Dwyer 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
Dwyer 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 full scale for VFA models, ±3% for VFB,
and ±2% for VFC. Scales average 2" long on the VFA models, 4" long on VFB, and
5" long on VFC.
Durable and attractive construction - The machined acrylic bodies of the Dwyer
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 l/8" NPT
Thread. VFB models 85 and 86 have either 1/4" back or 3/8" end connections. The
VFC models have PVC 1" NPT female connections and VFCII units are equipped
with acetal thermoplastic 1" NPT male fittings. VFCII fittings also include hex
wrench flats to prevent stripped threads. 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. VFC models,
intended for use with external metering valves, include a stainless steel
guide rod and large diameter float for excellent stability and visibility at
higher flow rates. Two options are offered for VFCII units, specifically
designed for applications requiring FDA approved materials. Choose 316
stainless steel float and guide rod and Viton?/sup> "O" rings. See OPTIONS for
ordering codes.
Easy installation - All Visi-Float flowmeters have metal mounting inserts on
rear for panel mounting. They can also be supported directly by system piping.
For the OEM product designer, multi-column flow meters can be custom made in
an almost infinite variety of combinations. Up to 10 columns can be machined
from a single block of acrylic with scale lengths up to 4" long and accuracies
to ±3% of full scale. Brass or stainless steel fittings are available. Flow
rates can be controlled with metering or on-off valves. Customer logos can be
hot stamped on the face of these units in any color. Consult the factory
regarding your special r |
