Strength calculations and solidity survey of TONISCO hot tapping gas valves

Abstract

The aim of this bachelor thesis was to implement a solidity survey and strength calcula-tions of TONISCO hot tapping gas valves under the support of ANSYS workbench and with conservative hand calculations as far as possible. The TONISCO hot tapping gas valves are available in DN50, DN80 and DN100 and therefore every valve has to be proven according to its solidity. For the most appropriate solution the manufacturer also has to apply some main principles. The manufacturer has to eliminate or to reduce hazards as far as is reasonably possible, to apply appropriate protection measures against hazards which are not possible to eliminate and where appropriate, to inform users of residual hazards to reduce all risks.

During the implementation of this Project, I used methods such as conservative calculations according to standards and simulations supported by software. Delivered data by the simulations were evaluated, used for further calculations and discussed.

The simulations were done for worst case conditions and can be seen as a approximation of the reality.

As a result I found out that the TONISCO hot tapping gas valves can be seen as safe for a use under a pressure of PN10 in all cases. The TONISO hot tapping gas valves DN80 and DN50 can even be seen as safe for PN16.