The following MT-MECH modules have been revised:
One of the most relevant implementation is related to the possibility to install and run the programs in LAN. Each client connected to the LAN can access to the programs, only limited by the number of licenses available on the network.
For a complete list of the new release contents see the tables herebelow each one specific for a program.

MT-COMP Revision 2.5.0 (January 2004)
1.The following materials have been added to data base:
  • SA 240 GR410S
  • SA 268 TP410
  • SA 182 F6aCL2
  • SB 626 N10276

  • SA 240 S31803
  • SA 182 F51
  • SA 789 S31803
  • SA 387 GR11 Cl 2
  • SA 336 F 11 Cl 2
  • EN 10025 - S235 JR
  • EN 10025 - S275 JR
    • 2.ASME Chart CS-3. Now the test for T > 300 °F is correctly done .
    3.Audit Report - Nozzle. If the nozzle diameter is less than the minimum to be reinforced a note is now printed in the datasheet for explicitely indicating wy the calculation has been skipped
    4.Floating Head. Is now possible to select a different material for the Split Ring and the Floating Flange.
    5.Audit Report. The compensation for large openings (ASME) is now calculated correctly.
    6.Nozzles. If the nozzle heigth is supplied in input, it wiil be mantained alerting the user if less than the one required by the program.
    7.LAN version. Installing programs on the server, they can be executed frm any PC connected in the LAN.
    8.TEMA Expansion Joint. The calculation has been fixed for avoiding the possibility to calculate a negative number of cycles
    9.TEMA Expansion Joint. Also with more than one wave now the Audit Report reports also the internal element conditions for the Hydraulic test.
    10.Nozzle Table. LWN for DN 15, 20 mm have been included.
    11.Nozzles. The minimum welding distance is now computed taking care of the maximum distance for compensation, as required by Codes.
    12.Formed Heads. The thickness supplied in input is assumed as is without rounding it to the nearest mm.
    13.Bolt Table. The reference name of the table has been corrected in "TEMA Tab. D5" from "ANSI B18.22" as erroneously indicated before.
    14.Nozzles. The formula for "lm" in the VSR/AD-MERKBLATT Audit Reports has been fixed. Now it is congruent with the calculation.
    15.Diagnostic Messages. The messages have been completely revised for a better understanding of them. In most cases also values who generated the message are also printed
    16.Expansion Joint. The calculation of number of cycles is now controlled for avoiding overflow error.
    17.Skirt . The error occurring in verifiyng the bolts of the using the "User" standard has been fixed.
    18.The neck length for Elliptical/Torispherical heads has been added as input datum.
    19.The thickness of the formed heads in check for VSR code has been fixed.
    20.The table VSR.1.E.1 of the coefficients C/Co related to the calculation of formed heads according to ISPESL-VSR has been revised according to Rev. 1995 of the code.
    21.The reduction factors for bolts loads have been added to the calculation of girth flanges according to VSR..
    22.The calculation of the tubes tension and compression according to TEMA has been fixed in case of simultaneous pressures.
    23.A bug in the calculation of conical sections to internal pressure according to AD-MERKBLATT has been fixed.


    MT-VESS Revision 2.4.0 (January 2004)
    1.The following materials have been added to data base:
  • SA 240 GR410S
  • SA 268 TP410
  • SA 182 F6aCL2
  • SB 626 N10276

  • SA 240 S31803
  • SA 182 F51
  • SA 789 S31803
  • SA 387 GR11 Cl 2
  • SA 336 F 11 Cl 2
  • EN 10025 - S235 JR
  • EN 10025 - S275 JR
    • 2.ASME Chart CS-3. Now the test for T > 300 °F is correctly done.
    3.Audit Report - Nozzle. If the nozzle diameter is less than the minimum to be reinforced a note is now printed in the datasheet for explicitely indicating wy the calculation has been skipped
    4.Vertical vessels with jacketed conical head have been revised:
    • Input - Nozzle. The nozzle elevation is now calculated correctly.
    • Calculation. Now the nozzle on the conical head is taken in account and the audit reports for the conical section are now generated correctly. Stiffening is now calculated correctly for External Pressure.
    • Drawing. Several inconsistencies have been fixed.
    5.The code identifiyng Reinforcing type on Flat Flanged Heads is now appropriate.
    6.Legs (user). The user table for brackets is now handled correctly
    7.Coupled Flanges. The Audit Report generation is now correct also in this case.
    8.Brackets. Some inconsistencies have been avoided allowing to specify in input the brackets elevation (middle span). The choice of the calculation code is now allowed also for brackets.
    9.Audit Report. The page counting has been revised for avoiding some inconsistencies. Problems caused by welding analysis have been fixed.
    10.Audit Report. The compensation for large openings (ASME) is now calculated correcty.
    11.Nozzles. If the nozzle heigth is supplied in input, it wiil be mantained alerting the user if less than the one required by the program.
    12.Nozzles. The abnornal program termination in case of more than 25 nozzles has been fixed.
    13.Legs User Table. The program now searches just in th values supplied by the user.
    14.Legs. The vibration period of vessels on legs is now computed correctly with the reference to the shape used.
    15.LAN version. Installing programs on the server, they can be executed frm any PC connected in the LAN.
    16.Nozzle Table. LWN for DN 15, 20 mm have been included.
    17.Formed Heads. The Audit Report reports now the proper materials when the material classes for the head and the adiacent shell are different.
    18.Nozzles. The minimum welding distance is now computed taking care of the maximum distance for compensation, as required by Codes.
    19.Formed Heads. The thickness supplied in input is assumed as is without rounding it to the nearest mm.
    20.Bolt Table. The reference name of the table has been corrected in "TEMA Tab. D5" from "ANSI B18.22" as erroneously indicated before
    21.Nozzles. The formula for "lm" in the VSR/AD-MERKBLATT Audit Reports has been fixed. Now it is congruent with the calculation.
    22.Diagnostic Messages. The messages have been completely revised for a better understanding of them. In most cases also values who generated the message are also printed
    23.Nozzles. The Nozzle Rating supplied in input is now reported correctly on the output..
    24.Allowable Stress @20°C. The value is now computed also when the Test Pressure has been supplied by the user.
    25.Flanges. The error occurring when more than 2 main flanges were specified has been fixed.
    26.Wind check. The deflection caused by wind at the top of vertical vessels is now reported in the output.
    27.Skirt . The error occurring in verifiyng the bolts of the using the "User" standard has been fixed.
    28.LWN Nozzles . The heigth of LWN nozzles is now computed correctly if specified in input..
    29.Skirt . The skirt Audit Report has been corrected for properly handling materials with tensile strength=0 in the base ring calculation.
    30.The neck length for Elliptical/Torispherical heads has been added as input datum.
    31.The rounding thickness for plates has been added to the program. This gives the possibility to round the thicknesses to the nearest American Nominal Size (1/16" = 1.5875 mm).
    32.The thickness of the formed heads in check for VSR code has been fixed.
    33.The table VSR.1.E.1 of the coefficients C/Co related to the calculation of formed heads according to ISPESL-VSR has been revised according to Rev. 1995 of the code.
    34.A bug in the calculation of conical sections to internal pressure according to AD-MERKBLATT has been fixed.
    35.The drawing of the nozzles in the vessel drawing has been totally revised.
    36.The printout of the calculation of the Hydraulic test pressure has been added to the results of the exchanger calculation.
    37.A new screen related to the Bill of Materials has been added to the program for allowing BOM customization and adding data not available from the program.
    38.The required heigth of nozzles pipe in the BOM has been increased to take into account for working losses.
    39.Nozzles bolts and gaskets have been added in the BOM.
    40.The blind flange has been added as separated item in the BOM.


    MT-EXCH Revision 2.5.0 (January 2004)
    1.BEM type exchangers. A problem in drawing flanges on conical ends has been fixed.
    2.The following materials have been added to data base:
  • SA 240 GR410S
  • SA 268 TP410
  • SA 182 F6aCL2
  • SB 626 N10276

  • SA 240 S31803
  • SA 182 F51
  • SA 789 S31803
  • SA 387 GR11 Cl 2
  • SA 336 F 11 Cl 2
  • EN 10025 - S235 JR
  • EN 10025 - S275 JR
    • 3.Bill of Material. A mismatch between Channel barrel and Shell Cover barrel materials has been fixed.
    4.External Pressure Calculation. The proper material code is now selected.
    5.ASME Chart CS-3. Now the test for T > 300 °F is correctly done.
    6.Drawing - Nozzle Table. A note has been added for indicating the reinforcing type (Pad or Autorinforce).
    7.Audit Report - Nozzle. If the nozzle diameter is less than the minimum to be reinforced a note is now printed in the datasheet for explicitely indicating wy the calculation has been skipped
    8.Floating Head. Is now possible to select a different material for the Split Ring and the Floating Flange.
    9.Audit Report. The page counting has been revised for avoiding some inconsistencies. Problems caused by welding analysis have been fixed.
    10.ASCII Report. The unit of measure for the tube to tubesheet joint load now is reported correctly as a force.
    11.Audit Report. The compensation for large openings (ASME) is now calculated correcty.
    12.Check Mode. The shell length supplied in input is now manteined for the exchanger.
    13.Nozzles. If the nozzle heigth is supplied in input, it wiil be mantained alerting the user if less than the one required by the program.
    14.Nozzles. If the nozzle heigth is supplied in input, it wiil be mantained and the nozzles are not aligned.
    15.LAN version. Installing programs on the server, they can be executed frm any PC connected in the LAN.
    16.TEMA Expansion Joint. The calculation has been fixed for avoiding the possibility to calculate a negative number of cycles
    17.TEMA Expansion Joint. Also with more than one wave now the Audit Report reports also the internal element conditions for the Hydraulic test.
    18.Nozzle Table. LWN for DN 15, 20 mm have been included.
    19.Import thermal data. The inconsistencies occurring on nozzle positioning have been fixed.
    20.Nozzles. The minimum welding distance is now computed taking care of the maximum distance for compensation, as required by Codes.
    21.Formed Heads. The thickness supplied in input is assumed as is without rounding it to the nearest mm.
    22.Bolt Table. The reference name of the table has been corrected in "TEMA Tab. D5" from "ANSI B18.22" as erroneously indicated before
    23.Nozzles. The formula for "lm" in the VSR/AD-MERKBLATT Audit Reports has been fixed. Now it is congruent with the calculation.
    24.Diagnostic Messages. The messages have been completely revised for a better understanding of them. In most cases also values who generated the message are also printed
    25.Expansion Joint. The calculation of number of cycles is now controlled for avoiding overflow error.
    26.Exchanger Check. The calculation of conical distributor/rear end is now performed correctly also in check mode.
    27.Shell Barrels from pipe. The calculation has been fixed and now the pipe schedule is selected accordingly to the thickness requirements and the component is included in the appropriate section of the BOM list.
    28.The neck length for Elliptical/Torispherical heads has been added as input datum.
    29.The thickness of the formed heads in check for VSR code has been fixed.
    30.The table VSR.1.E.1 of the coefficients C/Co related to the calculation of formed heads according to ISPESL-VSR has been revised according to Rev. 1995 of the code.
    31.The calculation of the tubes tension and compression according to TEMA has been fixed in case of simultaneous pressures.
    32.A bug in the calculation of conical sections to internal pressure according to AD-MERKBLATT has been fixed.
    33.The printout of the calculation of the Hydraulic test pressure has been added to the results of the exchanger calculation.
    34.A new screen related to the Bill of Materials has been added to the program for allowing BOM customization and adding data not available from the program.
    35.The required heigth of nozzles pipe in the BOM has been increased to take into account for working losses.
    36.Nozzles bolts and gaskets have been added in the BOM.
    37.The blind flange has been added as separated item in the BOM.
    38.The barycenter calculation of the exchanger has been added.


    MT-LAYOUT Revision 2.5.0 (January 2004)
    1.Input File. When importing data from the Neutral File the program control the name of the input file for eliminating "/" and "\" characters.
    2.Diagnostic Messages. A control has been included for avoiding program termination in the case when the number of row in a passage is equal to zero.
    3.Diagnostic Messages. In cases when the diameter of the specified nozzle is greater than (Shell Diameter/1.5) a warning message is issued but the calculation is not stopped as before.
    4.LAN version. Installing programs on the server, they can be executed frm any PC connected in the LAN.
    5.Sealing strips. A warning message is issued when the baffles distances is less than 150 mm
    6.Diagnostic Messages. The messages have been completely revised for a better understanding of them. In most cases also values who generated the message are also printed.
    7.An explication note has been added to the calculation results to clarify that the number of holes shown in the passes does not include tie rods.