Weld-In Thermowell (Solid-Machined) - TW20

Brand: WIKA Alexander Wiegand SE & Co. KG

The TW20 series of solid-machined weld-in thermowells are suitable for use with numerous electrical and mechanical thermometers from WIKA. 

Due to the heavy-duty design, these international design thermowells are the first choice for use the chemical and petrochemical industries and in plant construction.
Features
  • Different dimensions for standardised welding sockets. 
  • International standard. 
  • Possible thermowell forms:. 
    • Model TW20-A: tapered. 
    • Model TW20-B: straight. 
    • Model TW20-C: stepped. 
    • "Quill Tip" version (with open tip). 

Specifications

Versions

  • Design TW20-A: Tapered
  • Option: Injection quills Version
  • Design TW20-C: Stepped
  • Design TW20-B: Straight

Thermowell Materials

  • Other materials on Request
  • Special materials
  • Stainless Steel 1.4571
  • A105
  • Stainless Steel 304/304L
  • Stainless Steel 316/316L

Process Connection

  • Other threads on Request
  • Ø 48.3 mm [1.5 in]
  • Ø 33.4 mm [1 in]
  • Ø 26.7 mm [3/4 in]

Connection to Thermometer

  • Other threads on Request
  • “Quill Tip” version with weld-in Connection 1/2” and 3/4”
  • G 1/2 Female
  • 1/2” NPT Female

Bore Size

  • Ø 8.5 mm [0.355 in]
  • Ø 6.6 mm [0.260 in]

Insertion Length U

  • To Customer Specification

Connection Length H

  • To Customer Specification

Maximum Process Temperature, Process Pressure

  • - Density of medium
  • - Flow rate
  • Process Conditions
  • - Material
  • - Dimensions
  • Thermowell Design
  • Depending on:

Wake Frequency Calculation (Option)

  • Per ASME PTC 19.3 TW-2016 recommended in critical applications as a WIKA engineering Service
  • For further information see Technical information IN 00.15 “Wake frequency calculation”.

  • Petrochemical industry, on-/offshore, plant construction
  • For high process loads
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