Design of bellows element is easy compared to the design of the ancillaries. For element design with some exception calculation formula are given in the standards and by following them the design can be done. Without a program it is slow and very error prone.

Design standards and good engineering require that all elements of the expansion joint have to be designed. However minimal information is given how to do this. For a loaded tie rod design it is easy to find a design formula in engineering literature but for the remainder very litle or nothing.

Ancillaries can be designed using FEA but it requires special skills and expensive software. Our software solves this design problem. We have a program for each of the main ancillary design. All of the programs are easy to use and they have at least 30 year proven record to give safe and sound design.

All programs are for Windows operating system. They use common material database and therefore there is no need to enter any material values.

Design report can be printed or directry saved as PDF file.

Support Page - User ManualFlangeTool is a program to calculate oval and round flanges used for universal, hinge, and gimbal expansion joints. Flanges can be blind or with a centre hole and both types may or may not have flange bolts. Results may be slightly conservative compared to finite element methods but are faster and cheaper to produce. Intended users are estimators, sales and designers. It includes calculation of the bellows' pressure force and allows you to include external additional loading of the rods attached to the flanges.

Read morePin design is not as easy as many designers assume. Engineering literature gives various solutions to do the design but there is no uniform agreement how the pins should be designed for expansion joint. Using our software pins will not fail and they pass all design reviews.

PinMaster is a program for bellows hinge pin calculation. It includes calculation of the bellows' pressure force and allows you to include external additional loading of the pins.

Program gives minimum pin diameter for standard pin and also for tight fitting pin where bending is not considered. We recommend the use of the standard pin size. For instance EN standard specifies that bending has to be considered.

RodMaster is a program for expansion joint rod calculation. It includes calculation of the bellows' pressure force and allows the inclusion of external additional loading of the rods.

Tension and compression loadings are included.

GimbalMaster is a program to calculate three types of gimbal rings used in expansion joints. There are solid round ring, hollow round ring and solid rectangular gimbal. It includes calculation of the bellows' pressure force and allows you to include external additional loading of ring.

Read moreBracketMaster is a program to calculate various types of restraining brackets for expansion joints. It includes calculation of the bellows' pressure force and allows you to include external additional loading of the brackets.

Read moreExpansion joint movements are not always given. It is relatively easy to calculate the movements using heat expansion coefficients from the literature but it can be slow. We have two programs to do these calculations.

AxMove Tool is calculate axial movement in a straight pipe line. There is nothing stopping to use it to calculate any kind of heat expansion of common metals.

HinMove Tool is a program to quickly calculate bellows' required angular movements in a 3 hinge system due to thermal expansion.

The main purpose of VesselTool is to calculate external pressure case to ASME VIII Div 1 UG 28. This calculation is time consuming and error prone because of two factors, which have to be read from graphs or interpolated from tables. Calculation has also many fine details.

Externally pressurized expansion joints are typically used in heat exchangers and large diameter ducts or pipes around for instance condensers. External pressure calculation is critical to prevent failures.

In addition program includes wall thickness calculations to ASME VIII Div 1, ASME B31.3 and ASME B31.1, Test pressure calculation to ASME B31.3 and flat face flange calculation with gasket.