Flowserve Argus Ball Valves - Manual (Page 22)

Argus
Accessories
22
Supplementary Equipment
Valve Actuators (Adjusting Range 90°)
Valve actuators are used for ball valve automation. They are available in an electric or pneumatic/hydraulic
version.
Position Control Systems
In automatic operation the drives of the ball valves are controlled by position control systems. Such position
control systems are realized by process-controlled operations for in-stance.
Gearbox with Hand Wheel
Manually operated gears are used for large actuating torques. They are available in mechanical version.
Position Limit Switch
Position limit switches are used to indicate the valve position in controlled areas.
Underfloor Fittings
Underfloor fittings are necessary for installing ball valves in the ground.
Metal Seals
0106-01-001
1 Seals with Soft Inserts
2 Metal Seals
Metal seals are used when the limits of use of seals with soft inserts are exceeded (see pressure-
temperature diagram above), or for abrasive or aggressive substances. Please consult ARGUS in case of
need.
Safety Devices
Safety devices are used to lock the ball valves to prevent unauthorized use.
Forced Shut-off Circuits
Forced shut-off circuits are used in processes and can be coded with keywords.
Safety Control Circuits
Safety control circuits, e.g. dead man’s button, are used to cause the valve to automatically reach the safety
position in processes.
Heating Jackets
Heating jackets are used to heat ball valves.
Secondary Sealing Systems
Secondary sealing systems are emergency sealings which restore the sealing effect of damaged seals by
injecting a plastic sealing compound.