Rotary Valves

Through Rotary Valves, Fouress has brought to India over 50 years of B Fouress Private Limited experience in design of these valves for hydro schemes the world over. Over this period the Rotary valves have undergone a lot of design changes to cope up with the water heads up to 795 meters or the lower heads associated with water distribution scheme. Used at the inlet of hydro turbines, these valves perform the function of isolating water turbines and emergency closure against turbine trips. One of the prominent advantages of these valves is that they have a clear bore when in open condition, thus offering a negligible friction head loss. While the low-pressure rotary valves are supplied with resilient rubber seals, metallic seating surfaces are provided for higher pressures. A combination of metal and resilient seals can also be specially designed. Our manufacturing range includes sizes between 400 mm to 2600 mm and operating pressure up to 80 kgcm2 with the operation accomplished by one or two double acting hydraulic cylinders. Depending on the working parameters, we can also offer valves with alternative drive mechanism namely Electrical and Pneumatic.