https://www.vonroll-hydro.world/en/gate-valves-wastewater/product/schieber-mit-vollschutz-fig-5598.html
Fully protected slide gate valve Fig. 5598 - VONROLL HYDRO - Security for strategic water
Fully protected slide gate valveFig. 5598 | PN 10/16 | F5with flanges Wastewater
slide gate valve