In most chemical plant sites there are times when it is necessary
to carry out specific fitness-for-service assessments to demonstrate
mechanical integrity of some equipment items until the next scheduled
inspection. This is necessary when significant deteriorations are
found or if they are expected to initiate.
The staff at PP SIMTECH have specialist hands-on knowledge incorporating
more than 25 years of integrated experience in the application of
fitness-for-service assessment techniques for this purpose.
Additionally we have successfully used this technology to justify
extension of current inspection interval for some items; to justify
extension of equipment life; to justify change of duty as well as
to complement the RBI Assurance process.
life assessment of vessels, piping and storage tanks due to
life assessment of vessels and piping subjected to high
life assessment of vessels and piping subjected to fatigue
due to pressure
or thermal cyclic loading.
assessment of vessels, piping and storage tanks
including the application of finite element methods
equipment integrity .
assessment of proposed modifications and repairs.
of changes in process parameters or change of duty on
Types of equipment items where we have carried out these fitness-for-service
assessments include reactors, distillation columns, chemical storage
spheres, reformer components, superheater headers, other types of
pressure vessels, various storage tanks and piping, which have been
subjected to a variety of thinning damage mechanisms
involving localized and general wastage.
Capability of PP SIMTECH in reliably matching plant users needs
is demonstrated by illustration of two case study examples.