We haven’t received pictures or deeply details, but they required a site intervention for inspection and repair.
At this stage we are sure if failure are caused by valve itself or by some other reason ( i.e. foreign material inside ).
We are sourcing minimum spare parts for repair ( packing, gasket ).
We can send also the dimension for local search and procurement in order to compare cost and lead time.
From Master Pack, we kindly required a budget offer for site intervention,