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STW Thermowell
Brand: Status InstrumentsSome 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
- Style - Style 1
- Immersion Length - 75 mm
STW1/100
- Style - Style 1
- Immersion Length - 100 mm
STW1/150
- Style - Style 1
- Immersion Length - 150 mm
STW1/200
- Style - Style 1
- Immersion Length - 200 mm
STW1/250
- Style - Style 1
- Immersion Length - 250 mm
STW1/305
- Style - Style 1
- Immersion Length - 305 mm
STW2/075
- Style - Style 2
- Immersion Length - 75 mm
STW2/100
- Style - Style 2
- Immersion Length - 100 mm
STW2/150
- Style - Style 2
- Immersion Length - 150 mm
STW2/200
- Style - Style 2
- Immersion Length - 200 mm
STW2/250
- Style - Style 2
- Immersion Length - 250 mm
STW2/305
- Style - Style 2
- Immersion Length - 305 mm
1 - 12 of 36 Part Numbers
Specifications
Brand
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