ASME SA516-2021 Gr.70N Stationary Tubesheet OD.1640 X THK 292.1MM For Heat Exchanger

ASME SA516-2021 Gr.70N Stationary Tubesheet OD.1640 x THK 292.1MM for Heat Exchanger

The tube sheet is an essential component of a shell and tube heat exchanger because it must support and isolate the fluid within them from the other fluid flowing

through the shell. In some cases， where it is particularly important to prevent the tube fluid from mixing with the shell fluid， a double tube sheet might be installed

within the exchanger.

Tubesheet Analysis Method

Displays the standard to use for analysis:

• TEMA – Tubular Exchanger Manufacturers Association

• ASME – ASME Section VIII， Division 1， Section UHX or ASME Section VIII， Division 2， Part 4

• The option selected in Design Code determines whether the software uses Division 1 or Division 2.

• PD 5500 (British Code) – British Pressure Vessel Code， Section 3.9， Flat Heat Exchanger Tubesheets

• EN-13445

Exchanger Type

Select the type of heat exchanger.

• U-Tube has only one tubesheet. The tubes are bent in the form of a "U." The bundle can removed for maintenance， but the inside of the tube is harder to clean because of the bend.

• Fixed has two tubesheets that are fixed at each end of the exchanger and are connected to each other by straight tubes. Both the tubesheets are stationary， so differential thermal expansion can develop between the shell and the tubes. An expansion joint is sometimes required to absorb the thermal growth. You must select a fixed type of tubesheet exchanger to perform finite element analysis (TONG CHUANG) on expansion joints.

• Floating has one tubesheet that is fixed (stationary) and one that is free to move. Because one tubesheet floats， any differential thermal expansion between the shell and tubes is absorbed. This category of exchangers is the most versatile and also the costliest. Tubes can also be cleaned easily compared to U-tube exchangers.

ASME SA516 Four Material Grades