Endress+Hauser M TW13 Specifications
TI00264T/02/EN/15.19
71443142
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Technical Information
Thermowell
Omnigrad M TW13
Pipe thermowell
Flanged process connection
Application
TW13 is designed for use in the fine chemical s industry but can also be used for generic
applications.
Modular configuration according to DIN 43772 (form 2F/3F) enable a use in all
industrial processes with severe thermal and mechanical stresses.
Your benefits
• TW13 is a pipe thermowell.
• The process connection is flanged.
• Extension, immersion length and total length can be chosen according to process
requirements.
• A wide choice of dimensions, materials and process connections is available.
•Special versions can be manufactured according to customer requirements.
Equipment architecture
TW13
Function and system design
1
4
5
Equipment architecture of the Omnigrad M TW13
1 Thread M24x1.5
2 Thread 1/2" NPT
3 Various tip shapes - detailed information see chapter "Tip shape"
4 Process connection: flange
5 Jacket (protective sheath)
2
3
A0020843
The Omnigrad M TW13 thermowells are designed according to DIN 43772 and can therefore
guarantee a good level of resistance to the most typical and common industrial processes. The
thermowell is made from a pipe with a diameter of 9, 11, 12, 14 or 15 mm (0.35, 0.43, 0.47, 0.55 or
0.59 in). The end of the thermowell can be straight, tapered or reduced (stepped). An oversheath in
plastic can be supplied for thermowells with straight tip. The Omnigrad M TW13 thermowells can be
fitted on the plant (pipe or vessel) using a flanged process connection, which can be chosen from the
most common models.
2 Endress+Hauser
TW13
Performance characteristics
Operating conditions Process pressure
The pressure values to which the thermowell can be subjected at the various temperatures and
maximum permitted flow velocity are illustrated by the figure below. Occasionally, the pressure
loading capacity of the process connection can be considerably lower. The maximum allowable process
pressure for a specific thermometer is derived from the lower pressure value of the thermowell and
process connection.
P (PSI)
2900
2100
1400
700
P (bar)
200
150
P ~ PN100
max.
100
50
0
0
150 200 250 300 350 400
L (mm)
L (in)
8
10 12 14 16
Maximum permitted process pressure for tube diameter
A Medium water at T = 50 °C (122 °F)
B Medium superheated steam at T = 400 °C (752 °F)
LImmersion length
P Process pressure
___ Thermowell diameter 9 x 1 mm (0.35 in)
- - - Thermowell diameter 12 x 12.5 mm (0.47 in)
P (PSI)
2900
2100
1400
700
P (bar)
200
150
100
P ~ PN60
max.
50
0
0
150 200 250 300 350 400
L (mm)
L (in)
6
8
10 12
BA
14 166
A0013494
Note the limitation of the maximum process pressure to the flange pressure ratings indicated
in the following table.
Process connection Standard Max. process pressure
Flange EN1092-1 or ISO 7005-1 Depending on the flange pressure rating PNxx:
ANSI B16.5 Depending on the flange pressure rating 150
JIS B 2220 Depending on the flange pressure rating
DIN2526/7 Depending on the flange pressure rating
20, 40, 50 or 100 bar at 20 °C (68 °F)
or 300 psi at 20 °C (68 °F)
20K, 25K or 40K
PN40 at 20 °C (68 °F)
Endress+Hauser 3
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