In industrial piping systems, the gate valve is one of the most widely used valves. Its key advantage lies in providing either a fully open flow path or a complete shutdown, ensuring excellent sealing performance with minimal pressure drop. Because of this, gate valves are regarded as the “gatekeepers” of safe system operation in critical industries such as power generation, petrochemi...

Introduction In industrial fluid control systems, gate valves, as a type of shut-off valve, have long played a key role in opening and closing operations. With increasingly complex operating conditions, higher demands are being placed on valves in terms of corrosion resistance, wear resistance, and service life.   Among the many available materials, duplex stainless steel (ASTM A995 5A) combi...