Endress+Hauser TA557 Specifications

Technical Information
TI156T/02/en
No. 71108024

Industrial protecting tube

omnigrad TA557

Heavy duty - General purpose
From round bar stock - Ø 35 mm
1" NPT threaded or flanged weld type
Also ENI BAR 1

Threaded

process connection

Description

TA557 is an industry standard
thermowell, manufactured from round bar
stock (drilled).
The process connection can be threaded
or flanged weld.
The thermowell stem shape can be
straight or conical.
The extension and the immersion lengths
as well as the bar dimensions can be
chosen according to process
requirements.
A wide choice of standard materials and
process connections is available; other
versions can be ordered according to
specification.
Different grades of surface finishing are
also available.

Flanged

process connection

Application

TA557 is designed for use with resistance
and thermocouple thermometers mainly
in heavy duty applications.

Technical data

Round bar Standard reference: ENI BAR 1

Extension O.D.: 35 mm
Immersion O.D.: <
Standard ext. length: 100 mm
Standard bore diameter: 8 mm
Standard material: AISI316/W.1.4401, AISI316L/W.1.4404

28 mm

omnigrad TA557

Connection to
thermometer

Process connection Type: threaded or flanged weld

Tip Bottom shape: straight or conical

Surface Finishing: refer to the order key

Threaded: 1/2" NPT - female

Thread: 1" NPT
Flange type: ANSI slip-on
Flange material: AISI 316 or A 105
Flange mounting: threaded and back welded - 3x3 mm wide

Std. bottom thickness: 5 mm

2 Endress+Hauser