Level Plus
®
Tank SLAYER
®
Operation Manual
I
11
I
5.5 CRN Specifications
Below are the pressure calculations of the pressure ratings for ANSI
Raised Face flanges available on the Tank SLAYER
®
level transmitter
according to flange and CRN calculations under ASME B31.3-2016.
Do note, the maximum pressure rating for the flexible hose is 435 psi
(30.0 bar) even though the calculations are higher. The reason for
the lower active rating is that the flexible hose can withstand higher
pressure but not without lengthening the hose and losing accuracy.
RF Flange Rating
Maximum Temperature
100°F
200°F
257°F
No Flange
725 psig
50.0 bar
-
-
603 psig
41.6 bar
150#
275 psig
19.0 bar
235 psig
16.2 bar
223 psig
15.4 bar
300#
720 psig
49.6 bar
620 psig
42.7 bar
585 psig
40.3 bar
600#
1440 psig
99.3 bar
1240 psig
85.5 bar
1171 psig
80.7 bar
Do note, that there are two pressure ratings on the Tank SLAYER
®
level
transmitter. One pressure rating is for use in hazardous areas and the
other pressure rating is for use in pressure vessels. Depending on the
application one, both, or neither rating may be needed. If installed in
a hazardous area then the maximum pressure rating to maintain the
hazardous area rating is 435 psi (30.0 bar). If installed in a pressure
vessel then the calculations shown above must be followed. However,
if the pressure vessel is in a hazardous are then the hazardous area
maximum still applies.
