2
When Blackhall delivered the seemingly impossible through Unrivalled After-Sales Service!
The critical valves at Llwyn-On Reservoir that had previously been declared to be beyond economical repair were refurbished by Blackhall Engineering after overcoming considerable challenges in inspection & gaining safe access to the outlet tunnel, allowing the valves to be taken back to the UK factory for repairs. The two DN900 Larner-Johnsons initially installed in 1926 were successfully brought back to the life for at least another 50 years.
Read the British Dam Technical paper here https://goo.gl/abxbRu
