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Reference Manual
00809-0100-4811, Rev DA
Appendix A: Reference Data
January 2015
Reference Data
ASME / ANSI flange rating
316 and 316L SST flanges according to ASME B16.5 Table 2-2.3. Max. 302 °F/580 psig
(150 °C/40 bar).
EN flange rating
1.4404 according to EN 1092-1 material group 13E0. Max. 302 °F/580 psig (150 °C/40 bar).
Fisher & Masoneilan flange rating
316 and 316L SST flanges according to ASME B16.5 Table 2-2.3. Max. 302 °F/580 psig
(150 °C/40 bar).
JIS flange rating
316 and 316L SST flanges according to JIS B2220 material group 2.3. Max. 302 °F/580 psig
(150 °C/40 bar).
Tri-Clamp rating
Maximum pressure is 16 bar for 1
1
/2-in. (37.5 mm) and 2-in. (50 mm) housing; and 10 bar for
3-in. (75 mm) and 4-in. (100 mm) housing. The final rating depends on the clamp and gasket.
Plate design
Certain models of flanged Alloy and PTFE covered probes have a tank connection design with a
protective flange plate of the same material as the probe and with a backing flange in 316 or
316L / EN 1.4404. The protective flange plate prevents the backing flange from being exposed
to the tank atmosphere.
For Alloy C-276 and Alloy 400, probes with flange plate design are available up to Class 300/PN
40.
For PTFE, probes with flange plate design are available up to Class 150/PN 16.
Flange connection rating
See Tab le A -2 for the conditions used for flange strength calculations.
A.1.8 Interface measurements
Considerations
The Rosemount 3302 is a good choice for measuring the interface of oil and water, or other
liquids with significant dielectric differences. It is also possible to measure interfaces with a
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