Intempco Standard Van-Stone Barstock Thermowell, TW503
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TW503 Standard Van-Stone Barstock Thermowell

Brand: Intempco Controls, Inc
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Intempco Van-Stone thermowells are machined from solid barstock. 

Standard sizes are made to fit 1" (DN25) and 1.5" (DN40) flanges of various class. Larger sizes are less common, but available. Contact Intempco for details. 

These thermowells are made to be inserted between 2 mating flanges. 

The well installs against the flange on the process and a slip joint flange slides over the well hub and bolts to the mating process flange to secure the assembly. 

The sealing face can be smooth or can be specified with a surface finish of 125 to 250 µ" Ra (3.2 to 6.3 µm) for better sealing against Gaskets. 

Straight stem thermowells are similar to stepped stem but the large diameter extends to the tip. 

Time response is slower with this style. The heavy wall on the entire length of the stem gives them longer service life in conditions where erosion and/or corrosion may attack the stem. 

They are also well suited for the uniform application of protective coatings or used with protective tantalum sleeves.
Features
  • Machined from solid barstock
  • Straight stem profile
  • 1" (DN25) and 1.5" (DN40) connections are standard
  • Standard bores for 6 mm, 0.250" and 0.375" diameter probes
  • Optional slip joint flange
  • 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
  • 0.385” (9.78 mm) for 3/8” Diameter Probe

Flange Size - 1-1/2” (DN 40)

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

Flange Size - 1” (DN 25)

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

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

Sensor, Probe Diameter

  • Probe: 1/4” (6.35 mm)
  • Probe: 3/8” (9.5 mm)
  • Probe: 6 mm

Special Cleaning & Packaging

  • Cleaned for Oxygen Service

Thermowell

  • Van Stone Straight

Documentation

Data Sheets

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