National Standard Wedge Gate Valve Z41W-1.6MPa Design Features and Product Range 1.Material selection is meticulous, complying with relevant domestic and international standards, with comprehensive high material quality. 2.Complies with advanced domestic and international standards, featuring reliable sealing, excellent performance, and attractive appearance. 3.The sealing pair is matched with advanced and reasonable design. The sealing surfaces of the gate and seat are hardfaced with Stellite cobalt-based hard alloy of different hardnesses, providing reliable sealing, high hardness, wear resistance, high temperature resistance, corrosion resistance, good galling resistance, and long service life. 4.The stem is quenched and tempered with surface nitriding treatment, offering good corrosion resistance, galling resistance, and wear resistance. 5.Adopts wedge-type flexible gate structure. Thrust bearings are provided for medium and large diameters, with low friction and equipped with impact handwheel for easy opening and closing. 6.Various piping flange standards and flange sealing face types can be provided to meet various engineering requirements and user needs. Product Overview The high and medium pressure flanged gate valve is suitable for pipelines with nominal pressure PN1.6 to 16.0MPa and working temperature ≤-29°C to 550°C in various systems such as petroleum, chemical, hydraulic, and thermal power stations, for shutting off or connecting media in pipelines. Applicable media include water, oil, steam, acids, alkalis, ammonia, urea, and sulfur-bearing natural gas.