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Weld-In Thermowells are available in a variety of materials, process connection sizes, lengths and optional lagging extensions. Thermowell specifications should be based on process conditions which include strength, temperature, pressure and corrosion resistance requirements. Weld-In thermowells are welded directly into the process apparatus. They are designed with a standard 0.260" or 0.385" bore diameter to accommodate sensing elements with a 0.252" or 0.377" maximum diameter, respectively. The tapered design is suited for heavy-duty applications where greater rigidity is required due to process conditions. These wells are available as separate components or as part of complete sensor assemblies.
Unit of Measure

Specifications

Brands

 N/A Pyromation®

Well Type

 N/A Weld-In

Bore Diameter

 N/A 0.260 in
Optional Lag Dimension (T)1 N/A Specify "T" dimension in inches

Note for Material

 N/A Specify two digit material code as stated in the Thermowell Material Table located earlier in section

Note for Length "S"

 N/A Specify length in inches using two digits plus fractional length

Thermowell Dimensions

Pipe Size (P)

 N/A 3/4 in

Thread Type

 N/A National Pipe Straight (NPS)

Nominal Pipe Diameter "P"

 N/A 1.050 in

Diameter "V" at 0.260 Inch (in)

 N/A 5/8 in

Diameter "V" at 0.385 Inch (in)

 N/A 49/64 in

Options

Options

 N/A 316 Stainless steel well cap and chain

Well stamped with customer-specified part number

Additional Information

Additional Information

 N/A ("U" length for non-lagging wells) = "S" -1-1/2 in.
("U" length for lagging wells) = "S" -1-1/2 in. -"T"(To solve for "T")
"T" = "S" -"U" -1 1/2 in. (When "U" and "S" are specified)
  • 1 Leave blank if no lag is required