Dn700 vacuum breakers and Dn300 air release/inlet valves to be installed on penstock downstream the Ø4000mm butterfly valve at Gelbakhskaya HPP have been designed.

Главная > News > Dn700 vacuum breakers and Dn300 air release/inlet valves to be installed on penstock downstream the Ø4000mm butterfly valve at Gelbakhskaya HPP have been designed.