Last updateFri, 01 Jul 2016 3pm



Problem-Driven Innovation

Developing Alternative Technology to Improve Product Performance

Problem Driven Innovation 2Industrial product engineering teaches us to understand the difference between problems and conditions. Control valve engineering in particular presents a variety of problems that interplay to reduce reliability.

Regardless of how the metering plug or the flow path is shaped, the fluid must make several turns to pass through a sliding stem, plug-in-seat globe control valve. Due to that design condition, damage from extended operation at high pressure drop is a problem. However, a solution to the problem is constrained by the condition, and the dominance of the condition stifles innovation in a mature product line.

Horizontal Knife Gate Valves: Challenges and Solutions

Horizontal Knife Gate ValveKnife gate valves are more commonly installed vertically, so why might a knife gate be positioned horizontally? Use of knife gate valves on the horizontal plane is more widespread than you might expect. For instance, horizontal installation would be beneficial when installing vertical pipes and encountering spacing issues, and when using various types of media. Knife gates were originally designed to be situated vertically, so there are certain considerations to be made and challenges to face when installing valves horizontally, especially valves 18 inches and larger.

Strategies for Successful SIS Valve Diagnostic Implementation

Control RoomEnd users and contractors alike strive to design and operate plants with maximum plant safety and efficient production, and safety instrumented system may be required to reduce risk to an acceptable level. At times, diagnostics beyond valve functional proof tests such as partial stroke tests are implemented to provide additional diagnostic coverage necessary to meet a target SIL or desired proof test intervals. Alerts and test trends can also provide predicative diagnostics. This article explores considerations when implementing diagnostics to maximize usage and benefits.

Gasket Performance Standards and Application Toward Fugitive Emissions Reductions

ShortsTemperatureMost engineers, technical personnel and installation professionals involved with valve design and installation will inevitably need to consider a stationary seal at some point in their career. Stationary seals are everywhere in industry and unavoidable where valves are used. Bonnet gaskets, multi-piece valve body seal gaskets and flange connection gaskets are the most common stationary seals encountered. The problem, though, is that gaskets generally are never given the design and maintenance attention they require.


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