Thermowell properties

No thermowell, for installation in existing thermowell

Tube, tube base and welded process connection

Drilled bar stock material

Components

Measuring inset, extension tube with thermowell interface, connection head, transmitter, display

Measuring inset, thermowell with process interface, connection head,transmitter,display

Measuring inset, thermowell with process interface, extension tube, connection head, transmitter,display

Standard process interface

Installation by customer in existing thermowell

Screw-in thread, flange, compression fitting

Welded connections, screw-in thread, flange

Thermowell Ø (shaft/tip) [mm]

At installation site

9; 11; 12; 14; 11/6; 12/6; 12/9; 13,7;13,7/6

18/9; 24/12.5; 32/13.5; 20/13.5; 23/13.5; 25/16; 17/13.5

Standard thermowell material

-

1.4404 (SS 316L)1.4571 (SS 316Ti)2.4819 (Hastelloy C276)

1.4571 (SS 316Ti), 1.4404 (SS316L), 1.7335 (AISI F12), 1.5415(AISI F1), 2.4819 (Hastelloy C276)

Standard ext. tube material

Stainless steel

One-piece thermowell

Stainless steel

Connection heads

BUZ, BUZH, BUZHD:Aluminum
BUKH:Polyamide
BEG:Stainless ste

Output signal

al Sensor signal, 4 ... 20 mA, HART, PROFIBUS PA, FOUNDATION Fieldb

Measuring insets

ts Compliant with DIN 43735, exchangea

Explosion protection class

ss ATEX II 1 G EEx ia IIC T6 ... T1 – zone 0, 1, 2 / connection head zone 1
ATEX II 1 D T133 ... T400 – zone 20, 21, 22
Note: Requirements for NAMUR NE24 recommendation are fulfilled by ATEX EEx 

Application

on Comply with temperature limit for thermowell when measuring temperatures in tanks and pipelines in liquid and
gaseous medi

Temperature

re Resistance thermometer < 600 °C, thermocouples < 1000

Pressure (depends on material, connection and stress data)

-

approx. 40 ... 100 bar

approx. 700 bar

Weight for standard designs

0.5 ... 2.5 kg

1.0 ... 4.0 kg

1.0 ... 6.0 kg