Kobold Level Meter, NPF
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NPF Diaphragm Level Indicator

Brand: KOBOLD Instruments, Inc
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Due to their design and the materials used, KOBOLD level meters of model NPF with diaphragm satisfy the tough service demands in the chemical and petrochemical industry. They are used for level measuring of low-viscosity, nonsticking media in open, unpressurized vessels.

The specific weight of the medium should be taken into account. The fixed annular diaphragm is quite insensitive to vibrations. Diaphragm pressure gauges have a relatively high actuating force. Their stainless steel construction render the instruments resistant to aggressive environmental conditions.

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Specifications

Brand

Accuracy

  • ± 1.6 % of Full Scale

Ambient Temperature Range

  • 80° C (176° F) - Max.

Applications

  • Chemical Industry
  • Equipment Manufacturing
  • Petrochemical Plants
  • Plant Engineering

BSP Connection

  • G 1/2” Male

Electrical Contacts

  • Creep Contact
  • Inductive Contact
  • Magnetic Snap Contact
  • Normally Closed & Normally Open

Electrical Rating

  • 250 Vac/dc / 0.6 A / 10 W / 18 VA - Creep Contact
  • 250 Vac/dc / 0.6 A / 30 W / 50 VA - Magnetic Snap Contact
  • Nominal 8 Vdc - Inductive Contact

Element

  • 316Ti Stainless Steel - Measuring Element
  • Duratherm 600 - Measuring Element

Enclosure / Body Material

  • 304L Stainless Steel

Environmental Protection

  • IP54
  • IP65
  • IP67

Flange Size - 2-1/2” (DN 65)

  • 2-1/2” (DN 65) - 150# (ANSI B16.5)
  • 2-1/2” (DN 65) - 300# (ANSI B16.5)
  • 2-1/2” (DN 65) - 600# (ANSI B16.5)
  • 2-1/2” (DN 65) - PN 10
  • 2-1/2” (DN 65) - PN 40

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# (ANSI B16.5)
  • 2” (DN 50) - 300# (ANSI B16.5)
  • 2” (DN 50) - 600# (ANSI B16.5)
  • 2” (DN 50) - PN 10
  • 2” (DN 50) - PN 40

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# (ANSI B16.5)
  • 3” (DN 80) - 300# (ANSI B16.5)
  • 3” (DN 80) - 600# (ANSI B16.5)
  • 3” (DN 80) - PN 10
  • 3” (DN 80) - PN 40

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# (ANSI B16.5)
  • 4” (DN 100) - 300# (ANSI B16.5)
  • 4” (DN 100) - 600# (ANSI B16.5)
  • 4” (DN 100) - PN 10
  • 4” (DN 100) - PN 16
  • 4” (DN 100) - PN 25
  • 4” (DN 100) - PN 40

Materials of Construction

  • 316Ti Stainless Steel - Tube Bend
  • Aluminum White (Dial Face), Black (Pointer)
  • Stainless Steel - Measuring Mechanism

NPT Connection

  • 1/2” NPT Male

Overpressure & Static Pressure Limits

  • psi: 0 to 580 (kPa: 0 to 4,000, bar: 0 to 40) - Overpressure-Safe

Process Temperature

  • 80° C (176° F) - Max.

Resistance

  • 1 kiloohms - Input Resistance

Ring Material

  • 304L Stainless Steel

Window Material

  • Safety Glass

Documentation

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