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Straight Van Stone Thermowells are available in a variety of materials, flange sizes, and pressure ratings. They are also available in various lengths and with optional lagging extensions. Thermowell specifications should be determined based on process conditions which include strength, temperature, pressure and corrosion-resistance requirements. Straight Van Stone thermowells are supplied with a 0.260" or 0.385" bore diameter to accommodate sensing elements with a 0.252" or 0.377" maximum diameter, respectively. Van Stone thermowells are connected using a separate and reusable lapped backing flange, eliminating the need for expensive flange materials. 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 Straight Van Stone

Bore Diameter

 N/A 0.385 in

Flange Size

 N/A 1 in

Nominal Diameter (DN)

 N/A 25 in

Flange Type

 N/A Van Stone (Lap Joint)

Pressure Rating

 N/A 900 Class

Optional "T" Lag Dimension

 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 "S" Length

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

Thermowell Dimensions

Nominal Pipe Size "P"

 N/A 1 in

Diameter of Pipe Size "P"

 N/A 1.315 in

Diameter "R"

 N/A 2 in

Diameter Q at 0.260 Inch (in)

 N/A 3/4 in

Diameter Q at 0.385 Inch (in)

 N/A 7/8 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" - 2"
("U" length for lagging wells) = "S" - 2" -"T"
(To solve for "T"), "T" = "S" -"U" - 2" (When "U" and "S" are specified)