Type of Tubesheet - PV Elite - Help - Hexagon

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The program analyzes the following tubesheet types.

When one tubesheet is stationary and the other tubesheet is a floating type, then analyze the stationary tubesheet as one of the stationary types (listed below) and analyze the floating tubesheet as one of the tubesheet types (listed below). Examples include: AEP, AKT, AJW, NET, and so forth.

If both tubesheets (front and rear) are stationary, then select the fixed tubesheet type. This can include any of the stationary tubesheet types as the front or rear tubesheet type. Choosing this geometry assures the differential thermal expansion (between the shell and the tubes) is properly accounted. Examples of some fixed configurations are BEM, NGN, AEL, and so forth. Use the table below to determine the correct tubesheet type.

Stationary tubesheet, gasketed on both sides (A)

Stationary tubesheets, integral with the shell (B)

Stationary tubesheets, integral with the channel (C)

Stationary tubesheets, integral on both sides (N)

U-tube tubesheets gasketed on both sides (U)

U-tube tubesheets integral with the channel (V)

U-tube tubesheets integral with the shell

Floating tubesheets, outside packed floating head (P)

See TEMA figure N-1.2

Floating tubesheets, head with backing device (S)

See TEMA figure N-1.2

Floating tubesheets, pull through floating head (T)

See TEMA figure N-1.2

Floating head, externally sealed floating tubesheet (W)

See TEMA figure N-1.2

Divided floating tubesheet (D)

See TEMA 7.132 type k

Fixed tubesheet exchanger - two stationary tubesheets (F)

The following figure displays a NEN fixed tubesheet exchanger. A fixed tubesheet configuration can be comprised of any combination of stationary tubesheets.

  • Each end can be any type of fixation such as integral, gasketed.

  • You must select a fixed type of tubesheet exchanger to perform finite element analysis (FEA) on expansion joints.