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. 

           +
X
010
Model
 
 
 Product DescriptionProd. time (days)
Thermowell0
X
020
Mounting Style
 
 
  Prod. time (days)
Threaded0
X
030
Material
 
 
  Prod. time (days)
316 Stainless steel0
316L Stainless steel0
304 Stainless steel0
304L Stainless steel0
Carbon steel0
Others0
X
040
Dimension Unit
 
 
  DetailsProd. time (days)
Metric units (mm)Metric units (mm) Only applies to lengths0
English/U.S. units (inches)0
X
050
Immersion Length
 
 
  DetailsProd. time (days)
Lengths greater than 5.12 inches = 6 and 8 mm diameter. xxx.x inches, 1.25 to 60 inches in 1/4-in. increments 0
Lengths greater than 130 mm = 6 and 8 mm diameterxxxx mm, 30 to 1300 mm in 5-mm increments0
X
060
Stem style
 
 
  Prod. time (days)
Straight0
Tapered0
Stepped0
X
070
Process connections
 
 
  Prod. time (days)
½ –14 NPT0
¾ –14 NPT0
1–11.5 NPT0
1 ½ –11.5 NPT0
½-in. BSPT0
¾ -in. BSPT0
1-in. BSPT0
M20 x 1.5p0
M24 x 1.5p0
M27 x 2p0
M33 x 2p0
½ -in. BSPF (G1/2)0
¾ -in. BSPF (G3/4)0
1-in. BSPF (G1)0
X
080
Head Length
 
 
  DetailsProd. time (days)
xxx.x inches, 1.75 to 11.25 inches in 1/4-in. incrementsExample of a 6.25-in. length where the second decimal is dropped off: 062 (Default head length = 1.75 inch)0
xxxx mm, 40 to 225 mm in 5-mm incrementsExample of a 50 mm length: 050 (Default head length = 45 mm)0
X
090
Instrument Connection
 
 
  DetailsProd. time (days)
1/2–14 NPTFemale Threads0
1/2–14 NPSM0
3/4–14 NPT0
G 1/2-in. (BSPF)0
G 3/4-in. (BSPF)0
M14 x 1.5p0
M18 x 1.5p0
M20 x 1.5p0
M24 x 1.5p0
M27 x 2p0
X
100
Material certification
 
 
  Prod. time (days)
Thermowell material Certification, EN 10204 3.10
X
110
NACE Certificate
 
 
  Prod. time (days)
Certificate of Compliance to NACE MR0175/ISO 15156 for wetted materials0
X
140
Dye penetration test
 
 
  DetailsProd. time (days)
Dye penetration test Checks quality of material0
X
190
Root diameter (A)
 
 
  Prod. time (days)
x.xx inches, 0.4 to 3.15 inches in 0.01-in. increments0
x.xx mm, 10 to 80 mm in 0.5-mm increments 0
X
200
Tip diameter (B)
 
 
  Prod. time (days)
x.xx inches, 0.4 to 1.80 inches in 0.01-in. increments0
x.xx mm, 10 to 46 mm in 0.5-mm. increments0
X
210
Non-standard bore diameter (d)
 
 
  DetailsProd. time (days)
0.276-in./7.0 mmDefault = 0.26- in. (6.5 mm)0
0.138-in./3.5 mm0
0.38- in./9.8 mm0
0.354-in./9.0 mm0
0.433-in./11.0 mm0
X
220
Non-standard tip thickness (t)
 
 
  DetailsProd. time (days)
0.197-in./5.0 mmDefault = 0.275-in.(7mm)0
0.236-in./6.0 mm0