Series VFC & VFCII Visi-Float® Acrylic Flowmeter

Used to Indicate Air or Water Flow, End Connections

The SERIES VFC Visi-Float® Flowmeter is a direct reading, precision machined, clear acrylic body flowmeter suitable for both gas and liquid applications. This Series consists of two 5" (127 mm) scale flowmeters, the VFC and VFC II. The VFC features PVC 1" female NPT connections and the VFC II units are equipped with acetal thermoplastic 1" male NPT fittings.

Product Applications

  • Medical equipment
  • Laboratory equipment
  • Air samplers
  • Gas analyzers
  • Pollution monitors
  • Chemical injectors
  • Cabinet purging
  • Remediation
  • Osmosis skids

Models & Ordering

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Build Your Custom Part. Use our Product Configurator

Model Description Usually Ships Price Order
VFC-121
Ships: Same Day
Price: $80.00
Flowmeter, range 4-25 SCFM air. Same Day $80.00 Order
VFC-122
Ships: Same Day
Price: $80.00
Flowmeter, range 5-50 SCFM air. Same Day $80.00 Order
VFC-123
Ships: Same Day
Price: $80.00
Flowmeter, range 10-100 SCFM air. Same Day $80.00 Order
VFC-131
Ships: Same Day
Price: $80.00
Flowmeter, range 100-700 LPM air. Same Day $80.00 Order
VFC-132
Ships: 1-2 Weeks
Price: $80.00
Flowmeter, range 200-1400 LPM air. 1-2 Weeks $80.00 Order
VFC-133
Ships: 1-2 Weeks
Price: $80.00
Flowmeter, range 300-2800 LPM air. 1-2 Weeks $80.00 Order
VFC-141
Ships: Same Day
Price: $80.00
Flowmeter, range .5-5 GPM water. Same Day $80.00 Order
VFC-142
Ships: Same Day
Price: $80.00
Flowmeter, range 1-10 GPM water. Same Day $80.00 Order
VFC-143
Ships: Same Day
Price: $80.00
Flowmeter, range 2-20 GPM water. Same Day $80.00 Order
VFC-151
Ships: Same Day
Price: $80.00
Flowmeter, range 2-20 LPM water. Same Day $80.00 Order
VFC-152
Ships: 1-2 Weeks
Price: $80.00
Flowmeter, range 4-40 LPM water. 1-2 Weeks $80.00 Order
VFC-153
Ships: 1-2 Weeks
Price: $80.00
Flowmeter, range 10-75 LPM water. 1-2 Weeks $80.00 Order

Can't find what you need? Build Your Custom Part. Use our Product Configurator

Specifications

Service:
Compatible gases and liquids.
Wetted Materials:
Body: Acrylic plastic; O-ring: Buna-N (fluoroelastomer available); Metal parts: SS; Float: SS.
Temperature & Pressure Limits:
100 psig (6.9 bar) @ 120°F (48°C);
Accuracy:
2% of FS.
Process Connection:
VFC: 1" female NPT back connections. End connections optional. VFCII: 1" male NPT back connections. End connections optional.
Scale Length:
5" typical length.
Mounting Orientation:
Mount in vertical position.
Weight:
24 to 25 oz (.68 to .71 kg).
Agency Approvals:
Meets the technical requirements of EU Directive 2011/65/EU (RoHS II).

Features

  • Bodies are cut and precision machined from solid, clear acrylic blocks allowing for complete visual inspection
  • White background allows for better visibility of the float increasing reading accuracy
  • Direct reading scales are hot stamped into the plastic eliminating the need for troublesome conversions and increasing product operating life
  • Precision machined tapered bore enables high repeatability
  • Low installation costs with back or end connection options

Options

  • -EC End Connections.
  • -VIT Fluoroelastomer O-rings.
  • -FDA 316SS Float & Guide Rod (only available on VFCII with Fluoroelastomer O-rings).

Videos

Model Chart

EXAMPLE VFC 121 AT Series VFC-121-AT Visi-Float® Flowmeter, female fittings, range 2.5-25 SCFM air, with aluminum tag.
SERIES VFC
VFCII
    Visi-Float® Flowmeter, Female Fittings
Visi-Float® Flowmeter, Male Fittings
RANGE   121
122
123
131
132
133
141
142
143
151
152
153
  4-25 SCFM Air
5-50 SCFM Air
10-100 SCFM Air
100-700 LPM Air
200-1400 LPM Air
300-2800 LPM Air
.5-5 GPM Water
1-10 GPM Water
2-20 GPM Water
2-20 LPM Water
4-40 LPM Water
10-75 LPM Water
OPTIONS     ARB
AT
BSPT
EC
FDA
NIST
SPCL
VIT
WL
Arbitrary Scale
Aluminum Tag
BSPT Process Connection
End Connections
316SS Wetted Parts (VFCII only)
NIST Traceable Calibration Certificate
Special Cleaning
Fluoroelastomer O-rings
Without Logo

Product Literature

Manuals

Catalog Pages

Approvals

Drawings

Questions

Question
How are Dwyer flowmeters properly read?
Answer
The flow rate is read at the maximum width portion of the float regardless of shape.
Question
I am looking to use an "Air" flowmeter RMA-6-SSV to monitor CO2 flow. I am wondering if there are are any concerns or correction factors I need to apply.
Answer
A specific gravity correction factor will need to be considered when monitoring other gases with a meter calibrated for air. The correction factor equation is as follows: Q2=Q1 x sqrt (1/S.G.) Where: Q1= Observed Flowmeter reading Q2= Standard Flow Corrected for Specific Gravity 1= Specific Gravity of Air or Water S.G.= Specific Gravity of media being used in flowmeter originally calibrated for air or water.
This equation can be found in the beginning of the Flow section in the catalog. Alternatively, special ranges and scales can be provided; for specific information please contact our customer service department.
For further information, see our "Tech & Specs" Video Blog: Fix your Flow... Specific Gravity and Pressure Corrections for Variable Area Flowmeters (Episode 4), in Dwyer's Video Library.
Question
Is a Dwyer Certificate of Conformance offered with any of the flowmeter models?
Answer
A standard Dwyer Certificate of Conformance can be offered with all Dwyer Mini-Master®, Rate-Master®, and Visi-Float® flowmeters on all water ranges (or other compatible liquids).
Question
Are special ranges available for the Rate-Master® and/or Visi-Float® Flowmeter?
Answer
Yes, other ranges are available which are not specified in our catalog. Please feel free to contact Dwyer with questions on these ranges.
Question
Is the Rate-Master® or Visi-Float® Flowmeter compatible with any media?
Answer
The Rate-Master® Flowmeter is manufactured from a polycarbonate plastic and the Visi-Float® Flowmeter is manufactured from acrylic. Compatibility charts need to be reviewed to determine if these materials of construction are compatible with your media.
Question
What factor is used to correct for different flowmeter inlet pressure?
Answer
If the flowmeter is exhausting to atmosphere, no correction factor is needed. If back-pressure is present due to downstream plumbing or restrictions, this error can be corrected utilizing the conversion curves in our full-line catalog or the following equation.

Pressure: Q2 = Q1 x √((P1 x T2)/(P2 x T1))

Where:
Q1 = Observed Flowmeter Reading
Q2 = Standard Flow Corrected for Specific Gravity
P1 = Actual Pressure (14.7 psia + Gage Pressure)
P2 = Standard Pressure (14.7 psia, which is 0 psig)
T1 = Actual Temperature (460 R + Temp °F)
T2 = Standard Temperature (530 R, which is 70°F)
Question
Which flowmeters are available with NIST traceability?
Answer
All Dwyer Mini-Master®, Rate-Master®, and Visi-Float® flowmeters are available with NIST traceability on all air ranges except for RMA-1, RMA-11, RMA-150, RMA-151, VFA-1, VFA-21 and VFB-60 models.

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