Valves and fittings - vonRoll hydro
vonRoll hydro provides you with valves, fittings and solutions for the gas, wastewater and water industry. ... The knife gate valves seal in both directions of flow. ... Control valve in pipes with high operating pressure, large pressure differences and high flow speeds, pump starting valve, backflow prevention for pumps with ...
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vonroll-hydro's website is vonroll-hydro.com