Shut off and control butterfly valves are easy to install, competitively priced and compact. They are designed for use in large numbers in industrial plants. Richter recently significantly expanded its butterfly valve range for isolation and control and can now supply valves with a PTFE disc/stem unit up to DN 750 or with a metallic disc/stem unit up to DN 1000. The body liners are made of PTFE.
Richter butterfly valves have proven themselves in a wide variety of process plants. They isolate and control corrosive, hazardous and pure liquids, gases and vapours. The valves are soft-seated and gas-tight, both with lined and metallic disc/stem units. They can be used for operating pressures from 0,1 mbar vacuum to 10 bar and at operating temperatures from -40 to 200°C.
The wetted materials are FDA-compliant and therefore suitable for use in food processing, pharmacy and other sectors, versions with a metallic disc/stem unit are suitable for free-flowing bulk materials.
The double-action stem sealing is maintenance-free and self-adjusting. One of the special features of the valve with PFA disc/stem units (DN 50–400) is the optionally available safety stuffing box, allowing the valves to be used for environmentally hazardous media.
The valves can be operated with a hand lever (lockable), a worm gear with hand wheel or a pneumatic/electric actuator.
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