Power Source for Hydraulic Valves and Dampers

Self contained hydraulic power unit
Rotork

A range of fluid processing and other flow control operations employ hydraulically actuated valves or dampers. Hydraulic actuators use a pressurized incompressible liquid as the motive force to drive the actuator mechanism. They are generally capable of operating large loads at higher speeds than electric actuators, and a smaller size than similarly capable pneumatic actuators. They are not subject to limited run times, power loss, or air line freezing.

A power unit is required to provide adequate hydraulic fluid and pressure for each application. A single unit can service more than one actuator or damper.

Rotork, a globally recognized manufacturer of valve actuators, also provides self contained hydraulic power units specifically tailored to applications involving valve and damper actuators. With fluid capacities up to 7,500 liters (2,000 gallons) and operating pressures up to 345 bar (5,000 psi), the skid mounted units are suitable for a wide range of applications. Each system is customized to accommodate the requirements of the intended application.

Share your fluid control and valve actuation challenges with product specialists, combining your process and project knowledge with their product application expertise for effective solutions.

Rotork Fluid Systems Hydraulic Unit from CTi Controltech

Lined Ball Valves Provide Corrosion Protection Without Exotic Alloys

Cutaway view of lined ball valve
Flowserve Atomac

Ball valves are a staple of fluid process control, delivering a host of design and performance attributes making them the valve of choice for many applications. When the process involves corrosive fluids, steps must be taken to accommodate the aggressive nature of the media, so that valve trim and body are not prematurely degraded by the intended use.

A good solution for valves exposed to aggressive media is an interior lining of fluoropolymer or other material resistant to the corrosive effect of the fluid. Employing a lining protects the valve metal parts from contact with the fluid, allowing the use of less expensive metals in the construction of valve body and other valve components. In extreme cases, ball valves can be delivered with fluid paths fabricated of ceramic material for superior corrosion and erosion resistance.

Flowserve Atomac is a globally recognized leader in the manufacture of lined ball valves, as well as lined strainers, sight glasses, sampling valves, and check valves. Lined ball valves are available in essentially all the configurations expected of more conventional ball valves, including diverter and control service versions.

An overview of the Atomac line is included below. Share your corrosive fluid processing challenges with a product specialist, combining your process expertise with their product application knowledge to deliver effective solutions.

Lined Ball Valves Provide Corrosion Protection from CTi Controltech

Smart Boiler Level Indication Delivers Operational Benefits

Smart level control delivers operational benefits

Maintaining proper water level in a boiler is necessary for safe and efficient operation. Historically, boiler level measurement and control were accomplished with mechanical means. Today, sensor technology, electronics, and software bring improved accuracy and a host of other useful features to the water level control system.

Clark Reliance, a globally recognized leader in level indication and control, separation and filtration for steam systems, has developed a smart boiler level indication system to enhance boiler operation. The video included below provides an illustrative overview of the system, how it works and the benefits it will bring to a new or retrofit installation.

Share your combustion and steam challenges with experienced specialists, and combine your site and project knowledge with their expertise to deliver an effective solution.

Specialized Valve Trim Controls Flow and Pressure Drop

Fluid process control operations can entail fluid velocities, pressures, or other characteristics that can prove challenging on a number of levels, not the least of which is flow control. Valve manufacturers have developed a wide array of specialized designs and configurations to provide flow control while mitigating or eliminating some undesirable effects associated with restricting fluid flow.

Inherent in the restriction of flow is the possibility of creating or increasing some generally undesirable conditions in the pipe.

• Velocity
• Noise
• Vibration
• Erosion
• Cavitation

Depending upon the process conditions, any of these elements could have a decidedly negative impact upon process performance, workplace environment, or system longevity. The video provides an example of how one manufacturer of severe service ball valves, Mogas, modifies their design to address these potentially negative aspects while providing accurate flow control. By adding elements to the outlet side of a ball valve, an entirely different operating profile is achieved. Watch the video for all the details, as it is well produced and illustrated.

Share your fluid process control challenges with experienced application specialists. Combine your process expertise with their product application knowledge to produce effective solutions.