SIERRA model 7200 is concentric rubber lined valve, double flanged or wafer type that shall be suitable for installation between flanges. Face to face according to EN 558 table 5 basic series 20 valves are drilled in accordance with EN 1092-2. The disc has a profiled sealing edge which requires minimal deformation of the liner to achieve a tight sealing.
Wafer/U-Section Butterfly Valves Product Overview
|DN50 – DN800
|-20°C TO +70°C
|Manual with GB, pneumatic or electrically actuated
|Manufactured under a certified ISO 9001 quality system
|Municipal water and irrigation pipeline mains and distribution networks, pumping stations and intakes, ground reservoirs and elevated tanks, water treatment plants, primary and secondary cooling for power stations
The model 1100/S Pressure Reducing Valve is a hydrauli-cally operated, diaphragm actuated, control valve that reduces higher upstream pressure to lower constant downstream pressure regardless of ﬂuctuating demand or varying upstream pressure, Thanks to a Sole-noid Control, the Valve will also open or close in response to a signal
Sierra water air valve series 6400-PP Are Hydromechanical devices designed to automatically release or admit air during pipeline filling, draining, or operation of a water pipeline or system. The safe operation and efficiency of a pipeline are dependent on the continual removal of air from the pipeline.
The model 2400 is a pressure management valve that reduces high line pressures to lower distribution system levels, as it can switch between two pilots by means of a latching solenoid. The solenoid control feature can be activated by an electrical signal from a battery-operated controller.