Technical data

TTR31, TTR35 The most important technical data
Endress+Hauser 33
Process pressure limits
Maximum permitted process pressure depending on the insertion length.
a0008063-en
Fig. 14: Maximum permitted process pressure
L = insertion length
p = process pressure
The diagram takes into consideration not only the overpressure but also the pressure load caused
by the flow, whereby a safety factor of 1.9 has been specified for operation with flow. The
maximum permitted static operating pressure is lower at greater insertion lengths due to the
increased bending load caused by the flow. The calculation assumes the maximum permitted
medium velocity for the respective insertion length (see diagram below).
"
Caution!
The maximum process pressure for the conical metal-metal process connection (see Fig. 3,
item D) is 16 bar = 1.6 MPa (232 psi)!
up to 60 °C (140 °F) 120 °C (248 °F)
up to 85 °C (185 °F) 100 °C (212 °F)