When we devt in Java or other languages we need to perform static code analysis. In OutSystems, is there anything equivalent to check on the models developed? Thanks.
What is your use-case for performing static code analysis ? Is it related with security scans ?

There is currently no tool for security auditing an OutSystems application directly through the OutSystems model, however the OutSystems Platform generates standard Java or .NET code, so you should be able to scan that code using the tools you're already used to.
HP Fortress has been used in the past to evaluate the generate code, by OutSystems itself, and I know a few other groups have investigate it (though I don't know the results of the investigation).

The name is actually HP Fortify, but we had customers using other static code analsyis tools (e.g. Checkmarx).