F-440 & F-450 Series Flowmeters On F.W. Webb Company Thermoplastic Piping Div.

High performance Polysulfone meter body and adapters. Viton O-ring seals. Corrosion and wear resistant internal parts. Configurations for both in-line and panel mount installation requirements. Optional integral flow adjustment valve. Permanent screen printed scales. Not recommended for direct sunlight applications. Dual scale: gallons per minute and liters per minute (GPM/LPM). Single scale for gallons per hour (GPH).

Temperature: 212°F/100°C at 0 pressure
Pressure: 150 psi/10.3 Bar at 70°F/21°C
Full Scale Accuracy: ± 5%
Meter Body material: Polysulfone
Adapters material: Polysulfone
O-rings: Viton
Float material: #316 SS (Hastelloy C, PTFE & PVC materials available depending on calibration)
Max. Pressure drop: 2 psi

Webb/P#	Item #	Item Name	Calibration	Calibration (Air)	Adapter Size	Price	Add To Cart/Request Quote
N/A 230276	F-44250L-6	N/A FlowMeterF440 InLine 3/8 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 3/8 inches	$74.51	Add To Cart Request Quote
N/A 428723	F-44250LE-6	N/A FlowMeterF440 PanelMount 3/8 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 3/8 inches	$89.63	Add To Cart Request Quote
N/A 428721	F-44250LA-6	N/A FlowMeterF440 ADJ MDL 3/8 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 3/8 inches	$133.04	Add To Cart Request Quote
N/A 428724	F-44250LK-6	N/A FlowMeterF440 K-Series InLine 3/8 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 3/8 inches	$92.19	Add To Cart Request Quote
N/A 428728	F-44250LKE-6	N/A FlowMeter K-Series Panel Mount 3/8 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 3/8 inches	$142.20	Add To Cart Request Quote
N/A 428726	F-44250LKA-6	N/A FlowMeterF440 K-Series Adj Mount 3/8 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 3/8 inches	$172.86	Add To Cart Request Quote
N/A 230277	F-44250L-8	N/A FlowMeterF440 InLine 1/2 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 1/2 inches	$74.51	Add To Cart Request Quote
N/A 230279	F-44250LE-8	N/A FlowMeterF440 PanelMount 1/2 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 1/2 inches	$89.63	Add To Cart Request Quote
N/A 428722	F-44250LA-8	N/A FlowMeterF440 ADJ MDL 1/2 FNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 1/2 inches	$133.04	Add To Cart Request Quote
N/A 428725	F-44250LK-8	N/A FlowMeterF440 K-Series InLine 1/2 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 1/2 inches	$92.19	Add To Cart Request Quote
N/A 428729	F-44250LKE-8	N/A FlowMeterF440 K-Series Panel Mount 1/2 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 1/2 inches	$107.33	Add To Cart Request Quote
N/A 428727	F-44250LKA-8	N/A FlowMeterF440 K-Series Adj Mount 1/2 MNPT Vert .025-.25gpm	N/A .025 to .250 GPM0.1 to 1.0 LPM	N/A	N/A 1/2 inches	$172.86	Add To Cart Request Quote
N/A 230284	F-44375L-6	N/A FlowMeterF440 InLine 3/8 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 3/8 inches	$74.51	Add To Cart Request Quote
N/A 428745	F-44375LE-6	N/A FlowMeterF440 PanelMount 3/8 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 3/8 inches	$89.63	Add To Cart Request Quote
N/A 428742	F-44375LA-6	N/A FlowMeterF440 ADJ MDL 3/8 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 3/8 inches	$133.04	Add To Cart Request Quote
N/A 428746	F-44375LK-6	N/A FlowMeterF440 K-Series InLine 3/8 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 3/8 inches	$92.19	Add To Cart Request Quote
N/A 428748	F-44375LKA-6	N/A FlowMeterF440 K-Series Adjustable 3/8 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 3/8 inches	$172.86	Add To Cart Request Quote
N/A 230282	F-44375L-8	N/A FlowMeterF440 InLine Mount 1/2 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 1/2 inches	$74.51	Add To Cart Request Quote
N/A 435778	F-44375LE-8	N/A FlowMeterF440 PanelMount 1/2 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 1/2 inches	$89.63	Add To Cart Request Quote
N/A 428743	F-44375LA-8	N/A FlowMeterF440 ADJ MDL 1/2 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 1/2 inches	$133.04	Add To Cart Request Quote
N/A 428747	F-44375LK-8	N/A FlowMeterF440 K-Series InLine 1/2 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 1/2 inches	$92.19	Add To Cart Request Quote
N/A 428749	F-44375LKA-8	N/A FlowMeterF440 K-Series Adjustable 1/2 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 1/2 inches	$172.86	Add To Cart Request Quote
N/A 428744	F-44375LB-8	N/A FlowMeterF440 Sweat 1/2 MNPT Vert .1-1.0gpm	N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM	N/A	N/A 1/2 inches	$90.74	Add To Cart Request Quote
N/A 435779	F-44376L-6	N/A FlowMeterF440 InLine 3/8 MNPT Vert .2-2.0gpm	N/A 0.2 to 2.0 GPM0.75 to 7.5 LPM	N/A	N/A 3/8 inches	$74.51	Add To Cart Request Quote
N/A 428754	F-44376LE-6	N/A FlowMeterF440 PanelMount 3/8 MNPT Vert .2-2.0gpm	N/A 0.2 to 2.0 GPM0.75 to 7.5 LPM	N/A	N/A 3/8 inches	$89.63	Add To Cart Request Quote

Webb/P#

Item #

Item Name

Calibration

Calibration (Air)

Adapter Size

Price

Add To Cart/Request Quote

N/A 230276

F-44250L-6

N/A FlowMeterF440 InLine 3/8 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 3/8 inches

$74.51

Add To Cart
Request Quote

N/A 428723

F-44250LE-6

N/A FlowMeterF440 PanelMount 3/8 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 3/8 inches

$89.63

Add To Cart
Request Quote

N/A 428721

F-44250LA-6

N/A FlowMeterF440 ADJ MDL 3/8 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 3/8 inches

$133.04

Add To Cart
Request Quote

N/A 428724

F-44250LK-6

N/A FlowMeterF440 K-Series InLine 3/8 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 3/8 inches

$92.19

Add To Cart
Request Quote

N/A 428728

F-44250LKE-6

N/A FlowMeter K-Series Panel Mount 3/8 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 3/8 inches

$142.20

Add To Cart
Request Quote

N/A 428726

F-44250LKA-6

N/A FlowMeterF440 K-Series Adj Mount 3/8 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 3/8 inches

$172.86

Add To Cart
Request Quote

N/A 230277

F-44250L-8

N/A FlowMeterF440 InLine 1/2 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 1/2 inches

$74.51

Add To Cart
Request Quote

N/A 230279

F-44250LE-8

N/A FlowMeterF440 PanelMount 1/2 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 1/2 inches

$89.63

Add To Cart
Request Quote

N/A 428722

F-44250LA-8

N/A FlowMeterF440 ADJ MDL 1/2 FNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 1/2 inches

$133.04

Add To Cart
Request Quote

N/A 428725

F-44250LK-8

N/A FlowMeterF440 K-Series InLine 1/2 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 1/2 inches

$92.19

Add To Cart
Request Quote

N/A 428729

F-44250LKE-8

N/A FlowMeterF440 K-Series Panel Mount 1/2 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 1/2 inches

$107.33

Add To Cart
Request Quote

N/A 428727

F-44250LKA-8

N/A FlowMeterF440 K-Series Adj Mount 1/2 MNPT Vert .025-.25gpm

N/A .025 to .250 GPM0.1 to 1.0 LPM

N/A

N/A 1/2 inches

$172.86

Add To Cart
Request Quote

N/A 230284

F-44375L-6

N/A FlowMeterF440 InLine 3/8 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 3/8 inches

$74.51

Add To Cart
Request Quote

N/A 428745

F-44375LE-6

N/A FlowMeterF440 PanelMount 3/8 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 3/8 inches

$89.63

Add To Cart
Request Quote

N/A 428742

F-44375LA-6

N/A FlowMeterF440 ADJ MDL 3/8 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 3/8 inches

$133.04

Add To Cart
Request Quote

N/A 428746

F-44375LK-6

N/A FlowMeterF440 K-Series InLine 3/8 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 3/8 inches

$92.19

Add To Cart
Request Quote

N/A 428748

F-44375LKA-6

N/A FlowMeterF440 K-Series Adjustable 3/8 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 3/8 inches

$172.86

Add To Cart
Request Quote

N/A 230282

F-44375L-8

N/A FlowMeterF440 InLine Mount 1/2 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 1/2 inches

$74.51

Add To Cart
Request Quote

N/A 435778

F-44375LE-8

N/A FlowMeterF440 PanelMount 1/2 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 1/2 inches

$89.63

Add To Cart
Request Quote

N/A 428743

F-44375LA-8

N/A FlowMeterF440 ADJ MDL 1/2 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 1/2 inches

$133.04

Add To Cart
Request Quote

N/A 428747

F-44375LK-8

N/A FlowMeterF440 K-Series InLine 1/2 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 1/2 inches

$92.19

Add To Cart
Request Quote

N/A 428749

F-44375LKA-8

N/A FlowMeterF440 K-Series Adjustable 1/2 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 1/2 inches

$172.86

Add To Cart
Request Quote

N/A 428744

F-44375LB-8

N/A FlowMeterF440 Sweat 1/2 MNPT Vert .1-1.0gpm

N/A 0.1 to 1.0 GPM0.4 to 4.0 LPM

N/A

N/A 1/2 inches

$90.74

Add To Cart
Request Quote

N/A 435779

F-44376L-6

N/A FlowMeterF440 InLine 3/8 MNPT Vert .2-2.0gpm

N/A 0.2 to 2.0 GPM0.75 to 7.5 LPM

N/A

N/A 3/8 inches

$74.51

Add To Cart
Request Quote

N/A 428754

F-44376LE-6

N/A FlowMeterF440 PanelMount 3/8 MNPT Vert .2-2.0gpm

N/A 0.2 to 2.0 GPM0.75 to 7.5 LPM

N/A

N/A 3/8 inches

$89.63

Add To Cart
Request Quote