I haven't heard of Delallo, but if you need another completely egg-free pasta, Tinkyada rice pasta and Chickapea chickpea pastas are made in egg-free facilities.
Per their website, it looks like they produce at least one variety of pasta with egg and a few labels say 'may contain egg' but most others are listed as being made in an egg and nut free facility so it looks like they have some safe options. Their website has quite a bit of information, actually. Hopefully you can find Delallo's contact information and call for specifics.