Omnigrad TA557

Engineering summary from PDF text extraction for Omnigrad TA557. Verify every value with the OEM datasheet.

Summary

Product identification

Product Name: Omnigrad TA557
Product Type: Industrial protecting tube (thermowell)
Design: Heavy duty - General purpose
Construction: From round bar stock (drilled)

Description

The TA557 is a standard thermowell manufactured from round bar stock. It is designed for use with resistance and thermocouple thermometers, primarily in heavy-duty applications.

Technical Data

Standard Reference: ENI BAR 1
Round Bar Outer Diameter (O.D.): 35 mm
Stem O.D. (Immersion): < 28 mm
Standard Extension Length: 100 mm
Standard Bore Diameter: 8 mm
Standard Material: AISI 316 / W.1.4401, AISI 316L / W.1.4404

Process Connection

Type: Threaded or flanged weld
Thread Size: 1" NPT
Flange Type: ANSI slip-on
Flange Material: AISI 316 or A 105
Flange Mounting: Threaded and back welded - 3x3 mm wide

Thermometer Connection

Threaded Type: 1/2" NPT - female

Tip

Bottom Shape: Straight or conical
Standard Bottom Thickness: 5 mm

Surface Finishing

Immersion Length Finishing: 1.6 micron or 0.8 micron available.
Flange Finishing: Standard for ASME/ANSI or as specified.

Order Key Highlights

The order key allows customization of several parameters:

Extension and Thermowell Shape: Straight, tapered (Q1/Q2), or special taper.
Immersion Length (U): Ranging from 60 mm to 900 mm, with specific options and custom lengths available.
Thermowell Material: SS316 / 1.4401 or SS316L / 1.4404.
Process Connection: Various ANSI slip-on flange options (e.g., 1" ANSI 300 RF, 1 1/2" 150 RF, 1 1/2" 300 RF, 1 1/2" ANSI 600 RTJ, 2" ANSI 300 RF, 2" ANSI 300 RTJ) and "none" (1" NPT).
Flange Finishing: Standard or specified options.
Thermowell Bore Diameter (F): Standard 8 mm or special.
Plug and Chain: Options for without or with a safety plug (SS 304) and chain.
Markings: Option for no markings or punched markings.

Notes:

Minimum wall thickness is 3 mm.
Nominal length (A) ranges from 160 to 1000 mm.

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror

Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.