Valve knowledge

In valve selection, pressure rating is one of the most critical parameters. PN10, PN16, and Class 150 are the three most commonly used pressure ratings in engineering, yet in practice, their meanings and differences are not always fully understood. A clear understanding of these pressure ratings and how they differ is essential to ensure proper […]

Global freshwater demand has made seawater desalination an essential solution in many coastal regions, with RO, MSF, and MED being the primary technologies used to produce potable water. Valves are critical components within these systems, responsible for flow control, equipment isolation, pump protection, and overall plant safety. Unlike conventional water systems, seawater environments impose far

In HVAC (Heating, Ventilation, and Air Conditioning) water systems, valves are essential components that ensure the proper operation of the piping network. They are typically installed near pumps, heat-exchange equipment, and pipeline branches, where they provide functions such as pipeline isolation, system zoning, and shut-off during equipment maintenance. At specific locations where backflow must be

In pipeline system design, the role of a check valve extends beyond simply preventing backflow—it is closely tied to equipment protection and the overall stability of system operation. An inappropriate selection can increase the risk of water hammer, raise energy consumption, and even compromise long-term reliability. Among the various check valve types, swing check valves

In both industrial and municipal pipeline networks, the choice of connection method directly influences sealing integrity and long-term maintainability. Known for their structural rigidity and consistent sealing capability, flanged gate valves have become a preferred isolation solution for larger pipelines. Understanding these characteristics is essential for making sound engineering selections. What Is a Flanged Gate

In many pipeline systems, butterfly valves and gate valves are the two most commonly used shut-off valves. The choice between them is not about which technology is more advanced, but about how well the valve matches the actual operating conditions and system requirements. Understanding their core differences is key to making an economical and reliable

What Is a Triple Offset Butterfly Valve A triple-offset butterfly valve is a high-performance type of butterfly valve and a key achievement in modern valve engineering. Through its unique triple-offset geometric design, it overcomes many of the limitations found in conventional butterfly valves and enables a near-zero-leakage metal-to-metal seal. This makes it particularly well suited

Municipal pipeline networks are a core component of urban water supply and drainage systems, and their safety, stability, and economic efficiency are critical to the reliable operation of a city. As key devices for controlling flow and isolation,  flange butterfly valves are widely used in municipal pipeline networks, and valve selection has a direct impact

During butterfly valve selection, engineers and procurement professionals often face a common question: why do some projects require compliance with API 609, while others clearly specify EN 593? From an external perspective, butterfly valves built to these two standards may look very similar in terms of overall structure. However, the design philosophy behind them and

In water supply, wastewater, and industrial water systems, valves are core components used to control fluid flow and isolate sections of the system. Their sealing performance directly affects operational safety and overall system stability. In long-term service, water valves are subjected to frequent opening and closing, pressure fluctuations, and continuous exposure to the process medium.