Two of most accurate and commonly used temperature sensors are RTD & Thermocouple.Thermowells are tubular fittings used to protect temperature sensors installed in industrial processes. 

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X
010
Model
 
 
 Product DescriptionProd. time (days)
Welded Thermowell0
X
020
Mounting Style
 
 
  Prod. time (days)
Welded–Socket weld0
Welded–Weld-in (only available in tapered stem profile)0
X
030
Dimension Unit
 
 
  DetailsProd. time (days)
Metric units (mm)Only applies to lengths0
English/U.S. units (inches)0
X
040
Immersion Length
 
 
  Prod. time (days)
xxx.x inches, 1.25 to 60 inches in 1/4-in. increments Lengths greater than 5.12 inches = 6 and 8 mm diameter.0
xxxx mm, 30 to 1300 mm in 5-mm increments Lengths greater than 130 mm = 6 and 8 mm diameter0
X
050
Stem style
 
 
  DetailsProd. time (days)
StraightMinimum immersion length = 1 in (25mm)0
TaperedMinimum immersion length = 1 in (25mm)0
SteppedMinimum immersion length = 3 in (75mm)0
X
060
Material
 
 
  Prod. time (days)
316 Stainless steel0
316L Stainless steel 0
304 Stainless steel0
304L Stainless steel0
Carbon steel0
X
070
Process connections
 
 
  Head DiameterProd. time (days)
¾ -in. pipe19.05mm0
1-in. pipe25.4mm0
1 ¼ -in. pipe31.75mm0
1 ½ -in. pipe38.1mm0
Custom head diameter (ex AZ30)0
X
080
Head length
 
 
  Prod. time (days)
xxx.x inches, 1.75 to 11.25 inches in 1/4-in. increments (when ordered with Dimension units code E)0
xxx.x mm, 40 to 225 mm in 5-mm increments (when ordered with Dimension units code M)0
X
090
Instrument connection
 
 
  Thread LengthThread DiameterProd. time (days)
1/2–14 NPT22mm21mm0
1/2–14 NPSM22mm21mm0
3/4–14 NPT22mm27mm0
G 1/2-in. (BSPF)22mm21mm0
G 3/4-in. (BSPF)22mm27mm0
M14 x 1.5p22mm14mm0
M18 x 1.5p22mm18mm0
M20 x 1.5p22mm20mm0
M24 x 1.5p22mm24mm0
M27 x 2p 27mm27mm0
X
210
Material certification
 
 
  Prod. time (days)
Thermowell material Certification, EN 10204 3.10
X
220
NACE Certificate
 
 
  Prod. time (days)
Certificate of Compliance to NACE MR0175/ISO 15156 for wetted materials0
X
280
Root diameter (A)
 
 
  Prod. time (days)
x.xx inches, 0.4 to 3.15 inches in 0.01-in. increments (when ordered with Dimension Units Code E)0
x.xx mm, 10 to 80 mm in 0.5-mm increments (when ordered with Dimension Units Code M)0
X
290
Tip diameter (B)
 
 
  Prod. time (days)
x.xx inches, 0.4 to 1.80 inches in 0.01-in. increments (when ordered with Dimension Units Code E)0
x.xx mm, 10 to 46 mm in 0.5-mm. increments (when ordered with Dimension Units Code M)0
X
300
Non-standard bore diameter (d)
 
 
  DetailsProd. time (days)
0.276-in./7.0 mmStandard = 0.26-in.(6.5mm)0
0.138-in./3.5 mm0
0.385-in./9.8 mm0
0.354-in./9.0 mm0
0.433-in./11.0 mm0
X
310
Non-standard tip thickness (t)
 
 
  DetailsProd. time (days)
0.197-in./5.0 mmStandard = 0.275-in.(7mm)0
0.236-in./6.0 mm0