Glass Tube Flowmeter for Liquids and Gases

KOBOLD SV flowmeters and switches work on the well known variable area principle, but without the use of the open conical measuring tube. Instead the instruments use a cylindrical control tube with a conical groove along its axis. The upper edge of the float indicates the flow reading on the measuring glass, which is calibrated in GPM or SCFM. This approach allows for higher rates of flow to be monitored in a compact meter. It also allows for greater control of turndown than with traditional conical tube variable area designs.

The SV series is available as a flowmeter only or a flowmeter and switch with up to two switches. Wetted parts are a glass measuring tube with either nickel plated brass or stainless steel connections and viton or buna-n. seals.

Special Features:
±4% Full Scale Accuracy
Small, Compact Design, Low Weight
Direct Reading Scales for Water and Air
Vertical Connections for Easy Installation
Available in Brass or Stainless Steel Construction

Product Specifications:
Accuracy: ±4% full scale
Flow media: liquids and gases
Mounting: vertical media flow bottom to top
Measuring principle: variable area with float and cylindrical control tube

Max. temperature
With brass or SS float: 240 °F
With PP or PVDF float: 160 °F
Max pressure: 145 PSIG
Slotted nozzle: Nickel-plated Brass or 304 SS
Float: Nickel-plated Brass or SS, Polypropylene or PVDF
Fittings: Nickel-plated Brass or 304 SS
Seals: Buna N for Brass units, Viton for SS units
Switches: SPST (N/O) or SPDT

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