Variable Area Flowmeters

Acrylic Models – suitable for direct sunlight

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F-300 Pitot Tube Acrylic Flowmeter

Flow Range: 2 – 1900 GPM
8 – 7200 LPM

Pipe sizes: 1″ up to 8″

Clamp-On – Insertion Mount

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FLOWREAD™ Pool Efficiency Flowmeter

Flow Range: 10 – 150 GPM

Pipe sizes: 1½″, 2″, 2½″

Clamp-On – Insertion Mount

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F-400N Machined Acrylic Flowmeter

Flow Range: 0.025 – 5 GPM
0.1 – 20 LPM

Pipe sizes: 1/4″, 3/8″ and 1/2″ F/NPT

Acceptable in Direct Sunlight

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F-410N Machined Acrylic Flowmeter

Flow Range: 1 – 20 GPM
4 – 80 LPM

Pipe sizes: 3/4″ and 1″ F/NPT

Acceptable in Direct Sunlight

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F-420N Machined Acrylic Flowmeter

Flow Range: 5 – 25 GPM
20 – 100 LPM

Pipe sizes: 1″ female NPT fittings
1 1/2″ male NPT fittings

Acceptable in Direct Sunlight

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F-430N Machined Acrylic Flowmeter

Flow Range: 4 – 100 GPM
15 – 375 LPM

Pipe sizes: 1 1/2″ FNPT
2″ FNPT

Acceptable in Direct Sunlight

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F-550 Acrylic Flowmeter

Pipe sizes: 1/4″, 3/8″, 3/4″ and 1″ male NPT
1/2″ hose barb

Flow from: 0.025 to 20 GPM (0.1 to 75 LPM)

Panel Mount
Adjustable Valve Available

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Flow Range: 2 – 1900 GPM 8 – 7200 LPM
Pipe sizes: 1″ up to 8″
Clamp-On – Insertion Mount

Flow Range: 10 – 150 GPM
Pipe sizes: 1½″, 2″, 2½″
Clamp-On – Insertion Mount

Flow Range: 0.025 – 5 GPM 0.1 – 20 LPM
Pipe sizes: 1/4″, 3/8″ and 1/2″ F/NPT
Acceptable in Direct Sunlight

Flow Range: 1 – 20 GPM 4 – 80 LPM
Pipe sizes: 3/4″ and 1″ F/NPT
Acceptable in Direct Sunlight

Flow Range: 5 – 25 GPM 20 – 100 LPM
Pipe sizes: 1″ female NPT fittings 1 1/2″ male NPT fittings
Acceptable in Direct Sunlight

Flow Range: 4 – 100 GPM 15 – 375 LPM
Pipe sizes: 1 1/2″ FNPT 2″ FNPT
Acceptable in Direct Sunlight

Pipe sizes: 1/4″, 3/8″, 3/4″ and 1″ male NPT 1/2″ hose barb
Flow from: 0.025 to 20 GPM (0.1 to 75 LPM)
Panel Mount Adjustable Valve Available

High Temp / High Pressure Models – not recommended for direct sunlight

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Flow Range: .025 – 5 GPM 0.1 – 37.5 LPM
Pipe sizes: 3/8″ , 1/2″ , 3/4″ male NPT
Compact Size – Tight Installations

Flow Range: 0.1 – 10 GPM .4 – 40 LPM
Pipe sizes: 3/8″ FNPT, 1/2″, 3/4″ MNPT
Panel Mount, Adjustable, and Brass Adapters Available

Flow Range: 0.5 – 40 GPM 2 – 155 LPM
Pipe sizes: 1″, 1-1/2″ FNPT
Panel Mount, Shield, and Brass Adapters Available

Pipe sizes: 2″ F/NPT 2″ socket fusion
Flow from: 2 to 175 GPM (8 to 675 LPM)
High Volume

Ultrapure – not recommended for direct sunlight

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Pipe sizes: 1/2″ and 3/4″ female NPT 1/2″ and 3/4″ socket fusion
Flow from: .1 to 5.0 GPM (.4 to 20.0 LPM)
No Metal – UltraPure Applications

Pipe sizes: 1″ female NPT fittings 1″ socket fusion fittings
Flow from: 1 to 35 GPM (4 to 130 LPM)
No Metal – UltraPure Applications

Pipe sizes: 2″ female NPT fittings 2″ socket fusion 63mm Butt Fusion
Flow from: 2 to 80 GPM (8 to 300 LPM)
No Metal – UltraPure Applications

Model Comparison Chart

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Acrylic Models – suitable for direct sunlight

F-300 Pitot Tube Acrylic Flowmeter

FLOWREAD™ Pool Efficiency Flowmeter

F-400N Machined Acrylic Flowmeter

F-410N Machined Acrylic Flowmeter

F-420N Machined Acrylic Flowmeter

F-430N Machined Acrylic Flowmeter

F-550 Acrylic Flowmeter

High Temp / High Pressure Models – not recommended for direct sunlight

F-440 Polysulfone Molded Flowmeter

F-450N Polysulfone Molded Flowmeter

F-451 Polysulfone Molded Flowmeter

F-452N Polysulfone Molded Flowmeter

Ultrapure – not recommended for direct sunlight

F-460 Polysulfone Molded Flowmeter

F-461 Polysulfone Molded Flowmeter

F-462 Polysulfone Molded Flowmeter

Model Comparison Chart

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