Boiler Controls
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
120601 McDonnell & Miller FS8-W - 1" Flow Switch
McDonnell & Miller
$248.95120601 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...$248.95 -
114400 McDonnell & Miller FS4-3 1" Flow Switch
McDonnell & Miller
$204.95114400 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...$204.95 -
120611 McDonnell & Miller FS251 Flow Switch With NEMA 1 Enclosure
McDonnell & Miller
$198.95McDonnell & 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...$198.95 -
113021 Bell & Gossett Automatic Air Vent Model 87
Bell & Gossett
$114.95113021 Bell & Gossett Automatic Air Vent Model Number 87 1/2" Female & 3/4" Male. 113021 Bell & Gossett Air Vent Brochure This Item Usually Ships The Same Day!$114.95 -
120610 McDonnell & Miller FS254 Flow Switch With NEMA 4 Enclosure
McDonnell & Miller
$314.95120610 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...$314.95 -
A2D33 Goulds Pump Master Float Switch
Goulds
$118.95A2D33 - Goulds Pump Master Float Switch. This Item Usually Ships The Same Day!$118.95 -
113200 McDonnell & Miller FS-1 1/2" Liquid Flow Switch
McDonnell & Miller
$315.95113200 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...$315.95 -
153900 McDonnell & Miller Low Water Cut Off 69
McDonnell & Miller
$462.95153900 McDonnell & Miller Mechanical Low Water Cut Off 69. Float Type Low Water Cut Off For Millivolt Service. Information: McDonnell & Miller LWCO Model 69 General Catalog McDonnell & Miller LWCO Model 69 Installation...$462.95 -
114780 McDonnell & Miller FS5-1 - 1" Flow Switch
McDonnell & Miller
$339.95114780 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,...$339.95 -
123400 McDonnell & Miller AF3 Air Flow Switch
McDonnell & Miller
$228.95123400 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)...$228.95 -
114639 McDonnell & Miller FS4-3RP-T 1" Flow Switch
McDonnell & Miller
$264.95114639 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...$264.95 -
127002 Bell & Gossett TB-1 Thermoflo Balancer
Bell & Gossett
$434.95127002 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...$434.95 -
113222 Bell & Gossett Model 97 Automatic Air Vent
Bell & Gossett
$18.50113222 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...$18.50 -
123000 McDonnell & Miller Air Flow Switch AF1-S
McDonnell & Miller
$444.95123000 McDonnell & Miller Air Flow Switch AF1-S. *Please note image is generic. McDonnell & Miller AF1 Flow Switch Instruction Manual For general purpose applications with medium and high velocity requirements: Paddle fits 8" (203mm)...$444.95 -
127001 Bell & Gossett TB-3/4 Thermoflo Balancer
Bell & Gossett
$424.95127001 Bell & Gossett TB-3/4 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...$424.95 -
181725 McDonnell & Miller Relief Valve 250-3/4-100
McDonnell & Miller
$184.95181725 McDonnell & Miller Relief Valve 250-3/4-100. Features and Benefits: For tanks and hydronic heating systems Protects against over-pressure Minimizes hammering with flash steam Low differential pressure – 3 psi (.21 kg/cm2) between...$184.95 -
113001 Bell & Gossett Model 7 Air Vent
Bell & Gossett
$109.95113001 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...$109.95 -
169550 McDonnell & Miller WFE-24V Universal Water Feeder Uni-Match
McDonnell & Miller
$424.95169550 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...$424.95 -
113246 Bell & Gossett Model 98 Automatic Air Vent
Bell & Gossett
$124.95113246 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:...$124.95 -
113020 Bell & Gossett Automatic Air Vent Model 67
Bell & Gossett
$46.95113020 Bell & Gossett Automatic Air Vent Model Number 67 Male Threaded. The Bell & Gossett model 7 is rated at maximum operating temperature of 240°F at 75 psi. Bell & Gossett 113020 Air Vent Brochure This Item Usually Ships The...$46.95 -
114760 McDonnell & Miller FS5-3/4 - 3/4" Flow Switch
McDonnell & Miller
$354.95114760 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...$354.95 -
401422 Hoffman 1A 1/8" Adjustable Angle Steam Radiator Air Valve
Hoffman
$64.95401422 - Hoffman 1A - 1/8" Adjustable Angle Steam Radiator Air Valve. This Item Usually Ships The Same Day!$64.95 -
113075 Bell & Gossett Vacuum Breaker #26
Bell & Gossett
$184.95113075 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...$184.95 -
114900 McDonnell & Miller FS4-3T2-3/4 - 3/4" Flow Switch
McDonnell & Miller
$324.95114900 McDonnell & Miller FS4-3T2-3/4 - 3/4" Flow Switch With NPT Body Medium Flow Rate 114900. McDonnell & Miller FS4 Instruction Manual Features: For starting or stopping electrically operated equipment such as signal lights, alarms,...$324.95 -
181905 McDonnell & Miller Relief Valve 250-3/4-60
McDonnell & Miller
$184.95181905 McDonnell & Miller Relief Valve 250-3/4-60. Features and Benefits: For tanks and hydronic heating systems Protects against over-pressure Minimizes hammering with flash steam Low differential pressure – 3 psi (.21 kg/cm2) between...$184.95 -
181525 McDonnell & Miller Relief Valve 250-3/4-50 - 3/4" NPT
McDonnell & Miller
$184.95181525 McDonnell & Miller Relief Valve 250-3/4-50 - 3/4" NPT. Features and Benefits: For tanks and hydronic heating systems Protects against over-pressure Minimizes hammering with flash steam Low differential pressure – 3 psi (.21...$184.95 -
115300 McDonnell & Miller FS4-3T3-1 - 1" Flow Switch
McDonnell & Miller
$351.95115300 McDonnell & Miller FS4-3T3-1 - 1" Flow Switch With NPT Body Low Flow Rate 115300. McDonnell & Miller FS4 Instruction Manual Features: For starting or stopping electrically operated equipment such as signal lights, alarms, motors,...$351.95 -
122800 McDonnell Miller Air Flow Switch Model AF1
McDonnell & Miller
$304.95122800 McDonnell Miller Air Flow Switch Model AF1. 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...$304.95 -
113056 Bell & Gossett 4V Air Vent
Bell & Gossett
$6.95113056 Bell & Gossett 4V Air Vent is a coin operated air vent that is specifically designed for the new types of radiators. A particular feature is that it projects only slightly, being almost flush with the radiator. Maximum working pressure: 150...$6.95 -
115000 McDonnell & Miller FS4-3T3-3/4 - 3/4" Flow Switch
McDonnell & Miller
$324.95McDonnell & Miller FS4-3T3-3/4 - 3/4" Flow Switch With NPT Body Low Flow Rate 115000. McDonnell & Miller FS4 Instruction Manual Features: For starting or stopping electrically operated equipment such as signal lights, alarms, motors,...$324.95 -
144690 McDonnell & Miller RB-24E-L Low Water Cut Off
McDonnell & Miller
$154.95144690 McDonnell & Miller RB-24E-L Low Water Cut Off. This Item Usually Ships The Same Day!$154.95 -
153928 McDonnell & Miller PSE-802-U-24 Low Water Cut Off
McDonnell & Miller
$364.95153928 McDonnell & Miller PSE-802-U-24 Low Water Cut Off. The Series PSE-800 probe type LWCO uses patented technology to monitor changes in water conductivity. When defined parameters are exceeded the new PSE-800 makes a decision to shut the...$364.95 -
123200 McDonnell & Miller AF2 Air Flow Switch Model AF2
McDonnell & Miller
$348.95123200 McDonnell & Miller Air Flow Switch Model AF2. McDonnell & Miller AF1 Flow Switch Instruction Manual For low velocity applications: Paddle fits 8" (203mm) minimum duct size Two electrical knock-outs allow connection from either...$348.95 -
153916 McDonnell & Miller PS-802-U-24 Low Water Cut-Off
McDonnell & Miller
$354.95153916 McDonnell & Miller PS-802-U-24 Low Water Cut-Off. This model has been replaced and the new model is 153928 PSE-802-U-24. This Item Usually Ships The Same Day!$354.95 -
123450 McDonnell & Miller AF3D Air Flow Switch
McDonnell & Miller
$264.95123450 McDonnell & Miller Air Flow Switch Model AF3D. McDonnell & Miller AFE-1 Instruction Manual For general purpose low velocity applications where the most economical flow switch is desired. Paddle fits 8" (203mm) minimum duct...$264.95 -
153929-LWCO McDonnell & Miller PSE-802-RX2-24 Low Water Cut Off
McDonnell & Miller
$328.95153929-LWCO McDonnell & Miller PSE-802-RX2-24 Low Water Cut Off. The Series PSE-800 probe type LWCO uses patented technology to monitor changes in water conductivity. When defined parameters are exceeded the new PSE-800 makes a decision to shut...$328.95 -
114550 McDonnell & Miller FS4-3D 1" Flow Switch
McDonnell & Miller
$358.95McDonnell & Miller FS4-3D 1" Flow Switch 4-3 W/2 SPDT Switches 114550. McDonnell & Miller FS4 Brochure McDonnell & Miller FS4 Instruction Manual Universal design serves the widest variety of applications. For starting or stopping...$358.95 -
113550 McDonnell & Miller FS1-J Flow Switch
McDonnell & Miller
$332.95113550 McDonnell & Miller FS1-J Flow Switch. *Please note image is generic. McDonnell & Miller FS1 Instruction Manual For general purpose applications where high sensitivity is required and moderate or low flow rates are encountered such as...$332.95 -
153601 McDonnell & Miller PSE-801-M-120 Probe Control
McDonnell & Miller
$308.95153601 McDonnell & Miller PSE-801-M-120 Probe Control with manual reset (steam) uses patented technology to monitor changes in water conductivity. When defined parameters are exceeded the new PSE-800 makes a decision to shut the burner off based...$308.95 -
181625 McDonnell & Miller Relief Valve 250-3/4-75
McDonnell & Miller
$184.95181625 McDonnell & Miller Relief Valve 250-3/4-75. Features and Benefits: For tanks and hydronic heating systems Protects against over-pressure Minimizes hammering with flash steam Low differential pressure – 3 psi (.21 kg/cm2)...$184.95