Intempco Flanged Stepped Barstock Thermowell, TW421
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TW421 Flanged Stepped Barstock Thermowell

Brand: Intempco Controls, Inc
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Flanged thermowells are made from solid barstock stems welded to forged flanges and machined. 

Full penetration welds are available on all sizes, and available with CRN. Flange sealing face profiles are available as Raised Face, Flat Face, and Ring Type Joint. 

RF type sealing faces have a surface finish of 125 to 250 μin Ra (3.2 to 6.3 μm) for better sealing against Gaskets. 

Stepped stems have a thick robust main stem section with the last 2.5 inches of the stem having a diameter of 0.50" (12.7 mm) to reduce thermal lag offer better time response.
Features
  • Solid barstock and forgings, welded and machined
  • ASME B16.5 Flange standards
  • Stepped, tapered and straight stem profile
  • Raised face, flat face, and ring type joint
  • Standard bores for 6 mm, 0.250" and 0.375" diameter probes
  • CRN available

Specifications

Brand

Approvals & Certifications

  • CRN
  • Internal Hydrostatic Pressure Test
  • Liquid Dye Penetration Testing
  • Well Material Certificate
  • X-Ray Test

Bore Size

  • 0.245” (6.2 mm) for 6 mm Diameter Probe
  • 0.260” (6.6 mm) Standard for 1/4” Diameter Probe

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150# ASME
  • 1-1/2” (DN 40) - 1500# ASME
  • 1-1/2” (DN 40) - 300# ASME
  • 1-1/2” (DN 40) - 600# ASME
  • 1-1/2” (DN 40) - 900# ASME

Flange Size - 1-1/4” (DN 32)

  • 1-1/4” (DN 32) - 150# ASME
  • 1-1/4” (DN 32) - 1500# ASME
  • 1-1/4” (DN 32) - 300# ASME
  • 1-1/4” (DN 32) - 600# ASME
  • 1-1/4” (DN 32) - 900# ASME

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150# ASME
  • 1” (DN 25) - 1500# ASME
  • 1” (DN 25) - 300# ASME
  • 1” (DN 25) - 600# ASME
  • 1” (DN 25) - 900# ASME

Flange Size - 2-1/2” (DN 65)

  • 2-1/2” (DN 65) - 150# ASME
  • 2-1/2” (DN 65) - 1500# ASME
  • 2-1/2” (DN 65) - 300# ASME
  • 2-1/2” (DN 65) - 600# ASME
  • 2-1/2” (DN 65) - 900# ASME

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# ASME
  • 2” (DN 50) - 1500# ASME
  • 2” (DN 50) - 300# ASME
  • 2” (DN 50) - 600# ASME
  • 2” (DN 50) - 900# ASME

Flange Size - 3-1/2” (DN 90)

  • 3-1/2” (DN 90) - 150# ASME
  • 3-1/2” (DN 90) - 1500# ASME
  • 3-1/2” (DN 90) - 300# ASME
  • 3-1/2” (DN 90) - 600# ASME
  • 3-1/2” (DN 90) - 900# ASME

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# ASME
  • 3” (DN 80) - 1500# ASME
  • 3” (DN 80) - 300# ASME
  • 3” (DN 80) - 600# ASME
  • 3” (DN 80) - 900# ASME

Flange Size - 3/4” (DN 20)

  • 3/4” (DN 15) - 900# ASME
  • 3/4” (DN 20) - 150# ASME
  • 3/4” (DN 20) - 1500# ASME
  • 3/4” (DN 20) - 300# ASME
  • 3/4” (DN 20) - 600# ASME

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# ASME
  • 4” (DN 100) - 1500# ASME
  • 4” (DN 100) - 300# ASME
  • 4” (DN 100) - 600# ASME
  • 4” (DN 100) - 900# ASME

Flange Type

  • Flat Face (FF)
  • Raised Face (RF)
  • RTJ - Ring Typical Joint

Insertion 'U' Length

  • 0.1 to 36” (2.54 to 914.4 mm)

Instrument Connection

  • 1/2” BSPP Female
  • 1/2” NPS Female
  • 1/2” NPT Female
  • G 1/2” Female

Lagging Extension

  • 0.1 to 12” (2.54 to 304.8 mm)

Materials of Construction

  • 304 Stainless Steel
  • 304L Stainless Steel
  • 316 Stainless Steel
  • 316L Stainless Steel
  • Hastelloy C-276
  • Inconel 600

NPS Connection

  • 1” NPS Female
  • 1-1/2” NPS Female
  • 1-1/4” NPS Female
  • 2” NPS Female
  • 2-1/2” NPS Female
  • 3” NPS Female
  • 3/4” NPS Female
  • 3-1/2” NPS Female
  • 4” NPS Female

Plug Material

  • Stainless Steel Plug with Chain

Sensor, Probe Diameter

  • Probe: 1/4” (6.35 mm)
  • Probe: 6 mm

Special Cleaning & Packaging

  • Cleaned for Oxygen Service

Thermowell

  • Flanged Stepped

Documentation

Data Sheets

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