pressure & flow control valves

We offer a wide variety of pressure and flow control valves from top-notch manufacturers such as Hayward and Bell & Gossett. 300+ products available!
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Apollo Products Apollo Products ValvesBell & Gossett Bell & Gossett ValvesHayward Hayward ValvesHayward Flow Control Hayward Flow Control Valves Hydrolevel/Safeguard Valves Hydronic Caleffi ValvesMcdonnell Miller Mcdonnell Miller ValvesWatts Watts Valves
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View Details Mcdonnell Miller 172831 Flow Switch FS7-4J Single Pole Double Throw 1-1/4 Inch BSPT | Blackhawk Supply
172831 | Flow Switch FS7-4J Single Pole Double Throw 1-1 / 4 Inch BSPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 172831
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View Details Mcdonnell Miller 172830 Flow Switch FS4-3J Single Pole Double Throw 1 Inch BSPT | Blackhawk Supply
172830 | Flow Switch FS4-3J Single Pole Double Throw 1 Inch BSPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 172830
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View Details Mcdonnell Miller 172829 Flow Switch FS1-J Single Pole Double Throw 1/2 Inch BSPT | Blackhawk Supply
172829 | Flow Switch FS1-J Single Pole Double Throw 1 / 2 Inch BSPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 172829
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View Details Mcdonnell Miller 169400 Water Feeder Electric 1/2 Inch NPT 120 Volt 169400 | Blackhawk Supply
169400 | Water Feeder Electric 1 / 2 Inch NPT 120 Volt 169400 | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 169400
each
View Details Mcdonnell Miller 144682 Wiring Harness for RB-24E-S | Blackhawk Supply
144682 | Wiring Harness for RB-24E-S | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 144682
$603.98 each
View Details Mcdonnell Miller 126800 Water Feeder 25A | Blackhawk Supply
126800 | Water Feeder 25A | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 126800
$74.74 each
View Details Mcdonnell Miller 123450 Flow Switch AF3-D with 2 Single Pole Double Throw Switches | Blackhawk Supply
123450 | Flow Switch AF3-D with 2 Single Pole Double Throw Switches | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 123450
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View Details Mcdonnell Miller 123400 Flow Switch AF3 Medium Velocity Single Pole Double Throw | Blackhawk Supply
123400 | Flow Switch AF3 Medium Velocity Single Pole Double Throw | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 123400
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View Details Mcdonnell Miller 123200 Flow Switch AF2 Low Velocity Single Pole Double Throw | Blackhawk Supply
123200 | Flow Switch AF2 Low Velocity Single Pole Double Throw | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 123200
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View Details Mcdonnell Miller 123010 Flow Switch AFE1-1 with NEMA 7/9 Enclosure Single Pole Double Throw | Blackhawk Supply
123010 | Flow Switch AFE1-1 with NEMA 7 / 9 Enclosure Single Pole Double Throw | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 123010
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View Details Mcdonnell Miller 122920 Flow Switch AF1-J with Corrosion Coating Single Pole Double Throw | Blackhawk Supply
122920 | Flow Switch AF1-J with Corrosion Coating Single Pole Double Throw | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 122920
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View Details Mcdonnell Miller 122800 Flow Switch AF1 Single Pole Double Throw | Blackhawk Supply
122800 | Flow Switch AF1 Single Pole Double Throw | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 122800
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View Details Mcdonnell Miller 120191 Flow Switch FS7-4SW Stainless Steel Body NEMA 4X Enclosure Single Pole Double Throw 1-1/4 Inch NPT | Blackhawk Supply
120191 | Flow Switch FS7-4SW Stainless Steel Body NEMA 4X Enclosure Single Pole Double Throw 1-1 / 4 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 120191
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View Details Mcdonnell Miller 120160 Flow Switch FS7-4S with Stainless Steel Body Single Pole Double Throw 1-1/4 Inch NPT | Blackhawk Supply
120160 | Flow Switch FS7-4S with Stainless Steel Body Single Pole Double Throw 1-1 / 4 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 120160
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View Details Mcdonnell Miller 120150 Flow Switch FS7-4EL with Extended Paddle/Arm Single Pole Double Throw 1-1/4 Inch NPT | Blackhawk Supply
120150 | Flow Switch FS7-4EL with Extended Paddle / Arm Single Pole Double Throw 1-1 / 4 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 120150
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View Details Mcdonnell Miller 120100 Flow Switch FS7-4E Single Pole Double Throw with NEMA 7/9 Enclosure 1-1/4 Inch NPT | Blackhawk Supply
120100 | Flow Switch FS7-4E Single Pole Double Throw with NEMA 7 / 9 Enclosure 1-1 / 4 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 120100
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View Details Mcdonnell Miller 119900 Flow Switch FS7-4L with Extended Paddle/Arm Single Pole Double Throw 1-1/4 Inch NPT | Blackhawk Supply
119900 | Flow Switch FS7-4L with Extended Paddle / Arm Single Pole Double Throw 1-1 / 4 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 119900
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View Details Mcdonnell Miller 115200 Flow Switch FS4-3T2-1 Single Pole Double Throw 1 Inch NPT | Blackhawk Supply
115200 | Flow Switch FS4-3T2-1 Single Pole Double Throw 1 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 115200
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View Details Mcdonnell Miller 115100 Flow Switch FS4-3T1-1 Single Pole Double Throw 1 Inch NPT | Blackhawk Supply
115100 | Flow Switch FS4-3T1-1 Single Pole Double Throw 1 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 115100
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View Details Mcdonnell Miller 114900 Flow Switch FS4-3T2-3/4 Single Pole Double Throw 3/4 Inch NPT | Blackhawk Supply
114900 | Flow Switch FS4-3T2-3 / 4 Single Pole Double Throw 3 / 4 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 114900
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View Details Mcdonnell Miller 114763 Flow Switch FS5-3/4 with 2 Single Pole Double Throw Switches 3/4 Inch NPT | Blackhawk Supply
114763 | Flow Switch FS5-3 / 4 with 2 Single Pole Double Throw Switches 3 / 4 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 114763
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View Details Mcdonnell Miller 114642 Flow Switch FS4-3DS with 2 Single Pole Double Throw Switches 1 Inch NPT | Blackhawk Supply
114642 | Flow Switch FS4-3DS with 2 Single Pole Double Throw Switches 1 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 114642
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View Details Mcdonnell Miller 113601 Flow Switch FS1-W High Sensitivity Single Pole Double Throw 1/2 Inch NPT | Blackhawk Supply
113601 | Flow Switch FS1-W High Sensitivity Single Pole Double Throw 1 / 2 Inch NPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 113601
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View Details Mcdonnell Miller 113550 Flow Switch FS1-J High Sensitivity Single Pole Double Throw 1/2 Inch BSPT | Blackhawk Supply
113550 | Flow Switch FS1-J High Sensitivity Single Pole Double Throw 1 / 2 Inch BSPT | Mcdonnell Miller
Brand: Mcdonnell Miller
SKU: 113550
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Type
A
Application
B
Body Material
Body Pattern
C
Class
Connection Type
Connection Method
Cv Coefficient
Cv Factor
D
Diaphragm Material
E
End Connection
End Connection Type
F
G
H
L
Material
Max Pressure (PSI)
Part Number
Pipe Size
Pressure
Pressure Rating
Product Type
Seal
Sealing Material
Seals
Seats
Series
Size
Sub Category
SubCategory
Subtype
Temperature
Used on
Voltage
d1
d2
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