Boiler Controls

Boiler Controls

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  • 120601 McDonnell & Miller FS8-W - 1" Flow Switch

    120601 McDonnell & Miller FS8-W - 1" Flow Switch

    McDonnell & Miller

    $184.95
    120601 McDonnell & Miller FS8-W - 1" Flow Switch General purpose flow switch w/NEMA 4X enclosure 120601. Mcdonnell & Miller 120601 Instruction Manual For general purpose applications with environmental exposure, or those requiring a...
    $184.95
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    $184.95
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  • 120611 McDonnell & Miller FS251

    120611 McDonnell & Miller FS251 Flow Switch With NEMA 1 Enclosure

    McDonnell & Miller

    $138.95
    McDonnell & Miller FS251 General Purpose Flow Switch With NEMA 1 Enclosure 120611, Replaces FS4-3. Information: McDonnell & Miller FS4 Brochure McDonnell & Miller FS4 Instruction Manual Features Universal design serves the widest...
    $138.95
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    $138.95
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  • 114400 McDonnell & Miller FS4-3 1" Flow Switch 1" NPT

    114400 McDonnell & Miller FS4-3 1" Flow Switch

    McDonnell & Miller

    $134.95
    114400 McDonnell & Miller FS4-3 1" Flow Switch 1" NPT. Click here for more info on Mcdonnell Miller Flow Switches Universal design serves the widest variety of applications. For starting or stopping electrically operated equipment such as signal...
    $134.95
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    $134.95
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  • 120610 McDonnell & Miller FS254 Flow Switch

    120610 McDonnell & Miller FS254 Flow Switch With NEMA 4 Enclosure

    McDonnell & Miller

    $178.95
    120610 McDonnell & Miller FS254 Flow Switch With NEMA 4 Enclosure, Replaces FS8-W. McDonnell & Miller FS254 Brochure Features: Universal design serves the widest variety of applications For starting or stopping electrically operated equipment...
    $178.95
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    $178.95
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  • 113200 McDonnell & Miller FS-1 1/2" Liquid Flow Switch

    113200 McDonnell & Miller FS-1 1/2" Liquid Flow Switch

    McDonnell & Miller

    $214.95
    113200 McDonnell & Miller FS-1 1/2" Liquid Flow Switch. McDonnell & Miller FS1 Instruction Manual Features: For general purpose applications where high sensitivity is required and moderate or low flow rates are encountered such as air...
    $214.95
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    $214.95
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  • 114639 McDonnell & Miller FS4-3RP-T 1" Flow Switch FS4-3 With Test Button

    114639 McDonnell & Miller FS4-3RP-T 1" Flow Switch

    McDonnell & Miller

    $178.95
    114639 McDonnell & Miller FS4-3RP-T 1" Flow Switch FS4-3 With Test Button. McDonnell & Miller FS4 Brochure McDonnell & Miller FS4 Instruction Manual Universal design serves the widest variety of applications. For starting or stopping...
    $178.95
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    $178.95
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  • 123400 McDonnell & Miller Air Flow Switch Model AF3

    123400 McDonnell & Miller AF3 Air Flow Switch

    McDonnell & Miller

    $149.95
    123400 McDonnell & Miller Air Flow Switch Model AF3. McDonnell & Miller AF1 Flow Switch Instruction Manual For general purpose low velocity applications where the most economical flow switch is desired. Paddle fits 8" (203mm) minimum...
    $149.95
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    $149.95
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  • 113001 Bell & Gossett Model 7 Air Vent

    113001 Bell & Gossett Model 7 Air Vent

    Bell & Gossett

    $64.80
    113001 Bell & Gossett Model 7 Air Vent. The B&G Air Vent model 7 has a maximum pressure of 75 psi and 240 degrees F and 1/8" IPM. Please see the brochure for more info. Information: 113001 Bell & Gossett Air Vent Brochure This Item Usually...
    $64.80
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    $64.80
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  • 123000 McDonnell & Miller Air Flow Switch Model AF1-S

    123000 McDonnell & Miller Air Flow Switch AF1-S

    McDonnell & Miller

    $292.95
    123000 McDonnell & Miller Air Flow Switch AF1-S. Mcdonnell & Miller AF1 Flow Switch Instruction Manual For general purpose applications with medium and high velocity requirements: Paddle fits 8" (203mm) minimum duct size, or 6" (152mm) if...
    $292.95
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    $292.95
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  • 113076 Bell & Gossett Air Vent 107A W/Cast Iron Body

    113076 Bell & Gossett Air Vent 107A W/Cast Iron Body

    Bell & Gossett

    $594.95
    113076 Bell & Gossett Air Vent 107A 3/4" Cast Iron Body, 150psi 250°F. Information: Bell & Gossett 107A High Capacity Air Vent Brochure Bell & Gossett 107A High Capacity Air Vent Technical Brochure Bell & Gossett 107A High...
    $594.95
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    $594.95
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  • 113246 Bell & Gossett Model 98 Automatic Air Vent

    113246 Bell & Gossett High Capacity Air Vent Model 98

    Bell & Gossett

    $70.95
    113246 Bell & Gossett Automatic Air Vent Model 98. Float style automatic brass air vent eliminates troublesome air from hydronic systems. The 98 air vent is designed with non-ferrous internals and a brass body and cap. Maximum working pressure:...
    $70.95
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    $70.95
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  • 114780 McDonnell & Miller FS5-1 - 1" Flow Switch

    114780 McDonnell & Miller FS5-1 - 1" Flow Switch

    McDonnell & Miller

    $224.95
    114780 McDonnell & Miller FS5-1 - 1" Flow Switch 114780. McDonnell & Miller FS5 Instruction Manual Features: In-line configuration eliminates need for a pipe tee Sizes available: 3/4" NPT, 1" NPT Materials of construction: Brass, carbon &...
    $224.95
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    $224.95
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  • 127002 Bell & Gossett TB-1 Thermoflo Balancer

    127002 Bell & Gossett TB-1 Thermoflo Balancer

    Bell & Gossett

    $298.95
    127002 Bell & Gossett TB-1 Thermoflo Balancer The Thermoflo Balancer is an indicating flow meter and balancing device for measuring and balancing hydronic circuits. Installed in each circuit of a system, it permits simple balancing to...
    $298.95
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    $298.95
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  • 126400 McDonnell & Miller Make-Up Water Feeder Model 21

    126400 McDonnell & Miller 21 Make-Up Water Feeder Model 21

    McDonnell & Miller

    $572.95
    126400 McDonnell & Miller Make-Up Water Feeder Model 21. Mcdonnell & Miller Model 21 Instruction Manual For boiler receiver tanks Direct mounting eliminates need for equalizing connections Proportional feed action Mounting Flange – six...
    $572.95
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    $572.95
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  • 113075 Bell & Gossett Vacuum Breaker #26

    113075 Bell & Gossett Vacuum Breaker #26

    Bell & Gossett

    $104.95
    113075 Bell & Gossett Vacuum Breaker #26. Designed to protect closed vessels and piping systems against collapse when the induced vacuum exceeds design conditions. When used on steam heating systems, the No. 26 Vacuum Breaker controls induced...
    $104.95
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    $104.95
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  • 169550 McDonnell & Miller Universal Water Feeder Uni-Match WFE-24V

    169550 McDonnell & Miller WFE-24V Universal Water Feeder Uni-Match

    McDonnell & Miller

    $278.95
    169550 McDonnell & Miller Universal Water Feeder Uni-Match WFE-24V. McDonnell & Miller WFE-24V Instruction Manual McDonnell & Miller Universal Water Feeders are ideal for use in residential or small commercial applications. Versatile...
    $278.95
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    $278.95
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  • 114760 McDonnell & Miller FS5-3/4 - 3/4" Flow Switch

    114760 McDonnell & Miller FS5-3/4 - 3/4" Flow Switch

    McDonnell & Miller

    $224.95
    114760 McDonnell & Miller FS5-3/4 - 3/4" Flow Switch 114760. Information: McDonnell & Miller FS5 Instruction Manual Features: For general purpose applications requiring low flow rate sensitivity In-line configuration eliminates need for a pipe...
    $224.95
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    $224.95
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  • 113246 Bell & Gossett Model 98 Automatic Air Vent

    113222 Bell & Gossett Model 97 Automatic Air Vent

    Bell & Gossett

    $11.85
    113222 Bell & Gossett Model 97 Automatic Air Vent. The number 97 is a float type automatic air vent that is designed to vent troublesome air from hydronic heating systems. Brass body with non-ferrous internals. Maximum working pressure: 150 PSI...
    $11.85
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    $11.85
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