Product Description
Low-Flow Air Measurement for OEM Panels & Process Systems
The Series VF Visi-Float® Acrylic Flowmeter (VFA-3) is a precision low-flow air meter designed for installations that already include upstream control valves or automated flow regulation. With a 0.6–5 SCFH air range and a compact 2-inch vertical scale, this model delivers clear visual verification and repeatable measurement without an integrated needle valve—making it ideal for analyzer cabinets, OEM assemblies, laboratory panels, and purge-air monitoring systems.
Manufactured from optically clear acrylic and machined with a precision-tapered bore, the VFA-3 provides direct-reading performance with minimal pressure drop and long-term reliability in continuous-duty environments.
Why Buyers Choose the VFA-3 (No-Valve Configuration)
• Designed for systems with external flow control
• Accurate 0.6–5 SCFH air measurement
• Clear acrylic body for fast visual inspection
• Compact 2" panel-mount format
• Direct-reading scale—no calculations required
• Excellent repeatability for sampling lines
• RoHS-compliant construction
• Proven OEM-grade platform
Common Applications
• Gas analyzer cabinets
• Environmental air sampling systems
• OEM process panels
• Cabinet purge circuits
• Pollution monitoring equipment
• Laboratory instrumentation
• Industrial test stands
Key Specifications
Flow Range: 0.6–5 SCFH Air
Scale Length: 2"
Valve: None (external control required)
Process Connection: 1/8" FNPT
Mounting Orientation: Vertical
Accuracy: ±5% FS (VFA series)
Pressure Rating: 100 psig (no valve)
Body Material: Clear acrylic
Float Options: Stainless steel / glass / aluminum
Compliance: RoHS II
Who This Model Is For
This configuration is ideal for:
✔️ engineers designing analyzer enclosures
✔️ OEMs standardizing flow indication
✔️ labs running controlled purge lines
✔️ maintenance teams replacing inline air meters
✔️ procurement groups sourcing rotameters without integrated valves
