Choose the floating tubesheet exchanger, the following types are listed in the ASME code:
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Floating tubesheet exchanger with an immersed Floating head. Stationary tubesheet can be configuration a, b, c, d, e, or f and floating tubesheet can be configuration A, B, or C.
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Floating tubesheet exchanger with an Externally Sealed Floating head. Stationary tubesheet can be configuration a, b, c, d, e, or f and floating tubesheet is configuration A.
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Floating tubesheet exchanger with an Internally Sealed Floating head. Stationary tubesheet can be configuration a, b, c, d, e, or f and floating tubesheet is configuration D.
Stationary Tubesheet configurations allowed Per ASME section UHX:
a - Tubesheet integral with both Shell and Channel
b - Tubesheet integral with Shell, gasketed with Channel, with Tubesheet extended as a Flange
c - Tubesheet integral with Shell, gasketed with Channel, with Tubesheet not extended as a Flange
d - Tubesheet gasketed with both Shell and Channel
e - Tubesheet integral with Channel, gasketed with Shell, with Tubesheet extended as a Flange
f - Tubesheet integral with Channel, gasketed with Shell, with Tubesheet not extended as a Flange.
Floating Tubesheets configurations allowed Per ASME section UHX:
A - Tubesheet integral
B - Tubesheet gasketed and extended as a Flange
C - Tubesheet gasketed and not extended as a Flange
D - Tubesheet Internally Sealed.