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BDTB18 Bi-Metal Thermometer

Brand: Badotherm

Badotherm thermometer model BDTB18 is available in 63 to 160 mm diameter. 

The BDTB18 is available with various connections, such as: fixed stem on back, bottom, or every angle connection. These bimetal thermometers are suitable for corrosive media and environments in chemical process, petroleum, and food industries.

1 - 2 of 2 Part Numbers
BDTB18
BDTB18
  • Model - Type A Bottom Connection, Direct Mounting, Fixed Stem
BDTE18
BDTE18
  • Model - Type Every Angle Connection, Direct Mounting, Fixed Stem
1 - 2 of 2 Part Numbers

Specifications

Brand

Accuracy

  • ± 1° C (± 1.8° F)
  • ± 10° C (± 18° F)
  • ± 2.5° C (± 4.5° F)
  • ± 2° C (± 3.6° F)
  • ± 5° C (± 9° F)
  • Class 1

Ambient Temperature Range

  • Filling Fluid: -40° to 65° C (-40° to 149° F)
  • Glass Window: < 400° C (752° F)
  • Safety Glass Window: < 200° C (392° F)
  • Window & Fill Plug NBR Gasket: < 100° C (212° F)
  • Without Filling Fluid: -40° to 90° C (-40° to 194° F)

Applications

  • Chemical Processing
  • Food Industry
  • Petroleum

Approvals & Certifications

  • ATEX
  • IEC 529
  • Calibration Certificate: 5-Points (Rising & Falling)
  • EN 13190

Bezel Material

  • AISI 304 Stainless Steel, Bayonet
  • AISI 316L Stainless Steel - Model BDTB18-S

BSP Connection

  • 1/2” BSP Male Adjustable

Diameter

  • 2.48 to 6.3” (63 to 160 mm)
  • Stem Diameter: 0.23 to 0.47” (6 to 12 mm)

Enclosure, Body Material

  • AISI 304 Stainless Steel, Bayonet
  • AISI 316L Stainless Steel - Model BDTB18-S

Environmental Protection

  • IP65

Fill Material

  • ECTFE Inert for Oxygen Service (BPF05)
  • Foaming Service (BPF04)
  • Glycerin (BPF01)
  • Silicone (BPF02)

Gasket Material

  • Window, Fill Plug Gasket: NBR

Insertion 'U' Length

  • 2.48 to 5.9” (63 to 150 mm) Min.

Materials of Construction

  • Pointer (Black) & Dial (White with Black Markings): Aluminum
  • Socket: AISI 316L Stainless Steel

Media

  • Corrosive

Mounting

  • Direct Mounting, Fixed Stem - Model BDTB18 (Typical A Bottom, Typical D Back Connection), Model BDTE18 (Typical Every Angle Connection)

NPT Connection

  • 1/2” NPT Male Adjustable

Operating Pressure

  • psi: 362.6 (kPa: 2,500, bar: 25) at 20° C (68° F)

Process Temperature

  • Filling Fluid: 90° C (194° F)
  • Without Filling Fluid: 600° C (1,112° F)

Stem Material

  • AISI 316L Stainless Steel

Temperature Range

  • -50° to 600° C (-58° to 1,112° F)

Viscosity

  • Filling Fluid: 30 to 1,000 cSt

Window Material

  • Glass
  • Laminated Safety Glass (Except 125 mm)

  • Chemical process
  • Petroleum
  • Food industry

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