Kobold Variable Area Flowmeter, URK
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URK Variable Area Flowmeter

Brand: KOBOLD Instruments, Inc
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The Kobold URK Model Flowmeter/Monitor works on the basis of the suspended float principle. It is used for measuring the flow rates in closed pipe line systems. The medium flows from below through a glass measuring cone that gets wider on top. 

Thus, the float is raised and indicates the respective flow rate on the scale provided on the measuring cone.

To monitor flow rate limits, the URK meters can be optionally furnished with "open collector" proximity switches. By its special design, this model is particularly suitable for applications where only very small operating pressures are available. 

Another advantage is offered by the very large sight glass which optically allows direct flow observation.
Features
  • Variable Area Design
  • Glass Tube Allows Direct Flow Observation
  • Low Pressure Loss

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Specifications

Brand

Accuracy

  • Class 4

Ambient Temperature Range

  • -25° to 70° C (-13° to 158° F)

Applications

  • Cooling Circuits
  • Domestic Engineering
  • Extrusion Machines
  • Glass-Melting Tanks
  • Heating Equipment
  • Induction Furnace
  • Machine Tools
  • Paper Machines
  • Plant Engineering
  • Solar Systems
  • Water Treatment
  • Welding Machines

Cable Length

  • 6.56 feet (2 metres)

Cable Material

  • PVC

Calibration

  • 20° C (68° F)
  • psia: 14.69 (kPa: 101.3, bar: 1.013)

Connection Material

  • 304 Stainless Steel
  • 316 Stainless Steel
  • Cast Iron

Consumption

  • Power Consumption: 10 mA

Electrical Connectors

  • 2 metres Cable

Environmental Protection

  • IP67

Flange Material

  • 304 Stainless Steel
  • Cast Iron

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - PN 16
  • 1-1/2” (DN 40) - PN 6

Flange Size - 1-1/4” (DN 32)

  • 1-1/4” (DN 32) - PN 16
  • 1-1/4” (DN 32) - PN 6

Flange Size - 1” (DN 25)

  • 1” (DN 25) - PN 16
  • 1” (DN 25) - PN 6

Flange Size - 1/2” (DN 15)

  • 1/2” (DN 15) - PN 16
  • 1/2” (DN 15) - PN 6

Flange Size - 2-1/2” (DN 65)

  • 2-1/2” (DN 65) - PN 16
  • 2-1/2” (DN 65) - PN 6

Flange Size - 2” (DN 50)

  • 2” (DN 50) - PN 16
  • 2” (DN 50) - PN 6

Flange Size - 3” (DN 80)

  • 3” (DN 80) - PN 16
  • 3” (DN 80) - PN 6

Flange Size - 3/4” (DN 20)

  • 3/4” (DN 20) - PN 16
  • 3/4” (DN 20) - PN 6

Flow Rate

  • 0.02 to 500 Nm³/hour to Air
  • 1 to 50,000 L/hr to Water

Materials of Construction

  • 304L Stainless Steel - Float Material. Cover Plate,
  • 316 Stainless Steel
  • Aluminum - Float Material
  • Borosilicate Glass - Measuring Tube
  • Plexiglass - Sight Glass
  • Polypropylene - Floating Material
  • PTFE - Floating Material
  • PVC - Floating Material

Maximum System Pressure

  • psi: 232.1 (bar: 16, kPa: 1,600)

Mounting Position

  • Vertical

Pressure Type

  • Absolute

Ring Material

  • 304 Stainless Steel
  • PTFE
  • PVC

Seat / Seal Material

  • EPDM
  • FPM
  • NBR
  • PTFE

Supply Voltage

  • 12-24 Vdc

Switch Type

  • PNP Open Collector
  • Proximity

Temperature Range

  • Maximum

Documentation

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