Product Description
3–25 LPM Air Acrylic Flowmeter with Brass Valve – Visi-Float® VFA-25-BV
The Series VF Visi-Float® VFA-25-BV Flowmeter delivers reliable ultra-low-range air-flow indication and manual control in laboratory, medical, and industrial systems. This model integrates a precision brass metering valve for smooth adjustment while retaining the Visi-Float® family’s rugged clear-acrylic construction and long-term repeatability.
Hot-stamped direct-reading scales, a white float background, and a tapered measuring bore provide fast visual confirmation and dependable performance without electronics or power requirements.
Flow Range, Accuracy & Operating Limits
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Air Flow Range: 3–25 LPM
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Scale Length: 2 in
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Accuracy: ±5% F.S. (VFA models)
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Service: Compatible gases & liquids
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Mounting Orientation: Vertical only
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Pressure / Temperature Limits:
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100 PSIG @ 150°F (no valve)
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100 PSIG @ 120°F (with valve)
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Construction & Wetted Materials
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Body: Clear acrylic
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O-Rings: Buna-N (fluoroelastomer optional)
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Metal Parts: Nickel-plated brass
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Float: Stainless steel / glass / aluminum (range-dependent)
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Integrated Valve: Brass metering valve
Process Connections & Mounting
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Connection: 1/8″ Female NPT
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Mounting: Vertical orientation
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Pipe Support: Metal mounting inserts
Typical Applications
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Ultra-low air-flow regulation
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Medical devices
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Laboratory systems
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Gas analyzers
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Pollution monitoring
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Chemical injection
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Cabinet purging
Why Choose the Visi-Float® VFA-25-BV?
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Integrated brass valve simplifies plumbing
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Low-range capability for fine flow control
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Direct-reading scale eliminates conversions
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Clear acrylic body allows inspection
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Precision-machined bore ensures repeatability
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Compact panel footprint
Compliance & Approvals
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RoHS II compliant (EU Directive 2011/65/EU)
Shipping Information
Ships in 1–2 business days, subject to availability.
