Series VF Visi-Float Flowmeters

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^® "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 requirements.