Last updateTue, 19 Mar 2019 4pm



Turning the Tables on Valve Corrosion

Multiple valve manufacturers and users worldwide are finding the value of valve preservation centered on vapor corrosion inhibitor (VCI) technology and related strategies. These strategies reduce manufacturing cycle time, counter the use of products hazardous to the environment and provide more effective corrosion protection than traditional methods.

Design Considerations for High-Temperature Sealing

With growing pressure to combat fugitive emissions and meet strict industry regulations, understanding the latest sealing technologies and design considerations for component solutions in severe applications is becoming increasingly critical. As operating conditions continue to subject valves to ever more extreme temperatures and pressures, sealing them effectively poses a challenge that cannot be met with traditional elastomer and polymer-based gaskets. In these extreme environments, metal seals have much greater design flexibility to address critical issues regarding temperature, pressure, fire safety, leak rate and process compatibility. As a result, metal seals often are the sealing solution of choice in modern valve applications, but numerous design considerations must be taken into account to ensure the seal will perform as expected in these increasingly harsh environments.

The Many Layers of Valve Qualification

While there has been much rhetoric from the new U.S. administration over the past two months about “deregulation,” Cameron’s This email address is being protected from spambots. You need JavaScript enabled to view it. pointed out in his presentation at VMA’s 2017 Technical Seminar there is much more to achieving approved status for valves than meeting governmental regulations.

Daglio joked that there are many terms in use now to attempt to convey just how important valves are. Whether they’re called “supercritical” or “ultracritical” or just “critical,” the bottom line is that valves are essential to the operation of many systems. They must also function in increasingly high pressures and temperatures, as well as in unconventional and extreme environmental conditions, while being robust enough to stand up to highly corrosive chemicals and meet end-user requirements for near-zero leakage, especially valves in gas service.

Valves Help Achieve Net-Zero Water Use

With drought and climate change affecting countries around the world, there is a tremendous need for development of sustainable architecture. One shining example of what can be done with proper planning and intelligent use of existing technology—including smart controls and valves—is the Center for Sustainable Landscapes (CSL) at Phipps Conservatory and Botanical Gardens in Pittsburgh, PA.

The 15-acre campus of Phipps Conservatory and Botanical Gardens includes a LEED-certified Welcome Center and Production Greenhouse, a conservatory and the Center for Sustainable Landscapes, one of the greenest buildings on earth.

How to Improve Control Valve Performance with Positioners

As the final control element in most process control and automation systems, control valves are part of a complex system-within-a-system in which the valve positioner can be an integral component.

The control valve is made up of four principal sub-systems:

  • The valve body, which includes the bonnet and piping inlet and outlet connections.
  • The valve trim, plug, stem, cages, retainers and disc, used to control the flow through the valve body.
  • The actuator, used to provide power to move the valve stem or shaft.
  • The positioner, used to control the position of the valve stem and provide linearization.

Subscribe Fall18


• Print magazine
Digital magazine
• VALVE eNews
Read the latest issue

*to qualified valve professionals in the U.S./Canada

KNOWLEDGE FORUM 2019 300x250

Looking for a career in the Valve Industry?

ValveCareers Horiz

To learn more, visit the Valve Careers YouTube channel to watch the videos below or visit ValveCareers.com a special initiative of the Valve Manufacturers Association

  • Latest Post

  • Popular

  • Links

  • Events

New Products