KDF/KDG Variable Area Flowmeter

Brand: KOBOLD Instruments, Inc.

The KOBOLD flow meters and switches for very low flows model KDF and KDG for liquids and air operate on the suspended float principle: that is, the installation position is vertical and the direction of flow is from bottom to top.

The instruments have been designed as simple and thus economical measuring systems. The float is a ball, whereby the indication point is the upper edge of theb all. A needle valve is fitted as standard.

Specifications

Accuracy

  • ± 2.5 % QG 50
  • ± 3 % of Full Scale
  • ± 5 % of Full Scale

Ambient Temperature Range

  • -20° to 100° C (-4° to 212° F)

Approvals & Certifications

  • ATEX PTB 00-ATEX-2128 × II 2 G Ex ia IIC T6-T4

BSP Connection

  • G 1/4" Female

Connectors

  • Hose Nozzle for 8 mm Hose

Electrical Connectors

  • 2 metres Cable
  • Junction Box

Environmental Protection

  • IP65

Flow Rate

  • 0.25 to 160 L/hour to Water
  • 0.5 to 5,000 NL/hrour to Air

Gasket Material

  • FFKM
  • FPM

Materials of Construction

  • 316 Stainless Steel - Float
  • 316L Stainless Steel - Fitting
  • Borosilicate Glass: Measuring Tube
  • Hostaflon ET: Float Stop
  • Polyamide: Hose Nozzle

Media

  • Gas
  • Liquids

Mounting Position

  • Vertical - Flow from Bottom

Nominal Pressure

  • psi: 232.1 (kPa: 1,600, bar: 16)

NPT Connection

  • 1/4" NPT Female

Process Temperature

  • -20° to 100° C (-4° to 212° F)

Repeatability

  • ± 1 % of Full Scale
  • ± 1.5 % of Full Scale
  • ± 2.5 of Full Scale

Seat / Seal Material

  • PTFE 25 % C (Carbon Fibre)

Stem Material

  • 316 Stainless Steel

Switch Type

  • NAMUR

Temperature Range

  • Maximum

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