Nom Diameter 300mm and above
Pressure range up to 70 bar
Spherical Valves are designed for Turbine Inlet duty provided with resilient or sliding metal to metal sealing system offered with upstream and downstream seals. The service can be single acting or double acting to minimise seal resonance and maintenance seal double acting with hydraulic lock feature.
Valves designed specifically for Hydro Power application.
Operation is via a single acting, closed by means of specifically designed counterweight or
a double acting hydraulic cylinder .
Materials are selected to meet customer specific requirements.
The body is split for assembly of the reinforced rotor having integrally attached shafts.
Operation preferably is via hydraulic oil, or alternatively penstock water pressure.
Valve are designed with a locking feature for maintenance purpose.
*** The pictures show a 68" eTec Spherical Valve supplied to a UK Hydro Power Station for a Turbine Inlet application.
Note counterweight shaped to avoid valve pit.
