Endress+Hauser TA571 Specifications

Technical Information
TI178T/02/en
No. 71108031

Industrial Protecting Tube

omnigrad TA571

Heavy duty - General purpose
From round bar stock
Socket weld type - Ø 34 ÷ 30 mm

Straight Conical Conical Tapered

Description

TA571 is an industry standard
thermowell, manufactured from round
bar stock.
The process connection is socket weld.
The thermowell stem shape can be
straight, conical or conical tapered.
The extension, the immersion and the
tapering lengths as well as the bar
dimensions can be chosen according to
process requirements.
A wide choice of standard materials is
available; other versions can be ordered
according to specification.
Different grades of surface finishing are
also available.

Application

TA571 is designed for use with resistance
and thermocouple thermometers mainly
in heavy duty applications.

Technical data

Round bar Socket size diameter: 34÷30 mm

Immersion O.D.: < socket size diameter
Standard extens. length: 80 mm
Standard bore diameter: 7 mm
Standard material: AISI316 Ti-W.1.4571, AISI316/W.1.4401, AISI316 L/W.1.4404

omnigrad TA571

Connection to
thermometer

Process connection Threaded: socket weld

Tip Bottom shape: straight, conical or conical tapered

Surface Finishing: 0.8 micron - standard

Thread: 1/2" NPT, 1/2" NPSM, 1/2" BSP, 1/2" BSPF - female

Bottom thickness: 6, 6.35 mm

1.6 micron

2 Endress+Hauser

omnigrad TA571

Notes:
(*) Thermowell thread complete with

1/2" NPS plug.
NPSM internal pipe thread will
accept both NPT and NPS male
thread.

(1) Wall thickness 3 mm minimum

(Q2 - F) / 2 ≥ 3 mm

(2) Nominal length A: 95÷1000 mm

Order key

TA571- HEAVY DUTY THERMOWELL - General purpose - From round bar stock

Socket weld type - Ø 34÷30 mm

Thermometer connection S

1 1/2"NPSM thermometer connection S (*)
2 1/2"NPT thermometer connection S
3 1/2"BSP thermometer connection S
4 1/2"BSPF thermometer connection S

Extension T/Socket size diam./Outside (2)
diam Q1/Taper diam Q2/Taper length R

1 80 mm = T / 32mm = diam

20mm = Q1/ 18mm = Q2 / 135mm = R

9 mm =T/ mm = diam. to specific.

..=Q1 / ..=Q2 / ..=R (1)

Immersion length U (50-955mm) (2)

DA 150 mm immersion length U
YY mm immersion length U to specific.

Material: price for mm of length A (U+T) (95-1000mm)

B Thermowell material: SS316Ti / 1.4571
C Thermowell material: SS316 / 1.4401
D Thermowell material: SS316L / 1.4404
Y Material to specification

Finishing of immersion length

4 1,6 micron finishing immersion length
1 0,8 micron finishing immersion length

Bottom thickness D/Tip shape

C 6,35 mm bottom/Flat
D 6 mm bottom/Rounded 1/2 Q2
Y mm bottom thickness to specification

Bore diameter F

1 7 mm bore
9 mm bore to specification (1)

Plug and chain

A Without plug and chain
B SS 304 plug and chain

Markings

0None
1 Punched on

TA571- Complete Order Code

Endress+Hauser 3

Supplementary
Documentation

• Technical Information Industrial Protecting Tubes (TI138T/02/en)

TI178T/02/en/05.01
FM+SGML 6.0

No: 71108031

Endress+Hauser
Gmbh+Co.
Instruments International
P.O. Box 2222
D-79574 Weil am Rhein
Germany

Tel. [phone]
Tx 773926
Fax [phone]
http://www.endress.com
[e-mail]