: Mcdonnell & Miller
    $780.02 each
    16
    Thu, Apr 29
    16
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    16 Thu, Apr 29
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  • 37-26, Head Gasket for 47 Product Image
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    37-26, Head Gasket for 47 313800 37-26, Head Gasket for 47
    SKU: 313800
    Brand: Mcdonnell & Miller
    $8.90 each
    44
    Thu, Apr 29
    44
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    44 Thu, Apr 29
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  • 2, Cutoff Switch for McDonnell & Miller 47-2<br>51-2, 51S2, 63, and 247-2 Product Image
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    2, Cutoff Switch for McDonnell & Miller 47-2 51-2, 51S2, 63, and 247-2 110000 2, Cutoff Switch for McDonnell & Miller 47-2 51-2, 51S2, 63, and 247-2
    SKU: 110000
    Brand: Mcdonnell & Miller
    (2)
    $109.97 each
    31
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    31
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    31 Thu, Apr 29
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  • 37-101, Tetraseal O-Ring for 21, 25A, 47, 51, 53, 101A Product Image
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    37-101, Tetraseal O-Ring for 21, 25A, 47, 51, 53, 101A 324500 37-101, Tetraseal O-Ring for 21, 25A, 47, 51, 53, 101A
    SKU: 324500
    Brand: Mcdonnell & Miller
    $10.97 each
    20
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    20
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    20 Thu, Apr 29
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  • 21, Make-Up Water Feeder Product Image
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    21, Make-Up Water Feeder 126400 21, Make-Up Water Feeder
    SKU: 126400
    Brand: Mcdonnell & Miller
    (2)
    $531.47 each
    20
    Thu, Apr 29
    20
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    20 Thu, Apr 29
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  • Water Feeder Valve Assembly - 24V Product Image
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    Water Feeder Valve Assembly - 24V 45-343 Water Feeder Valve Assembly - 24V
    SKU: 45-343
    Brand: Hydrolevel
    (1)
    $82.44 each
    9
    Thu, Apr 29
    9
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    9 Thu, Apr 29
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  • SA51-101-102, Valve and Strainer for 51, 851 Product Image
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    SA51-101-102, Valve and Strainer for 51, 851 342500 SA51-101-102, Valve and Strainer for 51, 851
    SKU: 342500
    Brand: Mcdonnell & Miller
    (1)
    $244.39 each
    18
    Thu, Apr 29
    18
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    18 Thu, Apr 29
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  • 37-27, Valve Bracket Gasket for 51, 47, 247 Product Image
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    37-27, Valve Bracket Gasket for 51, 47, 247 313900 37-27, Valve Bracket Gasket for 51, 47, 247
    SKU: 313900
    Brand: Mcdonnell & Miller
    $4.78 each
    23
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    23
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    23 Thu, Apr 29
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  • SA47-101-102, Cartridge and Strainer Assembly<br>for 47, 247, 847 Product Image
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    SA47-101-102, Cartridge and Strainer Assembly for 47, 247, 847 341600 SA47-101-102, Cartridge and Strainer Assembly for 47, 247, 847
    SKU: 341600
    Brand: Mcdonnell & Miller
    (5)
    $244.39 each
    9
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    9
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    9 Thu, Apr 29
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FAQs, Manuals & Videos

Resources

Articles

  • Water feeders protect boilers by maintaining a safe water level. Low water cutoffs work in coordination with water feeders to detect the fluid level in hot water and steam boilers. If water level falls below the minimum safe operating level, the water feeder is initiated. Water feeders can be automatic (electric) or manually operated.

    Electric water feeders eliminate the need to manually add water to the boiler. These water feeders are used for low pressure steam boilers with a cold water feed. Electric water feeders detect fluid, expose leaks, and provide the necessary information needed to diagnose a problem.

    Mechanical water feeders are used for hot water and low pressure steam boilers with a cold water feed. Mechanical feeders contain a float which responds to the water level in a boiler. These units are quiet, durable and feature an isolated feed valve which minimizes lime and scale build-up.

    We offer a wide selection of McDonnell & Miller, Taco and Hydrolevel water feeders for protection of all types of boilers, ranging from small residential hot water boilers to large industrial steam units.

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