What does the supplier and factory say?
This is obviously a minor damage, BUT :
As supplier (but not of Cameron) of a certified valve we would at least have required a full documentation of damage, procedure and plan for repair, asked producer if this was acceptable, and required a full documented report of repair, report and if required repair done by a party acceptable to us and factory.
Conclusion: only the party issuing a warranty can say anything about continued warranty if there is damage to the product and the product is repaired (Such is the world.....)