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Some sensors can be fitted directly into the process by means of an integral process connection or by using an appropriate compression fitting. 

Other applications require a pocket or thermowell which is a permanent fitting into the process yet allows the sensor to be inserted or removed without interruption. 

Pockets invariably increase the response time and obviously the thicker and heavier the pocket the more the response time will be increased. 

Some styles use spring loading which keeps the inset in permanent contact with the pocket. However, it is the radial clearance between the inset and pocket which has the greatest influence on response time. 

For improved response the inset should be assembled into the pocket using thermally conductive grease.

1 - 12 of 36 Part Numbers
STW1/075
STW1/075
  • Style - Style 1
  • Immersion Length - 75 mm
STW1/100
STW1/100
  • Style - Style 1
  • Immersion Length - 100 mm
STW1/150
STW1/150
  • Style - Style 1
  • Immersion Length - 150 mm
STW1/200
STW1/200
  • Style - Style 1
  • Immersion Length - 200 mm
STW1/250
STW1/250
  • Style - Style 1
  • Immersion Length - 250 mm
STW1/305
STW1/305
  • Style - Style 1
  • Immersion Length - 305 mm
STW2/075
STW2/075
  • Style - Style 2
  • Immersion Length - 75 mm
STW2/100
STW2/100
  • Style - Style 2
  • Immersion Length - 100 mm
STW2/150
STW2/150
  • Style - Style 2
  • Immersion Length - 150 mm
STW2/200
STW2/200
  • Style - Style 2
  • Immersion Length - 200 mm
STW2/250
STW2/250
  • Style - Style 2
  • Immersion Length - 250 mm
STW2/305
STW2/305
  • Style - Style 2
  • Immersion Length - 305 mm
1 - 12 of 36 Part Numbers

Specifications

Approvals & Certifications

  • ISO 9001

BSP Connection

  • 1/2” BSP
  • 1/2” BSPP
  • 1/2” BSPT
  • 1/4” BSPT
  • 3/4” BSPP

Connection Style

  • Internal Thread

Insertion 'U' Length

  • 2.95” to 12” (75 to 305 mm)

Materials of Construction

  • 316 Stainless Steel
  • Brass

Media

  • Conductive Grease

Nut & Bolt Material

  • 316 Stainless Steel

Process Fitting Details

  • Compression Fitting: 1/4” BSPT x 6.0 Diameter
  • Screwed Fitting

Screw Material

  • 316 Stainless Steel

Sensitivity

  • 20-50 µV/°C

Sensor, Probe Length

  • 3” (75 mm)
  • 4” (100 mm)
  • 5.9” (150 mm)
  • 7.8” (200 mm)
  • 9.8” (250 mm)

Sensor, Probe Type

  • Pt100 Platinum Resistance
  • Thermistor
  • Thermocouples

Style

  • Spring Loading
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