Intempco Standard Van-Stone Barstock Thermowell, TW502
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TW502 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 µin Ra (3.2 to 6.3 µm) for better sealing against Gaskets. 

Tapered thermowells are the strongest mechanically. The stem starts off at a large diameter (the root or shank diameter) and tapers down to the tip diameter. 

This design has a higher natural frequency making them more appropriate for systems with extreme dynamic conditions such as process lines with media flowing at high velocity.
Features
  • Machined from solid barstock
  • Tapered 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 Stepped

Documentation

Data Sheets

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