Temperature Assembly with Thermowell

Brand: SOR Inc

A thermowell protects the temperature sensor from process conditions such as pressure and flow induced forces and chemical effects. 

Proper temperature element protection starts with the selection of the thermowell or protection tube. 

Conditions that influence the selection include the temperature, pressure, flow velocity, pipe size, insertion length and the process environment and medium. 

All of these variables are applied in the ASME PTC19.3 TW 2016 Standard that SOR uses to ensure that every thermowell is designed properly. 

A variety of materials and process connections are available for thermowells including:
  • Standard and exotic materials
  • Flanged, threaded, welded, and sanitary process connections
  • Straight, step-down, or tapered designs
  • Hastelloy®, Monel, Nickel, 316SS, Carbon Steel, and other material options

Specifications

Brand

Accuracy

  • Class A
  • Class B

Approvals & Certifications

  • ATEX
  • Hydrostatic Pressure Test Internal/External

Bore Size

  • 0.13” (3.3 mm)
  • 0.385” (9.8 mm)

Communication

  • HART

Diameter

  • Outer Diameter (OD): 1/8 to 3/8” (3.2 to 9.5 mm)

Enclosure Finish

  • Stellite Coating - Sensor
  • Teflon - Sensor

Environmental Protection

  • Explosion-proof

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150#
  • 1-1/2” (DN 40) - 1500#
  • 1-1/2” (DN 40) - 200#
  • 1-1/2” (DN 40) - 300#
  • 1-1/2” (DN 40) - 400#
  • 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) - 200#
  • 1” (DN 25) - 300#
  • 1” (DN 25) - 400#
  • 1” (DN 25) - 600#
  • 1” (DN 25) - 900#

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150#
  • 2” (DN 50) - 1500#
  • 2” (DN 50) - 200#
  • 2” (DN 50) - 300#
  • 2” (DN 50) - 400#
  • 2” (DN 50) - 600#
  • 2” (DN 50) - 900#

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150#
  • 3” (DN 80) - 1500#
  • 3” (DN 80) - 200#
  • 3” (DN 80) - 300#
  • 3” (DN 80) - 400#
  • 3” (DN 80) - 600#
  • 3” (DN 80) - 900#

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150#
  • 4” (DN 100) - 1500#
  • 4” (DN 100) - 200#
  • 4” (DN 100) - 300#
  • 4” (DN 100) - 400#
  • 4” (DN 100) - 600#
  • 4” (DN 100) - 900#

Flange Type

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

Indication

  • Battery Powered Indicator
  • Loop Temperature Indicator

Junction

  • Dual Exposed
  • Dual Grounded
  • Dual Ungrounded
  • Exposed
  • Grounded
  • Ungrounded

Materials of Construction

  • Head Typical (Cast, Flip Top), Plug & Chain: Stainless Steel
  • Head Typical (Sanitary): Polypropylene
  • Head Typical: Aluminum (Cast, Flip Top)
  • Head Typical: Iron (Cast, Flip Top)
  • Sheath Material, Thermowell: Alloy 600
  • Thermowell (Low Carbon), Sheath Material: 304 Stainless Steel
  • Thermowell (Low Carbon), Sheath Material: 316 Stainless Steel
  • Thermowell, Ferrule Material: Teflon
  • Thermowell, Plug & Chain: Brass
  • Thermowell, Sheath Material: 310 Stainless Steel
  • Thermowell: 321 Stainless Steel
  • Thermowell: 347 Stainless Steel
  • Thermowell: 446 Stainless Steel
  • Thermowell: Alloy 20
  • Thermowell: Alloy 800
  • Thermowell: Alloy 825
  • Thermowell: Carbon Steel
  • Thermowell: Hastelloy B
  • Thermowell: Hastelloy C
  • Thermowell: Monel 400
  • Thermowell: Nickel

NACE & NIST

  • NACE - Thermowell

NPT Connection

  • 1” NPT Male
  • 1/2” NPT Male
  • 1-1/2” NPT Male
  • 1-1/4” NPT Male
  • 2” NPT Male
  • 2-1/2” NPT Male
  • 3” NPT Male
  • 3/4” NPT Male
  • 4” NPT Male

Process Fitting Details

  • Galvanized / Stainless Steel: Hex Nipple / Union / Nipple
  • Galvanized / Stainless Steel: Nipple
  • Galvanized / Stainless Steel: Nipple / Union / Nipple
  • Pressure Seal (Galvanized/Stainless Steel): Union

Seal Type

  • Epoxy Seal At, Max.

Sensor, Probe Connection

  • 3-Wire
  • 4-Wire

Sensor, Probe Type

  • E Thermocouple - Chromel-Constantan
  • J Thermocouple (Iron Constantan)
  • K Thermocouple (Chromel Alumel)
  • N Thermocouple (Nicrosil Nisil)
  • RTD, 100 ohms Platinum / 0.00385 Alpha
  • T Thermocouple (Copper Constantan)

Temperature Range

  • 0° to 482° C (32° to 900° F)

Thermowell

  • Sanitary
  • Stepped-Down Threaded & Flanged, Socket
  • Straight Threaded & Flanged, Socket
  • Tapered Threaded & Flanged, Socket
  • Van Stone
  • Weld-In

Documentation

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