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 little 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 directly saved as PDF file.

Support Page - User Manual

FlangeTool 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.

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Pin 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.

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BracketMaster 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.

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