Variable Area Flowmeters

Acrylic Models

Polysulfone Models

Ultrapure Models

Acrylic Models – suitable for direct sunlight

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F-300 Pitot Tube Acrylic
Pipe sizes: 1″, 1¼″, 1½″, 2″, 2½″, 3″, 4″, 6″, 8″
Flow from: 2 to 1900 GPM (8 to 7200 LPM)
Clamp-On – Insertion Mount
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F-400N Machined Acrylic Tube
Pipe sizes: 1/4″, 3/8″ and 1/2″ F/NPT
Flow from: 0.025 to 5 GPM (0.1 to 20 LPM)
Acceptable in Direct Sunlight
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F-410N Machined Acrylic Tube
Pipe sizes: 3/4″ and 1″ F/NPT
Flow from: 1 to 20 GPM (4 to 80 LPM)
Acceptable in Direct Sunlight
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F-420N Machined Acrylic Tube
Pipe sizes: 1″ female NPT fittings
1 1/2″ male NPT fittings
Flow from: 5 to 25 GPM (20 to 100 LPM)
Acceptable in Direct Sunlight
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F-430N Machined Acrylic Tube
Pipe sizes: 1 1/2″ and 2″ female NPT fittings
Flow from: 4 to 100 GPM (15 to 375 LPM)
Acceptable in Direct Sunlight
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F-550 Machined Acrylic Block
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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Pipe sizes: 1″, 1¼″, 1½″, 2″, 2½″, 3″, 4″, 6″, 8″
Flow from: 2 to 1900 GPM (8 to 7200 LPM)
Clamp-On – Insertion Mount

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

Pipe sizes: 3/4″ and 1″ F/NPT
Flow from: 1 to 20 GPM (4 to 80 LPM)
Acceptable in Direct Sunlight

Pipe sizes: 1″ female NPT fittings 1 1/2″ male NPT fittings
Flow from: 5 to 25 GPM (20 to 100 LPM)
Acceptable in Direct Sunlight

Pipe sizes: 1 1/2″ and 2″ female NPT fittings
Flow from: 4 to 100 GPM (15 to 375 LPM)
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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Pipe sizes: 3/8″ , 1/2″ , 3/4″ male NPT
Flow from: .025 to 5 GPM (0.1 to 37.5 LPM)
Compact Size – Tight Installations

Pipe sizes: 3/8″ female NPT 1/2″ , 3/4″ male NPT
Flow from: 0.1 to 10 GPM (.4 to 40 LPM)
Panel Mount, Adjustable, and Brass Adapters Available

Pipe sizes: 1″ female NPT (Polysulfone) 1-1/2″ female NPT (PVC)
Flow from: 0.5 to 40 GPM (2 to 155 LPM)
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 fittings 1/2″ and 3/4″ socket fusion fittings
Flow from: .1 to 5.0 GPM (.4 to 20.0 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

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

Model Comparison Chart

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Acrylic Models – suitable for direct sunlight

F-300 Pitot Tube Acrylic

F-400N Machined Acrylic Tube

F-410N Machined Acrylic Tube

F-420N Machined Acrylic Tube

F-430N Machined Acrylic Tube

F-550 Machined Acrylic Block

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

F-440 Polysulfone Molded

F-450N Polysulfone Molded

F-451 Polysulfone Molded

F-452N Polysulfone Molded

Ultrapure – not recommended for direct sunlight

F-460 Polysulfone Molded

F-462 Polysulfone Molded

F-461 Polysulfone Molded

Model Comparison Chart

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