Series VF Visi-Float® Acrylic Flowmeter

Visi-Float® Acrylic Flowmeter
Used to Indicate or Manually Control Air or Water Flow

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Description

Used to Indicate or Manually Control Air or Water Flow

The SERIES VF Visi–Float® flowmeter bodies are cut and precision machined from solid, clear acrylic plastic blocks. This construction not only produces a handsome finished product, but permits complete visual inspection. As a result, the Visi-Float® flowmeters are especially popular for medical and laboratory equipment applications.

SCALES ARE EASY TO READ - The front scale location and white background provides excellent visibility. The direct reading scales are hot stamped into the plastic and will not wear off. Mid-range calibration is established with a master flowmeter. Accuracy is ±5% of FS for VFA models, ±3% for VFB. Scales average 2" long on the VFA models, 4" long on VFB.

DURABLE AND ATTRACTIVE CONSTRUCTION - The machined acrylic bodies of the Visi-Float® flowmeters are practically unbreakable. Fabrication is backed by over 60 years of experience in acrylic instrument machining. The tapered bore is precision machined to a smooth surface that provides perfect visibility of the indicating float. The VFA and VFB models are available with either brass or stainless steel inlet and outlet connections and are tapped for 1/8" NPT thread. VFB models 85 and 86 have either 1/4" back or 3/8" end connections. All standard models employ Buna-N o-rings for leak proof operation and are available with either back or end connections for horizontal or vertical piping. Precision metering valves in brass or stainless steel are available for most VFA and VFB models.

EASY INSTALLATION - All Visi–Float® flowmeters have metal mounting inserts on rear for panel mounting. They can also be supported directly by system piping.

More Information

Model Chart

Series VFA - 2" Scale

EXAMPLE	VFA	1	AT	Series VFA-1-AT Visi-Float® Flowmeter, 2" scale, range .1-1 SCFH air, with aluminum tag.
SERIES	VFA			Visi-Float® Flowmeter, 2" Scale
RANGE		1 2 3 4 5 6 7 8 9 21 22 23 24 25 26 27 32 33 34 41 42 43 44		.1-1 SCFH Air .2-2 SCFH Air .6-5 SCFH Air 1-10 SCFH Air 2-20 SCFH Air 4-30 SCFH Air 5-50 SCFH Air 10-100 SCFH Air 20-200 SCFH Air .06-0.5 LPM Air .15-1 LPM Air .6-5 LPM Air 1-10 LPM Air 3-25 LPM Air 6-50 LPM Air 10-100 LPM Air 6-50 cc/min Water 10-100 cc/min Water 20-200 cc/min Water .6-5 GPH Water 2-10 GPH Water 3-20 GPH Water 8-40 GPH Water
OPTIONS			ARB AT BV EC NIST PF PTFE SPCL SS SSV VIT WL	Arbitrary Scale Aluminum Tag Brass Valve* End Connections NIST Traceable Calibration Certificate Pointer Flag PTFE Valve Seat (use with 100% oxygen and all ozone applications) Special Cleaning Stainless Steel Wetted parts Stainless Steel Valve* Fluoroelastomer O-rings Without Logo

Series VFB - 4" Scale

EXAMPLE	VFB	50	AT	Series VFB-50-AT Visi-Float® Flowmeter, 4" scale, range .3-3 SCFH air, with aluminum tag.
SERIES	VFB			Visi-Float® Flowmeter, 4" Scale
RANGE		50 51 52 53 54 55 60 65 66 67 68 69 80 81 82 83 84 85 86 90 91 51D 53D 54D 55D 80D 83D 91D 92D 93D 94D		.3-3 SCFH Air 2-20 SCFH Air 4-40 SCFH Air 10-100 SCFH Air 15-150 SCFH Air 20-200 SCFH Air 100-1000 cc/min Air .2-4 LPM Air 1-10 LPM Air 1-20 LPM Air 3-30 LPM Air 4-40 LPM Air .5-12 GPH Water 6-60 GPH Water 2-30 cc/min Water 1-20 GPH Water 6-40 GPH Water .2-2 GPM Water .6-5 GPM Water .3-3 SCFM Air 1-10 SCFH Air 2-20 SCFH & 0.5-9.5 LPM Air 10-100 SCFH & 6-48 LPM Air 15-150 SCFH & 5-70 LPM Air 40-200 SCFH & 20-95 LPM Air 0.5-12 GPH & 0.04-0.74 LPM Water 1-20 GPH & 0.1-1.3 LPM Water 1-10 SCFH & 0.6-4.8 LPM Air 0.6-5 SCFH & 0.3-2.5 LPM Air 6-50 SCFH & 3-23 LPM Air 10-100 GPH & 0.5-6.5 LPM Water
OPTIONS			ARB AT BV EC NIST PF PTFE SPCL SS SSV VIT WL	Arbitrary Scale Aluminum Tag Brass Valve* End Connections NIST Traceable Calibration Certificate Pointer Flag PTFE Valve Seat (use with 100% oxygen and all ozone applications) Special Cleaning Stainless Steel Wetted parts Stainless Steel Valve* Fluoroelastomer O-rings Without Logo

*Valve is designed for flow adjustment only, not intended to be used as an open/shut-off valve.

Specifications

Service:Compatible gases and liquids.

Wetted Materials:Body: acrylic plastic; O-ring: Buna-N (fluoroelastomer available); Metal parts: brass standard, stainless steel optional; Float: stainless steel, black glass, aluminum, K monel depending on range.

Temperature & Pressure Limits:Without Valve: 100 psig (6.9 bar) @ 150°F (65°C); 150 psig (10 bar) @ 100°F (38°C); With Valve: 100 psig (6.9 bar) @ 120°F (48°C).

Accuracy:VFA = 5% of FS; VFB = 3% of FS.

Process Connection:1/8" female NPT. VFB ranges 85 and 86 have 1/4" NPT back connections or 3/8" NPT end connections. These ranges not available with brass valves.

Scale Length:VFA 2" typical length; VFB 4" typical length.

Mounting Orientation:Mount in vertical position.

Weight:VFA: 4.0 to 4.8 oz (.11 to .14 kg); VFB: 7.2 to 8.8 oz (.20 to .25 kg).

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