USR - Glass Tube Variable Area Flow Meters with Manifold Valves

Brand: KOBOLD Instruments, Inc

The KOBOLD USR Glass Tube Variable Area Flow meters with Manifold Valves for liquids operate on the variable-area (suspended float) principle: that is, the installation position is vertical and the direction of flow is from bottom to top.

For centralized flow measurement, found in applications like cooling systems, we recommend manifold flow meters for convenient and efficient installation.

Up to 24 flow meters can be assembled in a block, provided that maximum flow rate in each unit does not exceed 2.64 GPM.

The flow ranges and outlet connections of each individual rotameter unit can be determined independently from the others.
  • Variable Area Flowmeter Design for Water and Water-Based Liquids
  • Independent Control Valves
  • Up to 24 Flowmeters Can be Assembled in a Block
  • Glass Tube Allows Direct Flow Rate Observation


Measuring Range

  • 0.01-0.1 to 0.25-2.5 GPM

Accuracy Class

  • 2.5 acc. to VDI/VDE 3513

Maximum Pressure

  • 230 psig

Maximum Temperature

  • 210° F

Inlet Process Connection

  • 1” NPT Thread via Adapter

Outlet Process Connection

  • 1/4” NPT
  • 3⁄8” NPT
  • Hose Connection Ø10, Ø13, Ø15 mm

Wetted Materials

  • Glass
  • PTFE
  • Nickel-Plated Brass
  • FKM
  • EPDM
  • NBR Seals
  • Stainless Steel

Media Category

  • Liquid

  • Cooling Circuits and Pumps


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